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Home My WebLink About2018 International Fuel Gas CodeFUEL GAS CODE I�Mrs AmarioanGoe Association ¢c /aGA I NTE R N A T I O N A L COD ES" 2018 I -CODE BONUS OFFER Get a free 45-day online subscription to ICC's premJumACCESS' 2018 I -Codes Complete Collection Test drive many powerful, time -saving tools available to you from premJumACCESS To activate your bonus, visit www.iccsafe.org/codebonus k A Member of the International Code Family° INTERNATIONAL FUEL GAS CODE° I.i Agffi,,AOICC N,fiuN¢,TA,d,awo.mALLh¢d,mansbyan O,d Party o,±DFI,m®dahONtd Emgh ass¢o,FA mpyncg and Mwodwg,ISd ANY VNAVTHORIVED REPRODUCTION ORDISIRIB VIION LEA VIOLATION OF THE FEDERAL COPYRIGHT ACT AND THE LICENSE AGREEMENT, AND SUBJECT TO CIVIL AND CRIMINAL PBNALTIBSTHBRB VNDBR 2018 International Fuel Gas Code® Date of First Publication August 31, 2017 First Printing August 2017 ISBN 978-1-60983-741-9 (soft-cover edition) ISBN 978-1-60983-740-2 (loose-leaf edition) COPYRIGHT © 2017 by INTERNATIONAL CODE COUNCIL, INC ALL RIGHTS RESERVED This 2018Intemahonal Fuel Gas Code® is a copyrighted work owned by the International Code Council, Inc (ICC) Without advance written permission from the ICC, no part of this book maybe reproduced, distributed or transmitted in any form or by any means, including, without limitation, electronic, optical or mechanical means (by way of example, and not limitation, photocopying, or recording by or in an information storage retrieval system) For information on use rights and permissions, please contact ICC Publications, 4051 Flossmoor Road, Country Club Hills, IL 60478 Phone 1- 888-ICC-SAFE (422-7233) Trademarks "International Code Council," the "International Code Council' logo, "ICC," the "ICC' logo, "International Fuel Gas Code," "IFGC and other names and trademarks appearing in this book are registered trademarks of the International Code Council, Inc , and/or its licensors (as applicable), and may not be used without permission Material designated IFGS by AMERICAN GAS ASSOCIATION 400 N Capitol Street, N W Washington, DC 20001 (202) 824-7000 Copyright © American Gas Association, 2017 All rights reserved T023808 PRINTED IN THE USA Copyng11tOO2017 ICC ALL RIGHTS RESERVED Awned by HDO,, Van Dme(R dme pooch od om).(Qty of PnmdNmod)Odo,Nomb,,x1o08170S601 JM 15, xm.o oc 51 AM (PET) t to Lie Affiee^® Rt, ICC No fwN¢[TAodomoo.m AtO,Pepeodomo- by anytlt Party o, Axmboemd,Oo d Mglo—ody mpyncg and Nyodwg LARISd ANY UNEARTHED RIVER REICLA VCTION OR DISTRIBITTIO N IS A VIOLATION OF THE FEDERAL COPYRIGHT ACT AND THE LICENSE AGREEMENT. AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER Introduction Development PREFACE The International Fuel Gas Code' (IFGC°) establishes minimum requirements for fuel gas systems and gas -fired appliances using prescriptive and performance -related provisions. It is founded on broad -based principles that make possible the use of new materials and new fuel gas system and appliance designs. This 2018 edition is fully compatible with all of the International Codes' (I - Codes") published by the International Code Council° (ICC"), including the International Building Code°, International Energy Conservation Code°, International Existing Building Code', Interna- tional Fire Code', International Green Construction Code', International Mechanical Code', Interna- tional Plumbing Code', International Private Sewage Disposal Code°, International Proper Maintenance Code', International Residential Code', International Swimming Pool and Spa Code', International Wildland-Urban Interface Code', International Zoning Code' and International Code Council Performance Code'. The I -Codes, including this International Fuel Gas Code, are used in a variety of ways in both the public and private sectors. Most industry professionals are familiar with the I -Codes as the basis of laws and regulations in communities across the U.S. and in other countries. However, the impact of the codes extends well beyond the regulatory arena, as they are used in a variety of nonregulatory settings, including: • Voluntary compliance programs such as those promoting sustainability, energy efficiency and disaster resistance. • The insurance industry, to estimate and manage risk, and as a tool in underwriting and rate decisions. • Certification and credentialing of individuals involved in the fields of building design, con- struction and safety. • Certification of building and construction -related products. • U.S. federal agencies, to guide construction in an array of government -owned properties. • Facilities management. • 'Best practices' benchmarks for designers and builders, including those who are engaged in projects in jurisdictions that do not have a formal regulatory system or a governmental enforcement mechanism. • College, university and professional school textbooks and curricula. • Reference works related to building design and construction. In addition to the codes themselves, the code development process brings together building pro- fessionals on a regular basis. It provides an international forum for discussion and deliberation about building design, construction methods, safety, performance requirements, technological advances and innovative products. This 2018 edition presents the code as originally issued, with changes reflected in the 2003 through 2015 editions and further changes approved by the ICC Code Development Process through 2017 and standard revisions correlated with ANSI Z223.1-2018. A new edition such as this is promulgated every 3 years. This code is founded on principles intended to establish provisions consistent with the scope of a fuel gas code that adequately protects public health, safety and welfare; provisions that do not unnecessarily increase construction costs; provisions that do not restrict the use of new materials, products or methods of construction; and provisions that do not give preferential treatment to par- ticular types or classes of materials, products or methods of construction. 2018 INTERNATIONAL FUEL GAS CODE" I " ' (ATFIght @ 2017 ICC ALL RIGHTS RESERVED Awned by H®Ih¢ Van DmA(Rv dme Oo,dA od om),(Qty of FRmdNmod) O[do, N=b,, *1 008170S6 01 JM 15, m0 oc 51 AM (PET) Mt,b,mt to ( LEA Ag,, ^®'^Rt, ICC No fwN¢[TAodomo,,m AtO, goodomo- by any Ot Party o, AAmboemd,Oo[vsd Mglo—ody oTyncg and Nyodwg L,oIRb¢Ad ANY VNAVTHO RIVER REICLA VCTION OR DISIRIBITTO N IS A VIOLATION OF THE FEDERAL COPYRIGHT ACT AND THE LICENSE AGREEMENT. AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER Format Maintenance The International Fuel Gas Code is segregated by section numbers into two categories— "code" and "standard" —all coordinated and incorporated into a single document. The sections that are "code" are designated by the acronym "IFGC" next to the main section number (e.g., Section 101). The sec- tions that are "standard" are designated by the acronym "IFGS" next to the main section number (e.g., Section 304). A subsection may be individually redesignated as an "IFGS" section where it is located under an "IFGC" main section. The International Fuel Gas Code is kept up to date through the review of proposed changes submit- ted by code enforcement officials, industry representatives, design professionals and other inter- ested parties. Proposed changes are carefully considered through an open code development process in which all interested and affected parties may participate. The ICC Code Development Process reflects principles of openness, transparency, balance, due process and consensus, the principles embodied in OMB Circular A-119, which governs the federal government's use of private -sector standards. The ICC process is open to anyone; there is no cost to participate, and people can participate without travel cost through the ICC's cloud -based app, cdp- Access°. A broad cross section of interests are represented in the ICC Code Development Process. The codes, which are updated regularly, include safeguards that allow for emergency action when required for health and safety reasons. In order to ensure that organizations with a direct and material interest in the codes have a voice in the process, the ICC has developed partnerships with key industry segments that support the ICC's important public safety mission. Some code development committee members were nomi- nated by the following industry partners and approved by the ICC Board: • American Gas Association (AGA) • American Institute of Architects (AIA) The code development committees evaluate and make recommendations regarding proposed changes to the codes. Their recommendations are then subject to public comment and council -wide votes. The ICC's governmental members —public safety officials who have no financial or business interest in the outcome —cast the final votes on proposed changes. The contents of this work are subject to change through the code development cycles and by any governmental entity that enacts the code into law. For more information regarding the code devel- opment process, contact the Codes and Standards Development Department of the International Code Council. While the I -Code development procedure is thorough and comprehensive, the ICC, its members and those participating in the development of the codes disclaim any liability resulting from the publication or use of the I -Codes, or from compliance or noncompliance with their provisions. The ICC does not have the power or authority to police or enforce compliance with the contents of this code. Code Development Committee Responsibilities (Letter Designations in Front of Section Numbers) In each code development cycle, proposed changes to the code are considered at the Committee Action Hearings by the International Fuel Gas Code Development Committee, whose action consti- tutes a recommendation to the voting membership for final action on the proposed change. Pro- posed changes to a code section that has a number beginning with a letter in brackets are considered by a different code development committee. For example, proposed changes to code sections that have [BS] in front of them (e.g., [BS] 302.1) are considered by the IBC —Structural Code Development Committee at the Committee Action Hearings. IV 2018 INTERNATIONAL FUEL GAS CODER S " ' CopynghtOo2.017 ICC ALL RIGHTS RESERVED A—LDd by H®Ih¢ Van DmA(Rvdme Oo,dA od om),(Qty of FRmdNmod)O[do,N=b,,*1008170S601 JM 15. ZMO oc 51 AM (PET) Mt,mmt to I (firTER 1, sAgffiAvom Rt, ICC Nootths �TAodomoo.mAtO, �goodomo-by any Ot Party o,AAmboema Romsd Mgle —ooly oTymg and Nyodwg TMIRISAd ANY VNAVTHO OLDER REPROD ,,MN OR D ISIRIEVTION IS VIOLATION OP THE FEDERAL COPYRIGHT 11 AND THE LICENSE AGRE EM ENT. AND REJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER The content of sections in this code that begin with letter designations is maintained by other code development committees in accordance with the following: [A] = Administrative Code Development Committee; [BF] = IBC —Fire Safety Code Development Committee; [BG] = IBC —General Code Development Committee; [BS] = IBC —Structural Code Development Committee; [E] = International Energy Conservation Code Development Committee; [F] = International Fire Code Development Committee; and [M] = International Mechanical Code Development Committee. [P] = International Plumbing Code Development Committee For the development of the 2021 edition of the I -Codes, there will be two groups of code devel- opment committees and they will meet in separate years. Group A Codes Group B Codes (Heard in 2018, Code Change Proposals (Heard in 2019, Code Change Proposals Deadline: January B, 2018) Deadline: January 7, 2019) International Building Code Administrative Provisions (Chapter 1 of all — Egress (Chapters 10, 11, Appendix E) codes except IECC, IRC and IgCC, administra- - Fire Safety (Chapters 7, 8, 9, 14, 26) tive updates to currently referenced Stan- -General (Chapters 2-6, 12, 27-33, dards, and designated definitions) Appendices A, B, C, D, K, N) International Fire Code International Building Code —Structural (Chapters 15-25, Appendices F, G,H,I,1,L,M) International Fuel Gas Code International Existing Building Code International Mechanical Code International Energy Conservation Code — Commercial International Plumbing Code International Energy Conservation Code — Residential — IECC—Residential — IRC—Energy (Chapter 11) International Property Maintenance Code International Green Construction Code (Chapter 1) International Private Sewage Disposal Code International Residential Code — IRC—Building (Chapters 1-10, Appendices E, F, H,1, K, L, M, 0, 0, R, S, T) International Residential Code —IRC—Mechanical(Chapters 12-23) — IRC—Plumbing (Chapters 25-33, Appendices G, I, N, P) International Swimming Pool and Spa Code International Wildland-Urban Interface Code International Zoning Code Note: Proposed changesto the ICC Performance Code IN will be heard by the code development committee noted in brack- ets [ ] in the text of the ICC Performance Code IN 2O18 INTERNAT10NAL FUEL GAS CODE" v I " ' (AcynghtOo2.017 ICC ALL RIGHTS RESERVED A—LDd by H®Ih¢ Van Dme(RvdrtpOo,dv odom).(QtyofRo,dNmod)O,do,N=b¢*1008170S601 JM 15. Z.mo oc Sn AM (PET) pu,rvantto ( Lie Agffievom Rt, ICC NofwN¢[TAod,Ao,,m AtO, good,Ao- by any Ot Party o, Axmboem a Romsd Mglo—ody oryncg and Nyodwg T,oIRbAd ANY VNAITHO RIVER REPRODUCTION OR DISTRIBUTION IS VIOLATION OF THE FEDERAL COPYRIGHT ACT AND THE LICENSE AGREEMENT. AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER Code change proposals submitted for code sections that have a letter designation in front of them will be heard by the respective committee responsible for such code sections. Because differ- ent committees hold Committee Action Hearings in different years, it is possible that some propos- als for this code will be heard by committees in both 2018 (Group A) and the 2019 (Group B) code development cycles. For instance, every section of Chapter 1 of this code is designated as the responsibility of the Administrative Code Development Committee, which is part of the Group B portion of the hearings. This committee will hold its Committee Action Hearings in 2019 to consider all code change propos- als for Chapter 1 of this code and proposals for Chapter 1 of all I -Codes except the International Energy Conservation Code, International Residential Code and International Green Construction Code. Therefore, any proposals received for Chapter 1 of this code will be assigned to the Adminis- trative Code Development Committee for consideration in 2019. It is very important that anyone submitting code change proposals understands which code development committee is responsible for the section of the code that is the subject of the code change proposal. For further information on the code development committee responsibilities, please visit the ICC website at www.iccsafe.org/scoping. Marginal Markings Solid vertical lines in the margins within the body of the code indicate a technical change from the requirements of the 2015 edition. Deletion indicators in the form of an arrow (E*) are provided in the margin where an entire section, paragraph, exception or table has been deleted or an item in a list of items or a table has been deleted. Coordination of the International Codes Italicized Terms The coordination of technical provisions is one of the strengths of the ICC family of model codes. The codes can be used as a complete set of complementary documents, which will provide users with full integration and coordination of technical provisions. Individual codes can also be used in subsets or as stand-alone documents. To make sure that each individual code is as complete as pos- sible, some technical provisions that are relevant to more than one subject area are duplicated in some of the model codes. This allows users maximum flexibility in their application of the I -Codes. Words and terms defined in Chapter 2, Definitions, are italicized where they appear in code text and the Chapter 2 definition applies. Where such words and terms are not italicized, common -use defi- nitions apply. The words and terms selected have code -specific definitions that the user should read carefully to facilitate better understanding of the code. 2018 INTERNATIONAL FUEL GAS CODE" CopyngbtOO,.o17 ICC ALL RIGHTS RESERVED A—LDd by HDO,, Van Dme(Rvdme pooch od om).(Qty of PnmdNmod)Odo,N=b,,x1o08170S601 JM 15, xm.o oc 51 AM (PET) Mt,b,mt to Lie Ag,,vo aRt, ICC No fwN¢[TAodomo,,m AtO, goodomo- by anytlt Party o, Axmboem a Romsl Mglo—ody oTyncg and Nyodwg T,oIRb¢d ANY VNAVTHO RIVER RBPLA VCIION OR DISIRIBITTO N IS A VIOLATION OF THE FEDERAL COPYRIGHT ACT AND THE LICENSE AGREEMENT. AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER Adoption The International Code Council maintains a copyright in all of its codes and standards. Maintaining copyright allows the ICC to fund its mission through sales of books, in both print and electronic for- mats. The ICC welcomes adoption of its codes by jurisdictions that recognize and acknowledge the ICC's copyright in the code, and further acknowledge the substantial shared value of the public/pri- vate partnership for code development between jurisdictions and the ICC. The ICC also recognizes the need for jurisdictions to make laws available to the public. All I -Codes and I -Standards, along with the laws of many jurisdictions, are available for free in a nondownloadable form on the ICC's website. Jurisdictions should contact the ICC at adop- tions@iccsafe.org to learn how to adopt and distribute laws based on the International Fuel Gas Code in a manner that provides necessary access, while maintaining the ICC's copyright. To facilitate adoption, several sections of this code contain blanks for fill-in information that needs to be supplied by the adopting jurisdiction as part of the adoption legislation. For this code, please see: Section 101.1. Insert: [NAME OF JURISDICTION] Section 106.6.2. Insert: [APPROPRIATE SCHEDULE] Section 106.6.3. Insert: [PERCENTAGES IN TWO LOCATIONS] Section 108.4. Insert: [SPECIFY OFFENSE] [AMOUNT] [NUMBER OF DAYS] Section 108.5. Insert: [AMOUNTS IN TWO LOCATIONS] 2018 INTERNATIONAL FUEL GAS CODE" vii I " ' (ATFIghtOo2.017 ICC ALL RIGHTS RESERVED Awned by H®Ih¢ Van DmA(Rvdme Oo,dA od om),(Qty of FRmdNmod)O[do,N=b,,*1008170S601 JM 15. ZMO oc 51 AM (PET) Mt,b,mt to ( LEA Ag,, ^®'^Rt, ICC No fwN¢[TAodomoo.m AtO, goodomo- by any Ot Party o, AAmboem a Rowsd Mglo—ody oTyncg and Nyodwg T,oIRb¢Ad ANY VNAVTHO RIVER REICLA VCTION OR DISIRIBITTO N IS A VIOLATION OF THE FEDERAL COPYRIGHT ACT AND THE LICENSE AGREEMENT, AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER viii 2018 INTERNATIONAL FUEL GAS CODER ' CopynghtOo2.017 ICC ALL RIGHTS RESERVED A—LDdby H®Ih¢Van Cm,(Rvdme Oo,d—od om),(Qty of FRmdNmod)O[d6N=b6*1008170S601 JM 15. ZMO oc 51 AM(PET)p,,mmt to S I ( " RR I,—Ag,—^ '^M, ICC Nootths,Aodomo,,oALhsodomo-by any Ot Party o[Axmboemd,Oo[vsd Mglo— odyWpyaog and,yodwg GMIRISed ANY VNAVTHO OLDER REPROD VCIION OR D ISIRIEVTION IS VIOLATION OP THE FEDERAL COPYRIGHT 11 AND THE LICENSE A G RE EM ENT. AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER EFFECTIVE USE OF THE INTERNATIONAL FUEL GAS CODE The International Fuel Gas Code (IFGC) is a model code that regulates the design and installation of fuel gas distribution piping and systems, appliances, appliance venting systems, combustion air pro- visions, gaseous hydrogen systems and motor vehicle gaseous -fuel -dispensing stations. The defini- tion of fuel gas includes natural, liquefied petroleum and manufactured gases and mixtures of these gases. The purpose of the code is to establish the minimum acceptable level of safety and to protect life and property from the potential dangers associated with the storage, distribution and usage of fuel gases and the byproducts of combustion of such fuels. The code also protects the personnel that install, maintain, service and replace the systems and appliances addressed bythis code. With the exception of Section 401.1.1, the IFGC does not address utility -owned piping and equip- ment (i.e., anything upstream of the point of delivery). See the definition of "Point of delivery" and Section 501.8 for other code coverage exemptions. The IFGC is primarily a specification -oriented (prescriptive) code with some performance -ori- ented text. For example, Section 503.3.1 is a performance statement, but Chapter 5 contains pre- scriptive requirements that will cause Section 503.3.1 to be satisfied. The IFGC applies to all occupancies including one- and two-family dwellings and townhouses. The IRC is referenced for coverage of one- and two-family dwellings and townhouses; however, in effect, the IFGC provisions are still applicable because the fuel gas chapter in the IRC (Chapter 24) is composed entirely of text extracted from the IFGC. Therefore, whether using the IFGC or the IRC, the fuel gas provisions will be identical. The IFGC does not apply to piping systems that operate at pressures in excess of 125 psig for natural gas and 20 psig for LP -gas (note exception in Section 402.7). The general Section 105.2 and the specific Sections 304.8, 402.3, 503.5.5 and 503.6.10 allow combustion air provisions, pipe sizing and chimney and vent sizing to be performed by approved engineering methods as alternatives to the prescriptive methods in the code. Arrangement and Format of the 2018 IFGC The format of the IFGC allows each chapter to be devoted to a particular subject, with the exception of Chapter 3, which contains general subject matters that are not extensive enough to warrant their own independent chapter. Chapter 1 Scope and Administration. Chapter 1 establishes the limits of applicability of the code and describes how the code is to be applied and enforced. A fuel gas code, like any other code, is intended to be adopted as a legally enforceable document, and it cannot be effective without adequate provisions for its administration and enforcement. The provisions of Chapter 1 establish the authority and duties of the code official appointed by the authority having jurisdiction and also establish the rights and privileges of the design professional, contractor and property owner. Chapter 2 Definitions. Chapter 2 is the repository of the definitions of terms used in the body of the code. Codes are technical documents and every word, term and punctuation mark can impact the meaning of the code text and the intended results. The code often uses terms that have a unique meaning in the code and the code meaning can differ substantially from the ordinarily understood meaning of the term as used outside of the code. The terms defined in Chapter 2 are deemed to be of prime importance in establishing the mean- ing and intent of the code text that uses the terms. The user of the code should be familiar with and consult this chapter because the definitions are essential to the correct interpretation of the code and because the user may not be aware that a term is defined. Chapter 3 General Regulations. Chapter 3 contains broadly applicable requirements related to appliance location and installation, appliance and systems access, protection of structural elements 2018 INTERNATIONAL FUEL GAS CODE" ix I i l i CopynghtOo2.017 ICC ALL RIGHTS RESERVED A—LDd by H®Ih¢ Van DmA(Rv dme Oo,dA od om),(Qty of FRmdNmod)O[do,N=b,,*1008170S601 JM 15. ZMO oc 51 AM (PET) puuvant to ( LEA Ag,,vo aRt, ICC No fwN¢[TAodomoo.m AtO, goodomo- by any Ot Party o, AAmboem a Romsd Mglo—ody oTyncg and Nyodwg T,oIRb¢Ad ANY VNAVTHO RIVER REICLA VCTION OR DISIRIBITTO N IS A VIOLATION OF THE FEDERAL COPYRIGHT ACT AND THE LICENSE AGREEMENT. AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER and clearances to combustibles, among others. This chapter also covers combustion air provisions for gas -fired appliances. Chapter 4 Gas Piping Installations. Chapter 4 covers the allowable materials for gas piping systems and the sizing and installation of such systems. It also covers pressure regulators, appliance connections and overpressure protection devices. Gas piping systems are sized to supply the maxi- mum demand while maintaining the supply pressure necessary for safe operation of the appliances served. Chapter 5 Chimneys and Vents. Chapter 5 regulates the design, construction, installation, maintenance, repair and approval of chimneys, vents, venting systems and their connections to gas - fired appliances. Properly designed chimneys, vents and venting systems are necessary to conduct to the outdoors the flue gases produced by the combustion of fuels in appliances. The provisions of this chapter are intended to minimize the hazards associated with high temperatures and poten- tially toxic and corrosive combustion gases. This chapter addresses all of the factory -built and site - built chimneys, vents and venting systems used to vent all types and categories of appliances. It also addresses direct -vent appliances, integral vent appliances, side -wall mechanically vented appli- ances and exhaust hoods that convey the combustion byproducts from cooking and other process appliances. Chapter 6 Specific Appliances. Chapter 6 addresses specific appliances that the code intends to regulate. Each main section applies to a unique type of gas -fired appliance and specifies the prod- uct standards to which the appliance must be listed. The general requirements found in the previ- ous Chapters 1 through 5 also apply and the sections in Chapter 6 add the special requirements that are specific to each type of appliance. Chapter 7 Gaseous Hydrogen Systems. Chapter 7 is specific to gaseous hydrogen generation, storage, distribution and utilization systems, appliances and equipment. Note that hydrogen is not within the definition of "Fuel gas," but it is, nonetheless, commonly used as a fuel for fuel -cell power generation and fuel -cell powered motor vehicles. The scope of Chapter 7 is not limited to any particular use of hydrogen (see Sections 633 and 635). Hydrogen systems have unique potential hazards because of the specific gravity of the gas, its chemical effect on materials and the fact that it is not odorized. Chapter 8 Referenced Standards. Chapter 8 lists all of the product and installation standards and codes that are referenced throughout Chapters 1 through 7. As stated in Section 102.8, these standards and codes become an enforceable part of the code (to the prescribed extent of the refer- ence) as if printed in the body of the code. Chapter 8 provides the full title and edition year of the standards and codes in addition to the address of the promulgators and the section numbers in which the standards and codes are referenced. Appendix A Sizing and Capacities of Gas Piping. This appendix is informative and not part of the code. It provides design guidance, useful facts and data and multiple examples of how to apply the sizing tables and sizing methodologies of Chapter 4. Appendix B Sizing of Venting Systems Serving Appliances Equipped with Draft Hoods, Category I Appliances and Appliances Listed for Use with Type B Vents. This appendix is informative and not part of the code. It contains multiple examples of how to apply the vent and chimney tables and methodologies of Chapter 5. Appendix C Exit Terminals of Mechanical Draft and Direct -vent Venting Systems. This appendix is informative and not part of the code. It consists of a figure and notes that visually depict code requirements from Chapter 5 for vent terminals with respect to the openings found in building exterior walls. Appendix D Recommended Procedure for Safety Inspection of an Existing Appliance Installation. This appendix is informative and not part of the code. It provides recommended pro- cedures fortesting and inspecting an appliance installation to determine if the installation is operat- ing safely and if the appliance is in a safe condition. 2018 INTERNATIONAL FUEL GAS CODER CopyngbtOO?.o17 ICC ALL RIGHTS RESERVED AwLDd by HDO,, Van Dme(Rvdme pooch od om).(Qty of PnmdNmod)Odo,N=b,,x1o08170S601 JM 15, xm.o oc 51 AM (PET) Mt,b,mt to Lie Ag,,vo aRt, ICC No fwN¢[TAodomoo.m AtO, goodomo- by anytlt Party o, Axmboem a Romsl Mglo moody oTyncg and Nyodwg T,oIRb¢d ANY VNAVTHO RIVER REICLA VCIION OR DISIRIBITTO N IS A VIOLATION OF THE FEDERAL COPYRIGHT ACT AND THE LICENSE AGREEMENT. AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER TABLE OF CONTENTS CHAPTER 1 SCOPE AND ADMINISTRATION .... 1 PART I —SCOPE AND APPLICATION .............. I Section 101 General (IFGC) 1 102 Applicability (IFGC) 2 PART 2 ADMINISTRATIONAND ENFORCEMENT ................... 3 103 Department of Inspection (IFGC) 3 104 Duties and Powers of the Code Official (IFGC) 3 105 Approval (IFGC) 3 106 Permits (IFGC) 4 107 Inspections and Testing (IFGC) 6 108 Violations (IFGC) 7 109 Means of Appeal (IFGC) 8 110 Temporary Equipment, Systems and Uses (IFGC) 9 CHAPTER 2 DEFINITIONS .................... 11 Section 201 General (IFGC) 11 202 General Definitions (IFGC) 11 CHAPTER 3 GENERAL REGULATIONS ........ 19 Section 301 General (IFGC) 19 302 Structural Safety (IFGC) 20 303 Appliance Location (IFGC) 20 304 Combustion, Ventilation and Dilution Air (IFGS) 21 305 Installation (IFGC) 24 306 Access and Service Space (IFGC) 25 307 Condensate Disposal (IFGC) 27 308 Clearance Reduction (IFGS) 27 309 Electrical (IFGC) 28 310 Electrical Bonding (IFGS) 28 CHAPTER 4 GAS PIPING INSTALLATIONS ..... 31 Section 401 General (IFGC) 31 402 Pipe Sizing (IFGS) 31 403 Piping Materials (IFGS) 69 404 Piping System Installation (IFGC) 71 405 Piping Bends and Changes in Direction (IFGS) 73 406 Inspection, Testing and Purging (IFGS) 74 407 Piping Support (IFGC) 76 408 Drips and Sloped Piping (IFGC) 76 409 Shutoff Valves (IFGC) 77 410 Flow Controls (IFGC) 77 411 Appliance and Manufactured Home Connections (IFGC) 78 412 Liquefied Petroleum Gas Motor Vehicle Fuel -dispensing Facilities (IFGC) 79 413 Compressed Natural Gas Motor Vehicle Fuel -dispensing Facilities (IFGC) 81 414 Supplemental and Standby Gas Supply (IFGC) 82 415 Piping Support Intervals (IFGS) 82 416 Overpressure Protection Devices (IFGS) 83 CHAPTER 5 CHIMNEYS AND VENTS .......... 85 Section 501 General (IFGC) 85 502 Vents (IFGC) 86 503 Venting of Appliances (IFGS) 87 504 Sizing of Category I Appliance Venting Systems (IFGS) 96 505 Direct -vent, Integral Vent, Mechanical Vent and Ventilation/Exhaust Hood Venting (IFGC) 100 506 Factory -built Clumneys (IFGC) 101 CHAPTER 6 SPECIFIC APPLIANCES.......... 123 Section 601 General (IFGC) 123 602 Decorative Appliances for Installation in Fireplaces (IFGC) 123 603 Log Lighters (IFGC) 123 604 Vented Gas Fireplaces (Decorative Appliances) (IFGC) 123 605 Vented Gas Fireplace Heaters (IFGC) 123 606 Incinerators and Crematories (IFGC) 123 607 Commercial -industrial Incinerators (IFGC) 123 2018 INTERNAT10NAL FUEL GAS CODE" A I " ' CITFIghtOo 2017 ICC ALL RIGHTS RESERVED A—LDdby HDOn Von Dme(Rvdb,pOondNood mm),(Dty of FRmd od)O[d6N=b,,*10081vwS6onJan 15. ZMO oc 51 AM(PET)pucrvont to ( Lie Affieen®t'At, ICC No(wN¢[TAod,Aoo. noAtth¢Pepe od,Aon, by any Ot Party o, Axmbotmd Ro[vsd 9oglo on ody no, and Mwodwg p,ARISAd ANY VNAVTHO RIVER REPROD VCTION OR DISIRIBITTON IS VIOLATION OF THE FEDERAL COPYRIGHT ACT AND THE LICENSE AGREEMENT. AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER TABLE OF CONTENTS 608 Vented Wall Furnaces (IFGC) 123 707 Operation and Maintenance of Gaseous 609 Floor Furnaces (IFGC) 124 Hydrogen Systems (IFGC) 136 610 Duct Furnaces (IFGC) 124 708 Design of Liquefied Hydrogen Systems 611 Nonrecirculating Direct -fired Industrial Associated with Hydrogen Vaporization Air Heaters (IFGC) 124 Operations (IFGC) 136 612 Recirculating Direct -fired Industrial Air CHAPTER 8 REFERENCED STANDARDS...... 137 Heaters (IFGC) 125 613 Clothes Dryers (IFGC) 125 APPENDIX A SIZING AND CAPACITIES OF 614 Clothes Dryer Exhaust (IFGC) 125 GAS PIPING (IFGS) ............. 143 615 Sauna Heaters (IFGC) 127 616 Engine and Gas Turbine -powered APPENDIX B SIZING OF VENTING SYSTEMS Equipment (IFGC) 128 SERVING APPLIANCES 617 Pool and Spa Heaters (IFGC) 128 EQUIPPED WITH DRAFT 618 Forced -air Warm -air Furnaces (IFGC) 128 HOODS, CATEGORY I APPLIANCES AND 619 Conversion Burners (IFGC) 129 APPLIANCES LISTED 620 Unit Heaters (IFGC) 129 FOR USE WITH TYPE B 621 Unvented Room Heaters (IFGC) 129 VENTS (IFGS) .................. 153 622 Vented Room Heaters (IFGC) 129 623 Cooking Appliances (IFGC) 129 APPENDIX C EXIT TERMINALS OF MECHANICAL DRAFT AND 624 Water Heaters (IFGC) 130 DIRECT -VENT VENTING 625 Refrigerators (IFGC) 130 SYSTEMS (IFGS)................ 163 626 Gas -fired Toilets (IFGC) 130 627 Air-conditioning Appliances (IFGC) 130 APPENDIX D RECOMMENDED PROCEDURE 628 Illummating Appliances (IFGC) 131 FOR SAFETY INSPECTION OF AN EXISTING APPLIANCE 629 Small Ceramic Kilns (IFGC) 131 INSTALLATION (IFGS).......... 165 630 Infrared Radiant Heaters (IFGC) 132 631 Boilers (IFGC) 132 INDEX ....................................... 171 632 Equipment Installed in Existing Unlisted Boilers (IFGC) 132 633 Stationary Fuel -cell Power Systems (IFGC) 132 634 Chimney Damper Opening Area (IFGS) 132 635 Gaseous Hydrogen Systems (IFGC) 132 636 Outdoor Decorative Appliances (IFGC) 132 CHAPTER GASEOUS HYDROGEN SYSTEMS ....................... 133 Section 701 General (IFGC) 133 702 General Definitions (IFGC) 133 703 General Requirements (IFGC) 133 704 Piping, Use and Handling (IFGC) 134 705 Testing of Hydrogen Piping Systems (IFGC) 135 706 Location of Gaseous Hydrogen Systems (IFGC) 136 xii 2018 INTERNATIONAL FUEL GAS CODE" " ' CopynghtOo2.017 ICC ALL RIGHTS RESERVED Awned by H®Ih¢ Van Dme(Rvdme Oo,dv od om),(Dby of FRmdNmod)O[do,N=b,,*100817— 01 JM 15, fMO oc 51 AM(GET) LA,V,Mt to S I ( 01,i ,Agffi,vo ,AOICC Nofth,,,odoSmo,,,o�t,,, od,S,00zbyany ,dputyo,Axmboe®am600ssd ANYVNAVTHORIVED RBPROD VCIION ORDISI—IION LEA VIOLATION OF THE FEDERAL COPYRIGHT ACT AND THE LICENSEAGREEMENT.AND SUBJECT TO CIVIL AND CRIMINAL PENALTIESTHERBUNDER CHAPTER 1 SCOPE AND ADMINISTRATION User note: About this chapter., Chapter 1 establishes the limits of applicability of the code and describes how the code is to be applied and enforced Chapter 1 is in two parts Part 1—Scope and Application and Part 2—Administration and Enforcement Section 101 identifies what buildings, systems, appliances and equipment fall under its purview and references other International Codes as applicable Standards and codes are scoped to the extent referenced The code is intended to be adopted as a legally enforceable document and it cannot be effective without adequate provisions for its adminis- tration and enforcement The provisions of Chapter 1 establish the authority and duties of the code official appointed by the authority having jurisdiction and also establish the rights and privileges of the design professional, contractor and property owner J_1 A fi 01-19io] J =F_10 1 11117-A1» 4 Wild 01010 SECTION 101 (IFGC) GENERAL [A] 101.1 Title. These regulations shall be known as the Fuel Gas Code of [NAME OF JURISDICTION], hereinafter referred to as "this code " [A] 101.2 Scope. Tlus code shall apply to the installation of fuel -gas piping systems, fuel gas appliances, gaseous hydro- gen systems and related accessories in accordance with Sec- tions 101 2 1 through 101 2 5 Exception: Detached one- and two-family dwellings and multiple single-family dwellings (townhouses) not more than three stories high with separate means of egress and their accessory structures shall comply with the Interna- tional Residential Code [A] 101.2.1 Gaseous hydrogen systems. Gaseous hydro- gen systems shall be regulated by Chapter 7 [A] 101.2.2 Piping systems. These regulations cover pip- ing systems for natural gas with an operating pressure of 125 pounds per square inch gauge (psig) (862 kPa gauge) or less, and for LP -gas with an operating pressure of 20 psig (140 kPa gauge) or less, except as provided to Section 402 7 Coverage shall extend from the point of delivery to the outlet of the appliance shutoff valves Piping system requirements shall include design, materials, components, fabrication, assembly, installation, testing, inspection, operation and maintenance [A] 101.2.3 Gas appliances. Requirements for gas appli- ances and related accessories shall include installation, combustion and ventilation air and venting and connec- tions to piping systems [A] 101.2.4 Systems, appliances and equipment outside the scope. This code shall not apply to the following 1 Portable LP -gas appliances and equipment of all types that is not connected to a fixed fuel piping system 2 Installation of farm appliances and equipment such as brooders, dehydrators, dryers and irrigation equipment 3 Raw material (feedstock) applications except for piping to special atmosphere generators 4 Oxygen -fuel gas cutting and welding systems 5 Industrial gas applications using gases such as acetylene and acetylenic compounds, hydrogen, ammonia, carbon monoxide, oxygen and nitrogen 6 Petroleum refineries, pipeline compressor or pumping stations, loading terminals, compounding plants, refinery tank farms and natural gas process- ing plants 7 Integrated chemical plants or portions of such plants where flammable or combustible liquids or gases are produced by, or used in, chemical reac- tions 8 LP -gas installations at utility gas plants 9 Liquefied natural gas (LNG) installations 10 Fuel gas piping to power and atomic energy plants 11 Proprietary items of equipment, apparatus or instruments such as gas -generating sets, compres- sors and calorimeters 12 LP -gas equipment for vaporization, gas mixing and gas manufacturing 13 Temporary LP -gas piping for buildings under con- struction or renovation that is not to become part of the permanent piping system 14 Installation of LP -gas systems for railroad switch heating 15 Installation of hydrogen gas, LP -gas and com- pressed natural gas (CNG) systems on vehicles 16 Except as provided to Section 401 1 1, gas piping, meters, gas pressure regulators and other appurte- nances used by the serving gas supplier to the dis- tribution of gas, other than undiluted LP -gas 17 Butldmg design and construction, except as speci- fied herein 18 Piping systems for mixtures of gas and air within the flammable range with an operating pressure greater than 10 psig (69 kPa gauge) 19 Portable fuel cell appliances that are neither con- nected to a fixed piping system nor interconnected to a power grid 2018 INTERNAT10NAL FUEL GAS CODE" 1 I I [ I CopyrightOo2.017 ICC ALL RIGHTS RESERVED A—LDd by H®Ih¢ Van Dme(Rv dme pooch od om),(Qty of FRmdNmod)O[do,N=b6xlo08170S601JM 15, ZMO oc 51 AM (PET) rt,b,mt to ( Lie Ag,, ^®'^Rt, ICC No fwN¢[TAodomo,,m AtO, goodomo- by any Ot Party o, Axmboemd,Oo[vsd Mglo—ody oTyncg and Nyodwg L,oIRbAd ANY VNAVTHO RIVER REICLA VCTION OR DISIRIBITTO N IS A VIOLATION OF THE FEDERAL COPYRIGHT ACT AND THE LICENSE AGREEMENT. AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER SCOPE AND ADMINISTRATION [A] 101.2.5 Other fuels. The requirements for the design, installation, maintenance, alteration and inspection of mechanical systems operating with fuels other than fuel gas shall be regulated by the International Mechanical Code [A] 101.3 Appendices. Provisions in the appendices shall not apply unless specifically adopted [A] 101.4 Intent. The purpose of this code is to establish minimum standards to provide a reasonable level of safety, health, property protection and public welfare by regulating and controlling the design, construction, installation, quality of materials, location, operation and maintenance or use of fuel gas systems [A] 101.5 Severability. If a section, subsection, sentence, clause or phrase of this code is, for any reason, held to be unconstitutional, such decision shall not affect the validity of the remaining portions of this code SECTION 102 (IFGC) APPLICABILITY [A] 102.1 General. Where there is a conflict between a gen- eral requirement and a specific requirement, the specific requirement shall govern Where, in a specific case, different sections of this code specify different materials, methods of construction or other requirements, the most restrictive shall govern [A] 102.2 Existing installations. Except as otherwise pro- vided for in this chapter, a provision in this code shall not require the removal, alteration or abandonment of, nor pre- vent the continued utilization and maintenance of, existing installations lawfully in existence at the time of the adoption of this code [A] 102.2.1 Existing buildings. Additions, alterations, renovations or repairs related to building or structural issues shall be regulated by the International Existing Builckng Code [A] 102.3 Maintenance. Installations, both existing and new, and parts thereof shall be maintained in proper operating con- dition in accordance with the original design and in a safe condition Devices or safeguards that are required by this code shall be maintained in compliance with the edition of the code under which they were installed The owner or the owner's authorized agent shall be responsible for mainte- nance of installations To determine compliance with this provision, the code official shall have the authority to require an installation to be reinspected [A] 102.4 Additions, alterations or repairs. Additions, alterations, renovations or repairs to installations shall con- form to that required for new installations without requiring the existing installation to comply with all of the require- ments of this code Additions, alterations or repairs shall not cause an existing installation to become unsafe, hazardous or overloaded Minor additions, alterations, renovations and repairs to existing installations shall meet the provisions for new con- struction, unless such work is done in the same manner and arrangement as was in the existing system, is not hazardous and is approved [A] 102.5 Change in occupancy. It shall be unlawful to make a change in the occupancy of a structure that will sub- ject the structure to the special provisions of this code appli- cable to the new occupancy without approval The code official shall certify that such structure meets the intent of the provisions of law governing building construction for the proposed new occupancy and that such change of occupancy does not result in any hazard to the public health, safety or welfare [A] 102.6 Historic buildings. The provisions of this code relating to the construction, alteration, repair, enlargement, restoration, relocation or moving of buildings or structures shall not be mandatory for existing buildings or structures identified and classified by the state or local jurisdiction as historic buildings where such buildings or structures are judged by the code official to be safe and in the public inter- est of health, safety and welfare regarding any proposed con- struction, alteration, repair, enlargement, restoration, relocation or moving of buildings [A] 102.7 Moved buildings. Except as determmed by Sec- tion 102 2, installations that are a part of buildings or struc- tures moved into or within the jurisdiction shall comply with the provisions of this code for new installations [A] 102.8 Referenced codes and standards. The codes and standards referenced in this code shall be those that are listed in Chapter 8 and such codes and standards shall be consid- ered to be part of the requirements of this code to the pre- scribed extent of each such reference and as further regulated in Sections 102 8 1 and 102 8 2 Exception: Where enforcement of a code provision would violate the conditions of the listing of the equipment or appliance, the conditions of the listing and the manufac- turer's installation instructions shall apply [A] 102.8.1 Conflicts. Where conflicts occur between the provisions of this code and the referenced standards, the provisions of this code shall apply [A] 102.8.2 Provisions in referenced codes and stan- dards. Where the extent of the reference to a referenced code or standard includes subject matter that is within the scope of this code, the provisions of this code, as applica- ble, shall take precedence over the provisions in the refer- enced code or standard [A] 102.9 Requirements not covered by code. Require- ments necessary for the strength, stability or proper operation of an existing or proposed installation, or for the public safety, health and general welfare, not specifically covered by this code, shall be determined by the code official [A] 102.10 Other laws. The provisions of this code shall not be deemed to nullify any provisions of local, state or federal law [A] 102.11 Application of references. Reference to chapter section numbers, or to provisions not specifically identified by number, shall be construed to refer to such chapter, section or provision of this code 2018 INTERNATIONAL FUEL GAS CODE" CoLFIEILOO?.o17 ICC ALL RIGHTS RESERVED A—LDd by HDO,, Van Dme(Rvdme pooch od om).(Dty of PnmdNmod)Odo,N=b,,x1o08170S601 JM 15, xm.o oc 51 AM (PET) Mt,b,mt to Lie Ag,, ^®'^Rt, ICC No fwN¢[TAodomoo.m AtO, goodomo- by anytlt Party o, Axmboemd,Oo[vsd Mglo—ody oTyncg and Nyodwg L,oIRb¢d ANY VNAVTHO RIVER REICLA VCIION OR DISIRIBITTO N IS A VIOLATION OF THE FEDERAL COPYRIGHT ACT AND THE LICENSE AGREEMENT. AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER SCOPE AND ADMINISTRATION PART 2—ADMINISTRATION AND ENFORCEMENT SECTION 103 (IFGC) DEPARTMENT OF INSPECTION [A] 103.1 General. The Department of Inspection is hereby created and the executive official in charge thereof shall be known as the code official [A] 103.2 Appointment. The code official shall be appointed by the chief appointing authority of the jurisdiction [A] 103.3 Deputies. In accordance with the prescribed proce- dures of this jurisdiction and with the concurrence of the appointing authority, the code official shall have the authority to appoint a deputy code official, other related technical offi- cers, inspectors and other employees Such employees shall have powers as delegated by the code official [A] 103.4 Liability. The code official, member of the board of appeals or employee charged with the enforcement of this code, while acting for the jurisdiction in good faith and with- out malice in the discharge of the duties required by this code or other pertinent law or ordinance, shall not thereby be ren- dered civilly or criminally liable personally, and is hereby relieved from all personal liability for any damage accruing to persons or property as a result of an act or by reason of an act or omission in the discharge of official duties [A] 103.4.1 Legal defense. Any suit or criminal complaint instituted against any officer or employee because of an act performed by that officer or employee in the lawful discharge of duties and under the provisions of this code shall be defended by the legal representatives of the juris- diction until the final termination of the proceedings The code official or any subordinate shall not be liable for costs in an action, suit or proceeding that is instituted in pursuance of the provisions of this code SECTION 104 (IFGC) DUTIES AND POWERS OF THE CODE OFFICIAL [A] 104.1 General. The code official is hereby authorized and directed to enforce the provisions of this code The code official shall have the authority to render interpretations of this code and to adopt policies and procedures in order to clarify the application of its provisions Such interpretations, policies and procedures shall be in compliance with the intent and purpose of this code Such policies and procedures shall not have the effect of waiving requirements specifically pro- vided in this code [A] 104.2 Applications and permits. The code official shall receive applications, review construction documents and issue permits for installations and alterations of fuel gas sys- tems, inspect the premises for which such permits have been issued and enforce compliance with the provisions of this code [A] 104.3 Inspections. The code official shall make all of the required inspections, or shall accept reports of inspection by approved agencies or individuals Reports of such inspections shall be in writing and shall be certified by a responsible offi- cer of such approved agency or by the responsible individual The code official is authorized to engage such expert opinion as deemed necessary to report on unusual technical issues that arise, subject to the approval of the appointing authority [A] 104.4 Right of entry. Where it is necessary to make an inspection to enforce the provisions of this code, or where the code official has reasonable cause to believe that there exists in a building or on any premises any conditions or violations of this code that make the building or premises unsafe, dan- gerous or hazardous, the code official shall have the authority to enter the building or premises at all reasonable times to inspect or to perform the duties imposed upon the code offi- cial by this code If such building or premises is occupied, the code official shall present credentials to the occupant and request entry If such bwldmg or premises is unoccupied, the code official shall first make a reasonable effort to locate the owner, the owner's authorized agent or other person having charge or control of the building or premises and request entry If entry is refused, the code official has recourse to every remedy provided by law to secure entry Where the code official has first obtained a proper inspec- tion warrant or other remedy provided by law to secure entry, an owner, the owner's authorized agent, occupant or person having charge, care or control of the building or premises shall not fall or neglect, after proper request is made as herein provided, to promptly permit entry therein by the code offi- cial for the purpose of inspection and examination pursuant to this code [A] 104.5 Identification. The code official shall carry proper identification when inspecting structures or premises in the performance of duties under this code [A] 104.6 Notices and orders. The code official shall issue all necessary notices or orders to ensure compliance with this code [A] 104.7 Department records. The code official shall keep official records of applications received, permits and certifi- cates issued, fees collected, reports of inspections and notices and orders issued Such records shall be retained in the offi- cial records for the period required for the retention of public records SECTION 105 (IFGC) APPROVAL [A] 105.1 Modifications. Where there are practical difficul- ties involved in carrying out the provisions of this code, the code official shall have the authority to grant modifications for individual cases, upon application of the owner or owner's authorized agent, provided that the code official shall first find that special individual reason makes the strict letter of this code impractical and that such modification is in com- pliance with the intent and purpose of this code and does not lessen health, life and fire safety requirements The details of action granting modifications shall be recorded and entered in the files of the Department of Inspection [A] 105.2 Alternative materials, design and methods of construction and equipment. The provisions of this code are not intended to prevent the installation of any material or to prohibit any design or method of construction not specifi- 2018 INTERNATIONAL FUEL GAS CODE" 3 I I1 I CITFIghtOo2.017 ICC ALL RIGHTS RESERVED A—LDd by H®Ih¢ Van DmA(Rvdme Oo,dA od om),(Dty of FRmdNmod)O[do,N=b6xlo08170S601JM 15. ZMO oc 51 AM (PET) Mt,b,mt to ( 1, S, Ag,, ^®'^Rt, ICC No fwN¢[TAodomoo.m AtO, goodomo- by any Ot Party o, AAmboemd,Oo[vsd Mglo—ody oTyncg and Nyodwg L,oIRb¢Ad ANY VNAVTHO RIVER REICLA VCTION OR DISIRIBITTO N IS A VIOLATION OF THE FEDERAL COPYRIGHT ACT AND THE LICENSE AGREEMENT. AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER SCOPE AND ADMINISTRATION cally prescribed by this code, provided that any such altema- twe has been approved An alternative material, design or method of construction shall be approved where the code official finds that the proposed design is satisfactory and complies with the intent of the provisions of this code, and that the material, method or work offered is, for the purpose intended, not less than the equivalent of that prescribed in this code in quality, strength, effectiveness, fire resistance, dura- bility and safety Where the alternative material, design or method of construction is not approved, the code official shall respond in writing, stating the reasons why the alternative was not approved [A] 105.2.1 Research reports. Supporting data, where necessary to assist in the approval of materials or assem- blies not specifically provided for in this code, shall con- sist of valid research reports from approved sources [A] 105.3 Required testing. Where there is insufficient evi- dence of compliance with the provisions of this code or evi- dence that a material or method does not conform to the requirements of this code, or in order to substantiate claims for alternative materials or methods, the code official shall have the authority to require tests as evidence of compliance to be made at no expense to the jurisdiction [A] 105.3.1 Test methods. Test methods shall be as speci- fied in this code or by other recognized test standards In the absence of recognized and accepted test methods, the code official shall approve the testing procedures [A] 105.3.2 Testing agency. Tests shall be performed by an approved agency [A] 105.3.3 Test reports. Reports of tests shall be retained by the code official for the period required for retention of public records [A] 105.4 Used material, appliances and equipment. The use of used materials that meet the requirements of this code for new materials is permitted Used appliances, equipment and devices shall not be reused unless such elements have been reconditioned, tested and placed in good and proper working condition, and approved by the code official [A] 105.5 Approved materials and equipment. Materials, equipment and devices approved by the code official shall be constructed and installed in accordance with such approval SECTION 106 (IFGC) PERMITS [A] 106.1 Where required. An owner, owner's authorized agent or contractor who desires to erect, install, enlarge, alter, repair, remove, convert or replace an installation regulated by this code, or to cause such work to be performed, shall first make application to the code official and obtain the required permit for the work Exception: Where appliance and equipment replacements and repairs are required to be performed in an emergency situation, the permit application shall be submitted within the next working business day of the Department of Inspection [A] 106.1.1 Annual permit. Instead of an individual con- struction permit for each alteration to an already approved system or equipment installation, the code official is authorized to issue an annual permit upon application therefor to any person, firm or corporation regularly employing one or more qualified tradespersons in the building, structure or on the premises owned or operated by the applicant for the permit [A] 106.1.2 Annual permit records. The person to whom an annual permit is issued shall keep a detailed record of alterations made under such annual permit The code offi- cial shall have access to such records at all times or such records shall be filed with the code official as designated [A] 106.2 Permits not required. Permits shall not be required for the following 1 Portable heating appliances 2 Replacement of any minor component of an appliance or equipment that does not alter approval of such appli- ance or equipment or make such appliance or equip- ment unsafe Exemption from the permit requirements of this code shall not be deemed to grant authorization for work to be done in violation of the provisions of this code or of other laws or ordinances of this jurisdiction [A] 106.3 Application for permit. Each application for a permit, with the required fee, shall be filed with the code offi- cial on a form furnished for that purpose and shall contain a general description of the proposed work and its location The application shall be signed by the owner or an owner's autho- rized agent The permit application shall indicate the pro- posed occupancy of all parts of the bwldmg and of that portion of the site or lot, if any, not covered by the building or structure and shall contain such other information required by the code official [A] 106.3.1 Construction documents. Construction doc- uments, engineering calculations, diagrams and other data shall be submitted in two or more sets with each applica- tion for a permit The code official shall require construc- tion documents, computations and specifications to be prepared and designed by a registered design professional where required by state law Construction documents shall be drawn to scale and shall be of sufficient clarity to mdi- cate the location, nature and extent of the work proposed and show in detail that the work conforms to the provi- sions of this code Construction documents for buildings more than two stories in height shall indicate where pene- trations will be made for installations and shall indicate the materials and methods for maintaining required struc- tural safety, fire -resistance rating and f reblocking Exception: The code official shall have the authority to waive the submission of construction documents, cal- culations or other data if the nature of the work applied for is such that reviewing of construction documents is not necessary to determine compliance with this code [A] 106.3.2 Time limitation of application. An applica- tion for a permit for any proposed work shall be deemed to have been abandoned 180 days after the date of filing, unless such application has been pursued in good faith or a 2018 INTERNATIONAL FUEL GAS CODE" CoLFIEILOO?.o17 ICC ALL RIGHTS RESERVED A—LDd by HDO,, Van Dme(R dme pooch od om).(Dtyof PnmdNmod)Od¢Nomb,,x1o08170S601 JM 15, xm.o oc 51 AM (PET) Mt,b,mt to Lie Ag,, ^®'^Rt, ICC NofwN¢[TAodomoo.m AtO, goodomo- by anytlt Party o, Axmboemd,Oo[vsd Mglo—ody oTyncg and Nyodwg L,oIRb¢d ANY VNAVTHO RIVER REICLA VCIION OR DISIRIBITTO N IS A VIOLATION OF THE FEDERAL COPYRIGHT ACT AND THE LICENSE AGREEMENT. AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER SCOPE AND ADMINISTRATION permit has been issued, except that the code official shall have the authority to grant one or more extensions of tune for additional periods not exceeding 180 days each The extension shall be requested in writing and justifiable cause shall be demonstrated [A] 106.4 Preliminary inspection. Before a permit is issued, the code official is authorized to inspect and evaluate the sys- tems, equipment, buildings, devices, premises and spaces or areas to be used [A] 106.5 Permit issuance. The application, construction documents and other data filed by an applicant for a permit shall be reviewed by the code official If the code official finds that the proposed work conforms to the requirements of this code and all laws and ordinances applicable thereto, and that the fees specified in Section 106 6 have been paid, a per- mit shall be issued to the applicant [A] 106.5.1 Approved construction documents. When the code official issues the permit where construction doc- uments are required, the construction documents shall be endorsed in writing and stamped "APPROVED" Such approved construction documents shall not be changed, modified or altered without authorization from the code official Work shall be done in accordance with the approved construction documents The code official shall have the authority to issue a per- mit for the construction of part of an installation before the construction documents for the entire installation have been submitted or approved, provided adequate informa- tion and detailed statements have been filed complying with all pertinent requirements of this code The holder of such permit shall proceed at his or her own risk without assurance that the permit for the entire installation will be granted [A] 106.5.2 Validity. The issuance of a permit or approval of construction documents shall not be construed to be a permit for, or an approval of, any violation of any of the provisions of this code or of other ordinances of the juris- diction A permtt presuming to give authority to violate or cancel the provisions of this code shall be invalid The issuance of a permit based on construction docu- ments and other data shall not prevent the code official from thereafter requiring the correction of errors in said construction documents and other data or from preventing building operations from being carried on thereunder where in violation of this code or of other ordinances of this jurisdiction [A] 106.5.3 Expiration. Every permit issued by the code official under the provisions of this code shall expire by limitation and become null and void if the work authorized by such permit is not commenced within 180 days from the date of such permtt, or is suspended or abandoned at any time after the work is commenced for a period of 180 days Before such work recommences, a new permit shall be first obtained and the fee therefor shall be one-half the amount required for a new permit for such work, provided that changes have not been and will not be made in the original construction documents for such work, and fur- ther that such suspension or abandonment has not exceeded one year [A] 106.5.4 Extensions. A perm ittee holding an unexpired permit shall have the right to apply for an extension of the time within which he or she will commence work under that permit when work is unable to be commenced within the time required by this section for good and satisfactory reasons The code official shall extend the time for action by the penmittee for a period not exceeding 180 days if there is reasonable cause A permit shall not be extended more than once The fee for an extension shall be one-half the amount required for a new permit for such work [A] 106.5.5 Suspension or revocation of permit. The code official shall have the authority to suspend or revoke a permit issued under the provisions of this code wherever the permit is issued in error or on the basis of incorrect, inaccurate or incomplete information, or in violation of any ordinance or regulation or any of the provisions of this code [A] 106.5.6 Retention of construction documents. One set of approved construction documents shall be retained by the code official for a period of not less than 180 days from date of completion of the permitted work, or as required by state or local laws One set of approved con- struction documents shall be returned to the applicant, and said set shall be kept on the site of the building or work at all tunes during which the work authorized thereby is in progress [A] 106.5.7 Previous approvals. This code shall not require changes in the construction documents, construc- tion or designated occupancy of a structure for which a lawful permit has been heretofore issued or otherwise law- fully authorized, and the construction of wluch has been pursued in good faith within 180 days after the effective date of this code and has not been abandoned [A] 106.5.8 Posting of permit. The permit or a copy shall be kept on the site of the work until the completion of the project [A] 106.6 Fees. A permit shall not be issued until the fees prescribed in Section 106 6 2 have been paid, nor shall an amendment to a permit be released until the additional fee, if any, due to an increase of the installation, has been paid [A] 106.6.1 Work commencing before permit issuance. Any person who commences work on an installation before obtaining the necessary permits shall be subject to 100 percent of the usual permit fee in addition to the required permit fees [A] 106.6.2 Fee schedule. The fees for work shall be as indicated in the following schedule [JURISDICTION TO INSERT APPROPRIATE SCHEDULE] [A] 106.6.3 Fee refunds. The code official shall authorize the refunding of fees as follows 1 The full amount of any fee paid hereunder that was erroneously paid or collected 2 Not more than [SPECIFY PERCENTAGE] percent of the permit fee paid where work has not been done under a permit issued in accordance with this code 3 Not more than [SPECIFY PERCENTAGE] percent of the plan review fee paid where an application for a permit for which a plan review fee has been paid is 2018 INTERNATIONAL FUEL GAS CODE" 5 I [ [ [ CALFIEIL @ 2017 ICC ALL RIGHTS RESERVED A—LDd by H®Ih¢ Van Dme(Rv dme pooch od om),(Dty of FRmdNmod)O[do, Nomb,,*1008170S601 JM 15. ZMO oc 51 AM (PET) t to ( Lie Affiee^® Rt, ICC No fwN¢[TAodomoo.m AtO,Pepeodomo- by any Ot Party o, Axmboemdm6o d Mglo—ody mpyncg and Nyodwg LARISAd ANY VNAVTHO RIVER REICLA VCTION OR DISIRIBITTO N IS A VIOLATION OF THE FEDERAL COPYRIGHT ACT AND THE LICENSE AGREEMENT. AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER SCOPE AND ADMINISTRATION withdrawn or canceled before any plan review effort has been expended The code official shall not authorize the refunding of any fee paid, except upon written application filed by the original perm ittee not later than 180 days after the date of fee payment SECTION 107 (IFGC) INSPECTIONS AND TESTING [A] 107.1 General. The code official is authorized to conduct such inspections as are deemed necessary to determme com- pliance with the provisions of this code Construction or work for which a permit is required shall be subject to inspection by the code official, and such construction or work shall remain visible and able to be accessed for inspection pur- poses until approved Approval as a result of an inspection shall not be construed to be an approval of a violation of the provisions of this code or of other ordinances of the jurisdic- tion Inspections presuming to give authority to violate or cancel the provisions of this code or of other ordinances of the jurisdiction shall not be valid [A] 107.2 Required inspections and testing. The code offi- cial, on notification from the permit holder or the permit holder's agent, shall make the following inspections and other such inspections as necessary, and shall either release that portion of the construction or notify the permit holder or the permit holder's agent of violations that are required to be corrected The holder of the permtt shall be responsible for scheduling such inspections 1 Underground inspection shall be made after trenches or ditches are excavated and bedded, piping is installed and before backfill is put in place Where excavated soil contains rocks, broken concrete, frozen chunks and other rubble that would damage or break the piping or cause corrosive action, clean backfill shall be on the job site 2 Rough -in inspection shall be made after the roof, fram- mg, f reblocking and bracing are in place and compo- nents to be concealed are complete, and prior to the installation of wall or ceiling membranes 3 Final inspection shall be made upon completion of the installation The requirements of this section shall not be considered to prohibit the operation of any heating appliance installed to replace an existing heating appliance serving an occupied portion of a structure in the event a request for inspection of such heating appliance has been filed with the department not more than 48 hours after replacement work is completed, and before any portion of such appliance is concealed by any per- manent portion of the structure [A] 107.2.1 Other inspections. In addition to the inspec- tions specified in Section 107 2, the code official is autho- rized to make or require other inspections of any construction work to ascertain compliance with the provi- sions of this code and other laws that are enforced [A] 107.2.2 Inspection requests. It shall be the duty of the holder of the permit or lus or her duly authorized agent to notify the code official when work is ready for inspection It shall be the duty of the permit holder to provide access to and means for inspection of such work that is required by this code [A] 107.2.3 Approval required. Work shall not be done beyond the point indicated in each successive inspection without first obtaining the approval of the code official The code official, upon notification, shall make the requested inspections and shall either indicate the portion of the construction that is satisfactory as completed, or notify the permit holder or his or her agent wherein the same falls to comply with this code Any portions that do not comply shall be corrected and such portion shall not be covered or concealed until authorized by the code official [A] 107.2.4 Approved inspection agencies. The code official is authorized to accept reports of approved agen- cies, provided that such agencies satisfy the requirements as to qualifications and reliability [A] 107.2.5 Evaluation and follow-up inspection ser- vices. Prior to the approval of a prefabricated construction assembly having concealed work and the issuance of a permit, the code official shall require the submittal of an evaluation report on each prefabricated construction assembly, indicating the complete details of the mstalla- tion, including a description of the system and its compo- nents, the basis on which the system is being evaluated, test results and similar information and other data as nec- essary for the code official to determine conformance to this code [A] 107.2.5.1 Evaluation service. The code official shall designate the evaluation service of an approved agency as the evaluation agency, and review such agency's evaluation report for adequacy and confor- mance to this code [A] 107.2.5.2 Follow-up inspection. Except where ready access is provided to installations, appliances, service equipment and accessories for complete inspec- tion at the site without disassembly or dismantling, the code official shall conduct the m-plant inspections as frequently as necessary to ensure conformance to the approved evaluation report or shall designate an inde- pendent, approved inspection agency to conduct such inspections The inspection agency shall furnish the code official with the follow-up inspection manual and a report of inspections upon request, and the mstalla- tion shall have an identifying label permanently affixed to the system indicating that factory inspections have been performed [A] 107.2.5.3 Test and inspection records. Required test and inspection records shall be available to the code official at all times during the fabrication of the installation and the erection of the building, or such records as the code official designates shall be filed [A] 107.3 Testing. Installations shall be tested as required in this code and in accordance with Sections 107 3 1 through 10733 Tests shall be made by the permit holder and observed by the code official 2018 INTERNATIONAL FUEL GAS CODE" CoLFIEILOO?.o17 ICC ALL RIGHTS RESERVED A—LDd by HDO,, Van Dme(Rvdme pooch od om).(Dty of PnmdNmod)Odo,N=b,,x1o08170S601 JM 15, xm.o oc 51 AM (PET) t to Lie Affiee^® Rt, ICC No fwN¢[TAodomo,,m AtO,Pepeodomo- by anytlt Party o, Axmboemd,Oo[vsd Mglo—ody mpyncg and Nyodwg L,oIRb¢d ANY VNAVTHO RIVER REICLA VCIION OR DISIRIBITTO N IS A VIOLATION OF THE FEDERAL COPYRIGHT ACT AND THE LICENSE AGREEMENT. AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER SCOPE AND ADMINISTRATION [A] 107.3.1 New, altered, extended or repaired installa- tions. New installations and parts of existing installations, which have been altered, extended, renovated or repaired, shall be tested as prescribed herein to disclose leaks and defects [A] 107.3.2 Apparatus, instruments, material and labor for tests. Apparatus, instruments, material and labor required for testing an installation or part thereof shall be furnished by the permit holder [A] 107.3.3 Reinspectiion and testing. Where any work or installation does not pass an initial test or inspection, the necessary corrections shall be made so as to achieve com- pliance with this code The work or installation shall then be resubmitted to the code official for inspection and test - mg [A] 107.4 Approval. After the prescribed tests and inspec- tions indicate that the work complies in all respects with this code, a notice of approval shall be issued by the code official [A] 107.4.1 Revocation. The code official is authorized to, in writing, suspend or revoke a notice of approval issued under the provisions of this code wherever the notice is issued in error, or on the basis of incorrect infor- mation supplied or where it is determined that the building or structure, premise, or portion thereof is in violation of any ordinance or regulation or any of the provisions of this code [A] 107.5 Temporary connection. The code official shall have the authority to allow the temporary connection of an installation to the sources of energy for the purpose of testing the installation or for use under a temporary certificate of occupancy [A] 107.6 Connection of service utilities. A person shall not make connections from a utility, source of energy, fuel or power to any bwldmg or system that is regulated by this code for which a permit is required until authorized by the code official SECTION 108 (IFGC) VIOLATIONS [A] 108.1 Unlawful acts. It shall be unlawful for a person, firm or corporation to erect, construct, alter, repair, remove, demolish or utilize an installation, or cause same to be done, in conflict with or in violation of any of the provisions of this code [A] 108.2 Notice of violation. The code official shall serve a notice of violation or order to the person responsible for the erection, installation, alteration, extension, repair, removal or demolition of work in violation of the provisions of this code, or in violation of a detail statement or the approved construc- tion documents thereunder, or in violation of a permit or cer- tificate issued under the provisions of this code Such order shall direct the discontinuance of the illegal action or condi- tion and the abatement of the violation [A] 108.3 Prosecution of violation. If the notice of violation is not complied with promptly, the code official shall request the legal counsel of the jurisdiction to institute the appropri- ate proceeding at law or in equity to restrain, correct or abate such violation, or to require the removal or termination of the unlawful occupancy of the structure in violation of the provi- sions of this code or of the order or direction made pursuant thereto [A] 108.4 Violation penalties. Persons who shall violate a provision of this code, fall to comply with any of the require- ments thereof or erect, install, alter or repair work in violation of the approved construction documents or directive of the code official, or of a permit or certificate issued under the provisions of this code, shall be guilty of a [SPECIFY OFFENSE], punishable by a fine of not more than [AMOUNT] dollars or by imprisonment not exceeding [NUMBER OF DAYS], or both such fine and imprisonment Each day that a violation continues after due notice has been served shall be deemed a separate offense [A] 108.5 Stop work orders. Upon notice from the code offi- cial that work is being performed contrary to the provisions of this code or in a dangerous or unsafe manner, such work shall immediately cease Such notice shall be in writing and shall be given to the owner of the property, the owner's authorized agent, or the person doing the work The notice shall state the conditions under which work is authorized to resume Where an emergency exists, the code official shall not be required to give a written notice prior to stopping the work Any person who shall continue any work on the system after having been served with a stop work order, except such work as that person is directed to perform to remove a viola- tion or unsafe condition, shall be liable for a fine of not less than [AMOUNT] dollars or more than [AMOUNT] dollars [A] 108.6 Abatement of violation. The imposition of the penalties herein prescribed shall not preclude the legal officer of the jurisdiction from instituting appropriate action to pre- vent unlawful construction, restrain, correct or abate a viola- tion, prevent illegal occupancy of a building, structure or premises, or stop an illegal act, conduct, business or utiliza- tion of the installations on or about any premises [A] 108.7 Unsafe installations. An installation that is unsafe, constitutes a fire or health hazard, or is otherwise dangerous to human life, as regulated by this code, is hereby declared an unsafe installation Use of an installation regulated by this code constituting a hazard to health, safety or welfare by rea- son of inadequate maintenance, dilapidation, fire hazard, disaster, damage or abandonment is hereby declared an unsafe use Such unsafe installations are hereby declared to be a public nuisance and shall be abated by repair, rehabilita- tion, demolition or removal [A] 108.7.1 Authority to condemn installations. When- ever the code official determines that any installation, or portion thereof, regulated by this code has become hazard- ous to life, health or property, he or she shall order in writ- ing that such installations either be removed or restored to a safe condition A time limit for compliance with such order shall be specified in the written notice A person shall not use or maintain a defective installation after receiving such notice Where such installation is to be disconnected, written notice as prescribed in Section 108 2 shall be given In cases of immediate danger to life or property, such discon- nection shall be made immediately without such notice 2018 INTERNATIONAL FUEL GAS CODE" 7 I I [ I CALFIEIL @ 2017 ICC ALL RIGHTS RESERVED A—LDd by H®Ih¢ Van Dme(Rv dme pooch od om),(Dty of FRmdNmod)O[do, Nomb6xlo08170S601JM 15. ZMO oc 51 AM (PET) Mt,b,mt to ( Lie Ag,, ^®'^Rt, ICC No fwN¢[TAodomoo.m AtO, goodomo- by any Ot Party o, Axmboemdm6o d Mglo—ody oTyncg and Nyodwg LARISAd ANY VNAVTHO RIVER REICLA VCTION OR DISIRIBITTO N IS A VIOLATION OF THE FEDERAL COPYRIGHT ACT AND THE LICENSE AGREEMENT. AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER SCOPE AND ADMINISTRATION [A] 108.7.2 Authority to disconnect service utilities. The code official shall have the authority to require dis- connection of utility service to the building, structure or system regulated by the technical codes in case of emer- gency where necessary to eliminate an immediate hazard to life or property The code official shall notify the serv- ing utility and, where possible, the owner or the owner's authorized agent and occupant of the bwldmg, structure or service system of the decision to disconnect prior to taking such action If not notified prior to disconnection, the owner or occupant of the building, structure or service sys- tem shall be notified in writing, as soon as practicable thereafter [A] 108.7.3 Connection after order to disconnect. A person shall not make energy source connections to instal- lations regulated by this code that have been disconnected or ordered to be disconnected by the code official, or the use of which has been ordered to be discontinued by the code official until the code official authorizes the recon- nection and use of such installations Where an installation is maintained in violation of this code, and in violation of a notice issued pursuant to the provisions of this section, the code official shall institute appropriate action to prevent, restrain, correct or abate the violation SECTION 109 (IFGC) MEANS OF APPEAL [A] 109.1 Application for appeal. A person shall have the right to appeal a decision of the code official to the board of appeals An application for appeal shall be based on a claim that the true intent of this code or the rules legally adopted thereunder have been incorrectly interpreted, the provisions of this code do not fully apply or an equally good or better form of construction is proposed The application shall be filed on a form obtained from the code official within 20 days after the notice was served [A] 109.2 Membership of board. The board of appeals shall consist of five members appointed by the chief appointing authority as follows one for 5 years, one for 4 years, one for 3 years, one for 2 years and one for 1 year Thereafter, each new member shall serve for 5 years or until a successor has been appointed [A] 109.2.1 Qualifications. The board of appeals shall consist of five individuals, one from each of the following professions or disciplines 1 Registered design professional who is a registered architect, or a builder or superintendent of building construction with not less than 10 years' experience, 5 of which shall have been in responsible charge of work 2 Registered design professional with structural engi- neering or architectural experience 3 Registered design professional with fuel gas and plumbing engineering experience, or a fuel gas con- tractor with not less than 10 years' experience, 5 of which shall have been in responsible charge of work 4 Registered design professional with electrical engi- neering experience, or an electrical contractor with not less than 10 years' experience, 5 of which shall have been in responsible charge of work 5 Registered design professional with fire protection engineering experience, or a fire protection contrac- tor with not less than 10 years' experience, 5 of which shall have been in responsible charge of work [A] 109.2.2 Alternate members. The chief appointing authority shall appoint two alternate members who shall be called by the board chairman to hear appeals during the absence or disqualification of a member Alternate mem- bers shall possess the qualifications required for board membership and shall be appointed for 5 years, or until a successor has been appointed [A] 109.2.3 Chairman. The board shall annually select one of its members to serve as chairman [A] 109.2.4 Disqualification of member. A member shall not hear an appeal in which that member has a personal, professional or financial interest [A] 109.2.5 Secretary. The chief administrative officer shall designate a qualified clerk to serve as secretary to the board The secretary shall file a detailed record of all pro- ceedings in the office of the cluef administrative officer [A] 109.2.6 Compensation of members. Compensation of members shall be determined by law [A] 109.3 Notice of meeting. The board shall meet upon notice from the chairman, within 10 days of the filing of an appeal, or at stated periodic meetings [A] 109.4 Open hearing. Hearings before the board shall be open to the public The appellant, the appellant's representa- tive, the code official and any person whose interests are affected shall be given an opportunity to be heard [A] 109.4.1 Procedure. The board shall adopt and make available to the public through the secretary procedures under which a hearing will be conducted The procedures shall not require compliance with strict rules of evidence, but shall mandate that only relevant information be received [A] 109.5 Postponed hearing. Where five members are not present to hear an appeal, either the appellant or the appel- lant's representative shall have the right to request a post- ponement of the hearing [A] 109.6 Board decision. The board shall modify or reverse the decision of the code official by a concurring vote of three members [A] 109.6.1 Resolution. The decision of the board shall be by resolution Certified copies shall be furnished to the appellant and to the code official [A] 109.6.2 Administration. The code official shall take immediate action in accordance with the decision of the board [A] 109.7 Court review. Any person, whether or not a previ- ous party to the appeal, shall have the right to apply to the appropriate court for a writ of certiorari to correct errors of law Application for review shall be made in the manner and time required by law following the filing of the decision in the office of the chief administrative officer 2018 INTERNATIONAL FUEL GAS CODE" CopyrightOO?.o17 ICC ALL RIGHTS RESERVED A—LDd by HDO,, Van Dme(Rvdme pooch od om).(Dty of PnmdNmod)Odo,N=b,,x1o08170S601 JM 15, xm.o oc 51 AM (PET) t to Lie Affiee^® Rt, ICC No fwN¢[TAodomoo.m AtO,Pepeodomo- by anytlt Party o, Axmboemd,Oo[vsd Mglo—ody mpyncg and Nyodwg L,oIRb¢d ANY VNAVTHO RIVER REICLA VCIION OR DISIRIBITTO N IS A VIOLATION OF THE FEDERAL COPYRIGHT ACT AND THE LICENSE AGREEMENT. AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER SCOPE AND ADMINISTRATION SECTION 110 (IFGC) TEMPORARY EQUIPMENT, SYSTEMS AND USES [A] 110.1 General. The code official is authorized to issue a permit for temporary equipment, systems and uses Such per- mits shall be limited as to time of service, but shall not be permitted for more than 180 days The code official is autho- rized to grant extensions for demonstrated cause [A] 110.2 Conformance. Temporary equipment, systems and uses shall conform to the structural strength, fire safety, means of egress, accessibility, light, ventilation and sanitary requirements of this code as necessary to ensure the public health, safety and general welfare [A] 110.3 Temporary utilities. The code official is autho- rized to give permission to temporarily supply utilities before an installation has been fully completed and the final certifi- cate of completion has been issued The part covered by the temporary certificate shall comply with the requirements specified for temporary lighting, heat or power in the code [A] 110.4 Termination of approval. The code official is authorized to teammate such permit for a temporary structure or use and to order the temporary structure or use to be dis- continued 2018 INTERNATIONAL FUEL GAS CODE" 9 I I 1 I CALFIEIL @ 2017 ICC ALL RIGHTS RESERVED A—LDd by H®Ih¢ Van Dme(Rv dme pooch od om),(Dty of FRmdNmod)O[do, Nomb6xlo08170S601JM 15. ZMO oc 51 AM (PET) Mt,b,mt to ( Lie Ag,, ^®'^Rt, ICC No fwN¢[TAodomo,,m AtO, goodomo- by any Ot Party o, Axmboemdm6o d Mglo—ody oTyncg and Nyodwg TARISAd ANY VNAVTHO RIVER REICLA VCTION OR DISIRIBITTO N IS A VIOLATION OF THE FEDERAL COPYRIGHT ACT AND THE LICENSE AGREEMENT. AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER 10 2018 INTERNATIONAL FUEL GAS CODE" " FrTTi' CopynghtOo2.017 ICC ALL RIGHTS RESERVED A—LDdby H®Ih¢Van Cm,(Rvdme Oo,d—od om),(Qty of FRmdNmod)O[d6N=b6*1008170S601 JM 15. ZMO oc 51 AM(PET)p,,mmt to rk ff.,I lk,ff., RR I,—Ag,—^ '^M, ICC Nootths,Aodomo,,oALhsodomo-by any Ot Party o[Axmboemd,Oo[vsd Mglo— odyWpyaog and,yodwg GMIRISed ANY VNAVTHO OLDER REPROD V,MN OR D ISIRIEVTION IS VIOLATION OP THE FEDERAL COPYRIGHT 11 AND THE LICENSE AGRE EM ENT. AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER CHAPTER 2 DEFINITIONS User note: About this chapter., Codes, by their very nature, are technical documents Every word, term and punctuation mark can add to or change the meaning of a technical requirement It is necessary to maintain a consensus on the specific meaning of each term contained in the code Chapter 2 performs this function by stating clearly what specific terms mean for the purposes of the code SECTION 201 (IFGC) GENERAL 201.1 Scope. Unless otherwise expressly stated, the follow- ing words and terms shall, for the purposes of this code and standard, have the meanings indicated in this chapter 201.2 Interchangeability. Words used in the present tense include the future, words in the masculine gender include the feminine and neuter, the singular number includes the plural and the plural, the singular 201.3 Terms defined in other codes. Where terms are not defined in this code and are defined in the International Building Code, International Fire Code, International Mechanical Code or International Plumbing Code, such terms shall have meanings ascribed to them as m those codes 201.4 Terms not defined. Where terms are not defined through the methods authorized by this section, such terms shall have ordinarily accepted meanings such as the context implies SECTION 202 (IFGC) GENERAL DEFINITIONS [M] ACCESS (TO). That which enables a device, appliance or equipment to be reached by ready access or by a means that first requires the removal or movement of a panel, door or similar obstruction (see also "Ready access") AIR CONDITIONER, GAS -FIRED. A gas-burning, auto- matically operated appliance for supplying cooled air, dehu- midified air, or both, or chilled liquid [M] AIR CONDITIONING. The treatment of air so as to control simultaneously the temperature, humidity, cleanness and distribution of the air to meet the requirements of a con- ditioned space [M] AIR, EXHAUST. Air being removed from any space or piece of equipment or appliance and conveyed directly to the atmosphere by means of openings or ducts [M] AIR -HANDLING UNIT. A blower or fan used for the purpose of distributing supply air to a room, space or area [M] AIR, MAKEUP. Any combination of outdoor and trans- fer air intended to replace exhaust air and exfiltration [A] ALTERATION. A change in a system that involves an extension, addition or change to the arrangement, type or pur- pose of the original installation ANODELESS RISER. A transition assembly in which plas- tic piping is installed and term mated above ground outside of a building [M] APPLIANCE. Any apparatus or device that utilizes a fuel or a raw material as a fuel to produce light, heat, power, I refrigeration or au conditioning Also, an apparatus that com- presses fuel gases APPLIANCE, AUTOMATICALLY CONTROLLED. Appliances equipped with an automatic burner ignition and safety shutoff device and other automatic devices that accom- plish complete turn -on and shutoff of the gas to the main burner or burners, and graduate the gas supply to the burner or burners, but do not affect complete shutoff of the gas APPLIANCE, FAN -ASSISTED COMBUSTION. An appliance equipped with an integral mechanical means to either draw or force products of combustion through the com- bustion chamber or heat exchanger APPLIANCE TYPE. Low -heat appliance (residential appliance). Any appli- ance in which the products of combustion at the point of entrance to the flue under normal operating conditions have a temperature of 1,000°F (538°C) or less Medium -heat appliance. Any appliance in which the products of combustion at the point of entrance to the flue under normal operating conditions have a temperature of more than 1,000°F (538°C), but not greater than 2,000°F (1093°C) APPLIANCE, UNVENTED. An appliance designed or installed in such a manner that the products of combustion are not conveyed by a vent or chimney directly to the outside atmosphere [M] APPLIANCE, VENTED. An appliance designed and installed in such a manner that all of the products of combus- tion are conveyed directly from the appliance to the outdoor atmosphere through an approved chimney or vent system [A] APPROVED. Acceptable to the code official [A] APPROVED AGENCY. An established and recognized agency that is regularly engaged in conducting tests, farmsh- ing inspection services or furnishing certification, where such agency has been approved by the code official ATMOSPHERIC PRESSURE. The pressure of the weight of air and water vapor on the surface of the earth, approxi- mately 14 7 pounds per square inch (psi) (101 kPa absolute) at sea level 2018 INTERNAT10NAL FUEL GAS CODE" 11 I I 1 I CALFIEIL @ 2017 ICC ALL RIGHTS RESERVED A—LDd by H®Ih¢ Van Dme(Rv dme pooch od om),(Qty of FRmdNmod)O[do, Nomb6xlo08170S601JM 15, ZMO oc 51 AM (PET) rt,—t to ( Lie Ag,, ^®'^Rt, ICC No fwN¢[TAodomo,,m AtO, goodomo- by any Ot Party o, Axmboemdm6o d Mglo—ody oTyncg and Nyodwg LARISAd ANY VNAVTHO RIVER REICLA VCTION OR DISIRIBITTO N IS A VIOLATION OF THE FEDERAL COPYRIGHT ACT AND THE LICENSE AGREEMENT. AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER DEFINITIONS AUTOMATIC IGNITION. Ignition of gas at the burner(s) when the gas controlling device is turned on, including reig- nition if the flames on the burner(s) have been extinguished by means other than by the closing of the gas controlling device BAFFLE. An object placed in an appliance to change the direction of or retard the flow of air, air -gas mixtures or flue gases BAROMETRIC DRAFT REGULATOR. A balanced damper device attached to a chimney, vent connector, breech- ing or flue gas manifold to protect combustion appliances by controlling chimney draft A double-acting barometric draft regulator is one whose balancing damper is free to move in either direction to protect combustion appliances from both excessive draft and backdraft BOILER, LOW-PRESSURE. A self-contained appliance for supplying steam or hot water Hot water heating boiler. A boiler in which no steam is generated, from which hot water is circulated for heating purposes and then returned to the boiler, and that operates at water pressures not exceeding 160 pounds per square inch gauge (psig) (1100 kPa gauge) and at water tempera- tures not exceeding 250°F (121°C) at or near the boiler outlet Hot water supply boiler. A boiler, completely filled with water, which furnishes hot water to be used externally to itself, and that operates at water pressures not exceeding 160 psig (1100 kPa gauge) and at water temperatures not exceeding 250°F (121°C) at or near the boiler outlet Steam heating boiler. A boiler in which steam is gener- ated and that operates at a steam pressure not exceeding 15 psig (100 kPa gauge) BONDING JUNIPER. A conductor installed to electrically connect metallic gas piping to the grounding electrode sys- tem [M] BRAZING. A metal -joining process wherein coales- cence is produced by the use of a nonferrous filler metal hav- ing a melting point above 1,000°F (538°C), but lower than that of the base metal being joined The filler material is dis- tributed between the closely fitted surfaces of the joint by capillary action BROILER. A general term including salamanders, barbe- cues and other appliances cooking primarily by radiated heat, excepting toasters BTU. Abbreviation for British thermal unit, which is the quantity of heat required to raise the temperature of 1 pound (454 g) of water 1°F (0 56°C) (1 Btu =1055 J) BURNER. A device for the final conveyance of the gas, or a mixture of gas and au, to the combustion zone Induced -draft. A burner that depends on draft induced by a fan that is an integral part of the appliance and is located downstream from the burner Power. A burner in which gas, air or both are supplied at pressures exceeding, for gas, the line pressure, and for air, atmospheric pressure, with this added pressure being applied at the burner [M] CHIMNEY. A primarily vertical structure containing one or more flues, for the purpose of carrying gaseous prod- ucts of combustion and air from an appliance to the outside atmosphere Factory -built chimney. A listed and labeled chimney composed of factory -made components, assembled in the field in accordance with manufacturer's instructions and the conditions of the listing Masonry chimney. A field -constructed chimney com- posed of solid masonry units, bricks, stones or concrete Metal chimney. A field -constructed chimney of metal [M] CLEARANCE. The minimum distance through air measured between the heat -producing surface of the mechan- ical appliance, device or equipment and the surface of the combustible matenal or assembly CLOTHES DRYER. An appliance used to dry wet laundry by means of heated air Dryer classifications are as follows Type 1. Factory -built package, multiple production Pri- marily used in family living environment Usually the smallest unit physically and in function output Type 2. Factory-buult package, multiple production Used in business with direct intercourse of the function with the public Not designed for use in individual family living environment [A] CODE. These regulations, subsequent amendments thereto or any emergency rule or regulation that the adminis- trative authority having jurisdiction has lawfully adopted [A] CODE OFFICIAL. The officer or other designated authority charged with the administration and enforcement of this code, or a duly authorized representative [M] COMBUSTIBLE ASSEMBLY. Wall, floor, ceiling or other assembly constructed of one or more component mate- rials that are not defined as noncombustible [M] COMBUSTIBLE MATERIAL. Any material not defined as noncombustible [M] COMBUSTION. In the context of this code, refers to the rapid oxidation of fuel accompanied by the production of heat or heat and light [M] COMBUSTION AIR. Au necessary for complete com- bustion of a fuel, including theoretical air and excess air [M] COMBUSTION CHAMBER. The portion of an appli- ance within which combustion occurs [M] COMBUSTION PRODUCTS. Constituents resulting from the combustion of a fuel with the oxygen of the air, including men gases, but excluding excess air [M] CONCEALED LOCATION. A location that cannot be accessed without damaging permanent parts of the bwldmg structure or finish surface Spaces above, below or behind readily removable panels or doors shall not be considered as concealed CONCEALED PIPING. Piping that is located in a con- cealed location (see "Concealed location") CONDENSATE. The liquid that condenses from a gas (including flue gas) caused by a reduction in temperature or increase in pressure 12 2018 INTERNATIONAL FUEL GAS CODE" rill 1 1 UER Copyngbt Oo 2.017 ICC ALL RIGHTS RESERVED A—LDd by H®Ih¢ Van DmA(Rv dme Oo,dA od om),(Qty of FRmdNmod) O[do, N=b,, *1 008170S6 01 JM 15, m0 oc 51 AM (PET) Mt,mmt to S I ( LEA Ag,e^ '^Rt, ICC No otths TAodomoo. m AtOy goodomo- by any Ot Party o[ AAmboemd,Oo[vsd Mgle —ooly oTymg and Nyodwg GMIRISAd ANY VNAVTHO OLDER REPROD ,,MN OR D ISIRIEVTION IS VIOLATION OP THE FED REAL COPYRIGHT ACT AND THE LICENSE AGREEMENT, AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER DEFINITIONS CONNECTOR, APPLIANCE (Fuel). Rigid metallic pipe and fittings, semirigid metallic tubing and fittings or a listed and labeled device that connects an appliance to the gas pip- ing system CONNECTOR, CHIMNEY OR VENT. The pipe that con- nects an appliance to a chimney or vent [A] CONSTRUCTION DOCUMENTS. All of the written, graphic and pictorial documents prepared or assembled for describing the design, location and physical characteristics of the elements of the project necessary for obtaining a mechan- ical permit [M] CONTROL. A manual or automatic device designed to regulate the gas, air, water or electrical supply to, or operation of, a mechanical system CONVERSION BURNER. A unit consisting of a burner and its controls for installation in an appliance originally uti- lizing another fuel COUNTER APPLIANCES. Appliances such as coffee brewers and coffee urns and any appurtenant water -heating appliance, food and dish warmers, hot plates, griddles, waffle bakers and other appliances designed for installation on or in a counter CUBIC FOOT. The amount of gas that occupies 1 cubic foot (0 02832 m') when at a temperature of 60°F (160C), saturated with water vapor and under a pressure equivalent to that of 30 inches of mercury (101 kPa) [M] DAMPER. A manually or automatically controlled device to regulate draft or the rate of flow of au or combus- tion gases DECORATIVE APPLIANCE, VENTED. A vented appli- ance wherein the primary function lies in the aesthetic effect of the flames DECORATIVE APPLIANCES FOR INSTALLATION IN VENTED FIREPLACES. A vented appliance designed for installation within the fire chamber of a vented fireplace, wherein the primary function lies in the aesthetic effect of the flames DEMAND. The maximum amount of gas input required per unit of time, usually expressed in cubic feet per hour, or Btu/h (1 Btu/h = 0 2931 W) [BS] DESIGN FLOOD ELEVATION. The elevation of the "design flood," including wave height, relative to the datum specified on the community's legally designated flood hazard map In areas designated as Zone AO, the design flood eleva- tion shall be the elevation of the highest existing grade of the building's perimeter plus the depth number (m feet) specified on the flood hazard map In areas designated as Zone AO where a depth number is not specified on the map, the depth number shall be taken as being equal to 2 feet (610 mm) DILUTION AIR. Air that is introduced into a draft hood and is mixed with the flue gases DIRECT -VENT APPLIANCES. Appliances that are con- structed and installed so that all air for combustion is derived directly from the outdoor atmosphere and all flue gases are discharged directly to the outdoor atmosphere [M] DRAFT. The pressure difference existing between the appliance or any component part and the atmosphere, that causes a continuous flow of air and products of combustion through the gas passages of the appliance to the atmosphere Mechanical or induced draft. The pressure difference created by the action of a fan, blower or ejector that is located between the appliance and the chimney or vent term oration Natural draft. The pressure difference created by a vent or clumney because of its height, and the temperature dif- ference between the flue gases and the atmosphere DRAFT HOOD. A nonadjustable device built into an appli- ance, or made as part of the vent connector from an appli- ance, that is designed to provide for ready escape of the flue gases from the appliance in the event of no draft, backdraft or stoppage beyond the draft hood, prevent a backdraft from entering the appliance, and neutralize the effect of stack action of the chimney or gas vent upon operation of the appli- ance DRAFT REGULATOR. A device that functions to maintain a desired draft in the appliance by automatically reducing the draft to the desired value [M] DRIP. The container placed at a low point in a system of piping to collect condensate and from which the condensate is removable DRY GAS. A gas having a moisture and hydrocarbon dew point below any normal temperature to which the gas piping is exposed DUCT FURNACE. A warm -air furnace normally installed in an air distribution duct to supply warm air for heating This definition shall apply only to a warm -au heating appliance that depends for air circulation on a blower not furnished as part of the furnace [M] DUCT SYSTEM. A continuous passageway for the transmission of air that, in addition to ducts, includes duct fit- tings, dampers, plenums, fans and accessory air -handling equipment [A] DWELLING UNIT. A single unit providing complete, independent living facilities for one or more persons, includ- ing permanent provisions for living, sleeping, eating, cooking and sanitation EQUIPMENT. Apparatus and devices other than appliances EXCESS FLOW VALVE IFFY). A valve designed to acti- vate when the fuel gas passing through it exceeds a pre- scribed flow rate EXTERIOR MASONRY CHIMNEYS. Masonry chimneys exposed to the outdoors on one or more sides below the roof line [M] FIREPLACE. A fire chamber and hearth constructed of noncombustible material for use with solid fuels and pro- vided with a chimney Factory -built fireplace. A fireplace composed of listed factory -built components assembled in accordance with the terms of listing to form the completed fireplace 2018 INTERNATIONAL FUEL GAS CODE" 13 I 1 1 1 CALFIEIL @ 2017 ICC ALL RIGHTS RESERVED A—LDd by H®Ih¢ Van Dme(Rv dme pooch od om),(Qty of FRmdNmod) O[do, Nomb,,*1008170S601 JM 15, m0 oc 51 AM (PET) Mt,b,mt to ( Lie Ag,, ^®'^Rt, ICC No fwN¢[TAodomoo.m AtO, goodomo- by any Ot Party o, Axmboemdm6o d Mglo—ody oTyncg and Nyodwg LARISAd ANY VNAVTHO RIVER REICLA VCTION OR DISIRIBITTO N IS A VIOLATION OF THE FEDERAL COPYRIGHT ACT AND THE LICENSE AGREEMENT. AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER DEFINITIONS Masonry fireplace. A hearth and fire chamber of solid masonry units such as bricks, stones, listed masonry units or reinforced concrete, provided with a suitable chimney FIRING VALVE. A valve of the plug and barrel type designed for use with gas, and equipped with a lever handle for manual operation and a dial to indicate the percentage of opening FLAME SAFEGUARD. A device that will automatically shut off the fuel supply to a main burner or group of burners when the means of ignition of such burners becomes inopera- tive, and when flame failure occurs on the burner or group of burners FLASHBACK ARRESTOR CHECK VALVE. A device that will prevent the backflow of one gas into the supply sys- tem of another gas and prevent the passage of flame into the gas supply system [BS] FLOOD HAZARD AREA. The greater of the follow- ing two areas 1 The area within a floodplani subject to a 1 percent or greater chance of flooding in any given year This area designated as a flood hazard area on a com- munity's flood hazard map, or otherwise legally desig- nated FLOOR FURNACE. A completely self-contained furnace suspended from the floor of the space being heated, taking air for combustion from outside such space and with means for observing flames and lighting the appliance from such space Fan type. A floor furnace equipped with a fan that pro- vides the primary means for circulating au Gravity type. A floor furnace depending primarily on cir- culation of au by gravity This classification shall also include floor furnaces equipped with booster -type fans that do not materially restrict free circulation of air by gravity flow when such fans are not in operation FLUE, APPLIANCE. The passage(s) within an appliance through which combustion products pass from the combus- tion chamber of the appliance to the draft hood inlet opening on an appliance equipped with a draft hood or to the outlet of the appliance on an appliance not equipped with a draft hood FLUE COLLAR. That portion of an appliance designed for the attachment of a draft hood, vent connector or venting sys- tem FLUE GASES. Products of combustion plus excess au in appliance flues or heat exchangers [M] FLUE LINER (LINING). A system or material used to form the inside surface of a flue in a chimney or vent, for the purpose of protecting the surrounding structure from the effects of combustion products and for conveying combus- tion products without leakage to the atmosphere FUEL GAS. A natural gas, manufactured gas, liquefied petroleum gas or mixtures of these gases [M] FURNACE. A completely self-contained heating unit that is designed to supply heated au to spaces remote from or adjacent to the appliance location FURNACE, CENTRAL. A self-contained appliance for heating air by transfer of heat of combustion through metal to the air, and designed to supply heated air through ducts to spaces remote from or adjacent to the appliance location FURNACE, ENCLOSED. A specific heating, or heating and ventilating, furnace incorporating an integral total enclo- sure and using only outside air for combustion FURNACE PLENUM. An air compartment or chamber to which one or more ducts are connected and that forms part of an air distribution system GAS CONVENIENCE OUTLET. A permanently mounted, manually operated device that provides the means for con- necting an appliance to, and disconnecting an appliance from, the supply piping The device includes an integral, manually operated valve with a nondisplaceable valve mem- ber and is designed so that disconnection of an appliance only occurs when the manually operated valve is in the closed position GAS PIPING. An installation of pipe, valves or fittings installed on a premises or in a building and utilized to convey fuel gas [F] GASEOUS HYDROGEN SYSTEM. See Section 702 1 [M] HAZARDOUS LOCATION. Any location considered to be a fire hazard for flammable vapors, dust, combustible fibers or other highly combustible substances The location is not necessarily categorized in the building code as a lugh- hazard group classification HOUSE PIPING. See "Piping system " [F] HYDROGEN FUEL -GAS ROOM. See Section 702 1 HYDROGEN -GENERATING APPLIANCE. See Section 7021 IGNITION PILOT. A pilot that operates during the lighting cycle and discontinues during main burner operation [M] IGNITION SOURCE. A flame, spark or hot surface capable of igniting flammable vapors or fumes Such sources include appliance burners, burner ignitors and electrical swrtclung devices INCINERATOR. An appliance used to reduce combustible refuse material to ashes and that is manufactured, sold and installed as a complete unit INDUSTRIAL AIR HEATERS, DIRECT -FIRED NON - RECIRCULATING. A heater in which all the products of combustion generated by the burners are released into the air stream being heated The purpose of the heater is to offset building heat loss by heating only outdoor air INDUSTRIAL AIR HEATERS, DIRECT -FIRED RECIRCULATING. A heater in which all the products of combustion generated by the burners are released into the air stream being heated The purpose of the heater is to offset building heat loss by heating outdoor air, and, if applicable, indoor au INFRARED RADIANT HEATER. A heater that directs a substantial amount of its energy output in the form of infrared radiant energy into the area to be heated Such heaters are of either the vented or invented type [M] JOINT, FLANGED. A joint made by bolting together a pair of flanged ends 4m 14 2018 INTERNATIONAL FUEL GAS CODE" ff.,( rill 1 1 Copynght Oo 2.017 ICC ALL RIGHTS RESERVED A—LDd by H®Ih¢ Van DmA(Rv dme Oo,dA od om),(Qty of FRmdNmod) O[do, N=b,, *1 008170S6 01 JM 15, m0 oc 51 AM (GET) Mt,mmt to Fk I fiTER LEA Ag,e^ '^Rt, ICC No otths TAodomoo. m AtOy goodomo- by any Ot Party o[ AAmboemd,Oo[vsd Mgle —ooly oTymg and Nyodwg GMIRISAd ANY VNAVTHO OLDER REPROD VCIION OR D ISIRIEVTION IS VIOLATION OP THE FEDERAL COPYRIGHT ACT AND THE LICENSE AGREEME NT. AND REJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER DEFINITIONS [M] JOINT, FLARED. A metal -to -metal compression joint in which a conical spread is made on the end of a tube that is compressed by a flare nut against a mating flare JOINT, MECHANICAL. A general form of gas -tight Iomts obtained by the joining of metal parts through a positive -hold- ing mechanical construction, such as a press joint, flanged joint, threadedjomt, flaredjomt or compression joint [M] JOINT, PLASTIC ADHESIVE. A joint made in ther- moset plastic piping by the use of an adhesive substance that forms a continuous bond between the mating surfaces with- out dissolving either one of them [M] JOINT, PLASTIC HEAT FUSION. A joint made in thermoplastic piping by heating the parts sufficiently to per- mit fusion of the materials when the parts are pressed together [M] JOINT, WELDED. A gas -tight joint obtained by the joining of metal parts in molten state [A] LABELED. Equipment, materials or products to which have been affixed a label, seal, symbol or other identifying mark of a nationally recognized testing laboratory, approved agency or other organization concerned with product evalua- tion that maintains periodic inspection of the production of the above -labeled items and whose labeling indicates either that the equipment, material or product meets identified stan- dards or has been tested and found suitable for a specified purpose LEAK CHECK An operation performed on a gas piping system to verify that the system does not leak LIMIT CONTROL. A device responsive to changes in pres- sure, temperature or level for turning on, shutting off or throt- tling the gas supply to an appliance LIQUEFIED PETROLEUM GAS or LPG (LP -GAS). Liquefied petroleum gas composed predominately of pro- pane, propylene, butanes or butylenes, or mixtures thereof that is gaseous under normal atmospheric conditions, but is capable of being liquefied under moderate pressure at normal temperatures [A] LISTED. Equipment, materials, products or services included in a list published by an organization acceptable to the code official and concerned with evaluation of products or services that maintains periodic inspection of production of listed equipment or materials or periodic evaluation of ser- vices and whose listing states either that the equipment, mate- rial, product or service meets identified standards or has been tested and found suitable for a specified purpose [M] LIVING SPACE. Space within a dwelling unit utilized for living, sleeping, eating, cooking, bathing, waslung and sanitation purposes LOG LIGHTER. A manually operated solid fuel ignition appliance for installation in a vented solid fuel-bummg fire- place LUBRICATED PLUG -TYPE VALVE. A valve of the plug and barrel type provided with means for maintaining a lubri- cant between the bearing surfaces MAIN BURNER. A device or group of devices essentially forming an integral unit for the final conveyance of gas or a mixture of gas and au to the combustion zone, and on which combustion takes place to accomplish the function for which the appliance is designed METER. The instrument installed to measure the volume of gas delivered through it MODULATING. Modulating or throttling is the action of a control from its maximum to minimum position in either pre- determmed steps or increments of movement as caused by its actuating medium [M] NONCOMBUSTIBLE MATERIALS. Materials that, where tested in accordance with ASTM E136, have not fewer than three of four specimens tested meeting all of the follow- ing criteria The recorded temperature of the surface and interior thermocouples shall not at any time during the test rise more than 54°F (30°C) above the furnace temperature at the beginning of the test There shall not be flaming from the specimen after the first30 seconds If the weight loss of the specimen during testing exceeds 50 percent, the recorded temperature of the surface and interior thermocouples shall not at any time during the test rise above the furnace air temperature at the beginning of the test, and there shall not be flaming of the specimen [A] OCCUPANCY. The purpose for which a building, or portion thereof, is utilized or occupied [M] OFFSET (VENT). A combination of approved bends that makes two changes in direction bringing one section of the vent out of line but into a line parallel with the other sec- tion ORIFICE. The opening in a cap, spud or other device whereby the flow of gas is limited and through which the gas is discharged to the burner OUTLET. The point at which a gas -fired appliance connects to the gas piping system OXYGEN DEPLETION SAFETY SHUTOFF SYSTEM (ODS). A system designed to act to shut off the gas supply to the main and pilot burners if the oxygen in the surrounding atmosphere is reduced below a predetermmed level PILOT. A small flame that is utilized to ignite the gas at the main burner or burners [M] PIPING. Where used in this code, "piping" refers to either pipe or tubing, or both Pipe. A rigid conduit of won, steel, copper, copper -alloy or plastic Tubing. Semirigid conduit of copper, copper -alloy alumJ- num, plastic or steel PIPING SYSTEM. The fuel piping, valves and fittings from the outlet of the point of delivery to the outlets of the appli- ance shutoff valves [M] PLASTIC, THERMOPLASTIC. A plastic that is capa- ble of being repeatedly softened by increase of temperature and hardened by decrease of temperature POINT OF DELIVERY. For natural gas systems, the point of delivery is the outlet of the service meter assembly or the outlet of the service regulator or service shutoff valve where a meter is not provided Where a valve is provided at the outlet 2018 INTERNATIONAL FUEL GAS CODE® 15 I " ' CALFIEIL @ 2017 ICC ALL RIGHTS RESERVED A—LDd by H®Ih¢ Van Dme(Rv dme pooch od om),(Qty of FRmdNmod)O[do, Nomb,,*1008170S601 JM 15. ZMO oc 51 AM (PET) Mt,b,mt to ( Lie Ag,, ^®'^Rt, ICC No fwN¢[TAodomoo.m AtO, goodomo- by any Ot Party o, Axmboemdm6o d Mglo—ody oTyncg and Nyodwg LARISAd ANY VNAVTHO RIVER REICLA VCTION OR DISIRIBITTO N IS A VIOLATION OF THE FEDERAL COPYRIGHT ACT AND THE LICENSE AGREEMENT. AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER DEFINITIONS E* of the service meter assembly, such valve shall be considered to be downstream of the point of delivery For undiluted liq- uefied petroleum gas systems, the point of delivery shall be considered to be the outlet of the service pressure regulator, exclusive of line gas regulators, in the system PORTABLE FUEL CELL APPLIANCE. A fuel cell gen- erator of electricity, which is not fixed in place A portable fuel cell appliance utilizes a cord and plug connection to a grid -isolated load and has an integral fuel supply PRESSURE DROP. The loss in pressure due to friction or obstruction in pipes, valves, fittings, regulators and burners PRESSURE TEST. An operation performed to verify the gas -tight integrity of gas piping following its installation or modification PURGE. To free a gas conduit of air or gas, or a mixture of gas and air QUICK -DISCONNECT DEVICE. A hand -operated device that provides a means for connecting and disconnecting an appliance or an appliance connector to a gas supply and that is equipped with an automatic means to shut off the gas sup- ply when the device is disconnected [M] READY ACCESS (TO). That which enables a device, appliance or equipment to be directly reached, without requiring the removal or movement of any panel, door or sim- ilar obstruction (see "Access") [A] REGISTERED DESIGN PROFESSIONAL. An indi- vidual who is registered or licensed to practice their respec- tive design profession as defined by the statutory requirements of the professional registration laws of the state or jurisdiction in which the project is to be constructed REGULATOR. A device for controlling and maintaining a uniform supply pressure, either pounds -to -inches water col- umn (NIP regulator) or inches -to -inches water column (appli- ance regulator) REGULATOR, GAS APPLIANCE. A pressure regulator for controlling pressure to the manifold of the appliance REGULATOR, LINE GAS PRESSURE. A device placed in a gas line between the service pressure regulator and the appliance for controlling, maintaining or reducing the pres- sure in that portion of the piping system downstream of the device REGULATOR, MEDIUM -PRESSURE (MP Regulator). A line pressure regulator that reduces gas pressure from the range of greater than 0 5 psig (3 4 kPa) and less than or equal to 5 psig (34 5 kPa) to a lower pressure REGULATOR, MONITORING. A pressure regulator set in series with another pressure regulator for the purpose of automatically taking control of the pressure downstream of the monitored regulator when that pressure exceeds a set m m- imum REGULATOR, PRESSURE. A device placed in a gas line for reducing, controlling and maintaining the pressure in that portion of the piping system downstream of the device REGULATOR, SERIES. A pressure regulator in series with one or more other pressure regulators REGULATOR, SERVICE PRESSURE. For natural gas systems, a device installed by the serving gas supplier to reduce and limit the service line pressure to delivery pres- sure For undiluted liquefied petroleum gas systems, the reg- ulator located upstream from all line gas pressure regulators, where installed, and downstream from any first stage or a high pressure regulator in the system RELIEF OPENING. The opening provided in a draft hood to permit the ready escape to the atmosphere of the flue prod- ucts from the draft hood in the event of no draft, back draft or stoppage beyond the draft hood, and to permit air into the draft hood in the event of a strong chimney updraft RELIEF VALVE (DEVICE). A safety valve designed to forestall the development of a dangerous condition by reliev- ing either pressure, temperature or vacuum in the hot water supply system RELIEF VALVE, PRESSURE. An automatic valve that opens and closes a relief vent, depending on whether the pres- sure is above or below a predetermined value RELIEF VALVE, TEMPERATURE. Manual reset type. A valve that automatically opens a relief vent at a predetenm med temperature and that must be manually returned to the closed position Resealing or self -closing type. An automatic valve that opens and closes a relief vent, depending on whether the temperature is above or below a predetermined value RELIEF VALVE, VACUUM. A valve that automatically opens and closes a vent for relieving a vacuum within the hot water supply system, depending on whether the vacuum is above or below a predetermined value RISER, GAS. A vertical pipe supplying fuel gas ROOM HEATER, UNVENTED. See "Unvented room heater " ROOM HEATER, VENTED. A free-standing heating unit used for direct heating of the space in and adjacent to that in which the unit is located (see "Vented room heater") SAFETY SHUTOFF DEVICE. See "Flame safeguard" [BF] SHAFT. An enclosed space extending through one or more stories of a building, connecting vertical openings in successive floors, or floors and the roof [A] SLEEPING UNIT. A room or space in which people sleep, which can also include permanent provisions for liv- ing, eating and either sanitation or kitchen facilities, but not both Such rooms and spaces that are also part of a dwelling unit are not sleeping units SPECIFIC GRAVITY. As applied to gas, specific gravity is the ratio of the weight of a given volume to that of the same volume of au, both measured under the same condition STATIONARY FUEL CELL POWER PLANT. A self- contained package or factory -matched packages that consti- tute an automatically operated assembly of integrated sys- tems for generating electrical energy and recoverable thermal energy that is permanently connected and fixed in place THERMOSTAT. Electric switch type. A device that senses changes in tem- perature and controls electrically, by means of separate components, the flow of gas to the burner(s) to maintain selected temperatures [P] THIRD -PARTY CERTIFICATION AGENCY. An ~ approved agency operating a product or material certification 16 2018 INTERNATIONAL FUEL GAS CODE" 11 1 UER CopyngbtOo2.017 ICC ALL RIGHTS RESERVED A—LDd by H®Ih¢ Van DmA(Rvdme Oo,dA od om),(Qty of FRmdNmod)O[do,N=b,,*1008170S601 JM 15, ZMO 0651 AM (PET) Mt,mmt to S I ( LEA Ag,e^ '^Rt, ICC No otths TAodomoo. m AtOy goodomo- by any Ot Party o[ AAmboemd,Oo[vsd Mgle —ooly oTymg and Nyodwg GMIRISAd ANY VNAVTHO OLDER REPROD ,,MN OR D ISIRIEVTION IS VIOLATION OP THE FEDERAL COPYRIGHT ACT AND THE LICENSE AGREEMENT, AND REJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER DEFINITIONS system that incorporates initial product testing, assessment and surveillance of a manufacturer's quality control system [P] THIRD -PARTY CERTIFIED. Certification obtained by the manufacturer indicating that the function and perfor- mance characteristics of a product or material have been determined by testing and ongoing surveillance by an approved thud -party certification agency Assertion of certi- fication is in the form of identification in accordance with the requirements of the third -party certification agency [P] THIRD -PARTY TESTED. Procedure by which an approved testing laboratory provides documentation that a product, material or system conforms to specified require - in ents TOILET, GAS -FIRED. A packaged and completely assem- bled appliance containing a toilet that incinerates refuse instead of flushing it away with water [M] TRANSITION FITTINGS, PLASTIC TO STEEL. An adapter for Iommg plastic pipe to steel pipe The purpose of this fitting is to provide a permanent, pressure -tight con- nection between two materials that cannot be joined directly one to another UNIT HEATER. A self-contained, automatically controlled, vented, fuel -gas -burning, space -heating appliance, intended for installation in the space to be heated without the use of ducts, and having integral means for circulation of air UNLISTED BOILER. A boiler not listed by a nationally recognized testing agency UNVENTED ROOM HEATER. An invented heating appliance designed for stationary installation and utilized to provide comfort heating Such appliances provide radiant heat or convection heat by gravity or fan circulation directly from the heater and do not utilize ducts VALVE. A device used in piping to control the gas supply to any section of a system of piping or to an appliance Appliance shutoff. A valve located in the piping system, used to isolate individual appliances for purposes such as service or replacement Automatic. An automatic or semiautomatic device con- sisting essentially of a valve and operator that control the gas supply to the burner(s) during operation of an appli- ance The operator shall be actuated by application of gas pressure on a flexible diaphragm, by electrical means, by mechanical means, or by other approved means Automatic gas shutoff. A valve used in conjunction with an automatic gas shutoff device to shut off the gas supply to a water -heating system It shall be constructed inte- grally with the gas shutoff device or shall be a separate assembly Individual main burner. A valve that controls the gas supply to an individual main burner Main burner control. A valve that controls the gas sup- ply to the main burner manifold Manual main gas -control. A manually operated valve in the gas line for the purpose of completely turning on or shutting off the gas supply to the appliance, except to pilot or pilots that are provided with independent shutoff Manual reset. An automatic shutoff valve installed in the gas supply piping and set to shut off when unsafe condi- tions occur The device remains closed until manually reopened Service shutoff. A valve, installed by the serving gas sup- plier between the service meter or source of supply and the customer piping system, to shut off the entire piping sys- tem VENT. A pipe or other conduit composed of factory -made components, containing a passageway for conveying com- bustion products and air to the atmosphere, listed and labeled for use with a specific type or class of appliance Special gas vent. A vent listed and labeled for use with listed Category II, III and IV appliances Type B vent. A vent listed and labeled for use with appli- ances with draft hoods and other Category I appliances that are listed for use with Type B vents Type BW vent A vent listed and labeled for use with wall furnaces Type L vent A vent listed and labeled for use with appli- ances that are listed for use with Type L or Type B vents VENT CONNECTOR. See "Connector " VENT GASES. Products of combustion from appliances plus excess air plus dilution air in the vent connector, gas vent or chimney above the draft hood or draft regulator VENT PIPING. Breather. Piping run from a pressure -regulating device to the outdoors, designed to provide a reference to atmo- spheric pressure If the device incorporates an integral pressure relief mechanism, a breather vent can also serve as a relief vent Relief. Piping run from a pressure -regulating or pressure - limiting device to the outdoors, designed to provide for the safe venting of gas in the event of excessive pressure in the gas piping system VENTED APPLIANCE CATEGORIES. Appliances that are categorized for the purpose of vent selection are classified into the following four categories Category I. An appliance that operates with a nonpositwe vent static pressure and with a vent gas temperature that avoids excessive condensate production in the vent Category II. An appliance that operates with a nonposi- tive vent static pressure and with a vent gas temperature that is capable of causing excessive condensate production in the vent Category III. An appliance that operates with a positive vent static pressure and with a vent gas temperature that avoids excessive condensate production in the vent Category IV. An appliance that operates with a positive vent static pressure and with a vent gas temperature that is capable of causing excessive condensate production in the vent VENTED ROOM HEATER. A vented self-contained, free- standing, nonrecessed appliance for furnishing wane air to the space in which it is installed, directly from the heater without duct connections VENTED WALL FURNACE. A self-contained vented appliance complete with grilles or equivalent, designed for incorporation in or permanent attachment to the structure of a 2018 INTERNATIONAL FUEL GAS CODE" 17 I 1 1 1 CALFIEIL @ 2017 ICC ALL RIGHTS RESERVED A—LDd by H®Ih¢ Van Dme(Rv dme pooch od om),(Dty of FRmdNmod)O[do, Nomb,,*1008170S601 JM 15. ZMO oc 51 AM (PET) Mt,b,mt to ( Lie Ag,, ^®'^Rt, ICC No fwN¢[TAodomo,,m AtO, goodomo- by any Ot Party o, Axmboemdm6o d Mglo—ody oTyncg and Nyodwg LARISAd ANY VNAVTHO RIVER REICLA VCTION OR DISIRIBITTO N IS A VIOLATION OF THE FEDERAL COPYRIGHT ACT AND THE LICENSE AGREEMENT. AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER DEFINITIONS building, mobile home or travel trailer, and furnishing heated air circulated by gravity or by a fan directly into the space to be heated through openings in the casing This definition shall exclude floor furnaces, unit heaters and central furnaces as herein defined VENTING SYSTEM. A continuous open passageway from the flue collar or draft hood of an appliance to the outdoor atmosphere for the purpose of removing flue or vent gases A venting system is usually composed of a vent or a chimney and vent connector, if used, assembled to form the open pas- sageway Forced -draft venting system. A portion of a venting sys- tem using a fan or other mechanical means to cause the removal of flue or vent gases under positive static vent pressure Induced draft venting system. A portion of a venting system using a fan or other mechanical means to cause the removal of flue or vent gases under nonposrtive static vent pressure Mechanical draft venting system. A venting system designed to remove flue or vent gases by mechanical means, that consists of an induced draft portion under non - positive static pressure or a forced draft portion under pos- itive static pressure Natural draft venting system. A venting system designed to remove flue or vent gases under nonpositive static vent pressure entirely by natural draft WALL HEATER, UNVENTED-TYPE. A room heater of the type designed for insertion in or attachment to a wall or partition Such heater does not incorporate concealed venting arrangements in its construction and discharges all products of combustion through the front into the room being heated [MJ WATER HEATER. Any heating appliance or equip- ment that heats potable water and supplies such water to the potable hot water distribution system 18 2018 INTERNATIONAL FUEL GAS CODE" 11 1 UER CopyngbtOo2.017 ICC ALL RIGHTS RESERVED A—LDd by H®Ih¢ Van DmA(Rvdme Oo,dA od om),(Dty of FRmdNmod)O[do,N=b,,*1008170S601 JM 15, ZMO oc 51 AM (PET) Mt,mmt to S I ( 1, sAg,e^ '^Rt, ICC No otths TAodomoo. m AtOy goodomo- by any Ot Party o[ AAmboemd,Oo[vsd Mgle —ooly oTymg and Nyodwg GMIRISAd ANY VNAVTHO OLDER REPROD ,,MN OR D ISIRIEVTION IS VIOLATION OP THE FED REAL COPYRIGHT 11 AND THE LICENSE AGREEMENT, AND REJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER CHAPTER 3 GENERAL REGULATIONS User note: About this chapter., Chapter 3 addresses many unrelated topics that would be out of place in other chapters that address specific subjects Topics include listing and labeling, structural safety, appliance locations, access, combustion air, installation requirements, clearances, electri- cal bonding and condensate disposal SECTION 301 (IFGC) GENERAL 301.1 Scope. This chapter shall govern the approval and installation of all equipment and appliances that comprise parts of the installations regulated by this code in accordance with Section 101 2 301.1.1 Other fuels. The requirements for combustion and dilution au for gas -fired appliances shall be governed by Section 304 The requirements for combustion and dilution au for appliances operating with fuels other than fuel gas shall be regulated by the International Mechani- cal Code 301.2 Energy utilization. Heating, ventilating and air-condi- tioning systems of all structures shall be designed and installed for efficient utilization of energy in accordance with the International Energy Conservation Code 301.3 Listed and labeled. Appliances regulated by this code shall be listed and labeled for the application in which they are used unless otherwise approved in accordance with Sec- tion 105 The approval of unlisted appliances in accordance with Section 105 shall be based on approved engineering evaluation 301.4 Labeling. Labeling shall be in accordance with the procedures set forth in Sections 301 4 1 through 301 4 2 3 301.4.1 Testing. An approved agency shall test a repre- sentative sample of the appliances being labeled to the rel- evant standard or standards The approved agency shall maintain a record of all of the tests performed The record shall provide sufficient detail to verify compliance with the test standard 301.4.2 Inspection and identification. The approved agency shall periodically perform an inspection, which shall be in -plant if necessary, of the appliances to be labeled The inspection shall verify that the labeled appli- ances are representative of the appliances tested 301.4.2.1 Independent. The agency to be approved shall be objective and competent To confirm its objec- tivity, the agency shall disclose all possible conflicts of interest 301.4.2.2 Equipment. An approved agency shall have adequate equipment to perform all required tests The equipment shall be periodically calibrated 301.4.2.3 Personnel. An approved agency shall employ experienced personnel educated in conducting, supervising and evaluating tests 301.5 Label information. A permanent factory -applied nameplate(s) shall be affixed to appliances on which shall appear in legible lettering, the manufacturer's name or trade- mark, the model number, serial number and, for fisted appli- ances, the seal or mark of the testing agency A label shall include the hourly rating in British thermal units per hour (Btu/h) (W), the type of fuel approved for use with the appli- ance, and the minimum clearance requirements 301.6 Plumbing connections. Potable water supply and building drainage system connections to appliances regulated by this code shall be in accordance with the International Plumbing Code 301.7 Fuel types. Appliances shall be designed for use with the type of fuel gas that will be supplied to them 301.7.1 Appliance fuel conversion. Appliances shall not be converted to utilize a different fuel gas except where complete instructions for such conversion are provided in the installation instructions, by the serving gas supplier or by the appliance manufacturer 301.8 Vibration isolation. Where means for isolation of vibration of an appliance is installed, an approved means for support and restraint of that appliance shall be provided 301.9 Repair. Defective material or parts shall be replaced or repaired in such a manner so as to preserve the original approval or listing 301.10 Wind resistance. Appliances and supports that are exposed to wind shall be designed and installed to resist the wind pressures determined in accordance with the Interna- honal Building Code [BS] 301.11 Flood hazard. For structures located in flood hazard areas, the appliance, equipment and system mstalla- tions regulated by this code shall be located at or above the elevation required by Section 1612 of the International Building Code for utilities and attendant equipment Exception: The appliance, equipment and system installa- tions regulated by this code are permitted to be located below the elevation required by Section 1612 of the Inter- national Building Code for utilities and attendant equip- ment provided that they are designed and installed to prevent water from entering or accumulating within the components and to resist hydrostatic and hydrodynamic loads and stresses, including the effects of buoyancy, during the occurrence of flooding to such elevation 301.12 Seismic resistance. Where earthquake loads are applicable in accordance with the International Building Code, the supports shall be designed and installed for the seismic forces in accordance with that code 2018 INTERNAT10NAL FUEL GAS CODE® 19 I I 1 I CALFIEIL @ 2017 ICC ALL RIGHTS RESERVED A—LDd by H®Ih¢ Van Dme(hv dme pooch od om),(Dty of FRmdNmod)O[do, Nomb6xlo08170S601JM 15, ZMO oc 51 AM (PET) t to ( Lie Affiee^® Rt, ICC No fwN¢ [TAodomo,, m AtO, Pepeodomo-by any Ot Party o, Axmboema Romsd M glo— ody mpyncg and NyodwgL ARTS Ad ANY UNEARTHED RIVER REICLA VCTION OR DISIRIBITTO N IS A VIOLATION OF THE FEDERAL COPYRIGHT ACT AND THE LICENSE AGREEMENT. AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER GENERAL REGULATIONS 301.13 Ducts. Ducts required for the installation of systems regulated by this code shall be designed and installed in accordance with the International Mechanical Code 301.14 Rodentproofing. Buildings or structures and the walls enclosing habitable or occupiable rooms and spaces in which persons live, sleep or work, or in which feed, food or foodstuffs are stored, prepared, processed, served or sold, shall be constructed to protect against rodents in accordance with the International Building Code 301.15 Prohibited location. The appliances, equipment and systems regulated by this code shall not be located in an ele- vator shaft SECTION 302 (IFGC) STRUCTURAL SAFETY [BS] 302.1 Structural safety. The building shall not be weakened by the installation of any gas piping In the process of installing or repairing any gas piping, the finished floors, walls, ceilings, file work or any other part of the building or premises that is required to be changed or replaced shall be left in a safe structural condition in accordance with the requirements of the International Building Code [BF] 302.2 Penetrations of floor/ceiling assemblies and fire -resistance -rated assemblies. Penetrations of floor/ceil- ing assemblies and assemblies required to have a fire -resis- tance rating shall be protected in accordance with the International Building Code [BS] 302.3 Cutting, notching and boring in wood mem- bers. The cutting, notching and boring of wood members shall comply with Sections 302 3 1 through 302 3 4 [BS] 302.3.1 Engineered wood products. Cuts, notches and holes bored in trusses, structural composite lumber, structural glued -laminated members and I -joists are pro- hibited except where permitted by the manufacturer's rec- ommendations or where the effects of such alterations are specifically considered in the design of the member by a registered design professional [BS] 302.3.2 Joist notching and boring. Notching at the ends of joists shall not exceed one-fourth the joist depth Holes bored in joists shall not be within 2 inches (51 mm) of the top and bottom of the joist and their diameters shall not exceed one -thud the depth of the member Notches in the top or bottom of the joist shall not exceed one -sixth the depth and shall not be located in the middle one-third of the span [BS] 302.3.3 Stud cutting and notching. In exterior walls and bearing partitions, any wood stud is permitted to be cut or notched to a depth not exceeding 25 percent of its width Cutting or notclung of studs to a depth not greater than 40 percent of the width of the stud is permitted in nonload-bearing partitions supporting no loads other than the weight of the partition [BS] 302.3.4 Bored holes. The diameter of bored holes in wood studs shall not exceed 40 percent of the stud depth The diameter of bored holes in wood studs shall not exceed 60 percent of the stud depth in nonbearmg parti- tions The diameter of bored holes in wood studs shall not exceed 60 percent of the stud depth in any wall where each stud is doubled, provided that not more than two such suc- cessive doubled studs are so bored The edge of the bored hole shall be not closer than'/A inch (15 9 mm) to the edge of the stud Bored holes shall not be located at the same section of stud as a cut or notch [BS] 302.4 Alterations to trusses. Truss members and com- ponents shall not be cut, drilled, notched, spliced or otherwise altered in any way without the written concurrence and approval of a registered design professional Alterations resulting in the addition of loads to any member, such as HVAC equipment and water heaters, shall not be permitted without verification that the truss is capable of supporting such additional loading [BS] 302.5 Cutting, notching and boring holes in struc- tural steel framing. The cutting, notching and boring of holes in structural steel framing members shall be as pre- scribed by the registered design professional [BS] 302.6 Cutting, notching and boring holes in cold - formed steel framing. Flanges and lips of load -bearing, cold -formed steel framing members shall not be cut or notched Holes in webs of load -bearing, cold -formed steel framing members shall be permitted along the centerline of the web of the framing member and shall not exceed the dimensional limitations, penetration spacing or minimum hole edge distance as prescribed by the registered design pro- fessional Cutting, notclung and boring holes of steel floor/ roof decking shall be as prescribed by the registered design professional [BS] 302.7 Cutting, notching and boring holes in non- structural cold -formed steel wall framing. Flanges and lips of nonstructural cold -formed steel wall studs shall be penmrt- ted along the centerlme of the web of the framing member, shall not exceed 11/2 inches (38 mm) m width or 4 inches (102 mm) in length, and the holes shall not be spaced less than 24 inches (610 mm) center to center from another hole or less than 10 inches (254 mm) from the bearing end SECTION 303 (IFGC) APPLIANCE LOCATION 303.1 General. Appliances shall be located as required by this section, specific requirements elsewhere in this code and the conditions of the equipment and appliance listing 303.2 Hazardous locations. Appliances shall not be located in a hazardous location unless listed and approved for the specific installation 303.3 Prohibited locations. Appliances shall not be located in sleeping rooms, bathrooms, toilet rooms, storage closets or surgical rooms, or in a space that opens only into such rooms or spaces, except where the installation complies with one of the following 1 The appliance is a direct -vent appliance installed in accordance with the conditions of the listing and the manufacturer's instructions 2 Vented room heaters, wall furnaces, vented decorative appliances, vented gas fireplaces, vented gas fireplace heaters and decorative appliances for installation in vented solid fuel -burning fireplaces are installed in rooms that meet the required volume criteria of Section 3045 3 A single wall -mounted unvented room heater is installed in a bathroom and such invented room heater is equipped as specified in Section 6216 and has an input rating not greater than 6,000 Bta/h (1 76 kW) 20 2018 INTERNATIONAL FUEL GAS CODE® I CopyngbtOo2.017 ICC ALL RIGHTS RESERVED A—LDd by H®Ih¢ Van DmA(Rvdme Oo,dA od om),(Dty of FRmdNmod)O[do,N=b6xlo08170S601JM 15. ZMO oc 51 AM (GET) Mt,mmt to S I ( 1 TITIRR 1, Ag,'^Rt, ICC No otths TAodomoo. m AtOy goodomo- by any Ot Party o[ AAmboemd,Oo[vsd Mgle —ooly oTymg and Nyodwg GMIRISAd ANY VNAVTHO OLDER PRO RED VCIION OR D ISIRIEVTION IS VIOLATION OP THE FEDERAL COPYRIGHT 11 AND THE LICENSE A G RE EM ENT. AND REJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER GENERAL REGULATIONS The bathroom shall meet the required volume criteria of Section 304 5 4 A single wall -mounted invented room heater is installed in a bedroom and such invented room heater is equipped as specified in Section 621 6 and has an input rating not greater than 10,000 Bta/h (2 93 kW) The bedroom shall meet the required volume criteria of Section 304 5 5 The appliance is installed in a room or space that opens only into a bedroom or bathroom, and such room or space is used for no other purpose and is provided with a solid weather-stripped door equipped with an approved self -closing device Combustion air shall be taken directly from the outdoors in accordance with Section 304 6 6 A clothes dryer is installed in a residential bathroom or toilet room having a permanent opening with an area of not less than 100 square inches (0 06 m') that commu- nicates with a space outside of a sleeping room, bath- room, toilet room or storage closet 303.3.1 Fireplaces and decorative appliances in Group I-2, Condition 2 occupancies. Gas fireplace appliances and decorative gas appliances shall be prolubited in Group I-2, Condition 2 occupancies except where such appli- ances are direct -vent appliances installed in public lobby and waiting areas that are not within smoke compartments containing patient sleeping areas The appliance controls shall be located where they can be accessed only by facil- ity staff Such fireplaces shall comply with Sections 501 2 and 604 1 and Section 915 of the International Fire Code 303.4 Protection from vehicle impact damage. Appliances shall not be installed in a location subject to vehicle impact damage except where protected by an approved means 303.5 Indoor locations. Furnaces and boilers installed in closets and alcoves shall be listed for such installation 303.6 Outdoor locations. Appliances installed in outdoor locations shall be either listed for outdoor installation or pro- vided with protection from outdoor environmental factors that influence the operability, durability and safety of the appliances 303.7 Pit locations. Appliances installed in pits or excava- tions shall not come in direct contact with the surrounding soil The sides of the pit or excavation shall be held back not less than 12 inches (305 mm) from the appliance Where the depth exceeds 12 inches (305 mm) below adjoining grade, the walls of the pit or excavation shall be lined with concrete or masonry, such concrete or masonry shall extend not less than 4 inches (102 mm) above adjoJning grade and shall have suf- ficient lateral load -bearing capacity to resist collapse The appliance shall be protected from flooding in an approved manner SECTION 304 (IFGS) COMBUSTION, VENTILATION AND DILUTION AIR 304.1 General. Air for combustion, ventilation and dilution of flue gases for appliances installed in buildings shall be pro- vided by application of one of the methods prescribed in Sec- tions 304 5 through 304 9 Where the requirements of Section 304 5 are not met, outdoor air shall be introduced in accor- dance with one of the methods prescribed in Sections 304 6 through 304 9 Direct -vent appliances, gas appliances of other than natural draft design, vented gas appliances not des- ignated as Category I and appliances equipped with power burners shall be provided with combustion, ventilation and dilution air in accordance with the appliance manufacturer's instructions Exception: Type 1 clothes dryers that are provided with makeup air in accordance with Section 614 6 304.2 Appliance location. Appliances shall be located so as not to interfere with proper circulation of combustion, venti- lation and dilution au 304.3 Draft hood/regulator location. Where used, a draft hood or a barometric draft regulator shall be installed in the same room or enclosure as the appliance served to prevent any difference in pressure between the hood or regulator and the combustion air supply 304.4 Makeup air provisions. Where exhaust fans, clothes dryers and kitchen ventilation systems interfere with the operation of appliances, makeup air shall be provided 304.5 Indoor combustion air. The required volume of indoor au shall be determmed in accordance with Section 304 5 1 or 304 5 2, except that where the air infiltration rate is known to be less than 0 40 air changes per hour (ACH), Sec- tion 304 5 2 shall be used The total required volume shall be the sum of the required volume calculated for all appliances located within the space Rooms commumcating directly with the space in which the appliances are installed through open- ings not furnished with doors, and through combustion air openings sized and located in accordance with Section 304 5 3, are considered to be part of the required volume 304.5.1 Standard method. The mimmum required vol- ume shall be 50 cubic feet per 1,000 Bta/h (4 8 m'/kW) of the appliance input rating 304.5.2 Known air -infiltration -rate method. Where the air infiltration rate of a structure is known, the minimum required volume shall be determmed as follows For appliances other than fan -assisted, calculate vol- ume using Equation 3-1 Required Volume,,,,,,>_ 21 fl3 IG=ng• ACH 1,000 Btu h (Equation 3-1) For fan -assisted appliances, calculate volume using Equation 3-2 Required Volume > 15 ft3 ( IfG„ t°" — ACH 1,000 Btu h (Equation 3-2) where Itt�r = All appliances other than fan assisted (input in Btu/h) Its, = Fan -assisted appliance (input in Btu/h) ACH = Air change per hour (percent of volume of space exchanged per hour, expressed as a decimal) 2018 INTERNATIONAL FUEL GAS CODE® 21 I I 1 I CALFIEIL @ 2017 ICC ALL RIGHTS RESERVED A—LDd by H®Ih¢ Van Dme(Rv dme Oo,dv od om),(QtyofRo,dNmod)O,do,N=b¢x1 008170S601 JM 15, Z.mo oc 51 AM (PET) LAt,—tto ( Lie Ag,,aRt,ICC NofwN¢[TAod,Ao,,mAtO, good,Ao- by any Ot Party o, Axmboemdm6o dMglo— odyoT,,g and,yodwg LARISAd ANY VNAVTHO RIVER REICLA VCTION OR DISIRIBITTO N IS A VIOLATION OF THE FEDERAL COPYRIGHT ACT AND THE LICENSE AGREEMENT. AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER GENERAL REGULATIONS For purposes of this calculation, an infiltration rate greater than 0 60 ACH shall not be used in Equations 3-1 and 3-2 304.5.3 Indoor opening size and location. Openings used to connect indoor spaces shall be sized and located in accordance with Sections 304 5 3 1 and 304 5 3 2 (see Figure 304 5 3) 304.5.3.1 Combining spaces on the same story. Where combining spaces on the same story, each open- ing shall have a mimmum free area of 1 square inch per 1,000 Btu/h (2200 mmI of the total input rating of all appliances in the space, but not less than 100 square inches (0 06 m) One permanent opening shall com- mence within 12 inches (305 mm) of the top and one permanent opening shall commence within 12 inches (305 mm) of the bottom of the enclosure The mim- mum dimension of air openings shall be not less than 3 inches (76 mm) 304.5.3.2 Combining spaces in different stories. The volumes of spaces in different stories shall be consid- ered to be communicating spaces where such spaces are connected by one or more permanent openings in doors or floors having a total mimmum free area of 2 square inches per 1,000 Btu/h (4402 mmI of total input rating of all appliances 304.6 Outdoor combustion air. Outdoor combustion air shall be provided through opening(s) to the outdoors in accor- dance with Section 304 6 1 or 304 6 2 The minimum dimen- sion of air openings shall be not less than 3 inches (76 mm) 304.6.1 Two -permanent -openings method. Two perma- nent openings, one commencing within 12 inches (305 mm) of the top and one commencing within 12 inches (305 mm) of the bottom of the enclosure, shall be pro- vided The openings shall communicate directly or by /CHIMNEY OR GAS VENT URNACE SHEDWATER 0 FIGURE 304.5.3 ALL AIR FROM INSIDE THE BUILDING (see Section 304.5.3) ducts with the outdoors or spaces that freely communicate with the outdoors Where directly communicating with the outdoors, or where communicating with the outdoors through vertical ducts, each opening shall have a minimum free area of 1 square inch per 4,000 Btu/h (550 mmI of total input rating of all appliances in the enclosure [see Figures 304 6 1(1) and 304 61(2)] CHIMNEY OR GAS VENT- � VENTILATION LOUVERS �,Ai�(EACH END OF ATT IC) UTLET AIR ALTERNATE � fr AIR INLET OPENING TO CF I 1—wLETAIR VENTILATION LOUVERS FOR UNHEATED CRAWL FIGURE 304.6.1(1) ALL AIR FROM OUTDOORS—INLETAIR FROM VENTILATED CRAWL SPACE AND OUTLET AIR TO VENTILATED ATTIC (see Section 304.6.1) u For SI 1 foot— 304 8 min ORGASVENT .ATION LOUVERS END OF ATTIC) AIR FILET AIRDUCT O [ENDS 1 FOOT ABOVE FLOOR] FIGURE 304.6.1(2) ALL AIR FROM OUTDOORS THROUGH VENTILATED ATTIC (see Section 304.6.1) 22 2018 INTERNATIONAL FUEL GAS CODE® Copyaght Oo 2017 ICC ALL RIGHTS RESERVED A—LDd by HDA,, Am DmA (hv dme ho,,IAwood om), (Qty of IFmd—od) OG,, N=b,,*10081vwS6 01JM 15.2@.0 065o AM (POP LA,mmt to S I ( RL—Ag,e^ 'Ath ICC No F Lths pep od,d—, oAtthsodomo- by anytlod Party o, AAmboe®aa6oAvsd Mgle —ooly Wpynog and Nyodwg L-IGISAd ANY VNAVTHO AIDED REPROD VCIION OR DISIRRISIMN IS VIOLATION OF THE PEDERAL COPYRIGHT 11 AND THE LICENSE AGREE. ENT. AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER GENERAL REGULATIONS Where communicating with the outdoors through hori- zontal ducts, each opening shall have a minimum free area of not less than 1 square inch per 2,000 Btu/h (1100 mm/ kW) of total input rating of all appliances in the enclosure [see Figure 304 61(3)] 304.6.2 One -permanent -opening method. One perma- nent opening, commencing within 12 inches (305 mm) of the top of the enclosure, shall be provided The appliance shall have clearances of not less than 1 inch (25 mm) from the sides and back and 6 inches (152 mm) from the front of the appliance The opening shall directly communicate with the outdoors, or through a vertical or horizontal duct, to the outdoors or spaces that freely communicate with the outdoors (see Figure 304 6 2) and shall have a minimum free area of 1 square inch per 3,000 Btu/h (734 mm/kW) of the total input rating of all appliances located in the enclosure and not less than the sum of the areas of all vent connectors in the space 304.7 Combination indoor and outdoor combustion air. The use of a combination of indoor and outdoor combustion air shall be in accordance with Sections 304 7 1 through 30473 304.7.1 Indoor openings. Where used, openings connect- ing the interior spaces shall comply with Section 304 5 3 304.7.2 Outdoor opening location. Outdoor opening(s) shall be located in accordance with Section 304 6 304.7.3 Outdoor opening(s) size. The outdoor opening(s) size shall be calculated in accordance with the following 1 The ratio of interior spaces shall be the available volume of all communicating spaces divided by the required volume 2 The outdoor size reduction factor shall be one mmus the ratio of interior spaces The minimum size of outdoor opening(s) shall be the full size of outdoor opening(s) calculated in accordance with Section 304 6, multiplied by the FIGURE 304.6.1(3) ALL AIR FROM OUTDOORS (see Section 304.6.1) reduction factor The minimum dimension of air openings shall be not less than 3 inches (76 mm) 304.8 Engineered installations. Engineered combustion air installations shall provide an adequate supply of combustion, ventilation and dilution air and shall be approved 304.9 Mechanical combustion air supply. Where all com- bustion air is provided by a mechanical au supply system, the combustion air shall be supplied from the outdoors at a rate not less than 0 35 cubic feet per minute per 1,000 Bta/h (0 034 m'/min per kW) of total input rating of all appliances located within the space 304.9.1 Makeup air. Where exhaust fans are installed, makeup air shall be provided to replace the exhausted au 304.9.2 Appliance interlock. Each of the appliances served shall be interlocked with the mechanical air supply system to prevent main burner operation when the mechanical air supply system is not in operation 304.9.3 Combined combustion air and ventilation air system. Where combustion air is provided by the build- ing's mechanical ventilation system, the system shall pro- vide the specified combustion air rate in addition to the required ventilation au 304.10 Louvers and grilles. The required size of openings for combustion, ventilation and dilution air shall be based on the net free area of each opening Where the free area through a design of louver, grille or screen is known, it shall be used in calculating the size opening required to provide the free area specified Where the design and free area of louvers and grilles are not known, it shall be assumed that wood louvers will have 25-percent free area and metal louvers and grilles will have 75-percent free area Screens shall have a mesh size IENING TERNATE OPENING ,CATION FIGURE 304.6.2 SINGLE COMBUSTION AIR OPENING, ALL AIR FROM THE OUTDOORS (see Section 304.6.2) 2018 INTERNATIONAL FUEL GAS CODE® 23 I 11 1 CoLFIEILOo2.017 ICC ALL RIGHTS RESERVED A—LDd by H®Ih¢ Van DmA(Rvdme Oo,dA od om),(Qty of FRmdNmod)O[do,N=b,,*1008170S601 JM 15. ZMO oc 51 AM (PET) Mt,b,mt to ( LEA Ag,, ^®'^Rt, ICC No fwN¢[TAodomoo.m AtO, Tgoodomo- by any Ot Party oT AAmboemd,Oo[vsd Mglo—ody oTyncg and Nyodwg T,oIRb¢Ad ANY VNAVTHO RIVER REICLA VCTION OR DISIRIBITTO N IS A VIOLATION OF THE FEDERAL COPYRIGHT ACT AND THE LICENSE AGREEMENT. AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER GENERAL REGULATIONS not smaller than'/q inch (6 4 mm) Nonmotorized louvers and grilles shall be fixed in the open position Motorized louvers shall be interlocked with the appliance so that they are proven to be in the full open position prior to main burner ignition and during main burner operation Means shall be provided to prevent the main burner from igniting if the lou- vers fall to open during burner start-up and to shut down the main burner if the louvers close during operation 304.11 Combustion air ducts. Combustion air ducts shall comply with all of the following 1 Ducts shall be constructed of galvanized steel comply - mg with Chapter 6 of the International Mechanical Code or of a material having equivalent corrosion resis- tance, strength and rigidity Exception: Within dwellings units, unobstructed stud and joist spaces shall not be prohibited from conveying combustion air, provided that not more than one required fireblock is removed 2 Ducts shall terminate in an unobstructed space allowing free movement of combustion auto the appliances 3 Ducts shall serve a single enclosure 4 Ducts shall not serve both upper and lower combustion air openings where both such openings are used The separation between ducts serving upper and lower com- bustion air openings shall be maintained to the source of combustion air 5 Ducts shall not be screened where terminating in an attic space 6 Horizontal upper combustion air ducts shall not slope downward toward the source of combustion air 7 The remaining space surrounding a clumney liner, gas vent, special gas vent or plastic piping installed within a masonry, metal or factory -built chimney shall not be used to supply combustion air Exception: Direct -vent gas -fired appliances designed for installation in a solid fuel-burningfire- place where installed in accordance with the manu- facturer's instructions 8 Combustion air intake openings located on the exterior of a building shall have the lowest side of such open- ings located not less than 12 inches (305 mm) vertically from the adjoining finished ground level 304.12 Protection from fumes and gases. Where corrosive or flammable process fumes or gases, other than products of combustion, are present, means for the disposal of such fumes or gases shall be provided Such fumes or gases include carbon monoxide, hydrogen sulfide, ammonia, chlo- rme and halogenated hydrocarbons In barbershops, beauty shops and other facilities where chemicals that generate corrosive or flammable products, such as aerosol sprays, are routinely used, nondirect vent - type appliances shall be located in a mechanical room sepa- rated or partitioned off from other areas with provisions for combustion air and dilution air from the outdoors Direct - vent appliances shall be installed in accordance with the appliance manufacturer's instructions SECTION 305 (IFGC) INSTALLATION 305.1 General. Equipment and appliances shall be installed as required by the terms of their approval, in accordance with the conditions of listing, the manufacturer's instructions and this code Manufacturers' installation instructions shall be available on the job site at the time of inspection Where a code provision is less restrictive than the conditions of the listing of the equipment or appliance or the manufacturer's installation instructions, the conditions of the listing and the manufacturer's installation instructions shall apply Unlisted appliances approved in accordance with Section 301 3 shall be limited to uses recommended by the manufac- turer and shall be installed in accordance with the manufac- turer's instructions, the provisions of this code and the requirements determmed by the code official 305.2 Hazardous area. Equipment and appliances having an ignition source shall not be installed in Group H occupancies or control areas where open use, handling or dispensing of combustible, flammable or explosive materials occurs 305.3 Elevation of ignition source. Equipment and appli- ances having an ignition source shall be elevated such that the source of ignition is not less than 18 inches (457 mm) above the floor in hazardous locations and public garages, private garages, repair garages, motor fuel-dispensmg facili- ties and parking garages For the purpose of this section, rooms or spaces that are not part of the living space of a dwelling unit and that communicate directly with a private garage through openings shall be considered to be part of the private garage Exception: Elevation of the ignition source is not required for appliances that are listed as flammable vapor ignition resistant 305.3.1 (IFGS) Installation in residential garages. In residential garages where appliances are installed in a sep- arate, enclosed space having access only from outside of the garage, such appliances shall be permitted to be installed at floor level, provided that the required combus- tion air is taken from the exterior of the garage 305.3.2 Parking garages. Connection of a parking garage with any room in wluch there is a fuel -fired appliance shall be by means of a vestibule providing a two -doorway separation, except that a single door is permitted where the sources of ignition in the appliance are elevated in accor- dance with Section 305 3 Exception: This section shall not apply to appliance installations complying with Section 305 4 305.4 Public garages. Appliances located in public garages, motor fuel -dispensing facilities, repair garages or other areas frequented by motor vehicles shall be installed not less than 8 feet (2438 mm) above the floor Where motor vehicles are capable of passing under an appliance, the appliance shall be installed at the clearances required by the appliance manufac- turer and not less than 1 foot (305 mm) higher than the tallest vehicle garage door opening Exception: The requirements of this section shall not apply where the appliances are protected from motor velu- 24 2018 INTERNATIONAL FUEL GAS CODE® firi1 I UER CopyngbtOo2.017 ICC ALL RIGHTS RESERVED A—LDd by H®Ih¢ Van DmA(Rvdme Oo,dA od om),(Dty of FRmdNmod)O[do,N=b6xlo08170S601JM 15. ZMO oc 51 AM (GET) mt to S I ( 1, sAg,e^ '^Rt, ICC No otths TAodomoo. m AtOy odomo- by any Ot Party o[ AAmboemd,Oo[vsd Mgle —ooly o,and Nyodwg GMIRISAd ANY VNAVTHO OLDER REPROD VCIION OR D ISIRIEVTION IS VIOLATION OP THE FEDERAL COPYRIGHT 11 AND THE LICENSE AGREEME NT. AND REJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER GENERAL REGULATIONS cle impact and installed in accordance with Section 305 3 and NFPA 30A 305.5 Private garages. Appliances located in private garages shall be installed with a minimum clearance of 6 feet (1829 mm) above the floor Exception: The requirements of this section shall not apply where the appliances are protected from motor vehi- cle impact and installed in accordance with Section 305 3 305.6 Construction and protection. Boller rooms and fur- nace rooms shall be protected as required by the International Building Code 305.7 Clearances from grade. Equipment and appliances installed at grade level shall be supported on a level concrete slab or other approved material extending not less than 3 inches (76 mm) above adjoining grade or shall be suspended not less than 6 inches (152 mm) above adjoining grade Such supports shall be installed in accordance with the manufac- turer's instructions 305.8 Clearances to combustible construction. Heat -pro- ducing equipment and appliances shall be installed to main- tain the required clearances to combustible construction as specified in the listing and manufacturer's instructions Such clearances shall be reduced only in accordance with Section 308 Clearances to combustibles shall include such consider- ations as door swing, drawer pull, overhead projections or shelving and window swing Devices, such as door stops or limits and closers, shall not be used to provide the required clearances 305.9 (IFGS) Parking structures. Appliances installed in enclosed, basement and underground parking structures shall be installed in accordance with NFPA 88A 305.10 (IFGS) Repair garages. Appliances installed in repair garages shall be installed in accordance with NFPA 30A 305.11 (IFGS) Installation in aircraft hangars. Heaters in aircraft hangars shall be installed in accordance with NFPA 409 305.12 (IFGS) Avoid strain on gas piping. Appliances shall be supported and connected to the piping so as not to exert undue strain on the connections SECTION 306 (IFGC) ACCESS AND SERVICE SPACE [MJ 306.1 Access for maintenance and replacement Appliances, control devices, heat exchangers and HVAC components that utilize energy shall be accessible for mspec- tion, service, repair and replacement without disabling the function of a fire -resistance -rated assembly or removing per- manent construction, other appliances, or any other piping or ducts not connected to the appliance being inspected, ser- viced, repaired or replaced A level working space not less than 30 inches (762 mm) deep and 30 inches (762 mm) wide shall be provided in front of the control side to service an appliance [MJ 306.2 Appliances in rooms. Rooms containing appli- ances shall be provided with a door and an unobstructed pas- sageway measuring not less than 36 inches (914 mm) wide and 80 inches (2032 mm) high Exception: Within a dwelling unit, appliances installed in a compartment, alcove, basement or similar space shall be provided with access by an opening or door and an unob- structed passageway measuring not less than 24 inches (610 mm) wide and large enough to allow removal of the largest appliance in the space, provided that a level service space of not less than 30 inches (762 mm) deep and the height of the appliance, but not less than 30 inches (762 mm), is present at the front or service side of the appliance with the door open [MJ 306.3 Appliances in attics. Attics containing appliances shall be provided with an opening and unobstructed passage- way large enough to allow removal of the largest appliance The passageway shall be not less than 30 inches (762 mm) high and 22 inches (559 mm) wide and not more than 20 feet (6096 mm) in length measured along the centerline of the passageway from the opening to the appliance The passage- way shall have continuous solid flooring not less than 24 inches (610 mm) wide A level service space not less than 30 inches (762 mm) deep and 30 inches (762 mm) wide shall be present at the front or service side of the appliance The clear access opening dimensions shall be not less than 20 inches by 30 inches (508 mm by 762 mm) and large enough to allow removal of the largest appliance Exceptions: 1 The passageway and level service space are not required where the appliance is capable of being serviced and removed through the required opening 2 Where the passageway is not less than 6 feet (1829 mm) high for its entire length, the passageway shall be not greater than 50 feet (15 250 mm) in length [M] 306.3.1 Electrical requirements. A lummaire con- trolled by a switch located at the required passageway opening and a receptacle outlet shall be provided at or near the appliance location in accordance with NFPA 70 [MJ 306.4 Appliances under floors. Under -floor spaces con- taining appliances shall be provided with an access opening and unobstructed passageway large enough to remove the largest appliance The passageway shall be not less than 30 inches (762 mm) high and 22 inches (559 mm) wide, nor more than 20 feet (6096 mm) in length measured along the centerline of the passageway from the opening to the appli- ance A level service space not less than 30 inches (762 mm) deep and 30 inches (762 mm) wide shall be present at the front or service side of the appliance If the depth of the pas- sageway or the service space exceeds 12 inches (305 mm) below the adjoining grade, the walls of the passageway shall be lined with concrete or masonry extending 4 inches (102 mm) above the adjoining grade and having sufficient lateral - hearing capacity to resist collapse The clear access opening dimensions shall be not less than 22 inches by 30 inches (559 mm by 762 mm), and large enough to allow removal of the largest appliance Exceptions: 1 The passageway is not required where the level ser- vice space is present when the access is open and the 2018 INTERNATIONAL FUEL GAS CODE® 25 I I 1 I CITFIght @ 2017 ICC ALL RIGHTS RESERVED A—LDd by H®Ih¢ Van Dme(Rv dme pooch od om),(Dty of FRmdNmod)O[do, Nomb6xlo08170S601JM 15. ZMO oc 51 AM (PET) t to ( Lie Affiee^® Rt, ICC No fwN¢[TAodomoo.m AtO,Pepeodomo- by any Ot Party o, Axmboemdm6o d Mglo—ody mpyncg and Nyodwg LARISAd ANY VNAVTHO RIVER REICLA VCTION OR DISIRIBITTO N IS A VIOLATION OF THE FEDERAL COPYRIGHT ACT AND THE LICENSE AGREEMENT. AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER GENERAL REGULATIONS appliance is capable of being serviced and removed through the required opening 2 Where the passageway is not less than 6 feet high (1829 mm) for its entire length, the passageway shall not be limited in length [M] 306.4.1 Electrical requirements. A lummaire con- trolled by a switch located at the required passageway opening and a receptacle outlet shall be provided at or near the appliance location in accordance with NFPA 70 [M] 306.5 Equipment and appliances on roofs or elevated structures. Where equipment requiring access or appliances are located on an elevated structure or the roof of a building such that personnel will have to climb higher than 16 feet (4877 mm) above grade to access such equipment or appli- ances, an interior or exterior means of access shall be pro- vided Such access shall not require climbing over obstructions greater than 30 inches (762 mm) in height or walking on roofs having a slope greater than 4 units vertical in 12 units horizontal (33-percent slope) Such access shall not require the use of portable ladders Permanent ladders installed to provide the required access shall comply with the following minimum design criteria 1 The side railing shall extend above the parapet or roof edge not less than 30 inches (762 mm) 2 Ladders shall have rung spacing not to exceed 14 inches (356 mm) on center The upper -most rung shall be not more than 24 inches (610 mm) below the upper edge of the roof hatch, roof or parapet, as applicable 3 Ladders shall have a toe spacing not less than 6 inches (152 mm) deep 4 There shall be not less than 18 inches (457 mm) between rails 5 Rungs shall have a diameter not less than 075-mch (19 mm) and be capable of withstanding a 300-pound (1361 kg) load 6 Ladders over 30 feet (9144 mm) in height shall be pro- vided with offset sections and landings capable of with- standing 100 pounds per square foot (488 2 kg/m ) Landing dimensions shall be not less than 18 inches (457 mm) and not less than the width of the ladder served A guard rail shall be provided on all open sides of the landing 7 Climbing clearance The distance from the centerline of the rungs to the nearest permanent object on the climbing side of the ladder shall be not less than 30 inches (762 mm) measured perpendicular to the rungs Tlus distance shall be maintained from the point of ladder access to the bottom of the roof hatch A minimum clear width of 15 inches (381 mm) shall be provided on both sides of the ladder measured from the midpoint of and parallel with the rungs, except where cages or wells are installed 8 Landing required The ladder shall be provided with a clear and unobstructed bottom landing area having a minimum dimension of 30 inches by 30 inches (762 mm by 762 mm) centered in front of the ladder 9 Ladders shall be protected against corrosion by approved means 10 Access to ladders shall be provided at all times Catwalks installed to provide the required access shall be not less than 24 inches (610 mm) wide and shall have railings as required for service platforms Exception: This section shall not apply to Group R-3 occupancies [M] 306.5.1 Sloped roofs. Where appliances, equipment, fans or other components that require service are installed on a roof having a slope of 3 units vertical in 12 units hor- izontal (25-percent slope) or greater and having an edge more than 30 inches (762 mm) above grade at such edge, a level platform shall be provided on each side of the appli- ance or equipment to which access is required for service, repair or maintenance The platform shall be not less than 30 inches (762 mm) in any dimension and shall be pro- vided with guards The guards shall extend not less than 42 inches (1067 mm) above the platform, shall be con- structed so as to prevent the passage of a 21-inch-diameter (533 mm) sphere and shall comply with the loading requirements for guards specified in the International Building Code Access shall not require walking on roofs having a slope greater than 4 units vertical in 12 units hor- izontal (33-percent slope) Where access involves obstruc- tions greater than 30 inches (762 mm) in height, such obstructions shall be provided with ladders installed in accordance with Section 306 5 or stairways installed in accordance with the requirements specified in the Intema- tional Building Code in the path of travel to and from appliances, fans or equipment requiring service [M] 306.5.2 Electrical requirements. A receptacle outlet shall be provided at or near the appliance location in accordance with NFPA 70 [M] 306.6 Guards. Guards shall be provided where various components that require service and roof hatch openings are located within 10 feet (3048 mm) of a roof edge or open side of a walking surface and such edge or open side is located more than 30 inches (762 mm) above the floor, roof, or grade below The guard shall extend not less than 30 inches (762 mm) beyond each end of components that require service The top of the guard shall be located not less than 42 inches (1067 mm) above the elevated surface adjacent to the guard The guard shall be constructed so as to prevent the passage of a 21-inch-diameter (533 mm) sphere and shall comply with the loading requirements for guards specified in the Intema- tional Building Code Exception: Guards are not required where permanent fall arrest/restraint anchorage connector devices that comply with ANSUASSE Z 359 1 are affixed for use during the entire lifetime of the roof covering The devices shall be reevaluated for possible replacement when the entire roof covering is replaced The devices shall be placed not more than 10 feet (3048 mm) on center along hip and ridge Imes and placed not less than 10 feet (3048 mm) from roof edges and the open sides of walking surfaces 26 2018 INTERNATIONAL FUEL GAS CODE® 11 1 CopyngbtOo2.017 ICC ALL RIGHTS RESERVED A—LDd by H®Ih¢ Van DmA(Rvdme Oo,dA od om),(Dty of FRmdNmod)O[do,N=b,,*1008170S601 JM 15. ZMO 0651 AM (PET) mt to S I (fiTER 1, sAg,e^ '^Rt, ICC No otths TAodomoo. m AtOy odomo- by any Ot Party o[ AAmboemd,Oo[vsd Mgle —ooly o,and Nyodwg GMIRISAd ANY VNAVTHO OLDER REPROD ,,MN OR D ISIRIEVTION IS VIOLATION OP THE FEDERAL COPYRIGHT 11 AND THE LICENSE AGRE EM ENT. AND REJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER GENERAL REGULATIONS SECTION 307 (IFGC) CONDENSATE DISPOSAL 307.1 Evaporators and cooling coils. Condensate drainage systems shall be provided for equipment and appliances con- taining evaporators and cooling coils in accordance with the International Mechanical Code. 307.2 Fuel -burning appliances. Liquid combustion by- products of condensing appliances shall be collected and dis- charged to an approved plumbing fixture or disposal area in accordance with the manufacturer's instructions Condensate piping shall be of approved corrosion -resistant material and shall be not smaller than the dram connection on the appli- ance Such piping shall maintain a minimum slope in the direction of discharge of not less than one -eighth unit vertical in 12 units horizontal (1-percent slope) [M] 307.3 Drain pipe materials and sizes. Components of the condensate disposal system shall be cast iron, galvanized steel, copper, cross -linked polyethylene, polyethylene, ABS, CPVC PVC or polypropylene pipe or tubing Components shall be selected for the pressure and temperature rating of the installation Joints and connections shall be made in accordance with the applicable provisions of Chapter 7 of the International Plumbing Code relative to the material type Condensate waste and dram line size shall be not less than '/q inch (19 mm) internal diameter and shall not decrease in size from the dram pan connection to the place of condensate dis- posal Where the dram pipes from more than one unit are manifolded together for condensate drainage, the pipe or tub- ing shall be sized in accordance with an approved method 307.4 Traps. Condensate drams shall be trapped as required by the equipment or appliance manufacturer 307.5 Auxiliary drain pan. Category IV condensing appli- ances shall be provided with an auxiliary dram pan where damage to any building component will occur as a result of stoppage in the condensate drainage system Such pan shall be installed in accordance with the applicable provisions of Section 307 of the International Mechanical Code. Exception: An auxiliary dram pan shall not be required for appliances that automatically shut down operation in the event of a stoppage in the condensate drainage system 307.6 Condensate pumps. Condensate pumps located in uninhabitable spaces, such as attics and crawl spaces, shall be connected to the appliance or equipment served such that when the pump falls, the appliance or equipment will be pre- vented from operating Pumps shall be installed in accor- dance with the manufacturer's instructions SECTION 308 (IFGS) CLEARANCE REDUCTION 308.1 Scope. This section shall govern the reduction in required clearances to combustible materials, including gyp- sum board, and combustible assemblies for chimneys, vents, appliances, devices and equipment Clearance requirements for air-conditioning equipment and central heating boilers and furnaces shall comply with Sections 308 3 and 308 4 308.2 Reduction table. The allowable clearance reduction shall be based on one of the methods specified in Table 308 2 or shall utilize a reduced clearance protective assembly listed and labeled in accordance with UL 1618 Where required clearances are not listed in Table 308 2, the reduced clear- ances shall be determined by linear interpolation between the distances listed in the table Reduced clearances shall not be derived by extrapolation below the range of the table The reduction of the required clearances to combustibles for listed and labeled appliances and equipment shall be in accordance with the requirements of this section, except that such clear- ances shall not be reduced where reduction is specifically prohibited by the terms of the appliance or equipment listing [see Figures 308 2(1) through 308 2(3)] 308.3 Clearances for indoor air-conditioning appliances. Clearance requirements for indoor air-conditioning appli- ances shall comply with Sections 308 3 1 through 308 3 4 308.3.1 Appliance clearances. Air-conditioning appli- ances shall be installed with clearances in accordance with the manufacturer's instructions 308.3.2 Clearance reduction. Au -conditioning appli- ances shall be permitted to be installed with reduced clear- ances to combustible material, provided that the combustible material or appliance is protected as described in Table 308 2 and such reduction is allowed by the manufacturer's instructions 308.3.3 Plenum clearances. Where the furnace plenum is adjacent to plaster on metal lath or noncombustible mate- nal attached to combustible material, the clearance shall be measured to the surface of the plaster or other noncom- bustible finish where the clearance specified is 2 inches (51 mm) or less 308.3.4 Clearance from supply ducts. Supply air ducts connecting to listed central heating furnaces shall have the same minimum clearance to combustibles as required for the furnace supply plenum for a distance of not less than 3 feet (914 mm) from the supply plenum Clearance is not required beyond the 3-foot (914 mm) distance 308.4 Central -heating boilers and furnaces. Clearance requirements for central -heating boilers and furnaces shall comply with Sections 308 4 1 through 308 4 5 The clearance to these appliances shall not interfere with combustion air, draft hood clearance and relief, and accessibility for servic- ing 308.4.1 Appliance clearances. Central -heating furnaces and low-pressure boilers shall be installed with clearances in accordance with the manufacturer's instructions 308.4.2 Clearance reduction. Central -heating furnaces and low-pressure boilers shall be permitted to be installed with reduced clearances to combustible material provided that the combustible material or appliance is protected as described in Table 308 2 and such reduction is allowed by the manufacturer's instructions 308.4.3 Clearance for servicing appliances. Front clear- ance shall be sufficient for servicing the burner and the furnace or boiler 308.4.4 Plenum clearances. Where the furnace plenum is adjacent to plaster on metal lath or noncombustible mate- nal attached to combustible material, the clearance shall be measured to the surface of the plaster or other noncom- 2018 INTERNATIONAL FUEL GAS CODE® 27 I I 1 I CALFIEIL @ 2017 ICC ALL RIGHTS RESERVED A—LDd by H®Ih¢ Van Dme(Rv dme pooch od om),(Dty of FRmdNmod)O[do, Nomb6xlo08170S601JM 15. ZMO oc 51 AM (PET) t to ( Lie Affiee^® Rt, ICC No fwN¢[TAodomoo.m AtO,Pepeodomo- by any Ot Party o, Axmboemdm6o d Mglo—ody mpyncg and Nyodwg LARISAd ANY VNAVTHO RIVER REICLA VCTION OR DISIRIBITTO N IS A VIOLATION OF THE FEDERAL COPYRIGHT ACT AND THE LICENSE AGREEMENT. AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER GENERAL REGULATIONS bustible finish where the clearance specified is 2 inches (51 mm) or less 308.4.5 Clearance from supply ducts. Supply air ducts connecting to listed central heating furnaces shall have the same mmimum clearance to combustibles as required for the furnace supply plenum for a distance of not less than 3 feet (914 mm) from the supply plenum Clearance is not required beyond the 3-foot (914 mm) distance SECTION 309 (IFGC) ELECTRICAL 309.1 Grounding. Gas piping shall not be used as a ground- ing electrode 309.2 Connections. Electrical connections between appli- ances and the building wiring, including the grounding of the appliances, shall conform to NFPA 70 SECTION 310 (IFGS) ELECTRICAL BONDING 310.1 Pipe and tubing other than CSST. Each above- ground portion of a gas piping system other than corrugated stainless steel tubing (CSST) that is likely to become ener- gized shall be electrically continuous and bonded to an effec- tive ground -fault current path Gas piping other than CSST shall be considered to be bonded where it is connected to an appliance that is connected to the equipment grounding con- ductor of the circuit that supplies that appliance TABLE 308.211111ugh" REDUCTION OF CLEARANCES WITH SPECIFIED FORMS OF PROTECTION WHERE THE REQUIRED CLEARANCE WITH NO PROTECTION FROM APPLIANCE, VENT CONNECTOR OR SINGLE -WALL METAL PIPE IS: (inches) TYPE OF PROTECTION APPLIED TO 36 118 112 1 9 6 Allowable clearances with specified protection (inches) AND COVERING ALL SURFACES OF COMBUSTIBLE MATERIAL WITHIN THE DISTANCE SPECIFIED AS THE Use Column 1 for clearances above appliance or horizontal connector. Use Column 2 REQUIRED CLEARANCE WITH NO PROTECTION for clearances from appliance, vertical connector and single -wall metal pipe. [see Figures 308.2(1), 308.2(2) and 308.2(3)] Above Sides Above Sides Above Sides Above Sides Aboveantl Sides Col.1 and rear Col. antlrear Col. and rear Col. rear Col. and rear Col.2 Col.2 Col.2 Col.2 Col.2 1 31/2-inch-duck masonry wall without ventilated 24 12 9 6 5 airspace 2 1/2-inch insulation board over 1-inch glass fiber or mineral wool baits 24 18 12 9 9 6 6 5 4 3 3 0 024-inch (nominal 24 gage) sheet metal over 1-inch glass fiber or mineral wool baits reinforced with wire 18 12 9 6 6 4 5 3 3 3 on rear face with ventilated airspace 4 31/2-inch-truck masonry wall with ventilated airspace 12 6 6 6 6 5 0 024-inch (nominal 24 gage) sheet metal with ventilated airspace 18 12 9 6 6 4 5 3 3 2 6 1/2-inch-duck insulation board with ventilated 18 12 9 6 6 4 5 3 3 3 airspace 7 0 024-inch (nominal 24 gage) sheet metal with ventilated airspace over 0 024-inch (nominal 24 gage) 18 12 9 6 6 4 5 3 3 3 sheet metal with ventilated airspace 8 1-inch glass fiber or mineral wool baits sandwiched between two sheets 0 024-inch (nominal 24 gage) 18 12 9 6 6 4 5 3 3 3 sheet metal with ventilated airspace For SI 1 inch = 25 4 mm, °C= [(OF) - 32]/1 8, 1 pound per cubic foot= 16 02 kg/m', 1 Btu per inch per square foot per hour per OF= 0 144 W/m' • K a Reduction of clearances from combustible materials shall not interfere with combustion air, draft hood clearance and relief, and accessibility of servicing b Clearances shall be measured from the outer surface of the combustible material to the nearest point on the surface of the appliance, disregarding any intervening protection applied to the combustible material c Spacers and ties shall be of noncombustible material No spacer or tie shall be used directly opposite an appliance or connector d For all clearance reduction systems using a ventilated airspace, adequate provision for air circulation shall be provided as described [see Figures 308 2(2) and 308 2(3)] e There shall be not less than 1 inch between clearance reduction systems and combustible walls and ceilings for reduction systems using ventilated airspace f Where a wall protector is mounted on a single flat wall away from comers, it shall have a minimum 1-inch air gap To provide air circulation, the bottom and top edges, or only the side and top edges, or all edges shall be left open g Mineral wool baits (blanket or board) shall have a minimum density of 8 pounds per cubic foot and a minimum melting point of 1500OF It Insulation material used as part of a clearance reduction system shall have a thermal conductivity of 10 Btu per inch per square foot per hour per OF or less i There shall be not less than 1 inch between the appliance and the protector In no case shall the clearance between the appliance and the combustible surface be reduced below that allowed in this table l Clearances and thicknesses are minimum, larger clearances and thicknesses are acceptable k Listed single -wall connectors shall be installed in accordance with the manufacturer's instructions 28 2018 INTERNATIONAL FUEL GAS CODE® 1 (Arynght OO?.o,7 ICC ALL RIGHTS RESERVED A—LDd by H®Ih¢ Van DmA(Rv dme Oo,dA od om),(Qty of FRmdNmod)O[do, Nomb,,*10081700501 JM 15, ZMO oc 5o AM (PET) mt to S I ( I I I RR 1, sAg,e^ '^Rt, ICC Nootths TTAodomo,,m AtOy Tepeodomo-by any Ot Party o,AAmboema Romsd Mglo— o,IAo, and Nyodwg G-LOSAd ANY VNAVTHO OLDER REPROD VCIION OR D ISIRIEUTION IS VIOLATION OP THE FED REAL COPYRIGHT 11 AND THE LICENSE AGREEMEoff . AND REJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER M;1011=INe1aN*ia1welIIQ01 W 100817036 CONSTRUCTION USING COMBUSTIBLE — MATERIAL, PLASTERED OR UNPLASTERED ED Q C GAS EQUIPMENT OR VENT CONNECTOR 1-INCH MINIMUM AIRSPACE SETWE MASONRYAND COMBUSTIBLE W, .INCH NON BRICK WAL SHEET METAL BOTTOM AND TO OF BRICKS STAG OR OTHER FOR VENRLATIOI PROTECTION A STRIP OF HEAVY -GAGE USED FOR ADDED SUPP( NOTE DONOTPLACEMA WALL TIES DIRECTLY BEF APPLIANCE OR CONNECT A = the clearance with no protection. B = the reduced clearance permitted in accordance with Table 308.2. The protection applied to the construction using combustible material shall extend far enough in each direction to make "C" equal to "A For SL 1 inch = 25.4 turn. FIGURE 308.2(1) EXTENT OF PROTECTION NECESSARY TO REDUCE CLEARANCES FROM APPLIANCE OR VENT CONNECTIONS MOUNTED WITH SIDE AND TOP EDGES OPEN WALL PROTECTOR MOUNTED WITH ALL EDGES OPEN � r WALL PROTECTOR INSTALLED IN CORNER For SL 1 inch = 25.4 turn. MOUNTED WITH TOP AND BOTTOM EDGES OPEN WALL PROTECTOR MOUNTED ON SINGLE FLAT WALL MUST BE MOUNTED WITH TOP AND BOTTOM EDGESOPEN JALL CORRUGATED METAL WALL TIES MASONRY WALL T�;p FIGURE 308.2(3) MASONRY CLEARANCE REDUCTION SYSTEM NAIL OR SCREW ANCHOR CLEARANCE REDUCTION SYSTEM 1-INCH NONCOMBUSTIBLE SPACER SUCH AS STACKED WASHERS, SMALL - DIAMETER PIPE, TUBING OR ELECTRICAL CONDUIT. MASONRY WALLS CAN BE ATTACHED TO COMBUSTIBLE WALLS USING WALL TIES. DO NOT USE SPACERS DIRECTLY BEHIND APPLIANCE OR CONNECTOR. FIGURE 308.2(2) WALL PROTECTOR CLEARANCE REDUCTION SYSTEM 2018 INTERNATIONAL FUEL GAS CODE° 29 Copy,ght @ 201T ICC ALL RIGHTS RESERVED A... s,d by H,athe, Va. Dme (h,-v h.e@fnevd—ood com), (C,E of F,Ov ood) O,de, Nu be 100819o36 ov Jav ls, ww o5 so AM (PST) pug —t to Lmevse Ag... m t w th ICC No fu,the reproducttov, vo fu,th,,,,producttovs by a.y th�,d pa,ry, o, d�smbutto. a.tho,.,d Smgl—, ovly, pymg a d vecwodavg proh�]At,a ANY UNAUTHORIZED REPRODUCTION OR DISTRIBUTION IS A VIOLATION OF THE FEDERAL COPYRIGHT ACT AND THE LICENSE AGREEMENT, AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER GENERAL REGULATIONS 310.2 CSST. This section applies to corrugated stainless steel tubing (CSST) that is not listed with an arc -resistant jacket or coating system in accordance with ANSI LC 1/CSA 626 CSST gas piping systems and piping systems containing one or more segments of CSST shall be electrically continuous and bonded to the electrical service grounding electrode sys- tem or, where provided, the lightning protection grounding electrode system 310.2.1 Point of connection. The bonding jumper shall connect to a metallic pipe, pipe fitting or CSST fitting 310.2.2 Size and material of jumper. The bonding jumper shall be not smaller than 6 AWG copper wire or equivalent 310.2.3 Bonding jumper length. The length of the bond- ing jumper between the connection to a gas piping system and the connection to a grounding electrode system shall not exceed 75 feet (22 860 mm) Any additional grounding electrodes installed to meet this requirement shall be bonded to the electrical service grounding electrode sys- tem or, where provided, the lightning protection grounding electrode system 310.2.4 Bonding connections. Bonding connections shall be in accordance with NFPA 70 310.2.5 Connection devices. Devices used for making the bonding connections shall be listed for the application in accordance with UL 467 310.3 Arc -resistant CSST. This section applies to corru- gated stainless steel tubing (CSST) that is listed with an arc - resistant jacket or coating system in accordance with ANSI LC 1/CSA 626 The CSST shall be electrically continuous and bonded to an effective ground fault current path Where any CSST component of a piping system does not have an arc -resistant jacket or coating system, the bonding require- ments of Section 310 2 shall apply Arc -resistant -jacketed CSST shall be considered to be bonded where it is connected to an appliance that is connected to the appliance grounding conductor of the circuit that supplies that appliance 30 2018 INTERNATIONAL FUEL GAS CODE® 11 1 CopyngbtOo2.017 ICC ALL RIGHTS RESERVED A—LDd by H®Ih¢ Van Dme(Rvdme pooch od om),(Dty of FRmdNmod)O[do,N=b,,*1008170S601 JM 15. ZMO oc 51 AM (GET) mt to S I ( ITHR 1, xAg,e^ '^Rt, ICC No otths TAodomoo. m AtOy odomo- by any Ot Party o[ Axmboemd,Oo[vsd Mgle—ooly o,and Nyodwg GMIRISed ANY VNAVTHO OLDER REPROD ,,MN OR D ISIRIEVTION IS VIOLATION OP THE FEDERAL COPYRIGHT 11 AND THE LICENSE AGRE EM ENT. AND REJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER CHAPTER 4 GAS PIPING INSTALLATIONS User note: About this chapter., Chapter 4 addresses all aspects of fuel gas piping including the allowed materials, design and sizing, piping support, pressure requirements, controls, connections to appliances, installation requirements, purging and testing Also addressed are motor vehicle fuel dispensing systems The overarching intent is to prevent gas leakage, overpressures and underpressures and prevent accidents SECTION 401 (IFGC) GENERAL 401.1 Scope. This chapter shall govern the design, installa- tion, modification and maintenance of piping systems The applicability of this code to piping systems extends from the point of delivery to the connections with the appliances and includes the design, materials, components, fabrication, assembly, installation, testing, inspection, operation and maintenance of such piping systems 401.1.1 Utility piping systems located within buildings. Utility service piping located within buildings shall be installed in accordance with the structural safety and fire protection provisions of the International Building Code 401.2 Liquefied petroleum gas storage. The storage system for liquefied petroleum gas shall be designed and installed in accordance with the International Fire Code and NFPA 58 401.3 Modifications to existing systems. In modifying or adding to existing piping systems, sizes shall be maintained in accordance with this chapter 401.4 Additional appliances. Where an additional appliance is to be served, the existing piping shall be checked to deter- mine if it has adequate capacity for all appliances served If inadequate, the existing system shall be enlarged as required or separate piping of adequate capacity shall be provided 401.5 Identification. For other than steel pipe, exposed pip- ing shall be identified by a yellow label marked "Gas" in black letters The marking shall be spaced at intervals not exceeding 5 feet (1524 mm) The marking shall not be required on pipe located in the same room as the appliance served 401.6 Interconnections. Where two or more meters are installed on the same premises but supply separate consum- ers, the piping systems shall not be interconnected on the out- let side of the meters 401.7 Piping meter identification. Piping from multiple meter installations shall be marked with an approved perma- nent identification by the installer so that the piping system supplied by each meter is readily identifiable 401.8 Minimum sizes. Pipe utilized for the installation, extension and alteration of any piping system shall be sized to supply the full number of outlets for the intended purpose and shall be sized in accordance with Section 402 401.9 Identification. Each length of pipe and tubing and each pipe fitting, utilized in a fuel gas system, shall bear the identification of the manufacturer Exceptions: 1 Steel pipe sections that are 2 feet (610 mm) and less in length and are cut from longer sections of pipe 2 Steel pipe fittings 2 inches and less in size 3 Where identification is provided on the product packaging or crating 4 Where other approved documentation is provided 401.10 Piping materials standards. Piping, tubing and fit- tings shall be manufactured to the applicable referenced stan- dards, specifications and performance criteria listed in Section 403 and shall be identified in accordance with Sec- tion 401 9 SECTION 402 (IFGS) PIPE SIZING 402.1 General considerations. Piping systems shall be of such size and so installed as to provide a supply of gas suffi- cient to meet the maximum demand and supply gas to each appliance inlet at not less than the minimum supply pressure required by the appliance 402.2 Maximum gas demand. The volumetric flow rate of gas to be provided shall be the sum of the maximum input of the appliances served The total connected hourly load shall be used as the basis for pipe sizing, assuming that all appliances could be operat- ing at full capacity simultaneously Where a diversity of load can be established, pipe sizing shall be permitted to be based on such loads The volumetric flow rate of gas to be provided shall be adjusted for altitude where the installation is above 2,000 feet (610 m) in elevation 402.3 Sizing. Gas piping shall be sized in accordance with one of the following 1 Pipe sizing tables or sizing equations in accordance with Section 402 4 or 402 5 as applicable 2 The sizing tables included in a listed piping system's manufacturer's installation instructions 3 Other approved engineering methods 2018 INTERNAT10NAL FUEL GAS CODE® 31 I I 1 I CITFIght @ 2017 ICC ALL RIGHTS RESERVED A—LDd by H®Ih¢ Van Dme(Rv dme pooch od om),(Dty of FRmdNmod) O[do, Nomb6 xl 008170S601 JM 15, m0 oc 51 AM (PET) t to ( Lie Affiee^® Rt, ICC No fwN¢[TAodomo,,m AtO, Pepeodomo- by any Ot Party o, Axmboem a Romsd Mglo—ody mpyncg and Nyodwg LARISAd ANY VNAVTHO RIVER REICLA VCTION OR DISIRIBITTO N IS A VIOLATION OF THE FEDERAL COPYRIGHT ACT AND THE LICENSE AGREEMENT. AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER GAS PIPING INSTALLATIONS 402.4 Sizing tables and equations. This section applies to piping materials other than noncorrugated stainless steel tub- ing Where Tables 402 4(1) through 402 4(37) are used to size piping or tubing, the pipe length shall be determined in accordance with Section 402 4 1, 402 4 2 or 402 4 3 Where Equations 4-1 and 4-2 are used to size piping or tubing, the pipe or tubing shall have smooth inside walls and the pipe length shall be detemimed in accordance with Sec- tion 402 4 1, 402 4 2 or 402 4 3 Low-pressure gas equation [Less than 11/2 pounds per square inch (psi) (10 3 kPa)] QO 381 D A H o zoc (Equation 4-1) 19 17(C x L) 2 High-pressure gas equation [1'/2 psi (10 3 kPa) and above] Q0 381 D = (Equation 4-2) 1 [(p12 P22) IT 0206 1893 CrxL where D = Inside diameter of pipe, inches (mm) Q = Input rate appliance(s), cubic feet per hour at 60'F (16'C) and 30-mch mercury column P1 = Upstream pressure, psia (P, + 14 7) P2 = Downstream pressure, psia (P2+ 147) L = Equivalent length of pipe, feet 4H= Pressure drop, inch water column (27 7-inch water column = 1 psi) TABLE 402.4 C,AND YVALUES FOR NATURAL GAS AND UNDILUTED PROPANE AT STANDARD CONDITIONS GAS EQUATION FACTORS c, v Natural gas 06094 09992 Undiluted propane 12462 09910 For SI 1 cubic foot =0 028 m', 1 foot =305 mm, 1-mch water column = 0 2488 kPa, 1 pound per square inch = 6 895 kPa, 1 British thermal unit per hour= 0 293 W 402.4.1 Longest length method. The pipe size of each section of gas piping shall be determined using the longest length of piping from the point of delivery to the most remote outlet and the load of the section 402.4.2 Branch length method. Pipe shall be sized as fol- lows 1 Pipe size of each section of the longest pipe run from the point of delivery to the most remote outlet shall be determined using the longest run of piping and the load of the section 2 The pipe size of each section of branch piping not previously sized shall be determined using the length of piping from the point of delivery to the most remote outlet in each branch and the load of the section 402.4.3 Hybrid pressure. The pipe size for each section of higher pressure gas piping shall be detemi med using the longest length of piping from the point of delivery to the most remote line pressure regulator The pipe size from the line pressure regulator to each outlet shall be deter- mined using the length of piping from the regulator to the most remote outlet served by the regulator 402.5 Noncorrugated stainless steel tubing. Noncorrugated stainless steel tubing shall be sized in accordance with Equa- tions 4-1 and 4-2 of Section 402 4 in conjunction with Sec- tion 402 4 1, 402 4 2 or 402 4 3 402.6 Allowable pressure drop. The design pressure loss in any piping system under maximum probable flow conditions, from the point of delivery to the inlet connection of the appli- ance, shall be such that the supply pressure at the appliance is greater than or equal to the mmimum pressure required by the appliance 402.7 Maximum operating pressure. The maximum operat- ing pressure for piping systems located inside buildings shall not exceed 5 pounds per square inch gauge (psig) (34 kPa gauge) except where one or more of the following conditions are met 1 The piping joints are welded or brazed 2 The piping joints are flanged and pipe -to -flange con- nections are made by welding or brazing 3 The piping is located in a ventilated chase or otherwise enclosed for protection against accidental gas accumu- lation 4 The piping is located inside buildings or separate areas of buildings used exclusively for any of the following 4 1 Industrial processing or heating 4 2 Research 4 3 Warehousing 4 4 Boiler or mechanical rooms 5 The piping is a temporary installation for buildings under construction 6 The piping serves appliances or equipment used for agricultural purposes 7 The piping system is an LP -gas piping system with an operating pressure greater than 20 psi (137 9 kPa) and complies with NFPA 58 402.7.1 Operation below -50F (-210C). LP -gas systems designed to operate below -5'F (-21'C) or with butane or a propane -butane mix shall be designed to either accommo- date liquid LP -gas or prevent LP -gas vapor from condens- ing into a liquid 32 2018 INTERNATIONAL FUEL GAS CODE® rill 1 1 UER(Arynght Oo 2.017 ICC ALL RIGHTS RESERVED A—LDd by H®Ih¢ Van Dme(Rv dme pooch od om),(Qty of FRmdNmod)O[do, Nomb,,*1008170S601 JM 15, ZMO 0651 AM (PET) mt to S I ( 1, x Ag,e^ '^Rt, ICC No otths TAodomoam At6s Pepe odomo- by any Ot Party o[ Axmboemd,Oo[vsd Mglo —o,IA o,and Nyodwg L-IRIS d ANY VNAVTHO OLDER REPROD VCIION OR D ISIRIEVTION IS VIOLATION OP THE FED REAL COPYRIGHT 11 AND THE LICENSE AGREEMEoff . AND REJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER GAS PIPING INSTALLATIONS TABLE 402.4(1) i Gas Natural SCHEDULE 40 METALLIC PIPE I Inlet Pressure Less than 2 psi Pressure Drop I 0 3 in w c Specific Gravity0 60 PIPE SIZE (inch) Nominal 'Iz '14 1 1'14 "S 2 2% 3 4 5 6 8 10 12 Actual ID 0.622 0.824 1.049 1.380 1.610 2.067 2.469 3.068 4.026 5.047 6.065 7.981 10.020 11.938 Length (H) Capacity in Cubic Feet of Gas Per Hour 10 131 273 514 1,060 1,580 3,050 4,860 8,580 17,500 31,700 51,300 105,000 191,000 303,000 20 90 188 353 726 1,090 2,090 3,340 5,900 12,000 21,800 35,300 72,400 132,000 208,000 30 72 151 284 583 873 1,680 2,680 4,740 9,660 17,500 28,300 58,200 106,000 167,000 40 62 129 243 499 747 1,440 2,290 4,050 8,270 15,000 24,200 49,800 90,400 143,000 50 55 114 215 442 662 1,280 2,030 3,590 7,330 13,300 21,500 44,100 80,100 127,000 60 50 104 195 400 600 1,160 1,840 3,260 6,640 12,000 19,500 40,000 72,600 115,000 70 46 95 179 368 552 1,060 1,690 3,000 6,110 11,100 17,900 36,800 66,800 106,000 80 42 89 167 343 514 989 1,580 2,790 5,680 10,300 16,700 34,200 62,100 98,400 90 40 83 157 322 482 928 1,480 2,610 5,330 9,650 15,600 32,100 58,300 92,300 100 38 79 148 304 455 877 1,400 2,470 5,040 9,110 14,800 30,300 55,100 87,200 125 33 70 131 269 403 777 1,240 2,190 4,460 8,080 13,100 26,900 48,800 77,300 150 30 63 119 244 366 704 1,120 1,980 4,050 7,320 11,900 24,300 44,200 70,000 175 28 58 109 224 336 648 1,030 1,820 3,720 6,730 10,900 22,400 40,700 64,400 200 26 54 102 209 313 602 960 1,700 3,460 6,260 10,100 20,800 37,900 59,900 250 23 48 90 185 277 534 851 1,500 3,070 5,550 8,990 18,500 33,500 53,100 300 21 43 82 168 251 484 771 1,360 2,780 5,030 8,150 16,700 30,400 48,100 350 19 40 75 154 231 445 709 1,250 2,560 4,630 7,490 15,400 28,000 44,300 400 18 37 70 143 215 414 660 1,170 2,380 4,310 6,970 14,300 26,000 41,200 450 17 35 66 135 202 389 619 1,090 2,230 4,040 6,540 13,400 24,400 38,600 500 16 33 62 127 191 367 585 1,030 2,110 3,820 6,180 12,700 23,100 36,500 550 15 31 59 121 181 349 556 982 2,000 3,620 5,870 12,100 21,900 34,700 600 14 30 56 115 173 333 530 937 1,910 3,460 5,600 11,500 20,900 33,100 650 14 29 54 110 165 318 508 897 1,830 3,310 5,360 11,000 20,000 31,700 700 13 27 52 106 159 306 488 862 1,760 3,180 5,150 10,600 19,200 30,400 750 13 26 50 102 153 295 470 830 1,690 3,060 4,960 10,200 18,500 29,300 800 12 26 48 99 148 285 454 802 1,640 2,960 4,790 9,840 17,900 28,300 850 12 25 46 95 143 275 439 776 1,580 2,860 4,640 9,530 17,300 27,400 900 11 24 45 93 139 267 426 752 1,530 2,780 4,500 9,240 16,800 26,600 950 11 23 44 90 135 259 413 731 1,490 2,700 4,370 8,970 16,300 25,800 1,000 11 23 43 87 131 252 402 711 1,450 2,620 4,250 8,720 15,800 25,100 1,100 10 21 40 83 124 240 382 675 1,380 2,490 4,030 8,290 15,100 23,800 1,200 NA 20 39 79 119 229 364 644 1,310 2,380 3,850 7,910 14,400 22,700 1,300 NA 20 37 76 114 219 349 617 1,260 2,280 3,680 7,570 13,700 21,800 1,400 NA 19 35 73 109 210 335 592 1,210 2,190 3,540 7,270 13,200 20,900 1,500 NA 18 34 70 105 203 323 571 1,160 2,110 3,410 7,010 12,700 20,100 1,600 NA 18 33 68 102 196 312 551 1,120 2,030 3,290 6,770 12,300 19,500 1 A 16 8 18 0 7 39 88 00 1,8700 00NA 16 1 5 18 93 1, 1, 910 3, 0 , 1, , ,50 300 1,900 NA 1 30 62 93 1 178 284 502 1,020 1,850 3,000 6,170 11,200 17,700 2,000 NA 16 29 60 90 173 276 488 1,000 1,800 2,920 6,000 10,900 17,200 For SI 1 inch= 25 4 mm, 1 foot= 304 8 mm, 1 pound per square inch= 6 895 kft 1-inch water column = 0 2488 kPa, 1 British thermal unit per hour= 0 2931 W, 1 cubic foot per hour = 0 0283 m'/h, 1 degree = 0 01745 Tad Notes 1 NA means allow of less than 10 cth 2 Table entries have been rounded to three significant digits 2018 INTERNAT10NAL FUEL GAS CODE® 33 I " ' CAryaght @ 2017 ICC ALL RIGHTS RESERVED A-LDd by H®Ih¢ Van Dme(Rv O,,e Oo,d-od om),(Qty of FRmd od) O[do, Nomb,,*1008170S601 JM 15, m0 0651 AM (PET) mt to ( L-e Affiee^®t'^^I, ICC No fwN¢ [TAodomoo. m ALM,, ,Aodomo,, by any Ot Party o, Axmboemdmho[vsd M glo- ody mpyncg and ,yodwgL ARTS Ad ANY UNEARTHED RIVER REICLA VCTION OR DISIRIBITTO N IS A VIOLATION OF THE FEDERAL COPYRIGHT ACT AND THE LICENSE AGREEMENT. AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER GAS PIPING INSTALLATIONS TABLE 402.4(2) SCHEDULE 40 METALLIC PIPE Gas Natural miet FreeStireless man 2 psi ressure Drop 10 5in w c Specific Gravityll.1 PIPE SIZE (inch) Nominal Yz '14 1 1'14 1'12 2 2Y2 3 4 5 6 8 10 12 Actual ID 0.622 0.824 1.049 1.380 1.610 2.067 2.469 3.068 4.026 5.047 6.065 7.981 10.020 11.938 Length (ft) Capacity in Cubic Feet of Gas Per Hour 10 172 360 678 1,390 2,090 4,020 6,400 11,300 23,100 41,800 67,600 139,000 252,000 399,000 20 118 247 466 957 1,430 2,760 4,400 7,780 15,900 28,700 46,500 95,500 173,000 275,000 30 95 199 374 768 1,150 2,220 3,530 6,250 12,700 23,000 37,300 76,700 139,000 220,000 40 81 170 320 657 985 1,900 3,020 5,350 10,900 19,700 31,900 65,600 119,000 189,000 50 72 151 284 583 873 1,680 2,680 4,740 9,660 17,500 28,300 58,200 106,000 167,000 60 65 137 257 528 791 1,520 2,430 4,290 8,760 15,800 25,600 52,700 95,700 152,000 70 60 126 237 486 728 1,400 2,230 3,950 8,050 14,600 23,600 48,500 88,100 139,000 80 56 117 220 452 677 1,300 2,080 3,670 7,490 13,600 22,000 45,100 81,900 130,000 90 52 110 207 424 635 1,220 1,950 3,450 7,030 12,700 20,600 42,300 76,900 122,000 100 50 104 195 400 600 1,160 1,840 3,260 6,640 12,000 19,500 40,000 72,600 115,000 125 44 92 173 355 532 1,020 1,630 2,890 5,890 10,600 17,200 35,400 64,300 102,000 150 40 83 157 322 482 928 1,480 2,610 5,330 9,650 15,600 32,100 58,300 92,300 175 37 77 144 296 443 854 1,360 2,410 4,910 8,880 14,400 29,500 53,600 84,900 200 34 71 134 275 412 794 1,270 2,240 4,560 8,260 13,400 27,500 49,900 79,000 250 30 63 119 244 366 704 1,120 1,980 4,050 7,320 11,900 24,300 44,200 70,000 300 27 57 108 221 331 638 1,020 1,800 3,670 6,630 10,700 22,100 40,100 63,400 350 25 53 99 203 305 587 935 1,650 3,370 6,100 9,880 20,300 36,900 58,400 400 23 49 92 189 283 546 870 1,540 3,140 5,680 9,190 18,900 34,300 54,300 450 22 46 86 177 266 512 816 1,440 2,940 5,330 8,620 17,700 32,200 50,900 500 21 43 82 168 251 484 771 1,360 2,780 5,030 8,150 16,700 30,400 48,100 550 20 41 78 159 239 459 732 1,290 2,640 4,780 7,740 15,900 28,900 45,700 600 19 39 74 152 228 438 699 1,240 2,520 4,560 7,380 15,200 27,500 43,600 650 18 38 71 145 218 420 669 1,180 2,410 4,360 7,070 14,500 26,400 41,800 700 17 36 68 140 209 403 643 1,140 2,320 4,190 6,790 14,000 25,300 40,100 750 17 35 66 135 202 389 619 1,090 2,230 4,040 6,540 13,400 24,400 38,600 800 16 34 63 130 195 375 598 1,060 2,160 3,900 6,320 13,000 23,600 37,300 850 16 33 61 126 189 363 579 1,020 2,090 3,780 6,110 12,600 22,800 36,100 900 15 32 59 122 183 352 561 992 2,020 3,660 5,930 12,200 22,100 35,000 950 15 31 58 118 178 342 545 963 1,960 3,550 5,760 11,800 21,500 34,000 1,000 14 30 56 115 173 333 530 937 1,910 3,460 5,600 11,500 20,900 33,100 1,100 14 28 53 109 164 316 503 890 1,810 3,280 5,320 10,900 19,800 31,400 1,200 13 27 51 104 156 301 480 849 1,730 3,130 5,070 10,400 18,900 30,000 1,300 12 26 49 100 150 289 460 813 1,660 3,000 4,860 9,980 18,100 28,700 1,400 12 25 47 96 144 277 442 781 1,590 2,880 4,670 9,590 17,400 27,600 1,500 11 24 45 93 139 267 426 752 1,530 2,780 4,500 9,240 16,800 26,600 1,600 11 23 44 89 134 258 411 727 1,480 2,680 4,340 8,920 16,200 25,600 1,700 11 22 42 86 130 250 398 703 1,430 2,590 4,200 8,630 15,700 24,800 1,800 10 22 41 84 126 242 386 682 1,390 2,520 4,070 8,370 15,200 24,100 1,900 10 21 40 81 122 235 375 662 1,350 2,440 3,960 8,130 1 14,800 23,400 2,000 NA 20 39 79 119 229 364 644 1,310 2,380 3,850 7,910 14,400 22,700 For SI 1 inch= 25 4 mm, 1 foot= 304 8 mm, 1 pound per square inch = 6 895 kPa, 1-inch water column = 0 2488 kPa, 1 British thermal unit per hour= 0 2931 W, 1 cubic foot per hour= 0 0283 m'/h, 1 degree- 0 01745 End Notes 1 NA means a flow of less than 10 cth 2 Table entries have been rounded to three significant digits 34 2018 INTERNATIONAL FUEL GAS CODE® RTS' Copyaght Oo 2.017 ICC ALL RIGHTS RESERVED A-LDd by H®Ih¢ Van DmA(Rv O,,e Oo,d-od om),(Qty of R-d-od) O,do, Nomb¢*1008170S601 JM 15, m0 0651 AM (PET) mt to I ' " TTRR L-Ag,-^ '^^I, ICC No o tths ,Aodomo,, o ALM,, peodomo-by anytlodput, o[AAmboemdmho[vsd Mglo-o,IA-, and,yodwg GMILISAd ANY VNAVTHO OLDER REPROD VCIION OR D ISIRIEUTION IS VIOLATION OP THE FEDERAL COPYRIGHT 11AND THE LICENSE A G RE EM ENT. AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER GAS PIPING INSTALLATIONS TABLE 402.4(3) SCHEDULE 40 METALLIC PIPE Gas Natural Inuet Pressurel Less t an 2 psi ressure Dropla 0 in w c Specific UMVITY11.1 INTENDED USE: INITIAL SUPPLY PRESSURE OF 8.0-INCH W.C. OR GREATER PIPE SIZE (inch) Nominal 'Iz '14 1 1'14 1I'S 2 2% 3 4 Actual ID 0.622 0.824 1.049 1.380 1.610 2.067 2.469 3.068 4.026 Length Ill) Capacity in Cubic Feet of Gas Per Hour 10 454 949 1,790 3,670 5,500 10,600 16,900 29,800 60,800 20 312 652 1,230 2,520 3,780 7,280 11,600 20,500 41,800 30 250 524 986 2,030 3,030 5,840 9,310 16,500 33,600 40 214 448 844 1,730 2,600 5,000 7,970 14,100 28,700 50 190 397 748 1,540 2,300 4,430 7,070 12,500 25,500 60 172 360 678 1,390 2,090 4,020 6,400 11,300 23,100 70 158 331 624 1,280 1,920 3,700 5,890 10,400 21,200 80 147 308 580 1,190 1,790 3,440 5,480 9,690 19,800 90 138 289 544 1,120 1,680 3,230 5,140 9,090 18,500 100 131 273 514 1,060 1,580 3,050 4,860 8,580 17,500 125 116 242 456 936 1,400 2,700 4,300 7,610 15,500 150 105 219 413 848 1,270 2,450 3,900 6,890 14,100 175 96 202 380 780 1,170 2,250 3,590 6,340 12,900 200 90 188 353 726 1,090 2,090 3,340 5,900 12,000 250 80 166 313 643 964 1,860 2,960 5,230 10,700 300 72 151 284 583 873 1,680 2,680 4,740 9,700 350 66 139 261 536 803 1,550 2,470 4,360 8,900 400 62 129 243 499 747 1,440 2,290 4,060 8,300 450 58 121 228 468 701 1,350 2,150 3,800 7,800 500 55 114 215 442 662 1,280 2,030 3,590 7,300 550 52 109 204 420 629 1,210 1,930 3,410 7,000 600 50 104 195 400 600 1,160 1,840 3,260 6,640 650 47 99 187 384 575 1,110 1,760 3,120 6,360 700 46 95 179 368 552 1,060 1,700 3,000 6,110 750 44 92 173 355 532 1,020 1,630 2,890 5,890 800 42 89 167 343 514 989 1,580 2,790 5,680 850 41 86 162 332 497 957 1,530 2,700 5,500 900 40 83 157 322 482 928 1,480 2,620 5,330 950 39 81 152 312 468 901 1,440 2,540 5,180 1,000 38 79 148 304 455 877 1,400 2,470 5,040 1,100 36 75 141 289 432 833 1,330 2,350 4,780 1,200 34 71 134 275 412 794 1,270 2,240 4,560 1,300 33 68 128 264 395 761 1,210 2,140 4,370 1,400 31 65 123 253 379 731 1,170 2,060 4,200 1,500 30 63 119 244 366 704 1,120 1,980 4,050 1,600 29 61 115 236 353 680 1,080 1,920 3,910 1,700 28 59 111 228 342 658 1,050 1,850 3,780 1,800 27 57 168 221 331 638 1,020 1,800 3,670 1,900 27 56 105 215 322 619 987 1,750 3,560 2,000 26 54 102 209 313 602 960 1,700 3,460 For SI 1 inch = 25 4 mm, 1 foot =304 8 min, 1 pound per square inch= 6 895 kPa, 1-inch water column = 0 2488 kPa, 1 British thermal unit per hour = 0 2931 W, 1 cubic to or per hour = 0 0283 m'/h, 1 degree = 0 01745 Tad Note: Table entries have been rounded to three significant digits 2018 INTERNAT10NAL FUEL GAS CODE® 35 I " ' CITFIght @ 2017 ICC ALL RIGHTS RESERVED A-LDd by H®Ih¢ Van Dme(Rv O,,e pooch od om),(Qty of FRmdNmod) O[do, Nomb,,*1008170S601 JM 15, m0 0651 AM (PET) mt to ( Lom,e Affiee^®t'^^I, ICC No fwN¢ [,Aodomoo. m ALM,, gAodomo,, by anytlodParty o, Axmboemdmho[vsd M glo- ody mpyncg and ,yodwgp,oILbAd ANY VNAVTHO RIVER REPROD VCTION OR DISIRIBVTION IS VIOLATION OF THE FEDERAL COPYRIGHT ACT AND THE LICENSE AGREEMENT. AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER GAS PIPING INSTALLATIONS TABLE 402.4(4) Gas Natural SCHEDULE 40 METALLIC PIPE Inlet Pressure Less than 2 psi Pressure Drop I 6 0 in w c Specific Gravity0 60 INTENDED USE: INITIAL SUPPLY PRESSURE OF 11.0-INCH W.C. OR GREATER PIPE SIZE (inch) Nominal 11, 'I4 1 PI4 1IS 2 2% 3 4 Actual ID 0.622 0.824 1.049 1.380 1.610 2.067 2.469 3.068 4.026 Length (ft) Capacity in Cubic Feet of Gas Per Hour 10 660 1,380 2,600 5,340 8,000 15,400 24,600 43,400 88,500 20 454 949 1,790 3,670 5,500 10,600 16,900 29,900 60,800 30 364 762 1,440 2,950 4,420 8,500 13,600 24,000 48,900 40 312 652 1,230 2,520 3,780 7,280 11,600 20,500 41,800 50 276 578 1,090 2,240 3,350 6,450 10,300 18,200 37,100 60 250 524 986 2,030 3,030 5,840 9,310 16,500 33,600 70 230 482 907 1,860 2,790 5,380 8,570 15,100 30,900 80 214 448 844 1,730 2,600 5,000 7,970 14,100 28,700 90 201 420 792 1,630 2,440 4,690 7,480 13,200 27,000 100 190 397 748 1,540 2,300 4,430 7,070 12,500 25,500 125 168 352 663 1,360 2,040 3,930 6,260 11,100 22,600 150 153 319 601 1,230 1,850 3,560 5,670 10,000 20,500 vs 140 293 553 1,140 1,700 3,280 5,220 9,230 18,800 200 131 273 514 1,060 1,580 3,050 4,860 8,580 17,500 250 116 242 456 936 1,400 2,700 4,300 7,610 15,500 300 105 219 413 848 1,270 2,450 3,900 6,890 14,100 350 96 202 380 780 1,170 2,250 3,590 6,340 12,900 400 90 188 353 726 1,090 2,090 3,340 5,900 12,000 450 84 176 332 681 1,020 1,970 3,130 5,540 11,300 500 80 166 313 643 964 1,860 2,960 5,230 10,700 550 76 158 297 611 915 1,760 2,810 4,970 10,100 600 72 151 284 583 873 1,680 2,680 4,740 9,660 650 69 144 272 558 836 1,610 2,570 4,540 9,250 700 66 139 261 536 803 1,550 2,470 4,360 8,890 750 64 134 252 516 774 1,490 2,380 4,200 8,560 800 62 129 243 499 747 1,440 2,290 4,060 8,270 850 60 125 235 483 723 1,390 2,220 3,920 8,000 900 58 121 228 468 701 1,350 2,150 3,800 7,760 950 56 118 221 454 681 1,310 2,090 3,700 7,540 1,000 55 114 215 442 662 1,280 2,030 3,590 7,330 1,100 52 109 204 420 629 1,210 1,930 3,410 6,960 1,200 50 104 195 400 600 1,160 1,840 3,260 6,640 1,300 47 99 187 384 575 1,100 1,760 3,120 6,360 1,400 46 95 179 368 552 1,060 1,700 3,000 6,110 1,500 44 92 173 355 532 1,020 1,630 2,890 5,890 1,600 42 89 167 343 514 989 1,580 2,790 5,680 1,700 41 86 162 332 497 957 1,530 2,700 5,500 1,800 40 83 157 322 482 928 1,480 2,620 5,330 1,900 39 81 152 312 468 901 1,440 2,540 5,180 2,000 38 79 148 304 455 877 1,400 2,470 5,040 For SI 1 inch= 25 4 min, 1 foot= 304 8 min, 1 pound per square inch = 6 895 kPa, 1-inch water column = 0 2488 kPa, 1 British thermal unit per hour = 0 2931 W, 1 cubic foot per hour= 0 0283 m'/h, 1 degree= 0 01745 End Note: Table entries have been rounded to three significant digits 36 2018 INTERNATIONAL FUEL GAS CODE® RTS' Copyaght Oo 2.017 ICC ALL RIGHTS RESERVED A-LDd by H®Ih¢ Van DmA(Rv O,,e Oo,dA od om),(Qty of FRmdNmod) O[do, Nomb,,*1008170S601 JM 15, m0 0651 AM (PET) mt to I ( " RR L® Ag,e^ '^^I, ICC No o tths ,Aodomo,, o ALM,, Aodomo,, by anytlodput, o[AAmboemdmho[vsd Mglo-o,IA-, and,yodwg GMILISAd ANY VNAVTHO OLDER REPROD VCIION OR D ISIRIEUTION IS VIOLATION OP THE FEDERAL COPYRIGHT 11 AND THE LICENSE A G RE EM ENT. AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER GAS PIPING INSTALLATIONS TABLE 402.4(5) SCHEDULE 40 METALLIC PIPE Gas Natural inlet ressure 2 0 psi ressure Drop I 1 0 psi pectic uravirylU PIPE SIZE (inch) Nominal 1 314 1 1 1 1'14 1 1112 1 2 1 2Y2 1 3 1 4 Actual ID 0.622 0.824 1.049 1.380 1.610 1 2.067 2.469 3.068 4.026 Length (ft) Capacity in Cubic Feet of Gas Per Hour 10 1,510 3,040 5,560 11,400 17,100 32,900 52,500 92,800 189,000 20 1,070 2,150 3,930 8,070 12,100 23,300 37,100 65,600 134,000 30 869 1,760 3,210 6,590 9,880 19,000 30,300 53,600 109,000 40 753 1,520 2,780 5,710 8,550 16,500 26,300 46,400 94,700 50 673 1,360 2,490 5,110 7,650 14,700 23,500 41,500 84,700 60 615 1,240 2,270 4,660 6,980 13,500 21,400 37,900 77,300 70 569 1,150 2,100 4,320 6,470 12,500 19,900 35,100 71,600 80 532 1,080 1,970 4,040 6,050 11,700 18,600 32,800 67,000 90 502 1,010 1,850 3,810 5,700 11,000 17,500 30,900 63,100 100 462 934 1,710 3,510 5,260 10,100 16,100 28,500 58,200 125 414 836 1,530 3,140 4,700 9,060 14,400 25,500 52,100 150 372 751 1,370 2,820 4,220 8,130 13,000 22,900 46,700 175 344 695 1,270 2,601 3,910 7,530 12,000 21,200 43,300 200 318 642 1,170 2,410 3,610 6,960 11,100 19,600 40,000 250 279 583 1,040 2,140 3,210 6,180 9,850 17,400 35,500 300 253 528 945 1,940 2,910 5,600 8,920 15,800 32,200 350 232 486 869 1,790 2,670 5,150 8,210 14,500 29,600 400 216 452 809 1,660 2,490 4,790 7,640 13,500 27,500 450 203 424 759 1,560 2,330 4,500 7,170 12,700 25,800 500 192 401 717 1,470 2,210 4,250 6,770 12,000 24,400 550 182 381 681 1,400 2,090 4,030 6,430 11,400 23,200 600 174 363 650 1,330 2,000 3,850 6,130 10,800 22,100 650 166 348 622 1,280 1,910 3,680 5,870 10,400 21,200 700 160 334 598 1,230 1,840 3,540 5,640 9,970 20,300 750 154 322 576 1,180 1,770 3,410 5,440 9,610 19,600 800 149 311 556 1,140 1,710 3,290 5,250 9,280 18,900 850 144 301 538 1,100 1,650 3,190 5,080 8,980 18,300 900 139 292 522 1,070 1,600 3,090 4,930 8,710 17,800 950 135 283 507 1,040 1,560 3,000 4,780 8,460 17,200 1,000 132 275 493 1,010 1,520 2,920 4,650 8,220 16,800 1,100 125 262 468 960 1,440 2,770 4,420 7,810 15,900 1,200 119 250 446 917 1,370 2,640 4,220 7,450 15,200 1,300 114 239 427 878 1,320 2,530 4,040 7,140 14,600 1,400 110 230 411 843 1,260 2,430 3,880 6,860 14,000 1,500 106 221 396 812 1,220 2,340 3,740 6,600 13,500 1,600 102 214 382 784 1,180 2,260 3,610 6,380 13,000 1,700 99 207 370 759 1,140 2,190 3,490 6,170 12,600 1,0 96 200 358 736 1,100 2,120 3,390 5,980 12,200 1,80900 93 195 348 715 1,070 2,060 3,290 5,810 11,900 2,000 91 189 339 695 1,040 2,010 3,200 5,650 11,500 For SI 1 inch= 25 4 mm, 1 foot= 304 8 mm, 1 pound per square inch= 6 895 kft 1-inch water column = 0 2488 kPa, 1 British thermal unit per hour= 0 2931 W, 1 cubic foot per hour = 0 0283 m'/h, 1 degree = 0 01745 Fact Note: Table entries have been rounded to three significant digits 2018 INTERNAT10NAL FUEL GAS CODE® 37 I " ' CITFIght @ 2017 ICC ALL RIGHTS RESERVED A-LDd by H®Ih¢ Van Dme(Rv O,,e pooch od om),(Qty of FRmdNmod) O[do, Nomb,,*1008170S601 JM 15, m0 0651 AM (PET) mt to ( Lie Affiee^®t'^^I, ICC No fwN¢ [,Aodomoo. m ALM,, gAodomo,, by any Ot Party o, Axmboemdmho[vsd M glo- ody mpyncg and ,yodwgp,oIRbAd ANY VNAVTHO RIVER REPROD VCTION OR DISIRIBVTION IS VIOLATION OF THE FEDERAL COPYRIGHT ACT AND THE LICENSE AGREEMENT. AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER GAS PIPING INSTALLATIONS TABLE 402.4(6) SCHEDULE 40 METALLIC PIPE Gas Natural miet Pressurejapsi ressure wroplz 0 psi Specific Gravityll.1 PIPE SIZE (inch) Nominal Yz '14 1 114 1'12 2 2Y2 3 4 Actual ID 0.622 0.824 1.049 1.380 1.610 2.067 2.469 3.068 4.026 Length (ft) Capacity in Cubic Feet of Gas Per Hour 10 2,350 4,920 9,270 19,000 28,500 54,900 87,500 155,000 316,000 20 1,620 3,380 6,370 13,100 19,600 37,700 60,100 106,000 217,000 30 1,300 2,720 5,110 10,500 15,700 30,300 48,300 85,400 174,000 40 1,110 2,320 4,380 8,990 13,500 25,900 41,300 73,100 149,000 50 985 2,060 3,880 7,970 11,900 23,000 36,600 64,800 132,000 60 892 1,870 3,520 7,220 10,800 20,800 33,200 58,700 120,000 70 821 1,720 3,230 6,640 9,950 19,200 30,500 54,000 110,000 80 764 1,600 3,010 6,180 9,260 17,800 28,400 50,200 102,000 90 717 1,500 2,820 5,800 8,680 16,700 26,700 47,100 96,100 100 677 1,420 2,670 5,470 8,200 15,800 25,200 44,500 90,800 125 600 1,250 2,360 4,850 7,270 14,000 22,300 39,500 80,500 150 544 1,140 2,140 4,400 6,590 12,700 20,200 35,700 72,900 175 500 1,050 1,970 4,040 6,060 11,700 18,600 32,900 67,100 200 465 973 1,830 3,760 5,640 10,900 17,300 30,600 62,400 250 412 862 1,620 3,330 5,000 9,620 15,300 27,100 55,300 300 374 781 1,470 3,020 4,530 8,720 13,900 24,600 50,100 350 344 719 1,350 2,780 4,170 8,020 12,800 22,600 46,100 400 320 669 1,260 2,590 3,870 7,460 11,900 21,000 42,900 450 300 627 1,180 2,430 3,640 7,000 11,200 19,700 40,200 500 283 593 1,120 2,290 3,430 6,610 10,500 18,600 38,000 550 269 563 1,060 2,180 3,260 6,280 10,000 17,700 36,100 600 257 537 1,010 2,080 3,110 5,990 9,550 16,900 34,400 650 246 514 969 1,990 2,980 5,740 9,150 16,200 33,000 700 236 494 931 1,910 2,860 5,510 8,790 15,500 31,700 750 228 476 897 1,840 2,760 5,310 8,470 15,000 30,500 800 220 460 866 1,780 2,660 5,130 8,180 14,500 29,500 850 213 445 838 1,720 2,580 4,960 7,910 14,000 28,500 900 206 431 812 1,670 2,500 4,810 7,670 13,600 27,700 950 200 419 789 1,620 2,430 4,670 7,450 13,200 26,900 1,000 195 407 767 1,580 2,360 4,550 7,240 12,800 26,100 1,100 185 387 729 1,500 2,240 4,320 6,890 12,200 24,800 1,200 177 369 695 1,430 2,140 4,120 6,570 11,600 23,700 1,300 169 353 666 1,370 2,050 3,940 6,290 11,100 22,700 1,400 162 340 640 1,310 1,970 3,790 6,040 10,700 21,800 1,500 156 327 616 1,270 1,900 3,650 5,820 10,300 21,000 1,600 151 316 595 1,220 1,830 3,530 5,620 10,000 20,300 1,700 146 306 576 1,180 1,770 3,410 5,440 9,610 19,600 1,800 142 296 558 1,150 1,720 3,310 5,270 9,320 19,000 1,900 138 288 542 1,110 1,670 3,210 5,120 9,050 18,400 2,000 134 280 527 1,080 1,620 3,120 4,980 8,800 18,000 For SI 1 inch= 25 4 mm, 1 foot= 304 8 mm, 1 pound per square inch = 6 895 kPa, 1-inch water column = 0 2488 kPa, 1 British thermal unit per hour= 0 2931 W, 1 cubic foot per hour= 0 0283 m'/h, 1 degree= 0 01745 rad Note: Table entries have been rounded to three significant digits 38 2018 INTERNATIONAL FUEL GAS CODE® RTS' Copyaght Oo 2.017 ICC ALL RIGHTS RESERVED A-LDd by H®Ih¢ Van DmA(Rv O,,e Oo,d-od om),(Qty of R-d-od) O,do, Nomb¢*1008170S601 JM 15, m0 0651 AM (PET) mt to I ' " RR I,-Ag,-^ '^^I, ICC No o tths ,Aodomo,, o ALM,, peodomo-by any Ot Party o[AAmboemdmho[vsd Mglo-o,IA-, and,yodwg GMIRISAd ANY VNAVTHO OLDER REPROD VCIION OR D ISIRIEUTION IS VIOLATION OP THE FEDERAL COPYRIGHT 11 AND THE LICENSE A G RE EM ENT. AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER GAS PIPING INSTALLATIONS TABLE 402.4(7) i Gas Natural SCHEDULE 40 METALLIC PIPE I Inlet Pressurelb 0 psi Pressure Drop 3 5 psi Specific Gravity0 60 PIPE SIZE (inch) Nominal 'Iz '14 1 1'14 1'12 2 2'I2 3 4 Actual ID 0.622 0.824 1.049 1.380 1.610 2.067 2.469 3.068 4.026 Length Ill) Capacity in Cubic Feet of Gas Per Hour 10 3,190 6,430 11,800 24,200 36,200 69,700 111,000 196,000 401,000 20 2,250 4,550 8,320 17,100 25,600 49,300 78,600 139,000 283,000 30 1,840 3,720 6,790 14,000 20,900 40,300 64,200 113,000 231,000 40 1,590 3,220 5,880 12,100 18,100 34,900 55,600 98,200 200,000 50 1,430 2,880 5,260 10,800 16,200 31,200 49,700 87,900 179,000 60 1,300 2,630 4,800 9,860 14,800 28,500 45,400 80,200 164,000 70 1,200 2,430 4,450 9,130 13,700 26,400 42,000 74,300 151,000 80 1,150 2,330 4,260 8,540 12,800 24,700 39,300 69,500 142,000 90 1,060 2,150 3,920 8,050 12,100 23,200 37,000 65,500 134,000 100 979 1,980 3,620 7,430 11,100 21,400 34,200 60,400 123,000 125 876 1,770 3,240 6,640 9,950 19,200 30,600 54,000 110,000 150 786 1,590 2,910 5,960 8,940 17,200 27,400 48,500 98,900 175 728 1,470 2,690 5,520 8,270 15,900 25,400 44,900 91,600 200 673 1,360 2,490 5,100 7,650 14,700 23,500 41,500 84,700 250 558 1,170 2,200 4,510 6,760 13,000 20,800 36,700 74,900 300 506 1,060 1,990 4,090 6,130 11,800 18,800 33,300 67,800 350 465 973 1,830 3,760 5,640 10,900 17,300 30,600 62,400 400 433 905 1,710 3,500 5,250 10,100 16,100 28,500 58,100 450 406 849 1,600 3,290 4,920 9,480 15,100 26,700 54,500 500 384 802 1,510 3,100 4,650 8,950 14,300 25,200 51,500 550 364 762 1,440 2,950 4,420 8,500 13,600 24,000 48,900 600 348 727 1,370 2,810 4,210 8,110 12,900 22,900 46,600 650 333 696 1,310 2,690 4,030 7,770 12,400 21,900 44,600 700 320 669 1,260 2,590 3,880 7,460 11,900 21,000 42,900 750 308 644 1,210 2,490 3,730 7,190 11,500 20,300 41,300 800 298 622 1,170 2,410 3,610 6,940 11,100 19,600 39,900 850 288 602 1,130 2,330 3,490 6,720 10,700 18,900 38,600 900 279 584 1,100 2,260 3,380 6,520 10,400 18,400 37,400 950 271 567 1,070 2,190 3,290 6,330 10,100 17,800 36,400 1,000 264 551 1,040 2,130 3,200 6,150 9,810 17,300 35,400 1,100 250 524 987 2,030 3,030 5,840 9,320 16,500 33,600 1,200 239 500 941 1,930 2,900 5,580 8,890 15,700 32,000 1,300 229 478 901 1,850 2,770 5,340 8,510 15,000 30,700 1,400 220 460 866 1,780 2,660 5,130 8,180 14,500 29,500 1,500 212 443 834 1,710 2,570 4,940 7,880 13,900 28,400 1,600 205 428 806 1,650 2,480 4,770 7,610 13,400 27,400 1,700 198 414 780 1,600 2,400 4,620 7,360 13,000 26,500 1,800 192 401 756 1,550 2,330 4,480 7,140 12,600 25,700 1,900 186 390 734 1,510 2,260 4,350 6,930 12,300 25,000 2,000 181 379 714 1,470 2,200 4,230 6,740 11,900 24,300 For SI 1 inch= 25 4 mm, 1 foot= 304 8 mm, 1 pound per square inch- 6 895 kft 1-inch water column = 0 2488 kPa, 1 British thermal unit per hour= 0 2931 W, 1 cubic foot per hour = 0 0283 m'/h, 1 degree- 0 01745 Fact Note: Table entries have been rounded to three significant digits 2018 INTERNAT10NAL FUEL GAS CODE® 39 I " ' CAryaght @ 2017 ICC ALL RIGHTS RESERVED A-LDd by H®Ih¢ Van Dme(Rv O,,e Oo,d-od om),(Qty of FRmd od) O[do, Nomb,,*1008170S601 JM 15, m0 0651 AM (PET) mt to ( L-e Affiee^®t'^^I, ICC No fwN¢ [TAodomoo. m ALM,, ,Aodomo,, by any Ot Party o, Axmboemdmho[vsd M glo- ody mpyncg and ,yodwgL ARTS Ad ANY UNEARTHED RIVER REICLA VCTION OR DISIRIBITTO N IS A VIOLATION OF THE FEDERAL COPYRIGHT ACT AND THE LICENSE AGREEMENT. AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER GAS PIPING INSTALLATIONS TABLE 402.4(8) SEMIRIGID COPPER TUBING Gas Natural Inlet Pressure Less than 2 psi Pressure Drop 10 3 in w c Specific Gravity 0 60 TUBE SIZE (inch) Nominal K & L '14 'Ig 'Iz 'Ig 314 1 1'14 1'Iz 2 ACR 31. 'Iz Sir,314 % 1'Ig 131g Outside 0.375 0.500 0.625 0.750 0.875 1.125 1.375 1.625 2.125 Inside 0.305 0.402 0.527 0.652 0.745 0.995 1.245 1.481 1.959 Length (ft) Capacity in Cubic Feet of Gas Per Hour 10 20 42 85 148 210 448 806 1,270 2,650 20 14 29 58 102 144 308 554 873 1,820 30 11 23 47 82 116 247 445 701 1,460 40 10 20 40 70 99 211 381 600 1,250 50 NA 17 35 62 88 187 337 532 1,110 60 NA 16 32 56 79 170 306 482 1,000 70 NA 14 29 52 73 156 281 443 924 80 NA 13 27 48 68 145 262 413 859 90 NA 13 26 45 64 136 245 387 806 100 NA 12 24 43 60 129 232 366 761 125 NA 11 22 38 53 114 206 324 675 150 NA 10 20 34 48 103 186 294 612 175 NA NA 18 31 45 95 171 270 563 200 NA NA 17 29 41 89 159 251 523 250 NA NA 15 26 37 78 141 223 464 300 NA NA 13 23 33 71 128 202 420 350 NA NA 12 22 31 65 118 186 387 400 NA NA 11 20 28 61 110 173 360 450 NA NA 11 19 27 57 103 162 338 500 NA NA 10 18 25 54 97 153 319 550 NA NA NA 17 24 51 92 145 303 600 NA NA NA 16 23 49 88 139 289 650 NA NA NA 15 22 47 84 133 277 700 NA NA NA 15 21 45 81 128 266 750 NA NA NA 14 20 43 78 123 256 800 NA NA NA 14 20 42 75 119 247 850 NA NA NA 13 19 40 73 115 239 900 NA NA NA 13 18 39 71 111 232 950 NA NA NA 13 18 38 69 108 225 1,000 NA NA NA 12 17 37 67 105 219 1,100 NA NA NA 12 16 35 63 100 208 1,200 NA NA NA 11 16 34 60 95 199 1,300 NA NA NA 11 15 32 58 91 190 1,400 NA NA NA 10 14 31 56 88 183 1,500 NA NA NA NA 14 30 54 84 176 1,600 NA NA NA NA 13 29 52 82 170 1,700 NA NA NA NA 13 28 50 79 164 1,800 NA NA NA NA 13 27 49 77 159 1,900 NA NA NA NA 12 26 47 ]4 155 2,000 NA NA NA NA 12 25 46 ]2 151 For SI 1inch =254mm, 1foot =3048 mm, 1 pound per square inch =6895 kPa, 1-inch water column =02, kPa, 1 British thermal unit per hour = 0 2931 W, 1 cubic foot per hour = 0 0283 m'/h, 1 degree = 0 01745 End Notes 1 Table capacities are based on Type K copper tubing inside diameter (shown), which has the smallest inside diameter of the copper tubing products 2 NA means a flow of less than 10 cth 3 Table entries have been rounded to three significant digits 40 2018 INTERNATIONAL FUEL GAS CODE® r S ' " ' Copyaght Oo 2.017 ICC ALL RIGHTS RESERVED A—LDd by H®Ih¢ Van DmA(Rv O,,e Oo,d—od om),(Qty of R—d—od) O,do, Nomb¢*1008170S601 JM 15, m0 0651 AM (PET) mt to I TTRR L—Ag,—^ '^^I, ICC No o tths ,Aodomo,, o ALM,, peodomo-by anytlodput, o[AAmboemdmho[vsd Mglo—o,IA-, and,yodwg GMILISAd ANY VNAVTHO OLDER REPROD VCIION OR D ISIRIEUTIO N IS A VIOLATION OP THE FED ERAL COPYRIGHT 11AND THE LICENSE A G RE EM ENT. AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER GAS PIPING INSTALLATIONS TABLE 402.4(9) SEMIRIGID COPPER TUBING Gas Natural inlet ressure Less man 2 psi ressure Drop I u 5in w c Specific Gravityll.1 TUBE SIZE (inch) Nominal K&L '14 'Ig Yz 'Ig E14 1 1'14 1Yz 2 ACR 11. Yz sle E14 'Ig 1Yg 1'Ig Outside 0.375 0.500 0.625 0.750 0.875 1.125 1.375 1.625 2.125 Inside 0.305 0.402 0.527 0.652 0.745 0.995 1.245 1.481 1.959 Length (it) Capacity in Cubic Feet of Gas Per Hour 10 27 55 111 195 276 590 1,060 1,680 3,490 20 18 38 77 134 190 406 730 1,150 2,400 30 15 30 61 107 152 326 586 925 1,930 40 13 26 53 92 131 279 502 791 1,650 50 11 23 47 82 116 247 445 701 1,460 60 10 21 42 74 105 224 403 635 1,320 70 NA 19 39 68 96 206 371 585 1,220 80 NA 18 36 63 90 192 345 544 1,130 90 NA 17 34 59 84 180 324 510 1,060 100 NA 16 32 56 79 170 306 482 1,000 125 NA 14 28 50 70 151 271 427 890 150 NA 13 26 45 64 136 245 387 806 175 NA 12 24 41 59 125 226 356 742 200 NA 11 22 39 55 117 210 331 690 250 NA NA 20 34 48 103 186 294 612 300 NA NA 18 31 44 94 169 266 554 350 NA NA 16 28 40 86 155 245 510 400 NA NA 15 26 38 80 144 228 474 450 NA NA 14 25 35 75 135 214 445 500 NA NA 13 23 33 71 128 202 420 550 NA NA 13 22 32 68 122 192 399 600 NA NA 12 21 30 64 116 183 381 650 NA NA 12 20 29 62 111 175 365 700 NA NA 11 20 28 59 107 168 350 750 NA NA 11 19 27 57 103 162 338 800 NA NA 10 18 26 55 99 156 326 850 NA NA 10 18 25 53 96 151 315 900 NA NA NA 17 24 52 93 147 306 950 NA NA NA 17 24 50 90 143 297 1,000 NA NA NA 16 23 49 88 139 289 1,100 NA NA NA 15 22 46 84 132 274 1,200 NA NA NA 15 21 44 80 126 262 1,300 NA NA NA 14 20 42 76 120 251 1,400 NA NA NA 13 19 41 73 116 241 1,500 NA NA NA 13 18 39 71 111 232 1,600 NA NA NA 13 18 38 68 108 224 1,700 NA NA NA 12 17 37 66 104 27 1,800 NA NA NA 12 17 36 64 101 210 1,900 NA NA NA 11 16 35 62 98 204 2,000 NA NA NA 11 16 34 60 95 199 For SI 1 inch= 25 4 mm, 1 foot= 304 8 mm, 1 pound per square inch= 6 895 kft 1-inch water column = 0 2488 kPa, 1 British thermal unit per hour= 0 2931 W, 1 cubic foot per hour = 0 0283 m'/h, 1 degree = 0 01745 Tad Notes: 1 Table capacities are based on Type K copper tubing inside diameter (shown), which has the smallest inside diameter of the copper tubing products 2 NA means a flow of less than 10 cth 3 Table entries have been rounded to three significant digits 2018 INTERNAT10NAL FUEL GAS CODE® 41 I " ' CITFIght @ 2017 ICC ALL RIGHTS RESERVED A—LDd by H®Ih¢ Van DmA(Rv dme Oo,d—od om),(Qty of IFRmd—od) O[do, Nomb,,*10081vwS6 01JM 15, m0 0651 AM (PET) LAt,—t to ( L—AAg,,—®'^Rt, ICC No fwN¢[TAodomo,,m AtO, Tgoodomo- by anytlod Party oT AAmboem-thomsd Mglo—ody oTVgand Nyodwg L,okb¢Ad ANY VNAVTHO RIVER REPRODUCTION OR DISIRIBVTIO N IS A VIOLATION OF THE FEDERAL COPYRIGHT ACT AND THE LICENSE AGREEMENT. AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER GAS PIPING INSTALLATIONS TABLE 402.4(10) SEMIRIGID COPPER TUBING Gas Natural miet FreeStireless man 2 psi ressure Drop I 1 0 in w c Specific Gravityli.1 INTENDED USE: SIZING BETWEEN HOUSE LINE REGULATOR AND THE APPLIANCE TUBE SIZE (inch) Nominal K & L '14 31e Yz 'la 314 1 114 1"S 2 ACR 318 1I2 'la 314 'la 1Y8 131a Outside 0.375 0.500 0.625 0.750 0.875 1.125 1.375 1.625 2.125 Inside 0.305 0.402 0.527 0.652 0.745 0.995 1.245 1.481 1.959 Length (ft) Capacity in Cubic Feet of Gas Per Hour 10 39 80 162 283 402 859 1,550 2,440 5,080 20 27 55 111 195 276 590 1,060 1,680 3,490 30 21 44 89 156 222 474 853 1,350 2,800 40 18 38 77 134 190 406 730 1,150 2,400 50 16 33 68 119 168 359 647 1,020 2,130 60 15 30 61 107 152 326 586 925 1,930 70 13 28 57 99 140 300 539 851 1,770 80 13 26 53 92 131 279 502 791 1,650 90 12 24 49 86 122 262 471 742 1,550 100 11 23 47 82 116 247 445 701 1,460 125 NA 20 41 72 103 219 394 622 1,290 150 NA 18 37 65 93 198 357 563 1,170 175 NA 17 34 60 85 183 329 518 1,080 200 NA 16 32 56 79 170 306 482 1,000 250 NA 14 28 50 70 151 271 427 890 300 NA 13 26 45 64 136 245 387 806 350 NA 12 24 41 59 125 226 356 742 400 NA 11 22 39 55 117 210 331 690 450 NA 10 21 36 51 110 197 311 647 500 NA NA 20 34 48 103 186 294 612 550 NA NA 19 32 46 98 177 279 581 600 NA NA 18 31 44 94 169 266 554 650 NA NA 17 30 42 90 162 255 531 700 NA NA 16 28 40 86 155 245 510 750 NA NA 16 27 39 83 150 236 491 800 NA NA 15 26 38 80 144 228 474 850 NA NA 15 26 36 78 140 220 459 900 NA NA 14 25 35 75 135 214 445 950 NA NA 14 24 34 73 132 207 432 1,000 NA NA 13 23 33 71 128 202 420 1,100 NA NA 13 22 32 68 122 192 399 1,200 NA NA 12 21 30 64 116 183 381 1,300 NA NA 12 20 29 62 111 175 365 1,400 NA NA 11 20 28 59 107 168 350 1,500 NA NA 11 19 27 57 103 162 338 1,600 NA NA 10 18 26 55 99 156 326 1,700 NA NA 10 18 25 53 96 151 315 1,800 NA NA NA 17 24 52 93 147 306 1,900 NA NA NA 17 24 50 90 143 297 2,000 NA NA NA 16 23 49 88 139 289 For SI 1 inch= 25 4 mm, 1 foot= 304 8 mm, 1 pound per square inch = 6 895 kPa, 1-inch water column = 0 2488 kPa, 1 British thermal unit per hour= 0 2931 W, 1 cubic foot per hour= 0 0283 m'/h, 1 degree= 0 01745 End Notes: 1 Table capacities are based on Type K copper tubing inside diameter (shown), which has the smallest inside diameter of the copper tubing products 2 NA means a flow of less than 10 cth 3 Table entries have been rounded to three significant digits 42 2018 INTERNATIONAL FUEL GAS CODE® r " ' Copyaght Oo 2.017 ICC ALL RIGHTS RESERVED A—LDd by H®Ih¢ Van DmA(Rv dme Oo,d—od om),(Qty of R—d—od) OTdo, Nomb¢*1008170S601 JM 15, m0 0651 AM (PET) mt to TL S I ' TTRR 1,—AgffiA—m Rt, ICC No otths[TAodomo,,m Aths Tepeodomo-by any tlodParty o[AAmboem-tho[vsd Mglo—o,IAo, and Mwodwg GMILISAd ANY VNAVTHO OLDER REPROD VCIION OR DISTRIBUTE. N IS A VIOLATION OP THE FED ERAL COPYRIGHT 11AND THE LICENSE A G RE EM ENT. AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER GAS PIPING INSTALLATIONS TABLE 402.4(11) SEMIRIGID COPPER TUBING Gas Natural inlet ressure Less man 2 psi ressure Drop I 1 7 0 in w c Specific Gravityll.1 TUBE SIZE (inch) Nominal KS:L '14 Sir, Yz 'IB E14 1 1114 1Yz 2 ACR Ste 1I2 118 '14 'IB 1Y6 1'16 Outside 0.375 0.500 0.625 0.750 0.875 1.125 1.375 1.625 2.125 Inside 0.305 0.402 0.527 0.652 0.745 0.995 1.245 1.481 1.959 Length (ft) Capacity in Cubic Feet of Gas Per Hour 10 190 391 796 1,390 1,970 4,220 7,590 12,000 24,900 20 130 269 547 956 1,360 2,900 5,220 8,230 17,100 30 105 216 439 768 1,090 2,330 4,190 6,610 13,800 40 90 185 376 657 932 1,990 3,590 5,650 11,800 50 79 164 333 582 826 1,770 3,180 5,010 10,400 60 72 148 302 528 749 1,600 2,880 4,540 9,460 70 66 137 278 486 689 1,470 2,650 4,180 8,700 80 62 127 258 452 641 1,370 2,460 3,890 8,090 90 58 119 243 424 601 1,280 2,310 3,650 7,590 100 55 113 229 400 568 1,210 2,180 3,440 7,170 125 48 100 203 355 503 1,080 1,940 3,050 6,360 150 44 90 184 321 456 974 1,750 2,770 5,760 175 40 83 169 296 420 896 1,610 2,540 5,300 200 38 77 157 275 390 834 1,500 2,370 4,930 250 33 69 140 244 346 739 1,330 2,100 4,370 300 30 62 126 221 313 670 1,210 1,900 3,960 350 28 57 116 203 288 616 1,110 1,750 3,640 400 26 53 108 189 268 573 1,030 1,630 3,390 450 24 50 102 177 252 538 968 1,530 3,180 500 23 47 96 168 238 508 914 1,440 3,000 550 22 45 91 159 226 482 868 1,370 2,850 600 21 43 87 152 215 460 829 1,310 2,720 650 20 41 83 145 206 441 793 1,250 2,610 700 19 39 80 140 198 423 762 1,200 2,500 750 18 38 77 135 191 408 734 1,160 2,410 800 18 37 74 130 184 394 709 1,120 2,330 850 17 35 72 126 178 381 686 1,080 2,250 900 17 34 70 122 173 370 665 1,050 2,180 950 16 33 68 118 168 359 646 1,020 2,120 1,000 16 32 66 115 163 349 628 991 2,060 1,100 15 31 63 109 155 332 597 941 1,960 1,200 14 29 60 104 148 316 569 898 1,870 1,300 14 28 57 100 142 303 545 860 1,790 1,400 13 27 55 96 136 291 524 826 1,720 1,500 13 26 53 93 131 280 505 796 1,660 1,600 12 25 51 89 127 271 487 768 1,600 1,700 12 24 49 86 123 262 47 744 1,550 1,800 11 24 48 84 119 254 457 721 1,500 1900 11 23 47 81 115 247 444 700 1,460 2,000 11 22 45 79 112 240 432 681 1,420 For SI 1 inch= 25 4 mm, 1 foot= 304 8 mm, 1 pound per square inch= 6 895 kft 1-inch water column = 0 2488 kPa, 1 British thermal unit per hour= 0 2931 W, 1 cubic foot per hour = 0 0283 m'/h, 1 degree = 0 01745 Tad Notes: 1 Table capacities are based on Type K copper tubing inside diameter (shown), which has the smallest inside diameter of the copper tubing products 2 Table entries have been rounded to three significant digits 2018 INTERNAT10NAL FUEL GAS CODE® 43 I " ' CITFIght @ 2017 ICC ALL RIGHTS RESERVED A-LDd by H®Ih¢ Van DmA(Rv dme Oo,d-od om),(Qty of IFRmd-od) O[do, Nomb,,*10081vwS6 01JM 15, m0 0651 AM(PET)puArvant to ( L-AAffiee^® Rt, ICC No fwN¢ [TAodomoo. m AtO, «odomo-by any tlodParty o, AAmboem-thomsd M glo- ody mpyncg and MwodwgL,okb¢Ad ANY VNAVTHO RIVER REPRODUCTION OR DISIRIBVTIO N IS A VIOLATION OF THE FEDERAL COPYRIGHT ACT AND THE LICENSE AGREEMENT. AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER GAS PIPING INSTALLATIONS TABLE 402.4(12) SEMIRIGID COPPER TUBING Gas Natural inlet ressure 2 0 psi ressure Drop I 1 0 psi Specific Gravityll.1 TUBE SIZE (inch) Nominal K&L '14 31. 'Iz 'la 314 1 1'14 1'Iz 2 ACR 31. 11, 11a 314 71a 1'la 131a Outside 0.375 0.500 0.625 0.750 0.875 1.125 1.375 1.625 2.125 Inside 0.305 0.402 0.527 0.652 0.745 0.995 1.245 1.481 1.959 Length (ft) Capacity in Cubic Feet of Gas Per Hour 10 245 506 1,030 1,800 2,550 5,450 9,820 15,500 32T00 20 169 348 708 1,240 1,760 3,750 6,750 10,600 22;200 30 135 279 568 993 1,410 3,010 5,420 8,550 17,800 40 116 239 486 850 1,210 2,580 4,640 7,310 15;200 50 103 212 431 754 1,070 2,280 4,110 6,480 13,500 60 93 192 391 683 969 2,070 3,730 5,870 12;200 70 86 177 359 628 891 1,900 3,430 5,400 11,300 80 80 164 334 584 829 1,770 3,190 5,030 10j00 90 75 154 314 548 778 1,660 2,990 4,720 9,820 100 71 146 296 518 735 1,570 2,830 4,450 9,280 125 63 129 263 459 651 1,390 2,500 3,950 8,220 150 57 117 238 416 590 1,260 2,270 3,580 7,450 175 52 108 219 383 543 1,160 2,090 3,290 6,850 200 49 100 204 356 505 1,080 1,940 3,060 6,380 250 43 89 181 315 448 956 1,720 2,710 5,650 300 39 80 164 286 406 866 1,560 2,460 5,120 350 36 74 150 263 373 797 1,430 2,260 4,710 400 33 69 140 245 347 741 1,330 2,100 4,380 450 31 65 131 230 326 696 1,250 1,970 4,110 500 30 61 124 217 308 657 1,180 1,870 3,880 550 28 58 118 206 292 624 1,120 1,770 3,690 600 27 55 112 196 279 595 1,070 1,690 3,520 650 26 53 108 188 267 570 1,030 1,620 3,370 700 25 51 103 181 256 548 986 1,550 3,240 750 24 49 100 174 247 528 950 1,500 3,120 800 23 47 96 168 239 510 917 1,450 3,010 850 22 46 93 163 231 493 888 1,400 2,920 900 22 44 90 158 224 478 861 1,360 2,830 950 21 43 88 153 217 464 836 1,320 2,740 1,000 20 42 85 149 211 452 813 1,280 2,670 1,100 19 40 81 142 201 429 772 1,220 2,540 1,200 18 38 77 135 192 409 737 1,160 2,420 1,300 18 36 74 129 183 392 705 1,110 2,320 1,400 17 35 71 124 176 376 678 1,070 2,230 1,500 16 34 68 120 170 363 653 1,030 2,140 1,600 16 33 66 116 164 350 630 994 2,070 1,700 15 31 64 112 159 339 610 962 2,000 1,800 15 30 62 108 154 329 592 933 1,940 1,900 14 30 60 105 149 319 575 906 1,890 2,000 14 29 59 102 145 310 559 881 1,830 For SI 1 inch= 25 4 mm, 1 foot- 304 8 mm, 1 pound per square inch = 6 895 kPa, 1-inch water column = 0 2488 kPa, 1 British thermal unit per hour= 0 2931 W, 1 cubic foot per hour= 0 0283 m'/h, 1 degree= 0 01745 rad Notes: 1 Table capacities are based on Type K copper tubing inside diameter (shown), which has the smallest inside diameter of the copper tubing products 2 Table entries have been rounded to three significant digits 44 2018 INTERNATIONAL FUEL GAS CODE® r " ' Copyaght Oo 2017 ICC ALL RIGHTS RESERVED A-LDd by H®Ih¢ Van DmA(Rv dme Oo,d-od om),(Qty of R-d-od) OTdo, Numb¢ x1 ooe1vwS6 01JM 15, m0 0651 AM (PET) mt to TL S I ' TTRR 1,-AgffiA-m Rt, ICC No otths[TAodomoo.m Aths Tepeodomo-by any Ot Party o[AAmboem-tho[vsd Mglo-o,IAo, and Mwodwg GMIRISAd ANY VNAVTHO OLDER REPROD VCIION OR DISTRIBUTE. N IS A VIOLATION OP THE FED ERAL COPYRIGHT 11 AND THE LICENSE A G RE EM ENT. AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER GAS PIPING INSTALLATIONS TABLE 402.4(13) SEMIRIGID COPPER TUBING Gas Natural miet Pressurelzpsi ressure Drop I I 5psi pectic uravirylU INTENDED USE Pipe sizing between point of delivery and the house line regulator. Total load supplied by a single house line regulator not exceeding 150 cubic feet per hour. TUBE SIZE (inch) Nominal KS:L 'IQ 'IB 'Iz 'IB 'I4 1 PI4 1'Iz 2 ACR 'IB I S 'IB 'IQ 'IB 1'IB 1'16 Outside 0.375 0.500 0.625 0.750 0.875 1.125 1.375 1.625 2.125 Inside 0.305 0.402 0.527 0.652 0.745 0.995 1.245 1.481 1.959 Length Ill) Capacity in Cubic Feet of Gas Per Hour 10 303 625 1,270 2,220 3,150 6,740 12,100 19,100 39,800 20 208 430 874 1,530 2,170 4,630 8,330 13,100 27,400 30 167 345 702 1,230 1,740 3,720 6,690 10,600 22,000 40 143 295 601 1,050 1,490 3,180 5,730 9,030 18,800 50 127 262 532 931 1,320 2,820 5,080 8,000 16,700 60 115 237 482 843 1,200 2,560 4,600 7,250 15,100 70 106 218 444 776 1,100 2,350 4,230 6,670 13,900 80 98 203 413 722 1,020 2,190 3,940 6,210 12,900 90 92 190 387 677 961 2,050 3,690 5,820 12,100 100 87 180 366 640 907 1,940 3,490 5,500 11,500 125 77 159 324 567 804 1,720 3,090 4,880 10,200 150 70 144 294 514 729 1,560 2,800 4,420 9,200 175 64 133 270 472 670 1,430 2,580 4,060 8,460 200 60 124 252 440 624 1,330 2,400 3,780 7,870 250 53 110 223 390 553 1,180 2,130 3,350 6,980 300 48 99 202 353 501 1,070 1,930 3,040 6,320 350 44 91 186 325 461 984 1,770 2,790 5,820 400 41 85 173 302 429 916 1,650 2,600 5,410 450 39 80 162 283 402 859 1,550 2,440 5,080 500 36 75 153 268 380 811 1,460 2,300 4,800 550 35 72 146 254 361 771 1,390 2,190 4,560 600 33 68 139 243 344 735 1,320 2,090 4,350 650 32 65 133 232 330 704 1,270 2,000 4,160 700 30 63 128 223 317 676 1,220 1,920 4,000 750 29 60 123 215 305 652 1,170 1,850 3,850 800 28 58 119 208 295 629 1,130 1,790 3,720 850 27 57 115 201 285 609 1,100 1,730 3,600 900 27 55 111 195 276 590 1,060 1,680 3,490 950 26 53 108 189 268 573 1,030 1,630 3,390 1,000 25 52 105 184 261 558 1,000 1,580 3,300 1,100 24 49 100 175 248 530 954 1,500 3,130 1,200 23 47 95 167 237 505 910 1,430 2,990 1,300 22 45 91 160 227 484 871 1,370 2,860 1,400 21 43 88 153 218 465 837 1,320 2,750 1,500 20 42 85 148 210 448 806 1,270 2,650 1,600 19 40 82 143 202 432 779 1,230 2,560 1,700 19 39 ]9 138 196 419 ]53 1,190 2,470 1,800 18 38 ]] 134 190 406 ]31 1,150 2,400 1,900 18 37 74 130 184 394 709 1,120 2,330 2,000 17 36 72 126 179 383 690 1,090 2,270 For SI 1 inch= 25 4 Firm, 1 foot= 304 8 Firm, 1 pound per square inch= 6 895 kft 1-inch water column = 0 2488 kPa, 1 British thermal unit per hour= 0 2931 W, 1 cubic foot per hour = 0 0283 m'/h, 1 degree = 0 01745 Fact Notes: 1 Table capacities are based on Type K copper tubing inside diameter (shown), which has the smallest inside diameter of the copper tubing products 2 Where this table is used to size the tubing upstream of a line pressure regulator, the pipe or tubing downstream of the line pressure regulator shall be sized using a pressure drop not greater than 1 inch w c 3 Table entries have been rounded to three significant digits 2018 INTERNAT10NAL FUEL GAS CODE® 45 I " ' CITFIght @ 2017 ICC ALL RIGHTS RESERVED A-LDd by H®Ih¢ Van DmA(Rv dme Oo,d-od om),(Qty of IFRmd-od) O[do, Nomb,,*10081vwS6 01JM 15, m0 0651 AM(PET)puArvant to ( L-AAffiee^® Rt, ICC No fwN¢ [TAodomo,, m fwih¢ «odomo-by any Ot Party o, AAmboem-thomsd M glo- ody mpyncg and MwodwgL,oIRb¢Ad ANY VNAVTHO RIVER REPRODUCTION OR DISIRIBVTIO N IS A VIOLATION OF THE FEDERAL COPYRIGHT ACT AND THE LICENSE AGREEMENT. AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER GAS PIPING INSTALLATIONS TABLE 402.4(14) SEMIRIGID COPPER TUBING Gas Natural inlet ressure 5 0 psi ressure wropla 5 psi Specific Gravityll.1 TUBE SIZE (inch) Nominal K & L '14 'la 'Iz 'la 'I4 1 1'IQ 1'12 2 ACR 'la '12 'la 'IQ 'la 1'la 17ISS Outside 0.375 0.500 0.625 0.750 0.875 1.125 1.375 1.625 2.125 Inside 0.305 0.402 0.527 0.652 0.745 0.995 1.245 1.481 1.959 Length (ft) Capacity in Cubic Feet of Gas Per Hour 10 511 1,050 2,140 3,750 5,320 11,400 20,400 32,200 67,100 20 351 724 1,470 2,580 3,650 7,800 14,000 22,200 46,100 30 282 582 1,180 2,070 2,930 6,270 11,300 17,800 37,000 40 241 498 1,010 1,770 2,510 5,360 9,660 15,200 31,700 50 214 441 898 1,570 2,230 4,750 8,560 13,500 28,100 60 194 400 813 1,420 2,020 4,310 7,750 12,200 25,500 70 178 368 748 1,310 1,860 3,960 7,130 11,200 23,400 80 166 342 696 1,220 1,730 3,690 6,640 10,500 21,800 90 156 321 653 1,140 1,620 3,460 6,230 9,820 20,400 100 147 303 617 1,080 1,530 3,270 5,880 9,270 19,300 125 130 269 547 955 1,360 2,900 5,210 8,220 17,100 150 118 243 495 866 1,230 2,620 4,720 7,450 15,500 175 109 224 456 796 1,130 2,410 4,350 6,850 14,300 200 101 208 424 741 1,050 2,250 4,040 6,370 13,300 250 90 185 376 657 932 1,990 3,580 5,650 11,800 300 81 167 340 595 844 1,800 3,250 5,120 10,700 350 75 154 313 547 777 1,660 2,990 4,710 9,810 400 69 143 291 509 722 1,540 2,780 4,380 9,120 450 65 134 273 478 678 1,450 2,610 4,110 8,560 500 62 127 258 451 640 1,370 2,460 3,880 8,090 550 58 121 245 429 608 1,300 2,340 3,690 7,680 600 56 115 234 409 580 1,240 2,230 3,520 7,330 650 53 110 224 392 556 1,190 2,140 3,370 7,020 700 51 106 215 376 534 1,140 2,050 3,240 6,740 750 49 102 207 362 514 1,100 1,980 3,120 6,490 800 48 98 200 350 497 1,060 1,910 3,010 6,270 850 46 95 194 339 481 1,030 1,850 2,910 6,070 900 45 92 188 328 466 1,000 1,790 2,820 5,880 950 43 90 182 319 452 967 1,740 2,740 5,710 1,000 42 87 177 310 440 940 1,690 2,670 5,560 1,100 40 83 169 295 418 893 1,610 2,530 5,280 1,200 38 79 161 281 399 852 1,530 2,420 5,040 1,300 37 76 154 269 382 816 1,470 2,320 4,820 1,400 35 73 148 259 367 784 1,410 2,220 4,630 1,500 34 70 143 249 353 755 1,360 2,140 4,460 1,600 33 68 138 241 341 729 1,310 2,070 4,310 1,700 32 65 133 233 330 7 5 1,2]0 2,000 4,170 1,800 31 63 129 226 320 684 1,230 1,940 4,040 1,900 30 62 125 219 311 664 1,200 1,890 31930 2,000 29 60 122 213 302 646 1,160 1,830 1 3,820 For SI 1 inch= 25 4 mm, 1 foot- 304 8 mm, 1 pound per square inch = 6 895 kPa, 1-inch water column = 0 2488 kPa, 1 British thermal unit per hour= 0 2931 W, 1 cubic foot per hour= 0 0283 m'/h, 1 degree= 0 01745 rad Notes: 1 Table capacities are based on Type K copper tubing inside diameter (shown), which has the smallest inside diameter of the copper tubing products 2 Table entries have been rounded to three significant digits 46 2018 INTERNATIONAL FUEL GAS CODE® r " ' Copyaght Oo 2017 ICC ALL RIGHTS RESERVED A-LDd by H®Ih¢ Van DmA(Rv dme Oo,d-od om),(Qty of R-d-od) OTdo, Numb¢ x1 ooe1vwS6 01JM 15, m0 0651 AM (PET) mt to TL S I ' TTRR 1,-Ag,-^ '^Rt, ICC No otths[TAodomoo.m Aths Tepeodomo-by any Ot Party o[AAmboem-tho[vsd Mglo-o,IAo, and Mwodwg GMIRISAd ANY VNAVTHO OLDER REPROD VCIION OR DISTRIBUTE. N IS A VIOLATION OP THE FED ERAL COPYRIGHT 11 AND THE LICENSE A G RE EM ENT. AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER GAS PIPING INSTALLATIONS TABLE 402.4(15) CORRUGATED STAINLESS STEEL TUBING (CSST) Gas Natural inlet ressure Less man 2 psi ressure Drop 10 5in w c Specific Gravityll.1 TUBE SIZE (EHD) Flow Designation 13 15 18 19 23 1 25 1 30 1 31 1 37 39 46 48 60 62 Length (ft) Capacity in Cubic Feet of Gas Per Hour 5 46 63 115 134 225 270 471 546 895 1,037 1,790 2,070 3,660 4,140 10 32 44 82 95 161 192 330 383 639 746 1,260 1,470 2,600 2,930 15 25 35 66 77 132 157 267 310 524 615 1,030 1,200 2,140 2,400 20 22 31 58 67 116 137 231 269 456 536 888 1,050 1,850 2,080 25 19 27 52 60 104 122 206 240 409 482 793 936 1,660 1,860 30 18 25 47 55 96 112 188 218 374 442 723 856 1,520 1,700 40 15 21 41 47 83 97 162 188 325 386 625 742 1,320 1,470 50 13 19 37 42 75 87 144 168 292 347 559 665 1,180 1,320 60 12 17 34 38 68 80 131 153 267 318 509 608 1,080 1,200 70 11 16 31 36 63 74 121 141 248 563 80 10 15 29 33 60 69 113 132 232 527 90 10 14 28 32 57 65 107 125 219 498 100 9 13 26 30 54 62 101 118 208 472 150 7 10 20 23 42 48 78 91 171 114812426 387 M25 200 6 9 18 21 38 44 71 82 148 336 250 5 8 16 19 34 39 63 74 133 301 300 5 7 15 17 32 36 57 67 95 275 For SI 1 inch= 25 4 mm, 1 foot= 304 8mm, 1 pound per square inch= 6 895 kft 1-inch water column = 0 2488 kPa, 1 British thermal unit per hour= 0 2931 W, 1 cubic foot per hour = 0 0283 m'/h, 1 degree = 0 01745 Tad Notes: 1 Table includes losses for four 90-degree bends and two end fittings Tubing runs with larger numbers of bends or fittings shall be increased by an equivalent length of tubing to the following equation L =1 3n, where L is additional length (feet) of tubing and n is the number of additional fittings or bends 2 EHD—Equivalent Hydraulic Diameter, which is a measure of the relative hydraulic efficiency between different tubing sizes The greater the value of EHD, the greater the gas capacity of the tubing 3 Table entries have been rounded to three significant digits 2018 INTERNATIONAL FUEL GAS CODE® 47 I " ' CITFIght @ 2017 ICC ALL RIGHTS RESERVED A—LDd by H®Ih¢ Van Dme(Rv O,,e Oo,dwood om),(Qty of FRmdwood) O[do, Nomb,,*1008170S601 JM 15, m0 0651 AM (PET) mt to ( L—e Affiee^®t'^^I, ICC No fwN¢ [,Aodomoo. m ALM,, Pepeodomo-by anytlodParty o, Axmboemdmho[vsd M glo— ody mpyncg and ,yodwgp,oILbAd ANY VNAVTHO RIVER REPRODUCTION OR DISIRIBVTIO N IS A VIOLATION OF THE FEDERAL COPYRIGHT ACT AND THE LICENSE AGREEMENT. AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER GAS PIPING INSTALLATIONS 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 o t� Q e o e m �n o cv e e rn e e of m b W N Q O tD W � e vi Q Q r<i of cS cS - cS cS cS cS — -. y o �n of O m e Q � of cS cS - - cS cS — — — e rn o Q o e of u1 m e t` of rn y Q N- t� of m ,-. u1 Q cS cS rn o rn of rn of t� e of e Q of of t` u1 rn cv rc a7 Q t n Q N ,-. o m m t� e e e u1 Q Q rn rn w rc p a7 `w ,-. � N o ci LL ri —� of m t� e e u1 u1 u1 Q Q rn rn cv 3 � x W O z � W tD 0 LL LL O Ot l� tD Vl Vl Q Q fn fn fn fn N N N W S (1 K W � N N o ti N P W -ti P O tD to O W tD vl O P vl Q a a � a J a f a Q tD P N Ot P fn Ot P tD Vl Q N O Ot W J tD Q fn fn N N N N� F z Vl f�l f�l N N N 0 O z m r- r- Q N o0 of N e ,-. t` rn cv �n o t— cv ,� m e u1 u1 Q rn rn rn N N N cv -. C O � 0 C L S O Vl O Vl 0 0 0 0 0 0 0 0� 0� 0 � OI 171 .� N N fn Q Vl tD P W Ot a a N N fn N d O y J 48 2018 INTERNATIONAL FUEL GAS CODE® " ' C',gbt@@2017 ICC ALL RIGHTS RESERVED Awsedby HDO,, Cm Dme(Rv dme Oo,dwood om).(Qtyof FRmdNmod)O[d6N=b6x100817— 0ljM 15,o M0 oc 51 AM(PET)pu�ry Mt to S I ( I.i®xeAg,—KtaAOICC Nofth,,,odoSmo,,,o�t,,, od,S,00zbymy ,dputyo, Axmbm®aahoossd&ogl—,00lyWpynogmdoetwodmgp,okbAd ANY VNAVTHORIVED RBPROD VCI ION OR DISI RIB VTIO N IS A VIOLATION OF THE FEDERAL COPYRIGHT ACT AND THE LICENSE AGREEMENT, AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER GAS PIPING INSTALLATIONS 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 m �n n rn cv eS N o m 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Q Q rn cv e W N N tD � Q O tD r<i fn of S f.i O of M cS fn cS O cS W -. tD O— cS cS -- cS cS � � e m rn N of Q o e of e �n e m �n t� t� of e Q rn of cS cS cS -. of m t� K W F �n t� fn N m of o Q Q e fn rn o� Q fn cv o� cv `o t` m e Q of o t� � r•i ri � m m m m u1 u1 Q ,-" � o O x Ci `w 3 N o 0 0 0 0 0 0 U z O O d _ d LL O O a o 0 0 W x o rc w a7 U a of rn o yf c ,-. of m t� e u1 u1 u1 Q Q Q rn cv cv cv N N W K N W � q m y N W O tD W O� fn O W Vl l� fn fn tD Q Q tD tD J LL F � U tD .� - of N m fn t` P e W u1 u1 P Q fn Q O Q W rn rn Ot cv Vl cv N cv O cv a N J ti Ot N N Q Ot Ot Vl O O Q� O N Ot Q N N Q - - - - N - — — Z W � P Ot tD O N fn fn Vl Vl Ot tD Vl tD Vl tD Q Q 0 z Q rn cv cv cv fn N cv of of t` e e u1 u1 u1 Q rn rn rn cv N ,-. ,-. C O � W d O � o � m � o H cco � w 3 � o T O w m o � co °� c U o � r co °� c u aci Ca � W � w E o a $ d c � r � F y N ad Y W u � O C Pq U N tItl I ts c T s �ww d O ty^ E a u O ry 'O d rn o m`o r � O E w l= F E = N r � c a $ w �g o SEELE v O a SE a a3 Iw c o r cco E z N N � d B Eo m�tL m c`o o $cq O o c w 6 w E E E a 0 2018 INTERNATIONAL FUEL GAS CODE® 49 I " ' CITFIght @ 2017 ICC ALL RIGHTS RESERVED A—LDd by H®Ih¢ Van Cm,(Rv dme Oo,dwood om),(Qty of FRmdNmod)O[d6N=b6*1008170S601 JM 15. ZMO oc 51 AM(PET)pucrvant to ( I,®xeA,,m,m,AOICC Nof th,,e,od,�,00.mfw ,,e od,S,00zbymy ,dPartyo, Axmbm®authoNsd Mgl—yody,o,,,g and Mwodmgp,oIRbAd ANY VNAVTHORIVED REPRODUCTION OR DISIRIBITTO N IS A VIOLATION OF THE FEDERAL COPYRIGHT ACT AND THE LICENSE AGREEMENT. AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER GAS PIPING INSTALLATIONS TABLE 402.4(18) CORRUGATED STAINLESS STEEL TUBING (CSST) GasINatural miet Pressure 12 psi ressure Drop I 1 0 psi Specific Gravityll.1 TUBE SIZE (EHD) Flow Designation 13 15 1 18 19 23 25 30 1 31 37 39 46 48 60 62 Length (ft) Capacity in Cubic Feet of Gas Per Hour 10 270 353 587 700 1,100 1,370 2,590 2,990 4,510 5,037 9,600 10,700 18,600 21,600 25 166 220 374 444 709 876 1,620 1,870 2,890 3,258 6,040 6,780 11,900 13,700 30 151 200 342 405 650 801 1,480 1,700 2,640 2,987 5,510 6,200 10,900 12,500 40 129 172 297 351 567 696 1,270 1,470 2,300 2,605 4,760 5,380 9,440 10,900 50 115 154 266 314 510 624 1,140 1,310 2,060 2,343 4,260 4,820 8,470 9,720 75 93 124 218 257 420 512 922 1,070 1,690 1,932 3,470 3,950 6,940 7,940 80 89 120 211 249 407 496 892 1,030 1,640 1,874 3,360 3,820 6,730 7,690 100 79 107 189 222 366 445 795 920 1,470 1,685 3,000 3,420 6,030 6,880 150 64 87 155 182 302 364 646 748 1,210 1,389 2,440 2,800 4,940 5,620 200 55 75 135 157 263 317 557 645 1,050 1,212 2,110 2,430 4,290 4,870 250 49 67 121 141 236 284 497 576 941 1,090 1,890 2,180 3,850 4,360 300 44 61 110 129 217 260 453 525 862 999 1,720 1,990 3,520 3,980 400 38 52 96 111 189 225 390 453 749 871 1,490 1,730 3,060 3,450 500 34 46 86 100 170 202 348 404 552 783 1,330 1,550 2,740 3,090 For SI 1 inch= 25 4 mm, 1 foot= 304 8 mm, 1 pound per square inch = 6 895 kPa, 1-inch water column = 0 2488 kPa, 1 British thermal unit per hour= 0 2931 W, 1 cubic foot per hour= 0 0283 m'/h, 1 degree= 0 01745 rad Notes: 1 Table does not include effect of pressure drop across the line regulator Where regulator loss exceeds'/a psi, DO NOT USE THIS TABLE Consult with the regulator manufacturer for pressure drops and capacity factors Pressure drops across a regulator may vary with flow rate 2 CAUTION Capacities shown in the table might exceed maximum capacity for a selected regulator Consult with the regulator or tubing manufacturer for guidance 3 Table includes losses for four 90-degree bends and two end fittings Tubing runs with larger numbers of bends or fittings shall be increased by an equivalent length of tubing to the following equation L =1 3n where L is additional length (feet) of tubing and n is the number of additional fittings or bends 4 ENDEquivalentHydraulic Diameter, which is a measure of the relative hydraulic efficiency between different tubing sizes The greater the value of END, the greater the gas capacity of the tubing 5 Table entries have been rounded to three significant digits 50 2018 INTERNATIONAL FUEL GAS CODE® RTS' TTRR(Aryaght Oo 2.017 ICC ALL RIGHTS RESERVED A-LDd by H®Ih¢ Van Dme(Rv dme Oo,d-od om),(Qty of R-d-od) OTdo, Nomb,, x1 008170S601 JM 15, m0 0651 AM (GET) mt to I ( " LET Ag,-^ '^Rt, ICC Nootths[TAodomoo.m AthsTepeodomo-by any Ot Party o[ATmboem-tho[vsd Mglo-o,IAo, and Mwodwg L-IRISed ANY UNAUTHO OLDER REPROD UCIION OR D ISIRIEUTION IS VIOLATION OP THE FEDERAL COPYRIGHT 11 AND THE LICENSE A G RE EM ENT. AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER GAS PIPING INSTALLATIONS TABLE 402.4(19) CORRUGATED STAINLESS STEEL TUBING (CSST) Gas Natural Inlet Pressure I 5 0 psi Pressure Drop I 3 5 psi Specific Gravity0 60 Nil TUBE SIZE (EHD) Flow Designation 13 15 18 19 23 25 1 30 1 31 1 37 1 39 1 46 48 60 62 Length (ft) Capacity in Cubic Feet of Gas Per Hour 10 523 674 1,080 1,300 2,000 2,530 4,920 5,660 8,300 9,140 18,100 19,800 34,400 40,400 25 322 420 691 827 1,290 1,620 3,080 3,540 5,310 5,911 11,400 12,600 22,000 25,600 30 292 382 632 755 1,180 1,480 2,800 3,230 4,860 5,420 10,400 11,500 20,100 23,400 40 251 329 549 654 1,030 1,280 2,420 2,790 4,230 4,727 8,970 10,000 17,400 20,200 50 223 293 492 586 926 1,150 2,160 2,490 3,790 4,251 8,020 8,930 15,600 18,100 75 180 238 403 479 763 944 1,750 2,020 3,110 3,506 6,530 7,320 12,800 14,800 80 174 230 391 463 740 915 1,690 1,960 3,020 3,400 6,320 7,090 12,400 14,300 100 154 205 350 415 665 820 1,510 1,740 2,710 3,057 5,650 6,350 11,100 12,800 150 124 166 287 339 548 672 1,230 1,420 2,220 2,521 4,600 5,200 9,130 10,500 200 107 143 249 294 478 584 1,060 1,220 1,930 2,199 3,980 4,510 7,930 9,090 250 95 128 223 263 430 524 945 1,090 1,730 1,977 3,550 4,040 7,110 S 140 300 86 116 204 240 394 479 860 995 1,590 1,813 3,240 3,690 6,500 7,430 400 74 100 177 208 343 416 742 858 1,380 1,581 2,800 3,210 5,650 6,440 500 66 89 159 186 309 373 662 766 1,040 1,422 2,500 2,870 5,060 5,760 For SI 1 inch- 25 4 mm, 1 feet- 304 8 mm, 1 pound per square inch- 6 895 kft 1-inch water column = 0 2488 kPa, 1 British thermal unit per hour= 0 2931 W, 1 cubic foot per hour = 0 0283 m'/h, 1 degree- 0 01745 Fact Notes: 1 Table does not include effect of pressure drop across the line regulator Where regulator loss exceeds'/a psi, DO NOT USE THIS TABLE Consult with the regulator manufacturer for pressure drops and capacity factors Pressure drops across a regulator may vary with flow rate 2 CAUTION Capacities shown in the table might exceed maximum capacity for a selected regulator Consult with the regulator or tubing manufacturer for guidance 3 Table includes losses for four 90-degree bends and two end fittings Tubing runs with larger numbers of bends or fittings shall be increased by an equivalent length of tubing to the following equation L =1 3n where L is additional length (feet) of tubing and n is the number of additional fittings or bends 4 ENDEquivalentHydraulic Diameter, which is a measure of the relative hydraulic efficiency between different tubing sizes The greater the value of END, the greater the gas capacity of the tubing 5 Table entries have been rounded to three significant digits 2018 INTERNATIONAL FUEL GAS CODE® 51 I " ' (Aryaght @ 2017 ICC ALL RIGHTS RESERVED A-LDd by H®Ih¢ Van Dme(Rv dme Oo,dwood om),(Qty of FRmdwood) O[do, Nomb,,*1008170S601 JM 15, m0 0651 AM (PET) t to ( L-e Affiee^® Rt, ICC No fwN¢ [TAodomoo, m fwih¢ Pepeodomo-by any Ot Party o, Axmboem-thomsd M glo- ody mpyncg and Mwodwg L-IRIS ed ANY UNEARTHED RIVER REPRODUCTION OR DISTRIBUTION IS VIOLATION OF THE FEDERAL COPYRIGHT ACT AND THE LICENSE AGREEMENT. AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER GAS PIPING INSTALLATIONS TABLE 402.4(20) POLYETHYLENE PLASTIC PIPE Gas Natural miet FreeStireless man 2 psi ressure Drop 10 a in w c Specific Gravityll.1 PIPE SIZE (inch) Nominal OD Yz '14 1 1Y4 1Yz 2 3 4 Designation SDR 9 SDR 11 SDR 11 SDR 10 SDR 11 SDR 11 SDR 11 SDR 11 Actual ID 0.660 0.860 1.077 1.328 1.554 1.943 2.864 3.682 Length (ft) Capacity in Cubic Feet of Gas per Hour 10 153 305 551 955 1,440 2,590 7,170 13,900 20 105 210 379 656 991 1,780 4,920 9,520 30 84 169 304 527 796 1,430 3,950 7,640 40 72 144 260 451 681 1,220 3,380 6,540 50 64 128 231 400 604 1,080 3,000 5,800 60 58 116 209 362 547 983 2,720 5,250 70 53 107 192 333 503 904 2,500 4,830 80 50 99 179 310 468 841 2,330 4,500 90 46 93 168 291 439 789 2,180 4,220 100 44 88 159 275 415 745 2,060 3,990 125 39 78 141 243 368 661 1,830 3,530 150 35 71 127 221 333 598 1,660 3,200 175 32 65 117 203 306 551 1,520 2,940 200 30 60 109 189 285 512 1,420 2,740 250 27 54 97 167 253 454 1,260 2,430 300 24 48 88 152 229 411 1,140 2,200 350 22 45 81 139 211 378 1,050 2,020 400 21 42 75 130 196 352 974 1,880 450 19 39 70 122 164 330 914 1,770 500 18 37 66 115 174 312 863 1,670 For SI 1 inch= 25 4 mm, 1 foot= 304 8 mm, 1 pound per square inch = 6 895 kPa, 1-inch water column = 0 2488 kPa, 1 British thermal unit per hour= 0 2931 W, 1 cubic foot per hour= 0 0283 m'/h, 1 degree= 0 01745 Tad Note: Table entries have been rounded to three significant digits 52 2018 INTERNATIONAL FUEL GAS CODE® " ' C',ght OO?.o17 ICC ALL RIGHTS RESERVED Awned by H®Ih¢ Van Dme(Rv O,,e Oo,dwood om),(Qty of FRmdwood)O[do, Nomb,,*100817- 01 jM 15. f DO 0651 AM(PET)pu�ry Mt to I ' M. I.i,o,,eAffiee^®,AOICC Nof th,, ,od,S,o,,,o u ,,, od,S,00zbyany ,dpartyo, Axmboe®amhow.d ANYVNAVTHORIVED RBPRODVCIION ORDISI RIBV LION LEA VIOLATION OF THE FEDERAL COPYRIGHT ACT AND THE LICENSEAGREEMENT.AND SUBJECT TO CIVIL AND CRIMINAL PENALTIESTHERBVNDER GAS PIPING INSTALLATIONS TABLE 402.4(21) Gas Natural POLYETHYLENE PLASTIC PIPE Inlet Pressure I Less than 2 psi Pressure Drop 10 bin w c Specific Gravity0 60 PIPE SIZE (inch) Nominal OD 11, '14 1 PI4 1'Iz 2 3 4 Designation SDR 9 SDR 11 SDR 11 SDR 10 SDR 11 SDR 11 SDR 11 SDR 11 Actual ID 0.660 0.860 1.077 1.328 1.554 1.943 2.864 3.682 Length (ft) Capacity in Cubic Feet of Gas per Hour 10 201 403 726 1,260 1,900 3,410 9,450 18,260 20 138 277 499 865 1,310 2,350 6,490 12,550 30 111 222 401 695 1,050 1,880 5,210 10,080 40 95 190 343 594 898 1,610 4,460 8,630 50 84 169 304 527 796 1,430 3,950 7,640 60 76 153 276 477 721 1,300 3,580 6,930 70 70 140 254 439 663 1,190 3,300 6,370 80 65 131 236 409 617 1,110 3,070 5,930 90 61 123 221 383 579 1,040 2,880 5,560 100 58 116 209 362 547 983 2,720 5,250 125 51 103 185 321 485 871 2,410 4,660 150 46 93 168 291 439 789 2,180 4,220 175 43 86 154 268 404 726 2,010 3,880 200 40 80 144 249 376 675 1,870 3,610 250 35 71 127 221 333 598 1,660 3,200 300 32 64 115 200 302 542 1,500 2,900 350 29 59 106 184 278 499 1,380 2,670 400 27 55 99 171 238 464 1,280 2,480 450 26 51 93 160 242 435 1,200 2,330 500 24 48 88 152 229 411 1,140 2,200 For SI 1 inch= 25 4 mm, 1 feet- 304 8 mm, 1 pound per square inch- 6 895 kft 1-inch water column = 0 2488 kPa, 1 British thermal unit per hour- 0 2931 W, 1 cubic foot per hour = 0 0283 m'/h, 1 degree = 0 01745 rad Note: Table entries have been rounded to three significant digits 2018 INTERNAT10NAL FUEL GAS CODE® 53 I " ' CITFIght @ 2017 ICC ALL RIGHTS RESERVED A-LDd by H®Ih¢ Van Dme(Rv O,,e Oo,d-od om),(Qty of FRmdwood)O[do, Nomb,,*1008170S601 JM 15. ZMO 0651 AM (PET) mt to ( L-e Affiee^®t'^^I, ICC No (wN¢ [,Aodomoo. m ALM,, Pepeodomo-by anytlodParty o, Axmboemdmho[vsd M glo- ody mpyncg and ,yodwgp,oILbAd ANY VNAVTHO RIVER REPROD VCTION OR DISTRIBUTION IS VIOLATION OF THE FEDERAL COPYRIGHT ACT AND THE LICENSE AGREEMENT. AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER GAS PIPING INSTALLATIONS TABLE 402.4(22) POLYETHYLENE PLASTIC PIPE Gas Natural miet Pressurelzpsi ressure Drop I 1 0 psi Specific Gravityll.1 PIPE SIZE (inch) Nominal OD Yz '14 1 1Y4 1Yz 2 3 4 Designation SDR 9 SDR 11 SDR 11 SDR 10 SDR 11 SDR 11 SDR 11 SDR 11 Actual ID 0.660 0.860 1.077 1.328 1.554 1.943 2.864 3.682 Length (ft) Capacity in Cubic Feet of Gas per Hour 10 1,860 3,720 6,710 11,600 17,600 31,600 87,300 169,000 20 1,280 2,560 4,610 7,990 12,100 21,700 60,000 116,000 30 1,030 2,050 3,710 6,420 9,690 17,400 48,200 93,200 40 878 1,760 3,170 5,490 8,300 14,900 41,200 79,700 50 778 1,560 2,810 4,870 7,350 13,200 36,600 70,700 60 705 1,410 2,550 4,410 6,660 12,000 33,100 64,000 70 649 1,300 2,340 4,060 6,130 11,000 30,500 58,900 80 603 1,210 2,180 3,780 5,700 10,200 28,300 54,800 90 566 1,130 2,050 3,540 5,350 9,610 26,600 51,400 100 535 1,070 1,930 3,350 5,050 9,080 25,100 48,600 125 474 949 1,710 2,970 4,480 8,050 22,300 43,000 150 429 860 1,550 2,690 4,060 7,290 20,200 39,000 175 395 791 1,430 2,470 3,730 6,710 18,600 35,900 200 368 736 1,330 2,300 3,470 6,240 17,300 33,400 250 326 652 1,180 2,040 3,080 5,530 15,300 29,600 300 295 591 1,070 1,850 2,790 5,010 13,900 26,800 350 272 544 981 1,700 2,570 4,610 12,800 24,700 400 253 506 913 1,580 2,390 4,290 11,900 22,900 450 237 475 856 1,480 2,240 4,020 11,100 21,500 500 224 448 809 1,400 2,120 3,800 10,500 20,300 550 213 426 768 1,330 2,010 3,610 9,990 19,300 600 203 406 733 1,270 1,920 3,440 9,530 18,400 650 194 389 702 1,220 1,840 3,300 9,130 17,600 700 187 374 674 1,170 1,760 3,170 8,770 16,900 750 180 360 649 1,130 1,700 3,050 8,450 16,300 800 174 348 627 1,090 1,640 2,950 8,160 15,800 850 168 336 607 1,050 1,590 2,850 7,890 15,300 900 163 326 588 1,020 1,540 2,770 7,650 14,800 950 158 317 572 990 1,500 2,690 7,430 14,400 1,000 154 308 556 963 1,450 2,610 7,230 14,000 1,100 146 293 528 915 1,380 2,480 6,870 13,300 1,200 139 279 504 873 1,320 2,370 6,550 12,700 1,300 134 267 482 836 1,260 2,270 6,270 12,100 1,400 128 257 463 803 1,210 2,180 6,030 11,600 1,500 124 247 446 773 1,170 2,100 5,810 11,200 1,600 119 239 431 747 1,130 2,030 5,610 10,800 1,700 115 231 417 723 1,090 1,960 5,430 10,500 1,800 112 224 404 701 1,060 1,900 5,260 10,200 1,900 109 218 393 680 1,030 1,850 5,110 9,900 2,000 106 212 382 662 1,000 1,800 4,970 9,600 For SI 1 inch= 25 4 mm, 1 foot= 304 8 mm, 1 pound per square inch = 6 895 kPa, 1-inch water column = 0 2488 kPa, 1 British thermal unit per hour= 0 2931 W, 1 cubic foot per hour= 0 0283 m'/h, 1 degree= 0 01745 rad Note: Table entries have been rounded to three significant digits 54 2018 INTERNATIONAL FUEL GAS CODE® RTS' Copyaght Oo 2.017 ICC ALL RIGHTS RESERVED A-LDd by H®Ih¢ Van DmA(Rv O,,e Oo,d-od om),(Qty of R-d-od)O,do,Nomb¢*1008170S601 JM 15. ZMO 0651 AM (GET) mt to I ( " RR I,-Ag,-^ '^^I, ICC No o tths ,Aodomo,, o ALM,, peodomo-by any Ot Party o[AAmboemdmho[vsd Mglo-o,IA-, and,yodwg GMIRISAd ANY VNAVTHO OLDER REPROD VCIION OR D ISIRIEUTION IS VIOLATION OP THE FEDERAL COPYRIGHT 11AND THE LICENSE A G RE EM ENT. AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER GAS PIPING INSTALLATIONS TABLE 402.4(23) TABLE 402.4(24) POLYETHYLENE PLASTIC TUBING POLYETHYLENE PLASTIC TUBING Gas Natural Gas tural Na Inlet Pressure Less than 2 0 psi Inlet Pressure Less than 2 0 psi Pressure Drop 0 3 in w e Pressure Drop 0 Sin w e Specific Gravity 0 60 Specific Gravity ju 60 PLASTIC TUBING SIZE (CTS) (inch) Nominal DID 11, '14 Designation SDR 7 SDR 11 Actual ID 0.445 0.927 Length (ft) Capacity in Cubic Feet of Gas per Hour 10 54 372 20 37 256 30 30 205 40 26 176 50 23 156 60 21 141 70 19 130 80 18 121 90 17 113 100 16 107 125 14 95 150 13 86 175 12 79 200 11 74 225 10 69 250 NA 65 275 NA 62 300 NA 59 350 NA 54 400 NA 51 450 NA 47 500 NA 45 PLASTIC TUBING SIZE (CTS) (inch) Nominal DID 11, 'IQ Designation SDR 7 SDR 11 Actual ID 0.445 0.927 Length (ft) Capacity in Cubic Feet of Gas per Hour 10 72 490 20 49 337 30 39 271 40 34 232 50 30 205 60 27 186 70 25 171 80 23 159 90 22 149 100 21 141 125 18 125 150 17 113 175 15 104 200 14 97 225 13 91 250 12 86 275 11 82 300 11 78 350 10 72 400 NA 67 450 NA 63 500 NA 59 For SI 1 inch = 25 4 mm, 1 foot= 304 8 mm, For SI 1 inch = 25 4 mm, 1 foot= 304 8 mm, 1 pound per square inch = 6 895 kPa, 1 pound per square inch = 6 895 kPa, 1-inch water column = 0 2488 kPa, 1-inch water column = 0 2488 kPa, 1 British thermal unitper hour= 0 2931 W, 1 British thermal unit per hour= 0 2931 W, 1 cubic foot per hour s00283m'/h,1degree =001745End 1 cubic foot per hour= 00283 m'/h, 1 degree s001745End Notes: Notes: 1 NAmeans aflow of less than 10 cth 1 NAmeans aflow of less than 10 cth 2 Table entries have been rounded to three significant digits 2 Table entries have been rounded to three significant digits 2018 INTERNAT10NAL FUEL GAS CODE® 55 I " ' CITFIght @ 2017 ICC ALL RIGHTS RESERVED A—LDd by H®Ih¢ Van Dme(Rv O,,e pooch od om),(Qty of FRmdNmod) O[do, Nomb,,*1008170S601 JM 15, m0 0651 AM (PET) mt to ( Lie Affiee^®t'^^I, ICC No fwN¢ [,Aodomo,, m ALM,, gAodomo,, by any Ot Party o, Axmboem dmho[vsd M glo— ody mpyncg and ,yodwgp,oIRbAd ANY VNAVTHO RIVER REPRODUCTION OR DISIRIBVTIO N IS A VIOLATION OF THE FEDERAL COPYRIGHT ACT AND THE LICENSE AGREEMENT. AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER GAS PIPING INSTALLATIONS TABLE 402.4(25) Gas Undiluted Propane SCHEDULE 40 METALLIC PIPE Inlet Pressure 10 0 psi Pressure Drop 11 0 psi Specific Gravityl 1 50 INTENDED USE Pipe sizing between first stage (high-pressure regulator) and second stage (low-pressure regulator). PIPE SIZE (inch) Nominal Yz 314 1 1'14 1I S 2 2% 3 4 Actual ID 0.622 0.824 1.049 1.380 1.610 2.067 2.469 3.068 4.026 Length (ft) Capacity in Thousands of Btu per Hour 10 3,320 6950 13,100 26,900 40,300 77,600 124,000 219,000 446,000 20 2,280 4,780 9,000 18,500 27,700 53,300 85,000 150,000 306,000 30 1,830 3,840 7,220 14,800 22,200 42,800 68,200 121,000 246,000 40 1,570 3;1.80 6,180 12,700 19,000 36,600 58,400 103,000 211,000 50 1,390 2910 5,480 11,300 16,900 32,500 51,700 91,500 187,000 60 1,260 2,640 4,970 10,200 15,300 29,400 46,900 82,900 169,000 70 1,160 2,430 4,570 9,380 14,100 27,100 43,100 76,300 156,000 80 1,080 2260 4,250 8,730 13,100 25,200 40,100 70,900 145,000 90 1,010 2,120 3,990 8,190 12,300 23,600 37,700 66,600 136,000 100 956 2,000 3,770 7,730 11,600 22,300 35,600 62,900 128,000 125 848 1,]]0 3,340 6,850 10,300 19,800 31,500 55,700 114,000 150 768 1,610 3,020 6,210 9,300 17,900 28,600 50,500 103,000 175 706 1,480 2,780 5,710 "60 16,500 26,300 46,500 94,700 200 657 1,370 2,590 5,320 7960 15,300 24,400 43,200 88,100 250 582 1;220 2,290 4,710 7,060 13,600 21,700 38,300 78,100 300 528 1,100 2,080 4,270 6,400 12,300 19,600 34,700 70,800 350 486 1,020 1,910 3,930 5,880 11,300 18,100 31,900 65,100 400 452 945 1,780 3,650 5,470 10,500 16,800 29,700 60,600 450 424 886 1,670 3,430 5,140 9,890 15,800 27,900 56,800 500 400 837 1,580 3,240 4,850 9,340 14,900 26,300 53,700 550 380 795 1,500 3,070 4,610 8,870 14,100 25,000 51,000 600 363 759 1,430 2,930 4,400 8,460 13,500 23,900 48,600 650 347 726 1,370 2,810 4;210 8,110 12,900 22,800 46,600 700 334 698 1,310 2,700 4,040 7,790 12,400 21,900 44,800 750 321 672 1,270 2,600 3900 7,500 12,000 21,100 43,100 800 310 649 1,220 2,510 3,760 7,240 11,500 20,400 41,600 850 300 628 1,180 2,430 3,640 7,010 11,200 19,800 40,300 900 291 609 1,150 2,360 3,530 6,800 10,800 19,200 39,100 950 283 592 1,110 2T90 3,430 6,600 10,500 18,600 37900 1,000 275 575 1,080 2;230 3,330 6,420 10,200 18,100 36900 1,100 261 546 1,030 2,110 3,170 6,100 9,720 17,200 35,000 1;200 249 521 982 2,020 3,020 5,820 9,270 16,400 33,400 1,300 239 499 940 1930 2,890 5,570 8,880 15,700 32,000 1,400 229 480 903 1,850 2,780 5,350 8,530 15,100 30,800 1,500 221 462 870 1,790 2,680 5,160 8,220 14,500 29,600 1,600 213 446 840 1,730 2,590 4,980 7,940 14,000 28,600 1,700 206 432 113 1,6]0 2,500 4,820 ],680 13,600 27700 1,800 200 419 789 1,620 2,430 4,6]0 ],450 13,200 26900 1900 194 407 766 1j70 2,360 4,540 7,230 12,800 26,100 2,000 189 395 745 1,530 2,290 4,410 7,030 12,400 25,400 For SI 1 inch = 25 4 mm, 1 foot =304 8 min, 1 pound per square inch= 6 895 kPa, 1-inch water column = 0 2488 kPa, 1 British thermal unit per hour= 0 2931 W, 1 cubic footper hour= 0 0283 m'/h, 1 degree= 0 01745 Tad Note: Table entries have been rounded to three significant digits 56 2018 INTERNATIONAL FUEL GAS CODE® RTS' Copyaght Oo 2017 ICC ALL RIGHTS RESERVED A-LDd by H®Ih¢ Van DmA(Rv O,,e Oo,d-od om),(Qty of R-d-od) O,do, Numb¢ x1 ooe1vwS6 01JM 15, m0 0651 AM (PET) mt to I ' " RR I,-Ag,-^ '^^I, ICC No o tths ,Aodomo,, o ALM,, peodomo-by any Ot Party o[AAmboemdmho[vsd Mglo-o,IA-, and,yodwg GMIRISAd ANY VNAUTHO OLDER REPROD UCIION OR D ISIRIEUTIO N IS A VIOLATION OP THE FED ERAL COPYRIGHT 11 AND THE LICENSE A G RE EM ENT. AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER GAS PIPING INSTALLATIONS TABLE 402.4(26) SCHEDULE 40 METALLIC PIPE Gas Undiluted Propane inlet ressure I 10 0 psi ressure Dropla 0 psi pectic uraviryl INTENDED USE Pipe sizing between first stage (high-pressure regulator) and second stage (low-pressure regulator). PIPE SIZE (inch) Nominal 'Iz '14 1 1'14 1IS 2 2% 3 4 Actual ID 0.622 0.824 1.049 1.380 1.610 2.067 2.469 3.068 4.026 Length (ft) Capacity in Thousands of Btu per Hour 10 5,890 12,300 23,200 47,600 1 71,300 137,000 219,000 387,000 789,000 20 4,050 8,460 15,900 32,700 49,000 94,400 150,000 266,000 543,000 30 3,250 6,790 12,800 26,300 39,400 75,800 121,000 214,000 436,000 40 2,780 5,810 11,000 22,500 33,700 64,900 103,000 183,000 373,000 50 2,460 5,150 9,710 19,900 29,900 57,500 91,600 162,000 330,000 60 2,230 4,670 8,790 18,100 27,100 52,100 83,000 147,000 299,000 70 2,050 4,300 8,090 16,600 24,900 47,900 76,400 135,000 275,000 80 1,910 4,000 7,530 15,500 23,200 44,600 71,100 126,000 256,000 90 1,790 3,750 7,060 14,500 21,700 41,800 66,700 118,000 240,000 100 1,690 3,540 6,670 13,700 20,500 39,500 63,000 111,000 227,000 125 1,500 3,140 5,910 12,100 18,200 35,000 55,800 98,700 201,000 150 1,360 2,840 5,360 11,000 16,500 31,700 50,600 89,400 182,000 175 1,250 2,620 4,930 10,100 15,200 29,200 46,500 82,300 167,800 200 1,160 2,430 4,580 9,410 14,100 27,200 43,300 76,500 156,100 250 1,030 2,160 4,060 8,340 12,500 24,100 38,400 67,800 138,400 300 935 1,950 3,680 7j60 11,300 21,800 34,800 61,500 125,400 350 860 1,800 3,390 6950 10,400 20,100 32,000 56,500 115,300 400 800 1,670 3,150 6,470 9,690 18,700 29,800 52,600 107,300 450 751 1,570 2,960 6,070 9,090 17,500 27,900 49,400 100700 500 709 1,480 2,790 5,730 8,590 16,500 26,400 46,600 95,100 550 673 1,410 2,650 5,450 8,160 15,700 25,000 44,300 90,300 600 642 1,340 2,530 5;200 7,780 15,000 23,900 42,200 86;200 650 615 1,290 2,420 4980 7,450 14,400 22,900 40,500 82j00 700 591 1,240 2,330 4,780 7,160 13,800 22,000 38,900 79,300 750 569 1,190 2,240 4,600 6,900 13,300 21,200 37,400 76,400 800 550 1,150 2,170 4,450 6,660 12,800 20,500 36,200 73,700 850 532 1,110 2,100 4,300 6,450 12,400 19,800 35,000 71,400 900 516 1,080 2,030 4,170 6,250 12,000 19,200 33,900 69;200 950 501 1,050 1,970 4,050 6,070 11,700 18,600 32,900 67:200 1,000 487 1,020 1,920 3940 5,900 11,400 18,100 32,000 65,400 1,100 463 968 1,820 3,740 5,610 10,800 17,200 30,400 62,100 1,200 442 923 1,740 3j70 5,350 10,300 16,400 29,000 59;200 1,300 423 884 1,670 3,420 5,120 9,870 15,700 27,800 56,700 1,400 406 849 1,600 3280 4,920 9,480 15,100 26,700 54,500 1,500 391 818 1,540 3,160 4,740 9,130 14,600 25,700 52,500 1,600 378 790 1,490 3,060 4,580 8,820 14,100 24,800 50,700 1,700 366 765 1,440 2960 4,430 8,530 13,600 24,000 49,000 1,800 355 ]41 1,400 2,870 4,300 8,270 13,200 23,300 4],600 1y00 344 720 1,360 2,780 4,170 8,040 12,800 22,600 46 1.00 2,000 335 700 1,320 2,710 4,060 7,820 12,500 22,000 44y00 For SI 1 inch =25 4 Earn, 1 foot =304 8 min, 1 pound per square inch=6 895 kits, 1-inch water column -0 2488 kits, 1 Brhsh thermal umt per hour =0 2931 W, 1 cubic foot per horn- 0 0283 m'/h, 1 degree= 0 01745 rad Note: Table entries have been rounded to three 9gmtrcant digits 2018 INTERNAT10NAL FUEL GAS CODE® 57 I " ' CopynghtOo2.017 ICC ALL RIGHTS RESERVED A-LDd by H®Ih¢ Van Dme(Rv O,,epfnmda od om),(Qty of FRmdNmod)O[do,N=b,,*1008170S6 ocJM 15, m0 0651 AM (PET) mt to ( Lie Affiee^®t'^^I, ICC No fwN¢ [,Aodomoo. m AtOo, Pepeodomo-by any Ot Party o, Axmboemd,Oo[vsd M glo- ody mpyncg and ,yodwgp,oIRbAd ANY VNAVTHO RIVER REPRODUCTION OR DISIRIBVTIO N IS A VIOLATION OF THE FEDERAL COPYRIGHT ACT AND THE LICENSE AGREEMENT. AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER GAS PIPING INSTALLATIONS TABLE 402.4(27) SCHEDULE 40 METALLIC PIPE Gas Undiluted Propane I inletressure psi ressure wropi 1 0 psi Specific uraviryl INTENDED USE Pipe sizing between 2 psig service and line pressure regulator. PIPE SIZE (inch) Nominal " '14 1 PI4 Plz 2 2% 3 4 Actual ID 0.622 0.824 1.049 1.380 1.610 2.067 2.469 3.068 4.026 Length (ft) Capacity in Thousands of Btu per Hour 10 2,680 5,590 10,500 21,600 32,400 62,400 99,500 176,000 359,000 20 1,840 3,850 7,240 14,900 22,300 42,900 68,400 121,000 247,000 30 1,480 3,090 5,820 11,900 17,900 34,500 54,900 97,100 198,000 40 1260 2,640 4,980 10,200 15,300 29,500 47,000 83,100 170,000 50 1,120 2,340 4,410 9,060 13,600 26,100 41,700 73,700 150,000 60 1,010 2,120 4,000 8,210 12,300 23,700 37,700 66,700 136,000 70 934 1,950 3,680 7,550 11,300 21,800 34,700 61,400 125,000 80 869 1,820 3,420 7,020 10,500 20,300 32,300 57,100 116,000 90 815 1,700 3,210 6,590 9,880 19,000 30,300 53,600 109,000 100 770 1,610 3,030 6,230 9,330 18,000 28,600 50,600 103,000 125 682 1,430 2,690 5,520 8,270 15,900 25,400 44900 91,500 150 618 1,290 2,440 5,000 7,490 14,400 23,000 40,700 82,900 175 569 1,190 2,240 4,600 6,890 13,300 21,200 37,400 76,300 200 529 1,110 2,080 4,280 6,410 12,300 19,700 34,800 71,000 250 469 981 1,850 3,790 5,680 10,900 17,400 30,800 62,900 300 425 889 1,670 3,440 5,150 9,920 15,800 27900 57,000 350 391 817 1,540 3,160 4,740 9,120 14,500 25,700 52,400 400 364 760 1,430 2,940 4,410 8,490 13,500 23900 48,800 450 341 714 1,340 2,760 4,130 7,960 12,700 22,400 45,800 500 322 674 1,270 2,610 3,910 7,520 12,000 21;200 43,200 550 306 640 1,210 2,480 3,710 7,140 11,400 20,100 41,100 600 292 611 1,150 2,360 3,540 6,820 10,900 19;200 39,200 650 280 585 1,100 2,260 3,390 6,530 10,400 18,400 37,500 700 269 562 1,060 2,170 3,260 6,270 9,990 17,700 36,000 750 259 541 1,020 2,090 3,140 6,040 9,630 17,000 34,700 800 250 523 985 2,020 3,030 5,830 9,300 16,400 33,500 850 242 506 953 1,960 2,930 5,640 9,000 15900 32,400 900 235 490 924 1,900 2,840 5,470 8,720 15,400 31,500 950 228 476 897 1,840 2,760 5,310 8,470 15,000 30,500 1,000 222 463 873 1,790 2,680 5,170 8,240 14,600 29,700 1,100 210 440 829 1,700 2,550 4,910 7,830 13,800 28,200 1,200 201 420 791 1,620 2,430 4,680 7,470 13;200 26,900 1,300 192 402 757 1,550 2,330 4,490 7,150 12,600 25,800 1,400 185 386 727 1,490 2,240 4,310 6,870 12,100 24,800 1,500 178 372 701 1,440 2,160 4,150 6,620 11,700 23,900 1,600 172 359 677 1,390 2,080 4,010 6,390 11,300 23,000 1,700 166 348 655 1,340 2,010 3,880 6,180 10900 22,300 1,800 161 3T 635 1,300 1y50 3,]60 6,000 10,600 21,600 1,900 157 327 617 1,270 1,900 3,650 5,820 10,300 21,000 2,000 152 318 600 1,230 1,840 3,550 5,660 10,000 20,400 For SI 1 inch= 25 4 min, 1 foot =304 8 mm, 1 pound per square inch = 6 895 kPa, 1-inch water column= 0 2488 kPa, 1 British thermal unit per hour= 0 2931 W, 1 cubic foot per hour= 0 0283 m'/h, 1 degree = 0 01745 End Note: Table entries have been rounded to three significant digits 58 2018 INTERNATIONAL FUEL GAS CODE® RTS' Copyaght Oo 2017 ICC ALL RIGHTS RESERVED A-LDd by H®Ih¢ Van DmA(Rv O,,e Oo,dA od om),(Qty of FRmdNmod) O[do, Nomb,,*10081vwS6 01JM 15, m0 0651 AM (PET) mt to I ( " RR 1, Ag,'^^I, ICC No otths,Aodomo,,oALM,, gAodomo,, by any Ot Party o[AAmboem dmho[vsd Mglo-o,IA-, and,yodwg GMIRISAd ANY VNAVTHO OLDER REPROD VCIION OR DISTRIBUTE. N IS A VIOLATION OP THE FED ERAL COPYRIGHT 11 AND THE LICENSE A G RE EM ENT. AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER GAS PIPING INSTALLATIONS TABLE 402.4(28) Gas Undiluted Propane SCHEDULE 40 METALLIC PIPE Inlet Pressure 11 0 in w c Pressure Drop 0 bin w c Specific Gravityl 1 50 INTENDED USE Pipe sizing between single- or second -stage (low pressure) regulator and appliance. PIPE SIZE (inch) Nominal 'Iz '14 1 1'14 1% 2 2% 3 4 Actual ID 0.622 0.824 1.049 1.380 1.610 2.067 2.469 3.068 4.026 Length (ft) Capacity in Thousands of Btu per Hour 10 291 608 1,150 2,350 3,520 6,790 10,800 19,100 39,000 20 200 418 787 1,620 2,420 4,660 7,430 13,100 26,800 30 160 336 632 1,300 1,940 3,750 5,970 10,600 21,500 40 137 287 541 1,110 1,660 3,210 5,110 9,030 18,400 50 122 255 480 985 1,480 2,840 4,530 8,000 16,300 60 110 231 434 892 1,340 2,570 4,100 7,250 14,800 80 101 212 400 821 1,230 2,370 3,770 6,670 13,600 100 94 197 372 763 1,140 2,200 3,510 6,210 12,700 125 89 185 349 716 1,070 2,070 3,290 5,820 11,900 150 84 175 330 677 1,010 1,950 3,110 5,500 11,200 175 74 155 292 600 899 1,730 2,760 4,880 9,950 200 67 140 265 543 814 1,570 2,500 4,420 9,010 250 62 129 243 500 749 1,440 2,300 4,060 8,290 300 58 120 227 465 697 1,340 2,140 3,780 7,710 350 51 107 201 412 618 1,190 1,900 3,350 6,840 400 46 97 182 373 560 1,080 1,720 3,040 6,190 450 42 89 167 344 515 991 1,580 2,790 5,700 500 40 83 156 320 479 922 11,470 2,600 5,300 550 37 78 146 300 449 865 1,380 2,440 4,970 600 35 73 138 283 424 817 1,300 2,300 4,700 650 33 70 131 269 403 776 1,240 2,190 4,460 700 32 66 125 257 385 741 1,180 2,090 4,260 750 30 64 120 246 368 709 1,130 2,000 4,080 800 29 61 115 236 354 681 1,090 1,920 3,920 850 28 59 111 227 341 656 1,050 1,850 3,770 900 27 57 107 220 329 634 1,010 1,790 3,640 950 26 55 104 213 319 613 978 1,730 3,530 1,000 25 53 100 206 309 595 948 1,680 3,420 1,100 25 52 97 200 300 578 921 1,630 3,320 1,200 24 50 95 195 292 562 895 1,580 3,230 1,300 23 48 90 185 277 534 850 1,500 3,070 1,400 22 46 86 176 264 509 811 1,430 2,930 1,500 21 44 82 169 253 487 777 1,370 2,800 1,600 20 42 79 162 243 468 746 1,320 2,690 1,700 19 40 76 156 234 451 719 1,270 2,590 1,800 19 39 74 151 226 436 694 1,230 2,500 1,900 18 38 71 146 219 422 672 1,190 2,420 2,000 18 37 69 142 212 409 652 1,150 2,350 For SI 1 inch= 25 4 mm, 1 foot= 304 8 mm, 1 pound per square inch= 6 895 kft 1-inch water column = 0 2488 kPa, 1 British thermal unit per hour = 0 2931 W, 1 cubic foot per hour = 0 0283 m'/h, 1 degree = 0 01745 Tad Note: Table entries have been rounded to three significant digits 2018 INTERNAT10NAL FUEL GAS CODE® 59 I " ' CITFIght @ 2017 ICC ALL RIGHTS RESERVED A-LDd by H®Ih¢ Van Dme(Rv O,,e pooch od om),(Qty of FRmdNmod) O[do, Nomb,,*1008170S601 JM 15, m0 0651 AM (PET) mt to ( Lie Affiee^®t'^^I, ICC No fwN¢ [,Aodomoo. m ALM,, gAodomo,, by any Ot Party o, Axmboemdmho[vsd M glo- ody mpyncg and ,yodwgp,oIRbAd ANY VNAUTHO RIVER REPRODUCTION OR DISTRIBUTION IS VIOLATION OF THE FEDERAL COPYRIGHT ACT AND THE LICENSE AGREEMENT. AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER GAS PIPING INSTALLATIONS TABLE 402.4(29) SEMIRIGID COPPER TUBING Gas Undiluted Propane inlet ressure I 10 0 psi ressure Drop I 1 0 psi Specific Gravityl INTENDED USE Sizing between first stage (high-pressure regulator) and second stage (low-pressure regulator). TUBE SIZE (in.) Nominal KS:L 'Ia 'la Yz 'la 1 1'Ia 1Yz 2 ACR 'la I S '1a '1a 71a 'la 1Ya 1'la Outside 0.375 0.500 0.625 0.750 0.875 1.125 1.375 1.625 2.125 Inside 0.305 0.402 0.527 0.652 0.745 0.995 1.245 1.481 1.959 Length (ft) Capacity in Thousands of Btu per Hour 10 513 1,060 2,150 3,760 5,330 11,400 20,500 32,300 67,400 20 352 727 1,480 2,580 3,670 7,830 14,100 22,200 46,300 30 283 584 1,190 2,080 2,940 6,290 11,300 17,900 37,200 40 242 500 1,020 1,780 2,520 5,380 9,690 15,300 31,800 50 215 443 901 1,570 2,230 4,770 8,590 13,500 28,200 60 194 401 816 1,430 2,020 4,320 7,780 12,300 25,600 70 179 369 751 1,310 1,860 3,980 7,160 11,300 23,500 80 166 343 699 1,220 1,730 3,700 6,660 10,500 21,900 90 156 322 655 1,150 1,630 3,470 6,250 9,850 20,500 100 147 304 619 1,080 1,540 3;1.80 5,900 9,310 19,400 125 131 270 549 959 1,360 2910 5,230 8,250 17,200 150 118 244 497 869 1,230 2,630 4,740 7,470 15,600 175 109 225 457 799 1,130 2,420 4,360 6,880 14,300 200 101 209 426 744 1,060 2;1.50 4,060 6,400 13,300 250 90 185 377 659 935 2,000 3,600 5,670 11,800 300 81 168 342 597 847 1,810 3,260 5,140 10,700 350 75 155 314 549 779 1,660 3,000 4,730 9,840 400 70 144 292 511 725 1,550 2,790 4,400 9,160 450 65 135 274 480 680 1,450 2,620 4,130 8,590 500 62 127 259 453 643 1J70 2,470 3,900 8,120 550 59 121 246 430 610 1,300 2,350 3,700 7,710 600 56 115 235 410 582 1;240 2,240 3,530 7,350 650 54 111 225 393 558 1,190 2,140 3,380 7,040 700 51 106 216 378 536 1,140 2,060 3,250 6,770 750 50 102 208 364 516 1,100 1,980 3,130 6,520 800 48 99 201 351 498 1,060 1,920 3,020 6,290 850 46 96 195 340 482 1,030 1,850 2,920 6,090 900 45 93 189 330 468 1,000 1,800 2,840 5,910 950 44 90 183 320 454 970 1,750 2,750 5,730 1,000 42 88 178 311 442 944 1,700 2,680 5,580 1,100 40 83 169 296 420 896 1,610 2,540 5,300 1,200 38 79 161 282 400 855 1,540 2,430 5,050 1,300 37 76 155 270 383 819 1,470 2,320 4,840 1,400 35 73 148 260 368 787 1,420 2,230 4,650 1,500 34 70 143 250 355 758 1,360 2,150 4,480 1,600 33 68 138 241 343 732 1,320 2,080 4,330 1,700 32 66 134 234 331 ]OS 1,270 2,010 4,190 1,800 31 64 130 227 321 68] 1,240 1,950 4,060 1,900 30 62 126 220 312 667 1,200 1,890 3,940 2,000 29 60 122 214 304 648 1,170 1,840 3,830 For SI 1 inch= 25 4 mm, 1 foot= 304 8 mm, 1 pound per square inch = 6 895 kPa, 1-inch water column = 0 2488 kPa, 1 British thermal unit per hour= 0 2931 W, 1 cubic foot per hour= 0 0283 m'/h, 1 degree= 0 01745 End Notes: 1 Table capacities are based on Type K copper tubing inside diameter (shown), which has the smallest inside diameter of the copper tubing products 2 Table entries have been rounded to three significant digits 60 2018 INTERNATIONAL FUEL GAS CODE® RTS' Copyaght Oo 2017 ICC ALL RIGHTS RESERVED A-LDd by H®Ih¢ Van DmA(Rv dme Oo,d-od om),(Qty of R-d-od) OTdo, Numb¢ x1 ooe1vwS6 01JM 15, m0 0651 AM (PET) mt to I ' " TTRR 1,-AgffiA-m Rt, ICC No otths[TAodomoo.m Aths Tepeodomo-by any Ot Party o[AAmboem-tho[vsd Mglo-o,IAo, and Mwodwg GMIRISAd ANY VNAVTHO OLDER REPROD VCIION OR D ISIRIEUTIO N IS A VIOLATION OP THE FED ERAL COPYRIGHT 11 AND THE LICENSE A G RE EM ENT. AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER GAS PIPING INSTALLATIONS TABLE 402.4(30) Gas Undiluted Propane SEMIRIGID COPPER TUBING Inlet Pressure 11 0 in w c Pressure Drop 0 bin w c Specific Gravityl 1 50 INTENDED USE Sizing between single or second stage (low-pressure regulator) and appliance. TUBE SIZE (inch) Nominal K&L '14 'IB 'Iz 'IB '14 1 P14 1'Iz 2 ACR 11. 'lz s1. E14 'le 1'le 1E1. Outside 0.375 0.500 0.625 0.750 0.875 1.125 1.375 1.625 2.125 Inside 0.305 0.402 0.527 0.652 0.745 0.995 1.245 1.481 1.959 Length (ft) Capacity in Thousands of Btu per Hour 10 45 93 188 329 467 997 1,800 2,830 5,890 20 31 64 129 226 321 685 1,230 1,950 4,050 30 25 51 104 182 258 550 991 1,560 3250 40 21 44 89 155 220 471 848 1,340 2,780 50 19 39 79 138 195 417 752 1,180 2,470 60 17 35 71 125 177 378 681 1,070 2,240 70 16 32 66 115 163 348 626 988 2,060 80 15 30 61 107 152 324 583 919 1,910 90 14 28 57 100 142 304 547 862 1,800 100 13 27 54 95 134 287 517 814 1,700 125 11 24 48 84 119 254 458 722 1,500 150 10 21 44 76 108 230 415 654 1,360 175 NA 20 40 70 99 212 382 602 1,250 200 NA 18 37 65 92 197 355 560 1,170 250 NA 16 33 58 82 175 315 496 1,030 300 NA 15 30 52 74 158 285 449 936 350 NA 14 28 48 68 146 262 414 861 400 NA 13 26 45 63 136 244 385 801 450 NA 12 24 42 60 127 229 361 752 500 NA 11 23 40 56 120 216 341 710 550 NA 11 22 38 53 114 205 324 674 600 NA 10 21 36 51 109 196 309 643 650 NA NA 20 34 49 104 188 296 616 700 NA NA 19 33 47 100 180 284 592 750 NA NA 18 32 45 96 174 274 570 800 NA NA 18 31 44 93 168 264 551 850 NA NA 17 30 42 90 162 256 533 900 NA NA 17 29 41 87 157 248 51] 950 NA NA 16 28 40 85 153 241 502 1,000 NA NA 16 27 39 83 149 234 488 1,100 NA NA 15 26 37 78 141 223 464 1,200 NA NA 14 25 35 75 135 212 442 1,300 NA NA 14 24 34 72 129 203 423 1,400 NA NA 13 23 32 69 124 195 407 1,500 NA NA 13 22 31 66 119 188 392 1,600 NA NA 12 21 30 64 115 182 378 1,700 NA NA 12 20 29 62 112 176 366 1,800 NA NA 11 20 28 60 108 170 355 1900 NA NA 11 19 27 58 105 166 345 2,000 NA NA 11 19 27 57 102 161 335 For SI 1 inch= 25 4 mm, 1 foot= 304 8 mm, 1 pound per square inch= 6 895 kft 1-inch water column = 0 2488 kPa, 1 British thermal unit per hour= 0 2931 W, 1 cubic foot per hour = 0 0283 m'/h, 1 degree = 0 01745 Tad Notes: 1 Table capacities are based on Type K copper tubing inside diameter (shown), which has the smallest inside diameter of the copper tubing products 2 NA means allow of less than 10,000 Btu/h 3 Table entries have been rounded to three significant digits 2018 INTERNAT10NAL FUEL GAS CODE® 61 I " ' CITFIght @ 2017 ICC ALL RIGHTS RESERVED A—LDd by H®Ih¢ Van DmA(Rv dme Oo,d—od om),(Qty of IFRmd—od) O[do, Nomb,,*10081vwS6 01JM 15, m0 0651 AM(PET)puTrvant to ( L—AAffiee^® Rt, ICC No fwN¢ [T Aodomoo. m AtO, odomo-by any Ot Party oT AAmboem-thomsd M glo— ody mpyncg and MwodwgL,oIRb¢Ad ANY VNAUTHO RIVER REPRODUCTION OR DISIRIBUTIO N IS A VIOLATION OF THE FEDERAL COPYRIGHT ACT AND THE LICENSE AGREEMENT. AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER GAS PIPING INSTALLATIONS TABLE 402.4(31) SEMIRIGID COPPER TUBING Gas Undiluted Propane inlet ressure psi ressure Drop I I u psi Specific Gravityl INTENDED USE Tube sizing between 2 psig service and line pressure regulator. TUBE SIZE (inch) Nominal KS:L 'Ia 'la 'Iz 'la "I 1 1'Ia 1'Iz 2 ACR % IS sJe EJa 'Ie 1'Ie 1EJe Outside 0.375 0.500 0.625 0.750 0.875 1.125 1.375 1.625 2.125 Inside 0.305 0.402 0.527 0.652 0.745 0.995 1.245 1.481 1.959 Length (H) Capacity in Thousands of Btu per Hour 10 413 852 1,730 3,030 4,300 9,170 16,500 26,000 54,200 20 284 585 1,190 2,080 2950 6,310 11,400 17,900 37,300 30 228 470 956 1,670 2J70 5,060 9,120 14,400 29,900 40 195 402 818 1,430 2,030 4,330 7,800 12,300 25,600 50 173 356 725 1,270 1,800 3,840 6,920 10,900 22,700 60 157 323 657 1,150 1,630 3,480 6,270 9,880 20,600 70 144 297 605 1,060 1,500 3,200 5,760 9,090 18,900 80 134 276 562 983 1,390 2,980 5,360 8,450 17,600 90 126 259 528 922 1,310 2,790 5,030 7,930 16,500 100 119 245 498 871 1,240 2,640 4,750 7,490 15,600 125 105 217 442 772 1,100 2,340 4,210 6,640 13,800 150 95 197 400 700 992 2,120 3,820 6,020 12,500 175 88 181 368 644 913 1,950 3,510 5,540 11,500 200 82 168 343 599 849 1,810 3,270 5,150 10,700 250 72 149 304 531 753 1,610 2,900 4,560 9,510 300 66 135 275 481 682 1,460 2,620 4,140 8,610 350 60 124 253 442 628 1,340 2,410 3,800 7,920 400 56 116 235 411 584 1,250 2,250 3,540 7,370 450 53 109 221 386 548 1,170 2,110 3,320 6,920 500 50 103 209 365 517 1,110 1,990 3,140 6,530 550 47 97 198 346 491 1,050 1,890 2980 6,210 600 45 93 189 330 469 1,000 1,800 2,840 5,920 650 43 89 181 316 449 959 1,730 2,720 5,670 700 41 86 174 304 431 921 1,660 2,620 5,450 750 40 82 168 293 415 888 1,600 2,520 5,250 800 39 80 162 283 401 857 1,540 2,430 5,070 850 37 77 157 274 388 829 1,490 2,350 4,900 900 36 75 152 265 376 804 1,450 2,280 4,750 950 35 72 147 258 366 781 1,410 2,220 4,620 1,000 34 71 143 251 356 760 1,370 2,160 4,490 1,100 32 67 136 238 338 721 1,300 2,050 4,270 1,200 31 64 130 227 322 688 1,240 1,950 4,070 1,300 30 61 124 217 309 659 1,190 1,870 3,900 1,400 28 59 120 209 296 633 1,140 1,800 3,740 1,500 27 57 115 201 286 610 1,100 1,730 3,610 1,600 26 55 111 194 276 589 1,060 1,670 3,480 1,700 26 53 108 188 26] 5]0 1,030 1,620 3,3]0 1,800 25 51 104 182 259 553 1,000 1,57 3,2]0 1,900 24 50 101 177 251 537 966 1,520 3,170 2,000 23 48 99 172 244 522 940 1,480 3,090 For SI 1 inch= 25 4 mm, 1 foot= 304 8 mm, 1 pound per square inch = 6 895 kPa, 1-inch water column = 0 2488 kPa, 1 British thermal unit per hour = 0 2931 W, 1 cubic foot per hour= 0 0283 m'/h, 1 degree= 0 01745 End Notes: 1 Table capacities are based on Type K copper tubing inside diameter (shown), which has the smallest inside diameter of the copper tubing products 2 Table entries have been rounded to three significant digits 62 2018 INTERNATIONAL FUEL GAS CODE® RTS' (Ap IghtOo2017ICC ALL RIGHTS RESERVED Awsedby H®Ih,,Vm Dm,(hvdmepf dAVod mm).(Qtyof PRmdAmod)O,d,,Nomb-1008170S6 ocJM 15.2@.0065oAM(PSr)puTrvmtto I ' " TTRR I.i Agffi,,Ath ICC NofwNs TTAodomoo oIf th, TgAodomo,,by anyth,d Partyo, AAmboem-thow.d &,ghA odA,o, and Mwodm,okb¢Ad ANY VNAVTHORIVED REPROD VCIION OR DISI RIB VTIONISA VIO CATION OP THE PEDEEALCOPYRIGHTACTAND THE L ICENSEA G RE EM ENT. AND RREJECTTO CIVILAND CRIMINAL PENALTIESTHEREVNDER GAS PIPING INSTALLATIONS TABLE 402.4(32) CORRUGATED STAINLESS STEEL TUBING (CSST) Gas Undiluted Propane Inlet Pressure 11 0 in w c Pressure Drop 0 bin w c Specific Gravityl 1 50 91 INTENDED USE: SIZING BETWEEN SINGLE- OR SECOND -STAGE (Low -Pressure) REGULATOR AND THE APPLIANCE SHUTOFF VALVE TUBE SIZE (EHD) Flow Designation 13 1 15 18 19 23 25 1 30 1 31 1 37 1 39 46 48 60 62 Length (ft) Capacity in Thousands of Btu per Hour 5 72 99 181 211 355 426 744 863 1,420 1,638 2,830 3,270 5,780 6,550 10 50 69 129 150 254 303 521 605 971 1,179 1,990 2,320 4,110 4,640 15 39 55 104 121 208 248 422 490 775 972 1,620 1,900 3,370 3,790 20 34 49 91 106 183 216 365 425 661 847 1,400 1,650 2,930 3,290 25 30 42 82 94 164 192 325 379 583 762 1,250 1,480 2,630 2,940 30 28 39 74 87 151 177 297 344 528 698 1,140 1,350 2,400 2,680 40 23 33 64 74 131 153 256 297 449 610 988 1,170 2,090 2,330 50 20 30 58 66 118 137 227 265 397 548 884 1,050 1,870 2,080 60 19 26 53 60 107 126 207 241 359 502 805 961 1,710 1,900 70 17 25 49 57 99 117 191 222 330 466 745 890 1,590 1,760 80 15 23 45 52 94 109 178 208 307 438 696 833 1,490 1,650 90 15 22 44 50 90 102 169 197 286 414 656 787 1,400 1,550 100 14 20 41 47 85 98 159 186 270 393 621 746 1,330 1,480 150 11 15 31 36 66 75 123 143 217 324 506 611 1,090 1,210 200 9 14 28 33 60 69 112 129 183 283 438 531 948 1,050 250 8 12 25 30 53 61 99 117 163 254 390 476 850 934 300 8 11 23 26 50 57 90 107 147 234 357 434 777 854 For SI 1 inch= 25 4 mm, 1 foot= 304 8 mm, 1 pound per square inch= 6 895 kft 1-inch water column = 0 2488 kPa, 1 British thermal unit per hour= 0 2931 W, 1 cubic foot per hour = 0 0283 m'/h, 1 degree = 0 01745 Tad Notes: 1 Table includes losses for four 90-degree bends and two end fittings Tubing runs with larger numbers of bends or fittings shall be increased by an equivalent length of tubing to the following equation L =1 3n where L is additional length (feet) of tubing and n is the number of additional fittings or bends 2 EHD-Equivalent Hydraulic Diameter, which is a measure of the relative hydraulic efficiency between different tubing sizes The greater the value of EHD, the greater the gas capacity of the tubing 3 Table entries have been rounded to three significant digits 2018 INTERNAT10NAL FUEL GAS CODE® 63 I " ' (Aryaght @ 2017 ICC ALL RIGHTS RESERVED A-LDd by H®Ih¢ Van Dme(Rv O,,e Oo,dwood om),(Qty of FRmdwood) O[do, Nomb,,*1008170S601 JM 15, m0 0651 AM (PET) mt to ( L-e Affiee^®t'^^I, ICC No fwN¢ [TAodomoo. m ALM,, ,Aodomo,, by any Ot Party o, Axmboemdmho[vsd M glo- ody mpyncg and ,yodwg L-ARIS ed ANY UNEARTHED RIVER REPRODUCTION OR DISIRIBITTO N IS A VIOLATION OF THE FEDERAL COPYRIGHT ACT AND THE LICENSE AGREEMENT. AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER GAS PIPING INSTALLATIONS TABLE 402.4(33) CORRUGATED STAINLESS STEEL TUBING (CSST) GaslUndiluted Propane miet Pressurelzpsi ressure Drop I 1 0 psi Specific Gravityl INTENDED USE: SIZING BETWEEN 2 PSI SERVICE AND THE LINE PRESSURE REGULATOR TUBE SIZE (EHD) Flow Designation 13 1 15 18 19 23 25 1 30 1 31 1 37 1 39 46 48 60 62 Length (ft) Capacity in Thousands of Btu per Hour 10 426 558 927 1,110 1,740 2,170 4,100 4,720 7,130 7,958 15,200 16,800 29,400 34,200 25 262 347 591 701 1,120 1,380 2,560 2,950 4,560 5,147 9,550 10,700 18,800 21,700 30 238 316 540 640 1,030 1,270 2,330 2,690 4,180 4,719 8,710 9,790 17,200 19,800 40 203 271 469 554 896 1,100 2,010 2,320 3,630 4,116 7,530 8,500 14,900 17,200 50 181 243 420 496 806 986 1,790 2,070 3,260 3,702 6,730 7,610 13,400 15,400 75 147 196 344 406 663 809 1,460 1,690 2,680 3,053 5,480 6,230 11,000 12,600 80 140 189 333 393 643 768 1,410 1,630 2,590 2,961 5,300 6,040 10,600 12,200 100 124 169 298 350 578 703 1,260 1,450 2,330 2,662 4,740 5,410 9,530 10,900 150 101 137 245 287 477 575 1,020 1,180 1,910 2,195 3,860 4,430 7,810 8,890 200 86 118 213 248 415 501 880 1,020 1,660 1,915 3,340 3,840 6,780 7,710 250 77 105 191 222 373 448 785 910 1,490 1,722 2,980 3,440 6,080 6,900 300 69 96 173 203 343 411 716 829 1,360 1,578 2,720 3,150 5,560 6,300 400 60 82 151 175 298 355 616 716 1,160 1,376 2,350 2,730 4,830 5,460 500 53 72 135 158 268 319 550 638 1,030 1,237 2,100 2,450 4,330 4,880 For SI 1 inch= 25 4 mm, 1 foot= 304 8 mm, 1 pound per square inch = 6 895kPa, 1-inch water column= 0 2488 kft 1 British thermal unit per hour = 0 293 1 W, 1 cubic foot per hour = 0 0283 m'/h, 1 degree = 0 01745 Tad Notes: 1 Table does not include effect of pressure drop across the line regulator Where regulator loss exceeds'/ psi (based on 13 in w c outlet pressure), DO NOT USE THIS TABLE Consult with the regulator manufacturer for pressure drops and capacity factors Pressure drops across a regulator may vary with flow rate 2 CAUTION Capacities shown in the table might exceed maximum capacity for a selected regulator Consult with the regulator or tubing manufacturer for guidance 3 Table includes losses for four 90-degree bends and two end fittings Tubing runs with larger numbers of bends or fittings shall be increased by an equivalent length of tubing to the following equation L =1 3n where L is additional length (feet) of tubing and n is the number of additional fittings or bends 4 ENDEquivalentHydraulic Diameter, which is a measure of the relative hydraulic efficiency between different tubing sizes The greater the value of END, the greater the gas capacity of the tubing 5 Table entries have been rounded to three significant digits 64 2018 INTERNATIONAL FUEL GAS CODE® RTS' Copyaght Oo 2.017 ICC ALL RIGHTS RESERVED A-LDd by H®Ih¢ Van Dme(Rv dme Oo,d-od om),(Qty of R-dwood) OTdo, Nomb,, x1 008170S601 JM 15, m0 0651 AM (GET) mt to I ' " TTRR LET Ag,-^ '^Rt, ICC Nootths[TAodomoo.m AthsTepeodomo-by any Ot Party o[ATmboem-tho[vsd Mglo-o,IAo, and Mwodwg GMIRISed ANY UNAUTHO OLDER REPROD UCIION OR D ISIRIEUTION IS VIOLATION OP THE FEDERAL COPYRIGHT 11 AND THE LICENSE A G RE EM ENT. AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER GAS PIPING INSTALLATIONS TABLE 402.4(34) CORRUGATED STAINLESS STEEL TUBING (CSST) Gas Undiluted Propane Inlet Pressurelb 0 psi Pressure Drop 3 5 psi Specific Gravityl 1 50 91 TUBE SIZE (EHD) Flow Designation 13 1 15 18 19 23 25 1 30 1 31 1 37 1 39 46 48 60 62 Length (ft) Capacity in Thousands of Btu per Hour 10 826 1,070 1,710 2,060 3,150 4,000 7,830 8,950 13,100 14,441 28,600 31,200 54,400 63,800 25 509 664 1,090 1,310 2,040 2,550 4,860 5,600 8,400 9,339 18,000 19,900 34,700 40,400 30 461 603 999 1,190 1,870 2,340 4,430 5,100 7,680 8,564 16,400 18,200 31,700 36,900 40 396 520 867 1,030 1,630 2,030 3,820 4,400 6,680 7,469 14,200 15,800 27,600 32,000 50 352 463 777 926 1,460 1,820 3,410 3,930 5,990 6,717 12,700 14,100 24,700 28,600 75 284 376 637 757 1,210 1,490 2,770 3,190 4,920 5,539 10,300 11,600 20,300 23,400 80 275 363 618 731 1,170 1,450 2,680 3,090 4,770 5,372 9,990 11,200 19,600 22,700 100 243 324 553 656 1,050 1,300 2,390 2,760 4,280 4,830 8,930 10,000 17,600 20,300 150 196 262 453 535 866 1,060 1,940 2,240 3,510 3,983 7,270 8,210 14,400 16,600 200 169 226 393 464 755 923 1,680 1,930 3,050 3,474 6,290 7,130 12,500 14,400 250 150 202 352 415 679 828 1,490 1,730 2,740 3,124 5,620 6,390 11,200 12,900 300 136 183 322 379 622 757 1,360 1,570 2,510 2,865 5,120 5,840 10,300 11,700 400 117 158 279 328 542 657 1,170 1,360 2,180 2,498 4,430 5,070 8,920 10,200 500 104 140 251 294 488 589 1,050 1,210 1,950 2,247 3,960 4,540 8,000 9,110 For SI 1 inch= 25 4 mm, 1 foot= 304 8 mm, 1 pound per square inch= 6 895 kft 1-inch water column = 0 2488 kPa, 1 British thermal unit per hour= 0 2931 W, 1 cubic foot per hour = 0 0283 m'/h, 1 degree = 0 01745 Fact Notes: 1 Table does not include effect of pressure drop across line regulator Where regulator loss exceeds 1 psi, DO NOT USE THIS TABLE Consult with the regulator manufacturer for pressure drops and capacity factors Pressure drop across regulator may vary with the flow rate 2 CAUTION Capacities shown in the table might exceed maximum capacity of selected regulator Consultwith the tubing manufacturer for guidance 3 Table includes losses for four 90-degree bends and two end fittings Tubing runs with larger numbers of bends or fittings shall be increased by an equivalent length of tubing to the following equation L =1 3n where L is additional length (feet) of tubing and n is the number of additional fittings or bends 4 ENDEquivalentHydraulic Diameter, which is a measure of the relative hydraulic efficiency between different tubing sizes The greater the value of END, the greater the gas capacity of the tubing 5 Table entries have been rounded to three significant digits 2018 INTERNAT10NAL FUEL GAS CODE® 65 I " ' (Aryaght @ 2017 ICC ALL RIGHTS RESERVED A-LDd by H®Ih¢ Van Dme(Rv dme Oo,dwood om),(Qty of FRmdwood) O[do, Nomb,,*1008170S601 JM 15, m0 0651 AM (PET) t to ( L-e Affiee^® Rt, ICC No fwN¢ [TAodomoo, m fwih¢ Pepeodomo-by any Ot Party o, Axmboem-thomsd M glo- ody mpyncg and Mwodwg L-IRIS ed ANY UNEARTHED RIVER REPRODUCTION OR DISTRIBUTION IS VIOLATION OF THE FEDERAL COPYRIGHT ACT AND THE LICENSE AGREEMENT. AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER GAS PIPING INSTALLATIONS TABLE 402.4(35) POLYETHYLENE PLASTIC PIPE Gas Undiluted Propane inlet ressure I 1 0 in w c ressure Drop 0 5in w c Specific Gravityl INTENDED USE PE pipe sizing between integral two -stage regulator at tank or second stage (low-pressure regulator) and building. PIPE SIZE (inch) Nominal OD 11, '14 1 1'14 ill, 2 3 4 Designation SDR 9 SDR 11 SDR 11 SDR 10 SDR 11 SDR 11 SDR 11 SDR 11 Actual ID 0.660 0.860 1.077 1.328 1.554 1.943 2.864 3.682 Length (ft) Capacity in Thousands of Btu per Hour 10 340 680 1,230 2,130 3,210 5,770 16,000 30,900 20 233 468 844 1,460 2,210 3,970 11,000 21,200 30 187 375 677 1,170 1,770 3,180 8,810 17,000 40 160 321 580 1,000 1,520 2,730 7,540 14,600 50 142 285 514 890 1,340 2,420 6,680 12,900 60 129 258 466 807 1,220 2,190 6,050 11,700 70 119 237 428 742 1,120 2,010 5,570 10,800 80 110 221 398 690 1,040 1,870 5,180 10,000 90 103 207 374 648 978 1,760 4,860 9,400 100 98 196 353 612 924 1,660 4,590 8,900 125 87 173 313 542 819 1,470 4,070 7,900 150 78 157 284 491 742 1,330 3,690 7,130 175 72 145 261 452 683 1,230 3,390 6,560 200 67 135 243 420 635 1,140 3,160 6,100 250 60 119 215 373 563 1,010 2,800 5,410 300 54 108 195 338 510 916 2,530 4,900 350 50 99 179 311 469 843 2,330 4,510 400 46 92 167 289 436 784 2,170 4,190 450 43 87 157 271 409 736 2,040 3,930 500 41 82 148 256 387 695 1,920 3,720 For SI 1 inch= 25 4 ram, 1 foot= 304 8 ram, 1 pound per square inch = 6 895 kPa, 1-inch water column = 0 2488 kPa, 1 British thermal unit per hour= 0 2931 W, 1 cubic foot per hour= 0 0283 m'/h, 1 degree= 0 01745 End Note: Table entries have been rounded to three significant digits 66 2018 INTERNATIONAL FUEL GAS CODE® RTS' Copyaght Oo 2.017 ICC ALL RIGHTS RESERVED A-LDd by H®Ih¢ Van Dme(Rv O,,e pooch od om),(Qty of FRmdNmod)O[do, Nomb,,*1008170S601 JM 15. ZMO 0651 AM (GET) mt to I ' " RR 1, Ag,'^^I, ICC No o tths ,Aodomoam ALM,, Aodomo,, by any Ot Party o[Axmboemdmho[vsd Mglo-o,IA-, and,yodwg GMIRISed ANY VNAVTHO OLDER REPROD VCIION OR D ISIRIEUTIO N IS A VIOLATION OP THE FED ERAL COPYRIGHT 11AND THE LICENSE A G RE EM ENT. AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER GAS PIPING INSTALLATIONS TABLE 402.4(36) i Gas Undiluted Propane POLYETHYLENE PLASTIC PIPE I Inlet Pressure 2 0 psi Pressure Drop 11 0 psi Specific Gravityl 1 50 INTENDED USE PE pipe sizing between 2 psig service regulator and line pressure regulator. PIPE SIZE (inch) Nominal DID 'Iz '14 1 1'14 1'Iz 2 3 4 Designation SDR 9 SDR 11 SDR 11 SDR 10 SDR 11 SDR 11 SDR 11 SDR 11 Actual ID 0.660 0.860 1.077 1.328 1.554 1.943 2.864 3.682 Length Ill) Capacity in Thousands of Btu per Hour 10 3,130 6,260 11,300 19,600 29,500 53,100 147,000 284,000 20 2,150 4,300 7,760 13,400 20,300 36,500 101,000 195,000 30 1,730 3,450 6,230 10,800 16,300 29,300 81,100 157,000 40 1,480 2,960 5,330 9,240 14,000 25,100 69,400 134,100 50 1,310 2,620 4,730 8,190 12,400 22,200 61,500 119,000 60 1,190 2,370 4,280 7,420 11,200 20,100 55,700 108,000 70 1,090 2,180 3,940 6,830 10,300 18,500 51,300 99,100 80 1,010 2,030 3,670 6,350 9,590 17,200 47,700 92,200 90 952 1,910 3,440 5,960 9,000 16,200 44,700 86,500 100 899 1,800 3,250 5,630 8,500 15,300 42,300 81,700 125 797 1,600 2,880 4,990 7,530 13,500 37,500 72,400 150 722 1,450 2,610 4,520 6,830 12,300 33,900 65,600 175 664 1,330 2,400 4,160 6,280 11,300 31,200 60,300 200 618 1,240 2,230 3,870 5,840 10,500 29,000 56,100 250 548 1,100 1,980 3,430 5,180 9,300 25,700 49,800 300 496 994 1,790 3,110 4,690 8,430 23,300 45,100 350 457 914 1,650 2,860 4,320 7,760 21,500 41,500 400 425 851 1,530 2,660 4,020 7,220 12,000 38,600 450 399 798 1,440 2,500 3,770 6,770 18,700 36,200 500 377 754 1,360 2,360 3,560 6,390 17,700 34,200 550 358 716 1,290 2,240 3,380 6,070 16,800 32,500 600 341 683 1,230 2,140 3,220 5,790 16,000 31,000 650 327 654 1,180 2,040 3,090 5,550 15,400 29,700 700 314 628 1,130 1,960 2,970 5,330 14,700 28,500 750 302 605 1,090 1,890 2,860 5,140 14,200 27,500 800 292 585 1,050 1,830 2,760 4,960 13,700 26,500 850 283 566 1,020 1,770 2,670 4,800 13,300 25,700 900 274 549 990 1,710 2,590 4,650 12,900 24,900 950 266 533 961 1,670 2,520 4,520 12,500 24,200 1,000 259 518 935 1,620 2,450 4,400 12,200 23,500 1,100 246 492 888 1,540 2,320 4,170 11,500 22,300 1,200 234 470 847 1,470 2,220 3,980 11,000 21,300 1,300 225 450 811 1,410 2,120 3,810 10,600 20,400 1,400 216 432 779 1,350 2,040 3,660 10,100 19,600 1,500 208 416 751 1,300 1,960 31530 91760 18,900 1,600 201 402 725 1,260 1,900 3,410 9,430 18,200 1,700 194 389 702 1,220 1,840 3,300 9,130 17,600 1,800 188 377 680 1,180 1,780 3,200 8,850 17,100 1,900 183 366 661 1,140 1,730 3,110 8,590 16,600 2,000 178 356 643 1,110 1,680 3,020 8,360 16,200 For SI 1 inch = 25 4 mm, 1 foot =304 8 Form, 1 pound per square inch= 6 895 kPa, 1-inch water column = 0 2488 kPa, 1 British thermal unit per hour= 0 2931 W, 1 cubic foot per hour = 0 0283 m'/h, 1 degree = 0 01745 Tad Note: Table entries have been rounded to three significant digits 2018 INTERNAT10NAL FUEL GAS CODE® 67 I " ' CITFIght @ 2017 ICC ALL RIGHTS RESERVED A-LDd by H®Ih¢ Van Dme(Rv O,,e Oo,d-od om),(Qty of FRmdwood) O[do, Nomb,,*1008170S601 JM 15, m0 0651 AM (PET) mt to ( L-e Affiee^®t'^^I, ICC No fwN¢ [,Aodomoo. m ALM,, Pepeodomo-by any Ot Party o, Axmboemdmho[vsd M glo- ody mpyncg and ,yodwgp,oIRbAd ANY VNAUTHO RIVER REPRODUCTION OR DISTRIBUTION IS VIOLATION OF THE FEDERAL COPYRIGHT ACT AND THE LICENSE AGREEMENT. AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER GAS PIPING INSTALLATIONS TABLE 402.4(37) POLYETHYLENE PLASTIC TUBING Gas Undiluted Propane inlet ressure I 1 0 in w c ressure Drop 0 5in w c Specific Gravityl INTENDED USE PE pipe sizing between integral two -stage regulator at tank or second stage (low-pressure regulator) and building. Plastic Tubing Size (CTS) (inch) Nominal DID 11, 1 Designation Actual Length apace y in uumic rem or uas per mour 10 121 828 20 83 569 30 67 457 40 57 391 50 51 347 60 46 314 70 42 289 80 39 269 90 37 252 100 35 238 125 31 211 150 28 191 175 26 176 200 24 164 225 22 154 250 21 145 275 20 138 300 19 132 350 18 121 400 16 113 450 15 106 500 15 100 For SI 1 inch= 25 4 ram, 1 foot =304 8 ram, 1 pound per square inch = 6 895 kPa, 1-inch water column = 0 2488 kft 1 British thermal unit per hour= 0 293 1 W, 1 cubic foot per hour= 0 0283 m'/h, 1 degree= 0 0 1745 End Note: Table entries have been rounded to three significant digits 68 2018 INTERNATIONAL FUEL GAS CODE® RTS' Copyaght Oo 2.017 ICC ALL RIGHTS RESERVED A—LDd by H®Ih¢ Van Dme(Rv O,,e pooch od om),(Qty of FRmdNmod)O[do, Nomb,,*1008170S601 JM 15, ZMO 0651 AM (GET) mt to I ( " RR 1,i AgffiemtaW, ICC No otth,,Aodomo,,oALM,, gAodomo,, by any Ot Party o,Axmboem,Ood Mglo—o,IA-, and,yodwg GMIRISed ANY VNAVTHO OLDER REPROD VCIION OR DISTRIBUTE. N IS A VIOLATION OP THE FED ERAL COPYRIGHT 11 AND THE LICENSE A G RE EM ENT. AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER GAS PIPING INSTALLATIONS SECTION 403 (IFGS) PIPING MATERIALS 403.1 General. Materials used for piping systems shall com- ply with the requirements of this chapter or shall be approved 403.2 Used materials. Pipe, fittings, valves and other materi- als shall not be used again except where they are free of for- eign materials and have been ascertained to be adequate for the service intended 403.3 Other materials. Material not covered by the stan- dards specifications listed herein shall be investigated and tested to determine that it is safe and suitable for the proposed service, and, in addition, shall be recommended for that ser- vice by the manufacturer and shall be approved by the code official 403.4 Metallic pipe. Metallic pipe shall comply with Sec- tions 403 4 1 through 403 4 4 403.4.1 Cast iron. Cast-iron pipe shall not be used 403.4.2 Steel Steel, stainless steel and wrought -iron pipe shall be not lighter than Schedule 10 and shall comply with the dimensional standards of ASME B36 IOM and one of the following standards 1 ASTM A53/A53M 2 ASTM A106 3 ASTM A312 403.4.3 Copper and copper alloy. Copper and copper alloy pipe shall not be used if the gas contains more than an average of 0 3 grams of hydrogen sulfide per 100 stan- dard cubic feet of gas (0 7 milligrams per 100 liters) Threaded copper, copper alloy and aluminum -alloy pipe shall not be used with gases corrosive to such materials 403.4.4 Aluminum. Alummum-alloy pipe shall comply with ASTM B241 except that the use of alloy 5456 is pro- hibited Aluminum -alloy pipe shall be marked at each end of each length indicating compliance Aluminum -alloy pipe shall be coated to protect against external corrosion where it is in contact with masonry, plaster or insulation, or is subject to repeated wettings by such liquids as water, detergents or sewage Aluminum -alloy pipe shall not be used in exterior locations or underground 403.5 Metallic tubing. Tubing shall not be used with gases corrosive to the tubing material 403.5.1 Steel tubing. Steel tubing shall comply with ASTM A254 403.5.2 Stainless steel. Stainless steel tubing shall comply with ASTM A268 or ASTM A269 403.5.3 Copper and copper alloy tubing. Copper tubing shall comply with Standard Type K or L of ASTM B88 or ASTM B280 Copper and copper alloy tubing shall not be used if the gas contains more than an average of 0 3 grams of hydro- gen sulfide per 100 standard cubic feet of gas (0 7 milli- grams per 100 liters) 403.5.4 Aluminum tubing Aluminum -alloy tubing shall comply with ASTM B210 or ASTM B241 Aluminum - alloy tubing shall be coated to protect against external cor- rosion where it is in contact with masonry, plaster or msu- lation, or is subject to repeated wettings by such liquids as water, detergent or sewage Aluminum -alloy tubing shall not be used in exterior locations or underground 403.5.5 Corrugated stainless steel tubing. Corrugated stainless steel tubing shall be listed in accordance with ANSI LC 1/CSA 6 26 403.6 Plastic pipe, tubing and fittings. Polyethylene plastic pipe, tubing and fittings used to supply fuel gas shall conform to ASTM D2513 Such pipe shall be marked "Gas" and "ASTM D2513 " Polyamide pipe, tubing and fittings shall be identified and conform to ASTM F2945 Such pipe shall be marked "Gas" and "ASTM F2945 " Polyvinyl chloride (PVC) and chlorinated polyvinyl chlo- ride (CPVC) plastic pipe, tubing and fittings shall not be used to supply fuel gas 403.6.1 Anodeless risers. Plastic pipe, tubing and anodeless risers shall comply with the following 1 Factory -assembled anodeless risers shall be recom- mended by the manufacturer for the gas used and shall be leak tested by the manufacturer in accor- dance with written procedures Service head adapters and field -assembled anodeless risers incorporating service head adapters shall be recommended by the manufacturer for the gas used, and shall be designed and certified to meet the requirements of Category I of ASTM D2513, and U S Department of Transportation, Code of Federal Regulations, Title 49, Part 192281(e) The manu- facturer shall provide the user with qualified instal- lation instructions as prescribed by the U S Department of Transportation, Code of Federal Reg- ulations, Title 49, Part 192 283(b) 403.6.2 LP -gas systems. The use of plastic pipe, tubing and fittings in undiluted liquefied petroleum gas piping systems shall be in accordance with NFPA 58 403.6.3 Regulator vent piping. Plastic pipe and fittings used to connect regulator vents to remote vent termma- tions shall be PVC conforming to ANSUUL 651 PVC vent piping shall not be installed indoors 403.7 Workmanship and defects. Pipe, tubing and fittings shall be clear and free from cutting burrs and defects in struc- ture or threading, and shall be thoroughly brushed, and chip and scale blown Defects in pipe, tubing and fittings shall not be repaired Defective pipe, tubing and fittings shall be replaced 403.8 Protective coating. Where in contact with material or atmosphere exerting a corrosive action, metallic piping and fittings coated with a corrosion -resistant material shall be used External or internal coatings or linings used on piping or components shall not be considered as adding strength 2018 INTERNATIONAL FUEL GAS CODE® 69 I I 1 I CALFIEIL @ 2017 ICC ALL RIGHTS RESERVED A—LDd by H®Ih¢ Van Dme(Rv dme pooch od om),(Dty of FRmdNmod)O[do, Nomb,,xl 008170S601 JM 15. ZMO 0651 AM (PET) Mt,b,mt to ( Lie Ag,, ^®'^Rt, ICC No fwN¢[TAodomoo.m AtO, goodomo- by any Ot Party o, Axmboemdm6o d Mglo—ody oTyncg and Nyodwg LARISAd ANY VNAVTHO RIVER REICLA VCTION OR DISIRIBITTO N IS A VIOLATION OF THE FEDERAL COPYRIGHT ACT AND THE LICENSE AGREEMENT. AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER GAS PIPING INSTALLATIONS 403.9 Metallic pipe threads. Metallic pipe and fitting threads shall be taper pipe threads and shall comply with ASME Bl 20 1 403.9.1 Damaged threads. Pipe with threads that are stripped, chipped, corroded or otherwise damaged shall not be used Where a weld opens during the operation of cutting or threading, that portion of the pipe shall not be used 403.9.2 Number of threads Field threading of metallic pipe shall be in accordance with Table 403 9 2 TABLE 403.9.2 SPECIFICATIONS FOR THREADING METALLIC PIPE IRON PIPE SIZE (inches) APPROXIMATE LENGTH OF THREADED PORTION (inches) APPROXIMATE NUMBER OF THREADS TO BE CUT I/2 f/4 10 3/4 3/4 10 1 10 11/4 1 11 11/2 1 11 2 1 11 21/2 11/2 12 3 11/2 12 4 1% 13 For SI 1 inch = 25 4 min 403.9.3 Thread joint compounds. Thread joint com- pounds shall be resistant to the action of liquefied petro- leum gas or to any other chemical constituents of the gases to be conducted through the piping 403.10 Metallic piping joints and fittings. The type of pip- ing joint used shall be suitable for the pressure -temperature conditions and shall be selected giving consideration to joint tightness and mechanical strength under the service condi- tions The joint shall be able to sustain the maximum end force caused by the internal pressure and any additional forces caused by temperature expansion or contraction, vibra- tion, fatigue or the weight of the pipe and its contents 403.10.1 Pipe joints. Schedule 40 and heavier pipe joints shall be threaded, flanged, brazed, welded or assembled with press -connect fittings listed in accordance with ANSI LC4/CSA 632 Pipe lighter than Schedule 40 shall be connected using press -connect fittings, flanges, brazing or welding Where nonferrous pipe is brazed, the brazing materials shall have a melting point in excess of 1,000°F (538°C) Brazing alloys shall not contain more than 0 05- percent phosphorus 403.10.2 Copper tubing joints. Copper tubing joints shall be assembled with approved gas tubing fittings, shall be brazed with a material having a melting point in excess of 1,000°F (538°C) or assembled with press -connect fittings listed in accordance with ANSI LC-4/CSA 6 32 Brazing alloys shall not contain more than 0 05-percent phospho- rus 403.10.3 Stainless steel tubing joints. Stainless steel tub- ing joints shall be welded, assembled with approved tub- ing fittings, brazed with a material having a melting point in excess of 1,000°F (578°C), or assembled with press - connect fittings listed in accordance with ANSI LC4/CSA 632 403.10.4 Flared joints. Flared joints shall be used only in systems constructed from nonferrous pipe and tubing where experience or tests have demonstrated that the joint is suitable for the conditions and where provisions are made in the design to prevent separation of the joints 403.10.5 Metallic fittings Metallic fittings shall comply with the following 1 Threaded fittings in sizes larger than 4 inches (102 mm) shall not be used 2 Fittings used with steel, stainless steel or wrought - iron pipe shall be steel, stainless steel, copper alloy, malleable iron or cast iron 3 Fittings used with copper or copper alloy pipe shall be copper or copper alloy 4 Fittings used with aluminum -alloy pipe shall be of alum mum alloy 5 Cast -lion fittings 5 1 Flanges shall be permitted 5 2 Bushings shall not be used 53 Fittings shall not be used in systems contain- ing flammable gas -air mixtures 54 Fittings in sizes 4 inches (102 mm) and larger shall not be used indoors except where approved 5 5 Fittings in sizes 6 inches (152 mm) and larger shall not be used except where approved 6 Alummum-alloy fittings Threads shall not form the joint seal 7 Zinc aluminum -alloy fittings Fittings shall not be used in systems containing flammable gas -air mix- tures 8 Special fittings Fittings such as couplings, propri- etary -type joints, saddle tees, gland -type compres- sion fittings and flared, flareless and compression - type tubing fittings shall be used within the fitting manufacturer's pressure -temperature recommenda- tions, used within the service conditions anticipated with respect to vibration, fatigue, thermal expansion and contraction, and shall be approved 9 Where pipe fittings are drilled and tapped in the field, the operation shall be in accordance with all of the following 91 The operation shall be performed on systems having operating pressures of 5 psi (34 5 kPa) or less 92 The operation shall be performed by the gas supplier or the gas supplier's designated rep- resentative 9 3 The drilling and tapping operation shall be performed in accordance with written proce- dures prepared by the gas supplier 70 2018 INTERNATIONAL FUEL GAS CODE® 1 1 1 TITTRRCopy'Eht Oo 2.017 ICC ALL RIGHTS RESERVED A—LDd by H®Ih¢ Van DmA(Rv dme Oo,dA od om),(Qty of FRmdNmod) O[do, N=b,, *1 008170S6 01 JM 15, m0 oc 51 AM (GET) mt to S I ( 1, sAg,e^ '^Rt, ICC No otths TAodomoo. m At6sodomo- by any Ot Party o[ AAmboemd,Oo[vsd Mgle —ooly o,and Nyodwg L-IRISAd ANY VNAVTHO OLDER REPROD VCIION OR D ISIRIEUTION IS VIOLATION OP THE FEDERAL COPYRIGHT 11 AND THE LICENSE A G RE EM EM. AND REJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER GAS PIPING INSTALLATIONS 9 4 The fittings shall be located outdoors 9 5 The tapped fitting assembly shall be inspected and proven to be free of leakage 403.11 Plastic pipe, joints and fittings. Plastic pipe, tubing and fittings shall be joined in accordance with the manufac- turer's instructions Such joint shall comply with the follow- ing 1 The joint shall be designed and installed so that the lon- gitudinal pull-out resistance of the joint will be greater than or equal to the tensile strength of the plastic piping material 2 Heat -fusion joints shall be made in accordance with qualified procedures that have been established and proven by test to produce gas-tightloints as strong as or stronger than the pipe or tubing being joined Joints shall be made with the joining method recommended by the pipe manufacturer Heat fusion fittings shall be marked "ASTM D2513 " 3 Where compression -type mechanical joints are used, the gasket material in the fitting shall be compatible with the plastic piping and with the gas distributed by the system An internal tubular rigid stiffener shall be used in conjunction with the fitting The stiffener shall be flush with the end of the pipe or tubing and shall extend to or beyond the outside end of the compression fitting when installed The stiffener shall be free of rough or sharp edges and shall not be a force -fit in the plastic Split tubular stiffeners shall not be used 4 Plastic piping joints and fittings for use in liquefied petroleum gas piping systems shall be in accordance with NFPA 58 403.12 Flanges. Flanges and flange gaskets shall comply with Sections 403 12 1 through 403 12 7 403.12.1 Cast iron. Cast-iron flanges shall be in accor- dance with ASME B16 1 403.12.2 Steel. Steel flanges shall be in accordance with ASME B16 5 or ASME B16 47 403.12.3 Nonferrous. Nonferrous flanges shall be in accordance with ASME B 16 24 403.12.4 Ductile iron. Ductile -iron flanges shall be in accordance with ASME B 16 42 403.12.5 Raised face. Raised face flanges shall not be joined to flat faced cast-iron, ductile -iron or nonferrous material flanges 403.12.6 Flange facings. Standard facings shall be per- mitted for use under this code Where 150-pound (1034 kPa) pressure -rated steel flanges are bolted to Class 125 cast-iron flanges, the raised face on the steel flange shall be removed 403.12.7 Lapped flanges. Lapped flanges shall be used only above ground or in exposed locations accessible for inspection 403.13 Flange gaskets. Material for gaskets shall be capable of withstanding the design temperature and pressure of the piping system, and the chemical constituents of the gas being conducted, without change to its chemical and physical prop- erties The effects of fire exposure to the joint shall be consid- ered in choosing material Acceptable materials include metal (plain or corrugated), composition, aluminum "O" rings, spi- ral wound metal gaskets, rubber -faced phenolic and elasto- meric Where a flanged joint is opened, the gasket shall be replaced Full -face flange gaskets shall be used with all non - steel flanges 403.13.1 Metallic gaskets. Metallic flange gaskets shall be in accordance with ASME B16 20 403.13.2 Nonmetallic gaskets. Nonmetallic flange gas- kets shall be in accordance with ASME B16 21 SECTION 404 (IFGC) PIPING SYSTEM INSTALLATION 404.1 Installation of materials. Materials used shall be installed in strict accordance with the standards under which the materials are accepted and approved In the absence of such installation procedures, the manufacturer's instructions shall be followed Where the requirements of referenced stan- dards or manufacturer's instructions do not conform to mmi- mum provisions of this code, the provisions of this code shall apply 404.2 CSST. CSST piping systems shall be installed in accordance with the terms of their approval, the conditions of listing, the manufacturer's instructions and this code 404.3 Prohibited locations. Piping shall not be installed in or through a ducted supply, return or exhaust, or a clothes chute, chimney or gas vent, dumbwaiter or elevator shaft Piping installed downstream of the point of delivery shall not extend through any townhouse unit other than the unit served by such piping 404.4 Piping in solid partitions and walls. Concealed pip- ing shall not be located in solid partitions and solid walls, unless installed in a chase or casing 404.5 Fittings in concealed locations. Fittings installed in concealed locations shall be limited to the following types 1 Threaded elbows, tees and couplings 2 Brazed fittings 3 Welded fittings 4 Fittings listed to ANSI LC-1/CSA 6 26 or ANSI LC-4 404.6 Underground penetrations prohibited. Gas piping shall not penetrate building foundation walls at any point below grade Gas piping shall enter and exit a building at a point above grade and the annular space between the pipe and the wall shall be sealed 404.7 Protection against physical damage. Where piping will be concealed within light -frame construction assemblies, the piping shall be protected against penetration by fasteners in accordance with Sections 404 7 1 through 404 7 3 Exception: Black steel piping and galvanized steel piping shall not be required to be protected 404.7.1 Piping through holes or notches. Where piping is installed through holes or notches in framing members and the piping is located less than IYz inches (38 mm) from the framing member face to which wall, ceiling or 2018 INTERNATIONAL FUEL GAS CODE® 71 I I1 I CoLFIEILOo2.017 ICC ALL RIGHTS RESERVED A—LDd by H®Ih¢ Van Dme(Rvdme pooch od om),(Dty of FRmdNmod)O[do,N=b,,*1008170S601 JM 15. ZMO oc 51 AM (PET) Mt,b,mt to ( Lie Ag,, ^®'^Rt, ICC No fwN¢[TAodomoo.m AtO, goodomo- by any Ot Party o, Axmboem a Romsd Mglo—ody oTyncg and Nyodwg L,oIRbAd ANY VNAVTHO RIVER REICLA VCTION OR DISIRIBITTO N IS A VIOLATION OF THE FEDERAL COPYRIGHT ACT AND THE LICENSE AGREEMENT. AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER GAS PIPING INSTALLATIONS floor membranes will be attached, the pipe shall be pro- tected by shield plates that cover the width of the pipe and the framing member and that extend not less than 4 inches (102 mm) to each side of the framing member Where the framing member that the piping passes through is a bottom plate, bottom track, top plate or top track, the shield plates shall cover the framing member and extend not less than 4 inches (102 mm) above the bottom framing member and not less than 4 inches (102 mm) below the top framing member 404.7.2 Piping installed in other locations. Where the piping is located within a framing member and is less than 1'/ inches (38 mm) from the framing member face to which wall, ceiling or floor membranes will be attached, the piping shall be protected by shield plates that cover the width and length of the piping Where the piping is located outside of a framing member and is located less than 1'/ inches (38 mm) from the nearest edge of the face of the framing member to which the membrane will be attached, the piping shall be protected by shield plates that cover the width and length of the piping 404.7.3 Shield plates. Shield plates shall be of steel mate- rial having a thickness of not less than 0 0575 inch (1 463 mm) (No 16 gage) 404.8 Piping in solid floors. Piping in solid floors shall be laid in channels in the floor and covered in a manner that will allow access to the piping with a minimum amount of dam- age to the building Where such piping is subject to exposure to excessive moisture or corrosive substances, the piping shall be protected in an approved manner As an alternative to installation in channels, the piping shall be installed in a con- duit of Schedule 40 steel, wrought iron, PVC or ABS pipe in accordance with Section 404 8 1 or 404 8 2 404.8.1 Conduit with one end terminating outdoors. The conduit shall extend into an occupiable portion of the building and, at the point where the conduit term mates in the building, the space between the conduit and the gas piping shall be sealed to prevent the possible entrance of any gas leakage The conduit shall extend not less than 2 inches (51 mm) beyond the point where the pipe emerges from the floor If the end sealing is capable of withstand- ing the full pressure of the gas pipe, the conduit shall be designed for the same pressure as the pipe Such conduit shall extend not less than 4 inches (102 mm) outside the building shall be vented above grade to the outdoors and shall be installed so as to prevent the entrance of water and insects 404.8.2 Conduit with both ends terminating indoors. Where the conduit originates and tennmates within the same building, the conduit shall originate and term mate in an accessible portion of the building and shall not be sealed The conduit shall extend not less than 2 inches (51 mm) beyond the point where the pipe emerges from the floor 404.9 Above -ground outdoor piping. Piping installed out- doors shall be elevated not less than 3'/ inches (89 mm) above ground and where installed across roof surfaces, shall be elevated not less than 3'/ inches (89 mm) above the roof surface Piping installed above ground, outdoors, and installed across the surface of roofs shall be securely sup- ported and located where it will be protected from physical damage Where passing through an outside wall, the piping shall be protected against corrosion by coating or wrapping with an inert material Where piping is encased in a protective pipe sleeve, the annular space between the piping and the sleeve shall be sealed 404.10 Isolation. Metallic piping and metallic tubing that conveys fuel gas from an LP -gas storage container shall be provided with an approved dielectric fitting to electrically isolate the underground portion of the pipe or tube from the above -ground portion that enters a building Such dielectric fitting shall be installed above ground, outdoors 404.11 Protection against corrosion. Steel pipe or tubing exposed to corrosive action, such as soil conditions or mois- ture, shall be protected in accordance Sections 404 11 1 through 404 11 5 404.11.1 Galvanizing. Zinc coating shall not be deemed adequate protection for underground gas piping 404.11.2 Protection methods. Underground piping shall comply with one or more of the following 1 The piping shall be made of corrosion -resistant material that is suitable for the environment in which it will be installed 2 Pipe shall have a factory -applied, electrically -insu- lating coating Fittings and joints between sections of coated pipe shall be coated in accordance with the coating manufacturer's instructions 3 The piping shall have a cathodic protection system installed and the system shall be monitored and maintained in accordance with an approved pro- gram 404.11.3 Dissimilar metals. Where dissimilar metals are joined underground, an insulating coupling or fitting shall be used 404.11.4 Protection of risers. Steel risers connected to plastic piping shall be cathodically protected by means of a welded anode, except where such risers are anodeless risers 404.11.5 Prohibited use. Uncoated threaded or socket - welded joints shall not be used in piping in contact with soil or where internal or external crevice corrosion is known to occur 404.12 Minimum burial depth. Underground piping sys- tems shall be installed a mimmum depth of 12 inches (305 mm) below grade, except as provided for in Section 404 12 1 404.12.1 Individual outdoor appliances. Individual Imes to outdoor lights, grills and other appliances shall be installed not less than 8 inches (203 mm) below finished grade, provided that such installation is approved and is installed in locations not susceptible to physical damage 404.13 Trenches. The trench shall be graded so that the pipe has a firm, substantially continuous bearing on the bottom of the trench 404.14 Piping underground beneath buildings. Piping installed underground beneath bwldmgs is prohibited except 4m 72 2018 INTERNATIONAL FUEL GAS CODE® 11 1 CopyngbtOo2.017 ICC ALL RIGHTS RESERVED A—LDd by H®Ih¢ Van DmA(Rvdme Oo,dA od om),(Dty of FRmdNmod)O[do,N=b,,*1008170S601 JM 15. ZMO oc 51 AM (GET) mt to S I ( TITTRR 1, Ag,'^Rt, ICC No otths TAodomoo. m AtOy odomo- by any Ot Party o[ AAmboemd,Oo[vsd Mgle —ooly o,and Nyodwg GMIRISAd ANY VNAVTHO OLDER REPROD VCIION OR D ISIRIEVTION IS VIOLATION OP THE FEDERAL COPYRIGHT 11 AND THE LICENSE A G RE EM ENT. AND REJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER GAS PIPING INSTALLATIONS where the piping is encased in a conduit of wrought iron, plastic pipe, steel pipe, a piping or encasement system listed for installation beneath buildings, or other approved conduit material designed to withstand the superimposed loads The conduit shall be protected from corrosion in accordance with Section 404 11 and shall be installed in accordance with Sec- tion 404 14 1 or 404 14 2 404.14.1 Conduit with one end terminating outdoors. The conduit shall extend into an occupiable portion of the building and, at the point where the conduit term mates in the building, the space between the conduit and the gas piping shall be sealed to prevent the possible entrance of any gas leakage The conduit shall extend not less than 2 inches (51 mm) beyond the point where the pipe emerges from the floor Where the end sealing is capable of with- standing the full pressure of the gas pipe, the conduit shall be designed for the same pressure as the pipe Such con- duit shall extend not less than 4 inches (102 mm) outside of the building, shall be vented above grade to the out- doors and shall be installed so as to prevent the entrance of water and insects 404.14.2 Conduit with both ends terminating indoors. Where the conduit originates and termmates within the same building, the conduit shall originate and term mate in an accessible portion of the building and shall not be sealed The conduit shall extend not less than 2 inches (51 mm) beyond the point where the pipe emerges from the floor 404.15 Outlet closures Gas outlets that do not connect to appliances shall be capped gas tight Exception: Listed and labeled flush -mounted -type quick - disconnect devices and listed and labeled gas convenience outlets shall be installed in accordance with the manufac- turer's instructions 404.16 Location of outlets. The unthreaded portion of piping outlets shall extend not less than 1 inch (25 mm) through fin- ished ceilings and walls and where extending through floors or outdoor patios and slabs, shall be not less than 2 inches (51 mm) above them The outlet fitting or piping shall be securely supported Outlets shall not be placed behind doors Outlets shall be located in the room or space where the appliance is installed Exception: Listed and labeled flush -mounted -type quick - disconnect devices and listed and labeled gas convenience outlets shall be installed in accordance with the manufac- turer's instructions 404.17 Plastic pipe. The installation of plastic pipe shall comply with Sections 404 17 1 through 404 17 3 404.17.1 Limitations Plastic pipe shall be installed out- doors underground only Plastic pipe shall not be used within or under any building or slab or be operated at pres- sures greater than 100 psig (689 kPa) for natural gas or 30 psig (207 kPa) for LP -gas Exceptions: 1 Plastic pipe shall be permitted to term mate above ground outside of buildings where installed in premanufactured anodeless risers or service head adapter risers that are installed in accordance with the manufacturer's instructions 2 Plastic pipe shall be permitted to termmate with a wall head adapter within buildings where the plastic pipe is inserted in a piping material for fuel gas use in buildings 3 Plastic pipe shall be permitted under outdoor patio, walkway and driveway slabs provided that the burial depth complies with Section 404 12 404.17.2 Connections. Connections made outdoors and underground between metallic and plastic piping shall be made only with transition fittings conforming to ASTM D2513 Category I or ASTM F1973 404.17.3 Tracer. A yellow insulated copper tracer wire or other approved conductor, or a product specifically designed for that purpose, shall be installed adjacent to underground nonmetallic piping Access shall be provided to the tracer wire or the tracer wire shall terminate above ground at each end of the nonmetallic piping The tracer wire size shall be not less than 18 AWG and the insulation type shall be suitable for direct burial 404.18 Pipe cleaning. The use of a flammable or combusti- ble gas to clean or remove debris from a piping system shall be prohibited 404.19 Prohibited devices A device shall not be placed inside the piping or fittings that will reduce the cross -sec- tional area or otherwise obstruct the free flow of gas Exceptions: 1 Approved gas filters 2 An approved fitting or device where the gas piping system has been sized to accommodate the pressure drop of the fitting or device 404.20 Testing of piping Before any system of piping is put in service or concealed, it shall be tested to ensure that it is gas tight Testing, inspection and purging of piping systems shall comply with Section 406 SECTION 405 (IFGS) PIPING BENDS AND CHANGES IN DIRECTION 405.1 General. Changes in direction of pipe shall be permit- ted to be made by the use of fittings, factory bends or field bends 405.2 Metallic pipe. Metallic pipe bends shall comply with the following 1 Bends shall be made only with bending tools and pro- cedures intended for that purpose 2 Bends shall be smooth and free from buckling, cracks or other evidence of mechanical damage 3 The longitudinal weld of the pipe shall be near the neu- tral axis of the bend 4 Pipe shall not be bent through an are of more than 90 degrees (1 6 rad) 5 The inside radius of a bend shall be not less than six tunes the outside diameter of the pipe 2018 INTERNATIONAL FUEL GAS CODE® 73 I I 1 I CALFIEIL @ 2017 ICC ALL RIGHTS RESERVED A—LDd by H®Ih¢ Van Dme(Rv dme pooch od om),(Dty of FRmdNmod)O[do, Nomb6xlo08170S601JM 15. ZMO oc 51 AM (PET) t to ( Lie Affiee^® Rt, ICC No fwN¢[TAodomoo.m AtO,Pepeodomo- by any Ot Party o, Axmboemdm6o d Mglo—ody mpyncg and Nyodwg LARISAd ANY VNAVTHO RIVER REICLA VCTION OR DISIRIBITTO N IS A VIOLATION OF THE FEDERAL COPYRIGHT ACT AND THE LICENSE AGREEMENT. AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER GAS PIPING INSTALLATIONS 405.3 Plastic pipe. Plastic pipe bends shall comply with the following 1 The pipe shall not be damaged and the internal diame- ter of the pipe shall not be effectively reduced 2 Joints shall not be located in pipe bends 3 The radius of the inner curve of such bends shall be not less than 25 times the inside diameter of the pipe 4 Where the piping manufacturer specifies the use of spe- cial bending tools or procedures, such tools or proce- dures shall be used 405.4 Elbows. Factory -made welding elbows or transverse segments cut therefrom shall have an are length measured along the crotch of not less than 1 inch (25 mm) in pipe sizes 2 inches (51 mm) and larger SECTION 406 (IFGS) INSPECTION, TESTING AND PURGING 406.1 General. Prior to acceptance and initial operation, all piping installations shall be visually inspected and pressure tested to determme that the materials, design, fabrication and installation practices comply with the requirements of this code 406.1.1 Inspections. Inspection shall consist of visual examination during or after manufacture, fabrication, assembly or pressure tests 406.1.2 Repairs and additions. In the event repairs or additions are made after the pressure test, the affected pip- ing shall be tested Minor repairs and additions are not required to be pres- sure tested provided that the work is inspected and connec- tions are tested with a noncorrosive leak -detecting fluid or other approved leak -detecting methods 406.1.3 New branches. Where new branches are installed to new appliances, only the newly installed branches shall be required to be pressure tested Connections between the new piping and the existing piping shall be tested with a noncorrosive leak -detecting fluid or other approved leak - detecting methods 406.1.4 Section testing. A piping system shall be permit- ted to be tested as a complete unit or in sections A valve in a line shall not be used as a bulkhead between gas in one section of the piping system and test medium in an adjacent section, except where a double block and bleed valve system is installed A valve shall not be subjected to the test pressure unless it can be determmed that the valve, including the valve -closing mechanism, is designed to safely withstand the test pressure 406.1.5 Regulators and valve assemblies. Regulator and valve assemblies fabricated independently of the piping system in wluch they are to be installed shall be permitted to be tested with inert gas or air at the time of fabrication 406.1.6 Pipe clearing. Prior to testing, the interior of the pipe shall be cleared of all foreign material 406.2 Test medium. The test medium shall be air, nitrogen, carbon dioxide or an inert gas Oxygen shall not be used as a test medium 406.3 Test preparation. Pipe joints, including welds, shall be left exposed for examination during the test Exception: Covered or concealed pipe endjomts that have been previously tested in accordance with this code 406.3.1 Expansion joints. Expansion joints shall be pro- vided with temporary restraints, if required, for the addi- tional thrust load under test 406.3.2 Appliance and equipment isolation. Appliances and equipment that are not to be included in the test shall be either disconnected from the piping or isolated by blanks, blind flanges or caps Flanged joints at which blinds are inserted to blank off other equipment during the test shall not be required to be tested 406.3.3 Appliance and equipment disconnection. Where the piping system is connected to appliances or equipment designed for operating pressures of less than the test pres- sure, such appliances or equipment shall be isolated from the piping system by disconnecting them and capping the outlet(s) 406.3.4 Valve isolation. Where the piping system is con- nected to appliances or equipment designed for operating pressures equal to or greater than the test pressure, such appliances or equipment shall be isolated from the piping system by closing the individual appliance or equipment shutoff valve(s) 406.3.5 Testing precautions. Testing of piping systems shall be performed in a manner that protects the safety of employees and the public during the test 406.4 Test pressure measurement. Test pressure shall be measured with a manometer or with a pressure -measuring device designed and calibrated to read, record or indicate a pressure loss caused by leakage during the pressure test period The source of pressure shall be isolated before the pressure tests are made Mechanical gauges used to measure test pressures shall have a range such that the highest end of the scale is not greater than five times the test pressure 406.4.1 Test pressure. The test pressure to be used shall be not less than 1 Yz tunes the proposed maximum working pressure, but not less than 3 psig (20 kPa gauge), irrespec- tive of design pressure Where the test pressure exceeds 125 psig (862 kPa gauge), the test pressure shall not exceed a value that produces a hoop stress in the piping greater than 50 percent of the specified minimum yield strength of the pipe 406.4.2 Test duration. Test duration shall be not less than '/ hour for each 500 cubic feet (14 m') of pipe volume or fraction thereof When testing a system having a volume less than 10 cubic feet (0 28 m') or a system in a single- family dwelling, the test duration shall be not less than 10 minutes The duration of the test shall not be required to exceed 24 hours 74 2018 INTERNATIONAL FUEL GAS CODE® I CopyngbtOo2.017 ICC ALL RIGHTS RESERVED A—LDd by H®Ih¢ Van DmA(Rvdme Oo,dA od om),(Dty of FRmdNmod)O[do,N=b6xlo08170S601JM 15. ZMO oc 51 AM (GET) Mt,mmt to I I ( 1 TTRR 1, sAg,e^ '^Rt, ICC No otths TAodomoo. m AtOy goodomo- by any Ot Party o[ AAmboemd,Oo[vsd Mgle —ooly oTymg and Nyodwg TMIRISAd ANY VNAVTHO OLDER PRO RED VCIION OR D ISIRIEVTION IS VIOLATION OP THE FEDERAL COPYRIGHT 11 AND THE LICENSE A G RE EM ENT. AND REJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER GAS PIPING INSTALLATIONS 406.5 Detection of leaks and defects. The piping system shall withstand the test pressure specified without showing any evidence of leakage or other defects Any reduction of test pressures as indicated by pressure gauges shall be deemed to indicate the presence of a leak unless such reduction can be readily attributed to some other cause 406.5.1 Detection methods. The leakage shall be located by means of an approved gas detector, a noncorrosive leak detection fluid or other approved leak detection methods 406.5.2 Corrections. Where leakage or other defects are located, the affected portion of the piping system shall be repaired or replaced and retested 406.6 Piping system and equipment leakage check. Leak- age checking of systems and equipment shall be in accor- dance with Sections 406 6 1 through 406 6 4 406.6.1 Test gases. Leak checks using fuel gas shall be pennitted in piping systems that have been pressure tested in accordance with Section 406 406.6.2 Before turning gas on. During the process of turning gas on into a system of new gas piping, the entire system shall be inspected to detennme that there are no open fittings or ends and that all valves at unused outlets are closed and plugged or capped 406.6.3 Leak check. Immediately after the gas is turned on into a new system or into a system that has been ini- tially restored after an interruption of service, the piping system shall be checked for leakage Where leakage is indicated, the gas supply shall be shut off until the neces- sary repairs have been made 406.6.4 Placing appliances and equipment in operation. Appiances and equipment shall not be placed in operation until after the piping system has been checked for leakage in accordance with Section 406 6 3, the piping system has been purged in accordance with Section 406 7 and the connections to the appliances have been checked for leak- age 406.7 Purging. The purging of piping shall be in accordance with Sections 406 7 1 through 406 7 3 406.7.1 Piping systems required to be purged outdoors. The purging of piping systems shall be in accordance with the provisions of Sections 406 7 1 1 through 406 7 1 4 where the piping system meets either of the following 1 The design operating gas pressure is greater than 2 psig (13 79 kPa) 2 The piping being purged contains one or more sec- tions of pipe or tubing meeting the size and length criteria of Table 406 7 1 1 406.7.1.1 Removal from service. Where existing gas piping is opened, the section that is opened shall be iso- lated from the gas supply and the line pressure vented in accordance with Section 406 7 1 3 Where gas piping meeting the criteria of Table 406 7 1 1 is removed from service, the residual fuel gas in the piping shall be dis- placed with an inert gas TABLE 406.7.1.1 SIZE AND LENGTH OF PIPING NOMINAL PIPE SIZE (inches)- LENGTH OF PIPING (feet) >21/L<3 >50 >3<4 >30 >4<6 >15 >6<8 >10 > 8 Any length For SI 1 inch = 25 4 mm, 1 foot= 304 8 min a CSST EHD size of 62 is equivalent to nominal 2-inch pipe or tubing size 406.7.1.2 Placing in operation. Where gas piping con - taming air and meeting the criteria of Table 406 7 1 1 is placed in operation, the air in the piping shall first be displaced with an inert gas The inert gas shall then be displaced with fuel gas in accordance with Section 40671 3 406.7.1.3 Outdoor discharge of purged gases. The open end of a piping system being pressure vented or purged shall discharge directly to an outdoor location Purging operations shall comply with all of the follow- ing requirements 1 The point of discharge shall be controlled with a shutoff valve 2 The point of discharge shall be located not less than 10 feet (3048 mm) from sources of ignition, not less than 10 feet (3048 mm) from building openings and not less than 25 feet (7620 mm) from mechanical air intake openings 3 During discharge, the open point of discharge shall be continuously attended and monitored with a combustible gas indicator that complies with Section 406 7 1 4 4 Purging operations introducing fuel gas shall be stopped when 90 percent fuel gas by volume is detected within the pipe 5 Persons not involved in the purging operations shall be evacuated from all areas within 10 feet (3048 mm) of the point of discharge 406.7.1.4 Combustible gas indicator. Combustible gas indicators shall be listed and shall be calibrated in accordance with the manufacturer's instructions Com- bustible gas indicators shall numerically display a vol- ume scale from zero percent to 100 percent in 1-percent or smaller increments 406.7.2 Piping systems allowed to be purged indoors or outdoors. The purging of piping systems shall be in accor- dance with the provisions of Section 406 7 2 1 where the piping system meets both of the following 1 The design operating gas pressure is 2 psig (13 79 kPa) or less 2018 INTERNATIONAL FUEL GAS CODE® 75 I 1 1 1 Co LFIEIL @ 2017 ICC ALL RIGHTS RESERVED AwLDd by H®Ih¢ Van Dme(Rv dme pooch od om),(Qty of FRmdNmod) O[do, Nomb,,*1008170S601 JM 15, m0 0651 AM (PET) t to ( Lie Affiee^®Rt, ICC No fwN¢[TAodomoo.mAtO,Pepeodomo,o by any Ot Party o, Axmboemd,Oo[vsd Mglo¢ odympyncg and Nyodwg LIRbAd ANY UNEARTHED RIVER REICLA VCTION OR DISIRIBITTO N IS A VIOLATION OF THE FEDERAL COPYRIGHT ACT AND THE LICENSE AGREEMENT. AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER GAS PIPING INSTALLATIONS 2 The piping being purged is constructed entirely from pipe or tubing not meeting the size and length crite- ria of Table 406 7 1 1 406.7.2.1 Purging procedure. The piping system shall be purged in accordance with one or more of the fol- lowing 1 The piping shall be purged with fuel gas and shall discharge to the outdoors 2 The piping shall be purged with fuel gas and shall discharge to the indoors or outdoors through an appliance burner not located in a combustion chamber Such burner shall be provided with a continuous source of ignition 3 The piping shall be purged with fuel gas and shall discharge to the indoors or outdoors through a burner that has a continuous source of ignition and that is designed for such purpose 4 The piping shall be purged with fuel gas that is discharged to the indoors or outdoors, and the point of discharge shall be monitored with a listed combustible gas detector in accordance with Section 406 7 2 2 Purging shall be stopped when fuel gas is detected 5 The piping shall be purged by the gas supplier in accordance with written procedures 406.7.2.2 Combustible gas detector. Combustible gas detectors shall be listed and shall be calibrated or tested in accordance with the manufacturer's instructions Combustible gas detectors shall be capable of mdicat- mg the presence of fuel gas 406.7.3 Purging appliances and equipment. After the piping system has been placed in operation, appliances and equipment shall be purged before being placed into operation SECTION 407 (IFGC) PIPING SUPPORT 407.1 General. Piping shall be provided with support in accordance with Section 407 2 407.2 Design and installation. Piping shall be supported with metal pipe hooks, metal pipe straps, metal bands, metal brackets, metal hangers or building structural components, suitable for the size of piping, of adequate strength and qual- ity, and located at intervals so as to prevent or damp out excessive vibration Piping shall be anchored to prevent undue strains on connected appliances and shall not be sup- ported by other piping Pipe hangers and supports shall con- form to the requirements of MSS SP-58 and shall be spaced in accordance with Section 415 Supports, hangers and anchors shall be installed so as not to interfere with the free expansion and contraction of the piping between anchors The components of the supporting equipment shall be designed and installed so that they will not be disengaged by movement of the supported piping SECTION 408 (IFGC) DRIPS AND SLOPED PIPING 408.1 Slopes. Piping for other than dry gas conditions shall be sloped not less than '/q inch in 15 feet (6 3 mm in 4572 mm) to prevent traps 408.2 Drips. Where wet gas exists, a drip shall be provided at any point in the line of pipe where condensate could collect A drip shall be provided at the outlet of the meter and shall be installed so as to constitute a trap wherein an accumulation of condensate will shut off the flow of gas before the condensate will run back into the meter 408.3 Location of drips. Drips shall be provided with ready access to permit cleaning or emptying A drip shall not be located where the condensate is subject to freezing 408.4 Sediment trap. Where a sediment trap is not incorpo- rated as part of the appliance, a sediment trap shall be installed downstream of the appliance shutoff valve as close to the inlet of the appliance as practical The sediment trap shall be either a tee fitting having a capped nipple of any length installed vertically in the bottommost opening of the tee as illustrated in Figure 408 4 or other device approved as an effective sediment trap Illuminating appliances, ranges, clothes dryers, decorative vented appliances for installation in vented fireplaces, gas fireplaces and outdoor grills need not be so equipped T - Q1IDDI V If ooA -H As SUPPLY TEE NIPPLE OEANY LENGTH CAP FIGURE 408.4 METHOD OF INSTALLING A TEE FITTING SEDIMENT TRAP 76 2018 INTERNATIONAL FUEL GAS CODE® I CopyrightOo2.017 ICC ALL RIGHTS RESERVED A—LDd by H®Ih¢ Van DmA(Rvdme Oo,dA od om),(Dty of FRmdNmod)OG,,N=b,,*1008170S601 JM 15. ZMO 0651 AM (GOP LA,mmt to S I ( 1 TITTRR LEA Ag,e^ 'Ath ICC No otths ,Vodomoo. m AtOy epeodomo- by any Hod Party o[ AAmboemd,Ho [vsd Mgle —ooly o,and Nyodwg Lo GGISAd ANY VNAVPHO OLDER REPROD VCPION OR D ISPRIEIMN IS VIOLATION OP THE FED REAL COPYRIGHT 11 AND THE LICENSE A G RE EM ENT. AND SVEJECP TO CIVIL AND CRIMINAL PENALTIES THEREUNDER GAS PIPING INSTALLATIONS SECTION 409 (IFGC) SHUTOFF VALVES 409.1 General. Piping systems shall be provided with shutoff valves in accordance with this section 409.1.1 Valve approval. Shutoff valves shall be of an approved type, shall be constructed of materials compati- ble with the piping, and shall comply with the standard that is applicable for the pressure and application, in accordance with Table 409 1 1 409.1.2 Prohibited locations. Shutoff valves shall be pro- hibited in concealed locations and furnace plenums 409.1.3 Access to shutoff valves. Shutoff valves shall be located in places so as to provide access for operation and shall be installed so as to be protected from damage 409.2 Meter valve. Every meter shall be equipped with a shutoff valve located on the supply side of the meter 409.3 Shutoff valves for multiple -house line systems. Where a single meter is used to supply gas to more than one building or tenant, a separate shutoff valve shall be provided for each building or tenant 409.3.1 Multiple tenant buildings. In multiple tenant buildings, where a common piping system is installed to supply other than one- and two-family dwellings, shutoff valves shall be provided for each tenant Each tenant shall have access to the shutoff valve serving that tenant's space 409.3.2 Individual buildings. In a common system serv- ing more than one building, shutoff valves shall be installed outdoors at each building 409.3.3 Identification of shutoff valves. Each house line shutoff valve shall be plainly marked with an identifica- tion tag attached by the installer so that the piping systems supplied by such valves are readily identified 409.4 MP regulator valves. A listed shutoff valve shall be installed immediately ahead of each MP regulator 409.5 Appliance shutoff valve. Each appliance shall be pro- vided with a shutoff valve in accordance with Section 409 5 1, 409 5 2 or 409 5 3 409.5.1 Located within same room. The shutoff valve shall be located in the same room as the appliance The shutoff valve shall be within 6 feet (1829 mm) of the appliance, and shall be installed upstream of the union, connector or quick disconnect device it serves Such shut- off valves shall be provided with access Shutoff valves serving movable appliances, such as cooking appliances and clothes dryers, shall be considered to be provided with I access where installed behind such appliances Appliance shutoff valves located in the firebox of a fireplace shall be installed in accordance with the appliance manufacturer's instructions 409.5.2 Vented decorative appliances and room heat- ers. Shutoff valves for vented decorative appliances, room heaters and decorative appliances for installation in vented fireplaces shall be permitted to be installed in an area remote from the appliances where such valves are pro- vided with ready access Such valves shall be permanently identified and shall not serve another appliance The pip- ing from the shutoff valve to within 6 feet (1829 mm) of the appliance shall be designed, sized and installed in accordance with Sections 401 through 408 409.5.3 Located at manifold. Where the appliance shut- off valve is installed at a manifold, such shutoff valve shall be located within 50 feet (15 240 mm) of the appliance served and shall be readily accessible and permanently identified The piping from the manifold to within 6 feet (1829 mm) of the appliance shall be designed, sized and installed in accordance with Sections 401 through 408 409.6 Shutoff valve for laboratories. Where provided with two or more fuel gas outlets, including table-, bench- and hood -mounted outlets, each laboratory space in educational, research, commercial and industrial occupancies shall be pro- vided with a single dedicated shutoff valve through which all such gas outlets shall be supplied The dedicated shutoff valve shall be readily accessible, located within the labora- tory space served, located adjacent to the egress door from the space and shall be identified by approved signage stating "Gas Shutoff " 409.7 Shutoff valves in tubing systems. Shutoff valves installed in tubing systems shall be rigidly and securely sup- I ported independently of the tubing SECTION 410 (IFGC) FLOW CONTROLS 410.1 Pressure regulators. A line pressure regulator shall be installed where the appliance is designed to operate at a lower pressure than the supply pressure Line gas pressure regulators shall be listed as complying with ANSI Z21 80/ CSA 6 22 Access shall be provided to pressure regulators Pressure regulators shall be protected from physical damage Regulators installed on the exterior of the building shall be approved for outdoor installation TABLE 409.1.1 MANUAL GAS VALVE STANDARDS VALVE STANDARDS APPLIANCE SHUTOFF VALVE APPLICATION UP TO'I2 psig PRESSURE OTHER VALVE APPLICATIONS UP TO IS psig PRESSURE UP TO 2 psig PRESSURE UP TO 5 psig PRESSURE UP TO 125 psig PRESSURE ANSI Z21 15/CGA 9 1 X ASME B 16 44 X X Xa X° ASME B 16 33 X X X X X For SI 1 pound per square inch gauge = 6 895 kPa a If labeled 2G b If labeled 5G 2018 INTERNAT10NAL FUEL GAS CODE® 77 I I 1 I (Arynght @ 2017 ICC ALL RIGHTS RESERVED A—LDd by H®Ih¢Van Dme(Rv dme pooch od om),(Dty of FRmdNmod)O[do, Namb,,xl 008170S601 JM 15, amo 0651 AM (PET) t to ( Lie Affiee^® Rt, ICC No fwN¢[TAodamoo.m AtO,Pepeodamo- by any Ot Party o, Axmboem aOod Mglo—ody mpyncg and Nyodwg L-ARISed ANY UNEARTHED RIVER REICLA VCTION OR DISIRIBITTO N IS A VIOLATION OF THE FEDERAL COPYRIGHT ACT AND THE LICENSE AGREEMENT. AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER GAS PIPING INSTALLATIONS 410.2 MP regulators. MP pressure regulators shall comply with the following 1 The MP regulator shall be approved and shall be suit- able for the inlet and outlet gas pressures for the appli- cation 2 The MP regulator shall maintain a reduced outlet pres- sure under lock -up (no -flow) conditions 3 The capacity of the MP regulator, detennmed by pub- lished ratings of its manufacturer, shall be adequate to supply the appliances served 4 The MP pressure regulator shall be provided with access Where located indoors, the regulator shall be vented to the outdoors or shall be equipped with a leak - limiting device, in either case complying with Section 4103 5 A tee fitting with one opening capped or plugged shall be installed between the MP regulator and its upstream shutoff valve Such tee fitting shall be positioned to allow connection of a pressure -measuring instrument and to serve as a sediment trap 6 A tee fitting with one opening capped or plugged shall be installed not less than 10 pipe diameters downstream of the MP regulator outlet Such tee fitting shall be positioned to allow connection of a pressure -measuring instrument The tee fitting is not required where the MP regulator serves an appliance that has a pressure test port on the gas control inlet side and the appliance is located in the same room as the MP regulator 7 Where connected to rigid piping, a union shall be installed within 1 foot (304 mm) of either side of the MP regulator 410.3 Venting of regulators. Pressure regulators that require a vent shall be vented directly to the outdoors The vent shall be designed to prevent the entry of insects, water and foreign objects Exception: A vent to the outdoors is not required for regu- lators equipped with and labeled for utilization with an approved vent -limiting device installed in accordance with the manufacturer's instructions 410.3.1 Vent piping. Vent piping for relief vents and breather vents shall be constructed of materials allowed for gas piping in accordance with Section 403 Vent piping shall be not smaller than the vent connection on the pres- sure -regulating device Vent piping serving relief vents and combination relief and breather vents shall be run independently to the outdoors and shall serve only a single device vent Vent piping serving only breather vents is permitted to be connected in a manifold arrangement where sized in accordance with an approved design that minimizes backpressure in the event of diaphragm rupture Regulator vent piping shall not exceed the length specified in the regulator manufacturer's instructions 410.4 Excess flow valves. Where automatic excess ,flow valves are installed, they shall be listed in accordance with ANSI Z21 93/CSA 630 and shall be sized and installed in accordance with the manufacturer's instructions 410.5 Flashback arrestor check valve. Where fuel gas is used with oxygen in any hot work operation, a listed protective device that serves as a combination flashback arrestor and backflow check valve shall be installed at an approved location on both the fuel gas and oxygen supply lines Where the pres- sure of the piped fuel gas supply is insufficient to ensure such safe operation, approved equipment shall be installed between the gas meter and the appliance that increases pressure to the level required for such safe operation SECTION 411 (IFGC) APPLIANCE AND MANUFACTURED HOME CONNECTIONS 411.1 Connecting appliances. Except as required by Section 411 1 1, appliances shall be connected to the piping system by one of the following 1 Rigid metallic pipe and fittings 2 Corrugated stainless steel tubing (CSST) where installed in accordance with the manufacturer's mstruc- tions 3 Semirigid metallic tubing and metallic fittings Lengths shall not exceed 6 feet (1829 mm) and shall be located entirely in the same room as the appliance Semirigid metallic tubing shall not enter a motor -operated appli- ance through an unprotected knockout opening 4 Listed and labeled appliance connectors in compliance with ANSI Z21 24/CGA 610 and installed in accor- dance with the manufacturer's instructions and located entirely in the same room as the appliance 5 Listed and labeled quick -disconnect devices used in conjunction with listed and labeled appliance connec- tors 6 Listed and labeled convenience outlets used in conjunc- tion with listed and labeled appliance connectors 7 Listed and labeled outdoor appliance connectors in compliance with ANSI Z21 75/CSA 6 27 and installed in accordance with the manufacturer's instructions 8 Listed outdoor gas hose connectors in compliance with ANSI Z21 54 used to connect portable outdoor appli- ances The gas hose connection shall be made only in the outdoor area where the appliance is used, and shall be to the gas piping supply at an appliance shutoff valve, a listed quick -disconnect device or listed gas convenience outlet 9 Gas hose connectors for use in laboratories and educa- tional facilities in accordance with Section 411 4 411.1.1 Commercial cooking appliances. Commercial cooking appliances installed on casters and appliances that are moved for cleaning and sanitation purposes shall be connected to the piping system with an appliance connec- tor listed as complying with ANSI Z21 69/CSA 6 16 The commercial cooking appliance connector installation shall be configured in accordance with the manufacturer's instructions Movement of appliances with casters shall be limited by a restraining device installed in accordance with the connector and appliance manufacturer's instructions 78 2018 INTERNATIONAL FUEL GAS CODE® I CopyngbtOo2.017 ICC ALL RIGHTS RESERVED A—LDd by H®Ih¢ Van DmA(Rvdme Oo,dA od om),(Dty of FRmdNmod)O[do,N=b,,*1008170S601 JM 15. ZMO oc 51 AM (GET) mt to S I ( 1 TITTRR 1, Ag,'^Rt, ICC No otths TAodomoo. m AtOy odomo- by any Ot Party o[ AAmboemd,Oo[vsd Mgle —ooly o,and Nyodwg GMIRISAd ANY VNAVTHO RIVER REPROD VCIION OR D ISIRIEVTION IS VIOLATION OP THE FED REAL COPYRIGHT 11 AND THE LICENSE A G RE EM ENT. AND REJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER GAS PIPING INSTALLATIONS 411.1.2 Protection against damage. Connectors and tub- ing shall be installed so as to be protected against physical damage 411.1.3 Connector installation. Appliance fuel connectors shall be installed in accordance with the manufacturer's instructions and Sections 411 13 1 through 411 1 3 4 411.1.3.1 Maximum length. Connectors shall have an overall length not to exceed 6 feet (1829 mm) Mea- surement shall be made along the centerline of the con- nector Only one connector shall be used for each appliance Exception: Rigid metallic piping used to connect an appliance to the piping system shall be permitted to have a total length greater than 6 feet (1829 mm), provided that the connecting pipe is sized as part of the piping system in accordance with Section 402 and the location of the appliance shutoff valve com- plies with Section 409 5 411.1.3.2 Minimum size. Connectors shall have the capacity for the total demand of the connected appli- ance 411.1.3.3 Prohibited locations and penetrations. Connectors shall not be concealed within, or extended through, walls, floors, partitions, ceilings or appliance housings Exceptions: 1 Connectors constructed of materials allowed for piping systems in accordance with Section 403 shall be permitted to pass through walls, floors, partitions and ceilings where installed in accordance with Section 409 5 2 or 409 5 3 2 Rigid steel pipe connectors shall be permitted to extend through openings in appliance hous- ings 3 Fireplace inserts that are factory equipped with grommets, sleeves or other means of pro- tection in accordance with the listing of the appliance 4 Semirigid tubing and listed connectors shall be permitted to extend through an opening in an appliance housing, cabinet or casing where the tubing or connector is protected against damage 411.1.3.4 Shutoff valve. A shutoff valve not less than the nominal size of the connector shall be installed ahead of the connector in accordance with Section 4095 411.1.4 Movable appliances. Where appliances are equipped with casters or are otherwise subject to periodic movement or relocation for purposes such as routine cleaning and maintenance, such appliances shall be con- nected to the supply system piping by means of an appli- ance connector listed as complying with ANSI Z21 69/ CSA 6 16 or by means of Item 1 of Section 411 1 Such flexible connectors shall be installed and protected against physical damage in accordance with the manufacturer's instructions 411.1.5 (IFGS) Connection of gas engine -powered air conditioners. Internal combustion engines shall not be rigidly connected to the gas supply piping 411.1.6 Unions. A umon fitting shall be provided for appliances connected by rigid metallic pipe Such umons shall be accessible and located within 6 feet (1829 mm) of the appliance 411.2 Manufactured home connections. Manufactured homes shall be connected to the distribution piping system by one of the following materials 1 Metallic pipe in accordance with Section 403 4 2 Metallic tubing in accordance with Section 403 5 3 Listed and labeled connectors in compliance with ANSI Z21 75/CSA 6 27 and installed in accordance with the manufacturer's instructions 411.3 Suspended low -intensity infrared tube heaters. Sus- pended low -intensity infrared tube heaters shall be connected to the building piping system with a connector listed for the application complying with ANSI Z21 24/CGA 610 The connector shall be installed as specified by the tube heater manufacturer's instructions 411.4 Injection Bunsen -type burners. Injection Bunsen - type burners used in laboratories and educational facilities shall be connected to the gas supply system by either a listed or unlisted hose SECTION 412 (IFGC) LIQUEFIED PETROLEUM GAS MOTOR VEHICLE FUEL -DISPENSING FACILITIES [F] 412.1 General. Motor fael-dispensmg facilities for LP - gas fuel shall be in accordance with this section and the Inter- national Fire Code The operation of LP -gas motor fael-dis- pensmg facilities shall be regulated by the International Fire Code [F] 412.2 Storage and dispensing. Storage vessels and equipment used for the storage or dispensing of LP -gas shall be approved or listed in accordance with Sections 412 3 and 4124 [F] 412.3 Approved equipment. Containers, pressure -relief devices, including pressure -relief valves, and pressure regula- tors and piping used for LP -gas shall be approved [F] 412.4 Listed equipment. Hoses, hose connections, vehi- cle fuel connections, dispensers, LP -gas pumps and electrical equipment used for LP -gas shall be listed [F] 412.5 Attendants. Motor vehicle fueling operations shall be conducted by qualified attendants or in accordance with Section 412 9 by persons trained in the proper handling of LP -gas [F] 412.6 Location. The point of transfer for LP -gas dispens- ing operations shall be separated from buildings and other exposures in accordance with the following 1 Not less than 25 feet (7620 mm) from buildings where the exterior wall is not part of a fire -resistance -rated assembly having a rating of 1 hour or greater 2018 INTERNATIONAL FUEL GAS CODE® 79 I I 1 I CITFIght @ 2017 ICC ALL RIGHTS RESERVED AwLDd by H®Ih¢ Van Dme(Rv dme pooch od om),(Dty of FRmdNmod)O[do, Nomb6xlo08170S601JM 15. ZMO oc 51 AM (PET) t to ( Lie Affiee^® Rt, ICC No fwN¢[TAodomoo.m AtO,Pepe odomo,o by any Ot Party o, Axmboemdm6o d Mglo¢ ody mpyncg and Nyodwg LARISAd ANY VNAVTHO RIVER REICLA VCTION OR DISIRIBITTO N IS A VIOLATION OF THE FEDERAL COPYRIGHT ACT AND THE LICENSE AGREEMENT. AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER GAS PIPING INSTALLATIONS 2 Not less than 25 feet (7620 mm) from combustible overhangs on buildings, measured from a vertical line dropped from the face of the overhang at a point nearest the point of transfer 3 Not less than 25 feet (7620 mm) from the lot line of property that can be built upon 4 Not less than 25 feet (7620 mm) from the centerlme of the nearest mainline railroad track 5 Not less than 10 feet (3048 mm) from public streets, highways, thoroughfares, sidewalks and driveways 6 Not less than 10 feet (3048 mm) from buildings where the exterior wall is part of a fire -resistance -rated assem- bly having a rating of 1 hour or greater Exception: The point of transfer for LP -gas dis- pensing operations need not be separated from cano- pies that are constructed in accordance with the International Building Code and that provide weather protection for the dispensing equipment Liquefied petroleum gas containers shall be located in accordance with the International Fire Code Liquefied petroleum gas storage and dispensing equipment shall be located outdoors and in accordance with the International Fire Code [F] 412.7 Additional requirements for LP -gas dispensers and equipment. LP -gas dispensers and related equipment shall comply with the following provisions 1 Pumps shall be fixed in place and shall be designed to allow control of the flow and to prevent leakage and accidental discharge 2 Dispensing devices installed within 10 feet (3048 mm) of where vehicle traffic occurs shall be protected against physical damage by mounting on a concrete island 6 inches (152 mm) or more in height, or shall be protected in accordance with Section 312 of the Inter- national Fire Code 3 Dispensing devices shall be securely fastened to their mounting surface in accordance with the dispenser manufacturer's instructions [F] 412.8 Installation of dispensing devices and equip- ment. The installation and operation of LP -gas dispensing systems shall be in accordance with this section and the Inter- national Fire Code Liquefied petroleum gas dispensers and dispensing stations shall be installed in accordance with man- ufacturers' specifications and their listing [F] 412.8.1 Product control valves. The dispenser system piping shall be protected from uncontrolled discharge in accordance with the following 1 Where mounted on a concrete base, a means shall be provided and installed within Yz inch (12 7 mm) of the top of the concrete base that will prevent flow from the supply piping in the event that the dis- penser is displaced from its mounting 2 A manual shutoff valve and an excess flow -control check valve shall be located in the liquid line between the pump and the dispenser mlet where the dispensing device is installed at a remote location and is not part of a complete storage and dispensing unit mounted on a common base An excess flow -control check valve or an emer- gency shutoff valve shall be installed in or on the dispenser at the point where the dispenser hose is connected to the liquid piping 4 A listed automatic -closing -type hose nozzle valve with or without a latch -open device shall be pro- vided on island -type dispensers [F] 412.8.2 Hoses. Hoses and piping for the dispensing of LP -gas shall be provided with hydrostatic relief valves The hose length shall not exceed 18 feet (5486 mm) An approved method shall be provided to protect the hose against mechanical damage [F] 412.8.3 Vehicle impact protection. Where installed within 10 feet (3048 mm) of vehicle traffic, LP -gas stor- age containers, pumps and dispensers shall be protected in accordance with Section 2307 5, Item 2 of the Intema- tional Fire Code [F] 412.8.4 Breakaway protection. Dispenser hoses shall be equipped with a listed emergency breakaway device designed to retain liquid on both sides of the breakaway point Where hoses are attached to hose -retrieving mecha- nisms, the emergency breakaway device shall be located such that the breakaway device activates to protect the dis- penser from displacement [F] 412.9 Public fueling of motor vehicles. Self-service LP - gas dispensing systems, including key, code and card lock dispensing systems, shall be limited to the filling of perma- nently mounted containers providing fuel to the LP -gas -pow- ered vehicle The requirements for self-service LP -gas dispensing sys- tems shall be in accordance with the following 1 The arrangement and operation of the transfer of prod- uct into a velucle shall be in accordance with this sec- tion and Chapter 61 of the International Fire Code 2 The system shall be provided with an emergency shut- off switch located within 100 feet (30 480 mm) of, but not less than 20 feet (6096 mm) from, dispensers 3 The owner of the LP -gas motor fuel -dispensing facility or the owner's designee shall provide for the safe oper- ation of the system and the training of users 4 The dispenser and hose -end valve shall release not more than 4 cubic centimeters of liquid to the atmo- sphere upon breaking of the connection with the fill valve on the velucle 5 Fire extinguishers shall be provided in accordance with Section 2305 5 of the International Fire Code 6 Warning signs shall be provided in accordance with Section 2305 6 of the International Fire Code 7 The area around the dispenser shall be maintained in accordance with Section 2305 7 of the International Fire Code 80 2018 INTERNATIONAL FUEL GAS CODE® 11 1 CopyngbtOo2.017 ICC ALL RIGHTS RESERVED A—LDd by H®Ih¢ Van DmA(Rvdme Oo,dA od om),(Dty of FRmdNmod)O[do,N=b,,*1008170S601 JM 15. ZMO oc 51 AM (GET) mt to I I ( TTRR 1, sAg,e^ '^Rt, ICC No otths TAodomoo. m AtOy odomo- by any Ot Party o[ AAmboemd,Oo[vsd Mgle —ooly o,and Nyodwg GMIRISAd ANY VNAVTHO OLDER REPROD VCIION OR D ISIRIEVTION IS VIOLATION OP THE FEDERAL COPYRIGHT 11 AND THE LICENSE A G RE EM ENT. AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER GAS PIPING INSTALLATIONS SECTION 413 (IFGC) COMPRESSED NATURAL GAS MOTOR VEHICLE FUEL -DISPENSING FACILITIES [F] 413.1 General. Motor fuel -dispensing facilities for CNG fuel shall be in accordance with this section and the Interna- honal Fire Code The operation of CNG motor fael-dispens- mg facilities shall be regulated by the International Fire Code [F] 413.2 General. Storage vessels and equipment used for the storage, compression or dispensing of CNG shall be approved or listed in accordance with Sections 413 2 1 through 413 2 3 [F] 413.2.1 Approved equipment Containers, compres- sors, pressure -relief devices, including pressure -relief valves, and pressure regulators and piping used for CNG shall be approved [F] 413.2.2 Listed equipment Hoses, hose connections, dispensers, gas detection systems and electrical equipment used for CNG shall be listed Vehicle fueling connections shall be listed and labeled [F] 413.2.3 General. Residential fueling appliances shall be in accordance with Section 413 4 [F] 413.3 Location of dispensing operations and equip- ment. Compression, storage and dispensing equipment shall be located outdoors, above ground Exceptions: 1 Compression, storage or dispensing equipment is not prolubited in buildings where such buildings are of noncombustible construction as set forth in the International Building Code and are unenclosed for not less than three-quarters of their perimeter 2 Compression, storage and dispensing equipment is allowed to be located indoors or in vaults in accor- dance with the International Fire Code [F] 413.3.1 Location on property. In addition to the fuel - dispensing requirements of the International Fire Code, compression, storage and dispensing equipment not located in vaults complying with the International Fire Code and other than residential fueling appliances shall not be installed 1 Beneath power lines 2 Less than 10 feet (3048 mm) from the nearest build - mg or property that could be built on, public street, sidewalk or source of ignition Exception: Dispensing equipment need not be separated from canopies that provide weather protection for the dispensing equipment and are constructed in accordance with the International Building Code 3 Less than 25 feet (7620 mm) from the nearest rail of any railroad track 4 Less than 50 feet (15 240 mm) from the nearest rail of any railroad main track or any railroad or transit line where power for tram propulsion is provided by an outside electrical source, such as thud rail or overhead catenary 5 Less than 50 feet (15 240 mm) from the vertical plane below the nearest overhead wire of a trolley bus line [F] 413.4 Residential fueling appliance installation. Resi- dential fueling appliances shall be installed in accordance with Sections 413 4 1 through 413 4 3 [F] 413.4.1 Listing and installation. Residential fueling appliances shall be listed in accordance with ANSI NGV 5 1 Residential fueling appliances shall be installed in accordance with the appliance manufacturer's installation instructions [F] 413.4.2 Gas connection. Residential fueling appli- ances shall not be rigidly connected to the gas supply pip- ing [F] 413.4.3 Indoor installation. A residential fueling appliance installed indoors or used for indoor fueling shall comply with all of the following 1 The capacity shall not exceed 5 cubic feet per min- ute (0 14 m'/min) of natural gas 2 Fuel gas from the pressure relief and blowdown sys- tems shall be vented to the outdoors 3 A methane gas detector shall be installed in the room or space containing the appliance or where fueling occurs and shall be located not lower than 6 inches (152 mm) from the highest point in the room or space The detector shall be set to activate at one - fifth of the lower limit of flammability of natural gas and shall be interlocked with the residential fuel appliance to stop or prevent its operation upon acti- vation The detector shall have an audible or visible alarm 4 The capacity of a residential fueling appliance installed outdoors for outdoor fueling shall not exceed 10 feet cubic per minute (0 28 m'/min) of natural gas Residential fueling appliances located outdoors shall be installed on a firm, noncombusti- ble base [F] 413.5 Private fueling of motor vehicles. Self-service CNG-dispensmg systems, including key, code and card lock dispensing systems, shall be limited to the filling of perma- nently mounted fuel containers on CNG-powered vehicles In addition to the requirements in the International Fire Code, the owner of a self-service CNG-dispensing facility shall ensure the safe operation of the system and the training of users [F] 413.6 Pressure regulators. Pressure regulators shall be designed, installed or protected so their operation will not be affected by the elements (freezing ram, sleet, snow, lee, mud or debris) This protection is allowed to be integral with the regulator [F] 413.7 Valves. Piping to equipment shall be provided with a remote manual shutoff valve Such valve shall be provided with ready access [F] 413.8 Emergency shutdown control. An emergency shutdown device shall be located within 75 feet (22 860 mm) of, but not less than 25 feet (7620 mm) from, dispensers and shall also be provided in the compressor area Upon activa- tion, the emergency shutdown system shall automatically shut off the power supply to the compressor and close valves between the main gas supply and the compressor and between the storage containers and dispensers [F] 413.9 Discharge of CNG from motor vehicle fuel stor- age containers. The discharge of CNG from motor vehicle 2018 INTERNATIONAL FUEL GAS CODE® 81 I 1 1 I CITFIght @ 2017 ICC ALL RIGHTS RESERVED AwLDd by H®Ih¢ Van Dme(Rv dme pooch od om),(Qty of FRmdNmod)O[do, Nomb6xlo08170S601JM 15. ZMO oc 51 AM (PET) t to ( Lie Affiee^® Rt, ICC No fwN¢[TAodomoo.m AtO,Pepe odomo,o by any Ot Party o, Axmboemdm6o d Mglo¢ ody mpyncg and Nyodwg LARISAd ANY VNAVTHO RIVER REICLA VCTION OR DISIRIBITTO N IS A VIOLATION OF THE FEDERAL COPYRIGHT ACT AND THE LICENSE AGREEMENT. AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER GAS PIPING INSTALLATIONS fuel cylinders for the purposes of maintenance, cylinder certi- fication, calibration of dispensers or other activities shall be in accordance with this section The discharge of CNG from motor vehicle fuel cylinders shall be accomplished through a closed transfer system or an approved method of atmospheric venting in accordance with Section 413 9 1 or 413 9 2 [F] 413.9.1 Closed transfer system. A documented pro- cedure that explains the logical sequence for discharging the cylinder shall be provided to the code official for review and approval The procedure shall include what actions the operator will take in the event of a low-pres- sure or high-pressure natural gas release during the dis- charging activity A drawing illustrating the arrangement of piping, regulators and equipment settings shall be pro- vided to the code official for review and approval The drawing shall illustrate the piping and regulator arrange- ment and shall be shown in spatial relation to the location of the compressor, storage vessels and emergency shut- down devices [F] 413.9.2 Atmospheric venting. Atmospheric venting of motor vehicle fuel cylinders shall be in accordance with Sections 413 9 2 1 through 413 9 2 6 [F] 413.9.2.1 Plans and specifications. A drawing illustrating the location of the vessel support, piping, the method of grounding and bonding, and other requirements specified herein shall be provided to the code official for review and approval [F] 413.9.2.2 Cylinder stability. A method of rigidly supporting the vessel during the venting of CNG shall be provided The selected method shall provide not less than two points of support and shall prevent horizontal and lateral movement of the vessel The system shall be designed to prevent movement of the vessel based on the highest gas -release velocity through valve orifices at the vessel's rated pressure and volume The structure or appurtenance shall be constructed of noncombustible materials [F] 413.9.2.3 Separation. The structure or appurtenance used for stabilizing the cylinder shall be separated from the site equipment, features and exposures and shall be located in accordance with Table 413 9 2 3 IF] TABLE 413.9.2.3 SEPARATION DISTANCE FOR ATMOSPHERIC VENTING OF CNG EQUIPMENT OR FEATURE MINIMUM SEPARATION (feet) Buildings 25 Building openings 25 Lot Imes 15 Public ways 15 Velucles 25 CNG compressor and storage vessels 25 CNG dispensers 25 For SI 1 foot— 304 8 min [F] 413.9.2.4 Grounding and bonding. The structure or appurtenance used for supporting the cylinder shall be grounded in accordance with NFPA 70 The cylinder valve shall be bonded prior to the commencement of venting operations [F] 413.9.2.5 Vent tube. A vent tube that will divert the gas flow to the atmosphere shall be installed on the cylinder prior to the commencement of the venting and purging operation The vent tube shall be constructed of pipe or tubing materials approved for use with CNG in accordance with the International Fire Code The vent tube shall be capable of dispersing the gas not less than 10 feet (3048 mm) above grade level The vent tube shall not be provided with a ram cap or other feature that would limit or obstruct the gas flow At the connection fitting of the vent tube and the CNG cylinder, a listed bidirectional detonation flame arrester shall be provided [F] 413.9.2.6 Signage. Approved NO SMOKING signs shall be posted within 10 feet (3048 mm) of the cylin- der support structure or appurtenance Approved CYL- INDER SHALL BE BONDED signs shall be posted on the cylinder support structure or appurtenance SECTION 414 (IFGC) SUPPLEMENTAL AND STANDBY GAS SUPPLY 414.1 Use of air or oxygen under pressure. Where air or oxygen under pressure is used in connection with the gas sup- ply, effective means such as a backpressure regulator and relief valve shall be provided to prevent air or oxygen from passing back into the gas piping Where oxygen is used, installation shall be in accordance with NFPA 51 414.2 Interconnections for standby fuels. Where supple- mentary gas for standby use is connected downstream from a meter or a service regulator where a meter is not provided, a device to prevent backflow shall be installed A three-way valve installed to admit the standby supply and at the same time shut off the regular supply shall be permitted to be used for this purpose SECTION 415 (IFGS) PIPING SUPPORT INTERVALS 415.1 Interval of support. Piping shall be supported at inter- vals not exceeding the spacing specified in Table 415 1 Spacing of supports for CSST shall be in accordance with the CSST manufacturer's instructions TABLE 415.1 SUPPORT OF PIPING STEEL PIPE, NOMINAL SIZE SPACING OF NOMINAL SIZE OF TUBING SPACING OF OF PIPE SUPPORTS (fee[) (SMOOTH -WALL) SUPPORTS (fee[) (inches) (inch O.D.) I/2 6 I/2 4 '/ or 1 8 '/g or 6 11/4 or larger 7/g or 1 (horizontal) 10 (horizontal) 8 11/4 or larger Every floor 1 or larger Every floor (vertical) level (vertical) level For SI 1 inch= 25 4 mm, 1 foot =304 8 min 82 2018 INTERNATIONAL FUEL GAS CODE® I 1PETER Copyright OO?.o,7 ICC ALL RIGHTS RESERVED A—LDd by H®Ih¢ Van DmA(Rv dme Oo,dA od om),(Qty of FRmdNmod) O[do, Nomb,,*1008170S601 JM 15, m0 oc 5n AM(PET)puAry mt to 1 S I ( 1, Ag,e^ '^Rt, ICC No otths TAodomo,, m AtOy odomo- by any Ot Party o[ AAmboem a Row.d Mglo —o,IA o,and Nyodwg GMIRIS d ANY VNAVTHO OLDER REPROD VCTMo OR D ISIRIEUTION IS VIOLATION OP THE FEDERAL COPYRIGHT 11 AND THE LICENSE A G RE EM ENT. AND REJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER GAS PIPING INSTALLATIONS SECTION 416 (IFGS) OVERPRESSURE PROTECTION DEVICES 416.1 Where required. Where the serving gas supplier delivers gas at a pressure greater than 2 psi for piping systems serving appliances designed to operate at a gas pressure of 14 inches w c or less, overpressure protection devices shall be installed Piping systems serving equipment designed to oper- ate at inlet pressures greater than 14 inches w c shall be equipped with overpressure protection devices as required by the appliance manufacturer's installation instructions 416.2 Pressure limitation requirements. The requirements for pressure limitation shall be in accordance with Sections 416 2 1 through 416 2 5 416.2.1 Pressure under 14 inches w.c. Where piping sys- tems serving appliances designed to operate with a gas supply pressure of 14 inches w c or less are required to be equipped with overpressure protection by Section 416 1, each overpressure protection device shall be adjusted to limit the gas pressure to each connected appliance to 2 psi or less upon a failure of the line pressure regulator 416.2.2 Pressure over 14 inches w.c. Where piping sys- tems serving appliances designed to operate with a gas supply pressure greater than 14 inches w c are required to be equipped with overpressure protection by Section 416 1, each overpressure protection device shall be adjusted to limit the gas pressure to each connected appli- ance as required by the appliance manufacturer's installa- tion instructions 416.2.3 Device capability. Each overpressure protection device installed to meet the requirements of this section shall be capable of limiting the pressure to its connected appliance(s) as required by this Section 416 2 1, inde- pendently of any other pressure control equipment in the piping system 416.2.4 Failure detection. Each gas piping system for which an overpressure protection device is required by Section 416 shall be designed and installed so that a fail- ure of the primary pressure control device(s) is detectable 416.2.5 Relief valve. Where a pressure relief valve is used to meet the requirements of Section 416, it shall have a flow capacity such that the pressure in the protected sys- tem is maintained at or below the limits specified in Sec- tion 416 2 1 under all of the following conditions 1 The line pressure regulator for which the relief valve is providing overpressure protection has failed wide open 2 The gas pressure at the inlet of the line pressure reg- ulator for which the relief valve is providing over- pressure protection is not less than the regulator's normal operating inlet pressure 416.3 Overpressure protection devices. Overpressure pro- tection devices shall be one of the following 1 Pressure relief valve 2 Monitoring regulator 3 Series regulator installed upstream from the line regula- tor and set to continuously limit the pressure on the inlet of the line regulator to the maximum values speci- fied by Section 416 2 1 Automatic shutoff device installed in series with the line pressure regulator and set to shut off when the pressure on the downstream piping system reaches the maximum values specified by Section 416 2 1 This device shall be designed so that it will remain closed until manually reset The devices specified in this section shall be installed either as an integral part of the service or line pressure regula- tor or as separate units Where separate overpressure protec- tion devices are installed, they shall comply with Sections I 416 3 1 through 416 3 6 416.3.1 Construction and installation. Overpressure pro- tection devices shall be constructed of materials so that the operation of the devices will not be unpaired by corrosion of external parts by the atmosphere or of internal parts by the gas Overpressure protection devices shall be designed and installed so that they can be operated to determine whether the valve is free The devices shall be designed and installed so that they can be tested to determine the pressure at which they will operate and examined for leak- age when in the closed position 416.3.2 External control piping. External control piping shall be designed and installed so that damage to the con- trol piping of one device will not render both the regulator and the overpressure protection device inoperative 416.3.3 Setting. Each overpressure protection device shall be set so that the gas pressure supplied to the connected appliances does not exceed the limits specified in Sections 416 2 1 and 416 2 2 416.3.4 Unauthorized operation. Where unauthorized operation of any shutoff valve could render an overpres- sure protection device inoperative, one of the following shall be accomplished The valve shall be locked in the open position Authorized personnel shall be instructed in the importance of leaving the shutoff valve open and of being present while the shutoff valve is closed so that it can be locked in the open position before leaving the premises Duplicate relief valves shall be installed, each hav- ing adequate capacity to protect the system, and the isolating valves and three-way valves shall be arranged so that only one relief valve can be ren- dered inoperative at a time 416.3.5 Vents. The discharge stacks, vents and outlet parts of all overpressure protection devices shall be located so that gas is safely discharged to the outdoors Discharge stacks and vents shall be designed to prevent the entry of water, insects and other foreign material that could cause blockage The discharge stack or vent line shall be not less than the same size as the outlet of the pressure -relieving device 2018 INTERNATIONAL FUEL GAS CODE® 83 I I 1 I CALFIEIL @ 2017 ICC ALL RIGHTS RESERVED A—LDd by H®Ih¢ Van Dme(Rv dme pooch od om),(Dty of FRmdNmod)O[do, Nomb6xlo08170S601JM 15. ZMO oc 51 AM (PET) t to ( Lie Affiee^® Rt, ICC No fwN¢[TAodomoo.m AtO,Pepeodomo- by any Ot Party o, Axmboemdm6o d Mglo—ody mpyncg and Nyodwg LARISAd ANY VNAVTHO RIVER REICLA VCTION OR DISIRIBITTO N IS A VIOLATION OF THE FEDERAL COPYRIGHT ACT AND THE LICENSE AGREEMENT. AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER GAS PIPING INSTALLATIONS 416.3.6 Size of fittings, pipe and openings. The fittings, pipe and openings located between the system to be pro- tected and the pressure -relieving device shall be sized to prevent hammering of the valve and to prevent impairment of relief capacity 84 2018 INTERNATIONAL FUEL GAS CODE® firill ' CopyngbtOo2.017 ICC ALL RIGHTS RESERVED A—LDd by H®Ih¢ Van Dme(Rvdme pooch od om),(Dty of FRmdNmod)O[do,N=b,,*1008170S601 JM 15. ZMO oc 51 AM (GET) Mt,mmt to S I ( ITHR 1, xAg,e^ '^Rt, ICC Nootths TAodomoo.m AtOygoodomo-by any Ot Party o[Axmboemd,Oo[vsd Mgle—odympyncg and Nyodwg GMIRISed ANY VNAVTHO OLDER REPROD ,,MN OR D ISIRIEVTION IS VIOLATION OP THE FEDERAL COPYRIGHT 11 AND THE LICENSE AGRE EM ENT. AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER CHAPTER 5 CHIMNEYS AND VENTS User note: About this chapter., The majority of gas -fired appliances have their combustion products vented to the outdoors Venting is by means of chimneys, vents, integral vents, direct -vents and power exhausters Chapter 5 includes design, sizing and installation requirements for chim- neys and vents and requirements for matching the appliance type to the appropriate venting system Venting system termination location requirements are also addressed SECTION 501 (IFGC) GENERAL 501.1 Scope. This chapter shall govern the installation, main- tenance, repair and approval of factory-buult chimneys, chim- ney liners, vents and connectors and the utilization of masonry chimneys serving gas -fired appliances The require- ments for the installation, maintenance, repair and approval of factory-buult chimneys, chimney liners, vents and connec- tors serving appliances burning fuels other than fuel gas shall be regulated by the International Mechanical Code The con- struction, repair, maintenance and approval of masonry chim- neys shall be regulated by the International Building Code 501.2 General. Every appliance shall discharge the products of combustion to the outdoors, except for appliances exempted by Section 501 8 501.3 Masonry chimneys. Masonry chimneys shall be con- structed in accordance with Section 503 5 3 and the Interna- honal Builckng Code 501.4 Minimum size of chimney or vent. Chimneys and vents shall be sized in accordance with Sections 503 and 504 501.5 Abandoned inlet openings. Abandoned inlet openings in chimneys and vents shall be closed by an approved method 501.6 Positive pressure. Where an appliance equipped with a mechanical forced draft system creates a positive pressure in the venting system, the venting system shall be designed for positive pressure applications 501.7 Connection to fireplace. Connection of appliances to chimney flues serving fireplaces shall be in accordance with Sections 501 7 1 through 501 7 3 501.7.1 Closure and access. A noncombustible seal shall be provided below the point of connection to prevent entry of room au into the flue Means shall be provided for access to the flue for inspection and cleaning 501.7.2 Connection to factory -built fireplace flue. An appliance shall not be connected to a flue serving a fac- tory -built fireplace unless the appliance is specifically listed for such installation The connection shall be made in accordance with the appliance manufacturer's installa- tion instructions 501.7.3 Connection to masonry fireplace flue. A con- nector shall extend from the appliance to the flue serving a masonry fireplace such that the flue gases are exhausted directly into the flue The connector shall be accessible or removable for inspection and cleaning of both the connec- tor and the flue Listed direct connection devices shall be installed in accordance with their listing 501.8 Appliances not required to be vented. The following appliances shall not be required to be vented 1 Ranges 2 Built-in domestic cooking units fisted and marked for optional venting 3 Hotplates and laundry stoves 4 Type 1 clothes dryers (Type 1 clothes dryers shall be exhausted in accordance with the requirements of Section 614) 5 A single booster -type automatic instantaneous water heater, where designed and used solely for the sanitiz- ing rinse requirements of a dishwaslung machine, pro- vided that the heater is installed in a commercial kitchen having a mechanical exhaust system Where installed in this manner, the draft hood, if required, shall be in place and unaltered and the draft hood out- let shall be not less than 36 inches (914 mm) verti- cally and 6 inches (152 mm) horizontally from any surface other than the heater 6 Refrigerators 7 Counter appliances 8 Room heaters listed for invented use 9 Direct -fired makeup air heaters 10 Other appliances listed for invented use and not pro- vided with flue collars 11 Specialized appliances of luntied input such as labo- ratory burners and gas lights Where the appliances listed in Items 5 through 11 are installed so that the aggregate input rating exceeds 20 British thermal units (Btu) per hour per cubic foot (207 watts per m') of volume of the room or space in which such appliances are installed, one or more shall be provided with venting systems or other approved means for conveying the vent gases to the outdoor atmosphere so that the aggregate input rating of the remaining invented appliances does not exceed 20 Btu per hour per cubic foot (207 watts per m') Where the room or space in which the appliance is installed is directly connected to another room or space by a doorway, archway or other 2018 INTERNAT10NAL FUEL GAS CODE" 85 I I 1 I CALFIEIL @ 2017 ICC ALL RIGHTS RESERVED A—LDd by H®Ih¢ Van Dme(Rv dme pooch od om),(Qty of FRmdNmod)O[do, Nomb6xlo08170S601JM 15, ZMO oc 51 AM (PET) t to ( Lie Affiee^® Rt, ICC No fwN¢[TAodomo,,m AtO,Pepeodomo- by any Ot Party o, Axmboemdm6o d Mglo—ody mpyncg and Nyodwg LARISAd ANY VNAVTHO RIVER REICLA VCTION OR DISIRIBITTO N IS A VIOLATION OF THE FEDERAL COPYRIGHT ACT AND THE LICENSE AGREEMENT. AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER CHIMNEYS AND VENTS opening of comparable size that cannot be closed, the volume of such adjacent room or space shall be permitted to be included in the calculations 501.9 Chimney entrance. Connectors shall connect to a masonry chimney flue at a point not less than 12 inches (305 mm) above the lowest portion of the interior of the chimney flue 501.10 Connections to exhauster. Appliance connections to a chimney or vent equipped with a power exhauster shall be made on the inlet side of the exhauster Joints on the positive pressure side of the exhauster shall be sealed to prevent flue - gas leakage as specified by the manufacturer's installation instructions for the exhauster 501.11 Masonry chimneys. Masonry chimneys utilized to vent appliances shall be located, constructed and sized as specified in the manufacturer's installation instructions for the appliances being vented and Section 503 501.12 Residential and low -heat appliances flue lining sys- tems. Flue lining systems for use with residential -type and low -heat appliances shall be limited to the following 1 Clay flue lining complying with the requirements of ASTM C315 or equivalent Clay flue lining shall be installed in accordance with the International Building Code 2 Listed chimney lining systems complying with UL 1777 3 Other approved materials that will resist, without cracking, softening or corrosion, flue gases and con- densate at temperatures up to 1,800°F (982°C) 501.13 Category I appliance flue lining systems. Flue lin- ing systems for use with Category I appliances shall be lnm- tted to the following 1 Flue lining systems complying with Section 501 12 2 Chimney lining systems listed and labeled for use with gas appliances with draft hoods and other Category I gas appliances listed and labeled for use with Type B vents 501.14 Category II, III and IV appliance venting systems. The design, sizing and installation of vents for Category II, III and IV appliances shall be in accordance with the appli- ance manufacturer's instructions 501.15 Existing chimneys and vents. Where an appliance is permanently disconnected from an existing chimney or vent, or where an appliance is connected to an existing chimney or vent during the process of a new installation, the chimney or vent shall comply with Sections 501 15 1 through 501 15 4 501.15.1 Size. The chimney or vent shall be resized as necessary to control flue gas condensation in the interior of the chimney or vent and to provide the appliance or appliances served with the required draft For Category I appliances, the resizing shall be in accordance with Sec- tion 502 501.15.2 Flue passageways. The flue gas passageway shall be free of obstructions and combustible deposits and shall be cleaned if previously used for venting a solid or liquid fael-burning appliance or fireplace The flue liner, clumney inner wall or vent inner wall shall be continuous and shall be free of cracks, gaps, perforations or other damage or deterioration that would allow the escape of combustion products, including gases, moisture and creo- sote 501.15.3 Cleanout. Masonry chimney flues shall be pro- vided with a cleanout opening having a minimum height of 6 inches (152 mm) The upper edge of the opening shall be located not less than 6 inches (152 mm) below the low- est chimney inlet opening The cleanout shall be provided with a tight -fitting noncombustible cover 501.15.4 Clearances. Chimneys and vents shall have air- space clearance to combustibles in accordance with the International Building Code and the chimney or vent man- ufacturer's installation instructions Exception: Masonry chimneys without the required airspace clearances shall be permitted to be used if lmed or relined with a chimney lining system listed for use in chimneys with reduced clearances in accordance with UL 1777 The clumney clearance shall be not less than permitted by the terms of the chimney liner listing and the manufacturer's instructions 501.15.4.1 Fireblocking. Noncombustible f reblocking shall be provided in accordance with the International Building Code SECTION 502 (IFGC) VENTS 502.1 General. Vents, except as provided in Section 503 7, shall be listed and labeled Type B and BW vents shall be tested in accordance with UL 441 Type L vents shall be tested in accordance with UL 641 Vents for Category II and III appliances shall be tested in accordance with UL 1738 Plastic vents for Category IV appliances shall not be required to be listed and labeled where such vents are as specified by the appliance manufacturer and are installed in accordance with the appliance manufacturer's instructions 502.2 Connectors required. Connectors shall be used to connect appliances to the vertical chimney or vent, except where the clumney or vent is attached directly to the appli- ance Vent connector size, material, construction and mstalla- tion shall be in accordance with Section 503 502.3 Vent application. The application of vents shall be in accordance with Table 503 4 502.4 Insulation shield. Where vents pass through insulated assemblies, an insulation shield constructed of steel having a minimum thickness of 0 0187 inch (0 4712 mm) (No 26 gage) shall be installed to provide clearance between the vent and the insulation material The clearance shall be not less than the clearance to combustibles specified by the vent man- ufacturer's installation instructions Where vents pass through attic space, the shield shall term mate not less than 2 inches (51 mm) above the insulation materials and shall be secured in place to prevent displacement Insulation shields provided as part of a listed vent system shall be installed in accordance with the manufacturer's instructions 86 2018 INTERNATIONAL FUEL GAS CODE" 1 I C1pyngbtOo2.017 ICC ALL RIGHTS RESERVED A—LDd by H®Ih¢ Van DmA(Rvdme Oo,dA od om),(Dty of FRmdNmod)O[do,N=b6xlo08170S601JM 15. ZMO oc 51 AM (GET) mt to S I (firiTER 1, sAg,e^ '^Rt, ICC No otths TAodomoo. m AtOy odomo- by any Ot Party o[ AAmboemd,Oo[vsd Mgle —ooly o,and Nyodwg GMIRISAd ANY VNAVTHO OLDER REPROD ,,MN OR D ISIRIEVTION IS VIOLATION OP THE FED REAL COPYRIGHT 11 AND THE LICENSE AGRE EM ENT. AND REJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER CHIMNEYS AND VENTS 502.5 Installation. Vent systems shall be sized, installed and terminated in accordance with the vent and appliance manu- facturer's installation instructions and Section 503 502.6 Support of vents. All portions of vents shall be ade- quately supported for the design and weight of the materials employed 502.7 Protection against physical damage. In concealed locations, where a vent is installed through holes or notches in studs, joists, rafters or similar members less than 1'/ inches (38 mm) from the nearest edge of the member, the vent shall be protected by shield plates Protective steel shield plates having a mimmum thickness of 0 0575 inch (1 463 mm) (No 16 gage) shall cover the area of the vent where the member is notched or bored and shall extend not less than 4 inches (102 mm) above sole plates, below top plates and to each side of a stud, joist or rafter 502.7.1 Door swing. Appliance and equipment vent termi- nals shall be located such that doors cannot swing within 12 inches (305 mm) horizontally of the vent terimal Door stops or closers shall not be installed to obtain this clearance SECTION 503 (IFGS) VENTING OF APPLIANCES 503.1 General. The venting of appliances shall be in accor- dance with Sections 503 2 through 503 16 503.2 Venting systems required. Except as permitted in Sections 501 8 and 503 2 1 through 503 2 4, all appliances shall be connected to venting systems 503.2.1 Ventilating hoods. The use of ventilating hoods and exhaust systems to vent appliances shall be limited to industrial appliances and appliances installed in commer- cial applications 503.2.2 Well -ventilated spaces. The flue gases from industrial -type appliances shall not be required to be vented to the outdoors where such gases are discharged into a large and well -ventilated industrial space 503.2.3 Direct -vent appliances. Listed direct -vent appli- ances shall be installed in accordance with the manufac- turer's instructions and Section 503 8, Item 3 503.2.4 Appliances with integral vents. Appliances incorporating integral venting means shall be installed in accordance with the manufacturer's instructions and Sec- tion 503 8, Items 1 and 2 503.2.5 Incinerators. Commercial -industrial -type incin- erators shall be vented in accordance with NFPA 82 503.3 Design and construction. Venting systems shall be designed and constructed so as to convey all flue and vent gases to the outdoors 503.3.1 Appliance draft requirements. A venting system shall satisfy the draft requirements of the appliance in accordance with the manufacturer's instructions 503.3.2 Design and construction. Appliances required to be vented shall be connected to a venting system designed and installed in accordance with the provisions of Sections 503 4 through 503 16 503.3.3 Mechanical draft systems. Mechanical draft sys- tems shall comply with the following 1 Mechanical draft systems shall be listed in accor- dance with UL 378 and shall be installed in accor- dance with the manufacturer's instructions for both the appliance and the mechanical draft system 2 Appliances requiring venting shall be permitted to be vented by means of mechanical draft systems of either forced or induced draft design 3 Forced draft systems and all portions of induced draft systems under positive pressure during opera- tion shall be designed and installed so as to prevent leakage of flue or vent gases into a building 4 Vent connectors serving appliances vented by natu- ral draft shall not be connected to any portion of mechanical draft systems operating under positive pressure 5 Where a mechanical draft system is employed, pro- visions shall be made to prevent the flow of gas to the main burners when the draft system is not per- forming so as to satisfy the operating requirements of the appliance for safe performance 6 The exit terminals of mechanical draft systems shall be not less than 7 feet (2134 mm) above finished ground level where located adjacent to public walk- ways and shall be located as specified in Section 503 8, Items 1 and 2 503.3.4 Ventilating hoods and exhaust systems. Where automatically operated appliances, other than commercial cooking appliances, are vented through a ventilating hood or exhaust system equipped with a damper or with a power means of exhaust, provisions shall be made to allow the flow of gas to the main burners only when the damper is open to a position to properly vent the appliance and when the power means of exhaust is in operation 503.3.5 Air ducts and furnace plenums. Venting sys- tems shall not extend into or pass through any fabricated air duct or furnace plenum. 503.3.6 Above -ceiling air -handling spaces. Where a venting system passes through an above -ceiling au -han- dling space or other nonducted portion of an air -handling system, the venting system shall conform to one of the fol- lowing requirements 1 The venting system shall be a listed special gas vent, other venting system serving a Category III or Cate- gory IV appliance; or other positive pressure vent, with joints sealed in accordance with the appliance or vent manufacturer's instructions 2 The venting system shall be installed such that fit- tings and joints between sections are not installed in the above -ceiling space 3 The venting system shall be installed in a conduit or enclosure with sealed joints separating the interior of the conduit or enclosure from the ceiling space 2018 INTERNAT10NAL FUEL GAS CODE" 87 I I 1 I CALFIEIL @ 2017 ICC ALL RIGHTS RESERVED A—LDd by H®Ih¢ Van Dme(Rv dme pooch od om),(Dty of FRmdNmod)O[do, Nomb6xlo08170S601JM 15. ZMO oc 51 AM (PET) t to ( Lie Affiee^® Rt, ICC No fwN¢[TAodomoo.m AtO,Pepeodomo- by any Ot Party o, Axmboemdm6o d Mglo—ody mpyncg and Nyodwg LARISAd ANY VNAVTHO RIVER REICLA VCTION OR DISIRIBITTO N IS A VIOLATION OF THE FEDERAL COPYRIGHT ACT AND THE LICENSE AGREEMENT. AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER CHIMNEYS AND VENTS 503.4 Type of venting system to be used. The type of vent- ing system to be used shall be to accordance with Table 5034 503.4.1 Plastic piping. Where plastic piping is used to vent an appliance, the appliance shall be listed for use with such venting materials and the appliance manufacturer's installation instructions shall identify the specific plastic piping material The plastic pipe venting materials shall be labeled to accordance with the product standards specified by the appliance manufacturer or shall be listed and labeled to accordance with UL 1738 503.4.1.1 Plastic vent joints. Plastic pipe and fittings used to vent appliances shall be installed in accordance with the appliance manufacturer's instructions Plastic pipe venting materials listed and labeled to accordance with UL 1738 shall be installed to accordance with the vent manufacturer's instructions Where a pruner is required, it shall be of a contrasting color 503.4.2 Special gas vent. Special gas vent shall be listed and labeled in accordance with UL 1738 and installed in accordance with the special gas vent manufacturer's instructions 503.5 Masonry, metal and factory -built chimneys. Masonry, metal and factory -built clumneys shall comply with Sections 503 5 1 through 503 5 11 503.5.1 Factory -built chimneys. Factory -built chimneys shall be listed to accordance with UL 103 and installed in accordance with the manufacturer's instructions Factory - built clumneys used to vent appliances that operate at a positive vent pressure shall be listed for such application 503.5.2 Metal chimneys. Metal chimneys shall be built and installed to accordance with NFPA 211 503.5.3 Masonry chimneys. Masonry chimneys shall be built and installed to accordance with NFPA 211 and shall be lined with an approved clay flue lining, a chimney lm- mg system listed and labeled to accordance with UL 1777 or other approved material that will resist corrosion, ero- sion, softening or cracking from vent gases at tempera- tures up to 1,800°F (982°C) Exception: Masonry chimney flues serving listed gas appliances with draft hoods, Category I appliances and other gas appliances listed for use with Type B vents shall be permitted to be lined with a chimney lining system specifically listed for use only with such appli- ances The liner shall be installed to accordance with the liner manufacturer's instructions A permanent identifying label shall be attached at the point where the connection is to be made to the liner The label shall read "This chimney liner is for appliances that bum gas only Do not connect to solid or liquid fuel -burning appliances or incinerators " For installation of gas vents in existing masonry chimneys, see Section 503 6 4 503.5.4 Chimney termination. Chimneys for residential - type or low -heat appliances shall extend not less than 3 feet (914 mm) above the highest point where they pass through a roof of a bwldmg and not less than 2 feet (610 mm) higher than any portion of a building within a hori- zontal distance of 10 feet (3048 mm) Clumneys for medium -heat appliances shall extend not less than 10 feet (3048 mm) higher than any portion of any building within 25 feet (7620 mm) Chimneys shall extend not less than 5 feet (1524 mm) above the highest connected appliance draft hood outlet or flue collar Decorative shrouds shall not be installed at the termination of factory -built chim- neys except where such shrouds are listed and labeled for use with the specific factory -butte chimney system and are installed to accordance with the manufacturer's instruc- tions TABLE 503.4 TYPE OF VENTING SYSTEM TO BE USED APPLIANCES TYPE OF VENTING SYSTEM Listed Category I appliances Listed appliances equipped with draft hood Appliances listed for use with Type B gas vent Type B gas vent (Section 503 6) Clumney (Section 503 5) Single -wall metal pipe (Section 503 7) Listed clumney lining system for gas venting (Section 503 5 3) Special gas vent listed for these appliances (Section 503 4 2) Listed vented wall furnaces Type B-W gas vent (Sections 503 6, 608) Category II, Category III and Category IV appliances As specified or fumtshed by manufacturers of listed appliances (Sections 503 4 1, 503 4 2) Incinerators In accordance with NFPA 82 Appliances that can be converted for use with solid fuel Clumney (Section 503 5) Unlisted combination gas and oil -burring appliances Clumney (Section 503 5) Listed combination gas and oil -burning appliances Type L vent (Section 503 6) or clumney (Section 503 5) Combination gas and solid fuel -burning appliances Clumney (Section 503 5) Appliances listed for use with chimneys only Clumney (Section 503 5) Unlisted appliances Clumney (Section 503 5) Decorative appliances to vented fireplaces Clumney Gas -fired toilets Single -wall metal pipe (Section 626) Duect-vent appliances See Section 503 2 3 Apphances with integral vent See Section 503 2 4 88 2018 INTERNATIONAL FUEL GAS CODE® rill 1 1 UER Copynght Oo 2.017 ICC ALL RIGHTS RESERVED A—LDd by H®Ih¢ Van DmA(Rv dme Oo,dA od om),(Qty of ERmdNmod)O[do, Nomb,,*1008170S601 JM 15. ZMO oc 51 AM (GET) Mt,mmt to S I ( 1, Ag,At, ICC Nootths TAodomoo.m AtOygoodomo-by any Ot Party o[AAmboemd,Oo[vsd Mglo —o,IA oTymg and Nyodwg GMIRISAd ANY VNAVTHO OLDER RBPROD VCIION OR D ISIRIBVTION IS VIOLATION OP THE FED REAL COPYRIGHT 11 AND THE LICENSE AGREE. ENT. AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER CHIMNEYS AND VENTS 503.5.5 Size of chimneys. The effective area of a chimney venting system serving listed appliances with draft hoods, Category I appliances and other appliances listed for use with Type B vents shall be determined in accordance with one of the following methods 1 The provisions of Section 504 2 For sizing an individual clumney venting system for a single appliance with a draft hood, the effective areas of the vent connector and chimney flue shall be not less than the area of the appliance flue collar or draft hood outlet, nor greater than seven tines the draft hood outlet area 3 For sizing a chimney venting system connected to two appliances with draft hoods, the effective area of the chimney flue shall be not less than the area of the larger draft hood outlet plus 50 percent of the area of the smaller draft hood outlet, nor greater than seven times the smallest draft hood outlet area 4 Chimney venting systems using mechanical draft shall be sized in accordance with approved engi- neering methods 5 Other approved engineering methods 503.5.6 Inspection of chimneys. Before replacing an existing appliance or connecting a vent connector to a clumney, the chimney passageway shall be examined to ascertain that it is clear and free of obstructions and it shall be cleaned if previously used for venting solid or liquid fuel -burning appliances or fireplaces 503.5.6.1 Chimney lining. Chimneys shall be lined in accordance with NFPA 211 Exception: Where an existing chimney complies with Sections 503 5 6 through 503 5 63 and its siz- ing is in accordance with Section 503 5 5, its contm- ued use shall be allowed where the appliance vented by such chimney is replaced by an appliance of sun- ilar type, input rating and efficiency 503.5.6.2 Cleanouts. Cleanouts shall be examined and where they do not remain tightly closed when not in use, they shall be repaired or replaced 503.5.6.3 Unsafe chimneys. Where inspection reveals that an existing clumney is not safe for the intended application, it shall be repaired, rebuilt, lined, relined or replaced with a vent or chimney to conform to NFPA 211 and it shall be suitable for the appliances to be vented 503.5.7 Chimneys serving appliances burning other fuels. Chimneys serving appliances burning other fuels shall comply with Sections 503 5 7 1 through 503 5 7 4 503.5.7.1 Solid fuel -burning appliances. An apph- ance shall not be connected to a chimney flue serving a separate appliance designed to bum solid fuel 503.5.7.2 Liquid fuel -burning appliances. Where one chimney flue serves gas appliances and liquid fuel- burmng appliances, the appliances shall be connected through separate openings or shall be connected through a single opening where joined by a suitable fit - ring located as close as practical to the clumney Where two or more openings are provided into one chimney flue, they shall be at different levels Where the appli- ances are automatically controlled, they shall be equipped with safety shutoff devices 503.5.7.3 Combination gas- and solid fuel -burning appliances. A combination gas- and solid fuel -burning appliance shall be permitted to be connected to a single chimney flue where equipped with a manual reset device to shut off gas to the main burner in the event of sustained backdraft or flue gas spillage The chimney flue shall be sized to properly vent the appliance 503.5.7.4 Combination gas- and oil fuel -burning appliances. Where a single chimney flue serves a listed combination gas- and oil fael-burning appliance, such flue shall be sized in accordance with appliance manu- facturer's instructions 503.5.8 Support of chimneys. All portions of chimneys shall be supported for the design and weight of the materi- als employed Factory -built chimneys shall be supported and spaced in accordance with the manufacturer's mstalla- tion instructions 503.5.9 Cleanouts. Where a chimney that formerly car- ried flue products from liquid or solid fuel -burning appli- ances is used with an appliance using fuel gas, an accessible cleanout shall be provided The cleanout shall have a tight -fitting cover and shall be installed so its upper edge is not less than 6 inches (152 mm) below the lower edge of the lowest chimney inlet opening 503.5.10 Space surrounding lining or vent. The remain- ing space surrounding a chimney liner, gas vent, special gas vent or plastic piping installed within a masonry chim- ney flue shall not be used to vent another appliance The insertion of another liner or vent within the clumney as provided in this code and the liner or vent manufacturer's instructions shall not be prohibited The remaining space surrounding a chimney liner, gas vent, special gas vent or plastic piping installed within a masonry, metal or factory -built chimney shall not be used to supply combustion air Such space shall not be prohib- ited from supplying combustion air to direct -vent appli- ances designed for installation in a solid fuel -burning fireplace and installed in accordance with the manufac- turer's instructions 503.5.11 Insulation shield. Where a factory -built chimney passes through insulated assemblies, an insulation slueld constructed of steel having a thickness of not less than 0 0187 inch (0 475 mm) shall be installed to provide clear- ance between the chimney and the insulation material The clearance shall be not less than the clearance to combusti- bles specified by the chimney manufacturer's installation instructions Where chimneys pass through attic space, the shield shall terminate not less than 2 inches (51 mm) above the installation materials and shall be secured in place to prevent displacement Insulation shields provided as part of a listed chimney system shall be installed in accordance with the manufacturer's installation instructions 2018 INTERNAT10NAL FUEL GAS CODE" 89 I 11 1 CoLFIEILOo2.017 ICC ALL RIGHTS RESERVED A—LDd by H®Ih¢ Van DmA(Rvdme Oo,dA od om),(Dty of FRmdNmod)O[do,N=b,,*1008170S601 JM 15. ZMO oc 51 AM(PET)puArvant to ( LEA Affiee^® Rt, ICC No fwN¢[TAodomoo.m AtO,«odomo- by any Ot Party o, AAmboemd,Oo[vsd Mglo—ody mpyncg and Nyodwg L,oIRb¢Ad ANY VNAVTHO RIVER REPLA VCTION OR DISIRIBITTO N IS A VIOLATION OF THE FEDERAL COPYRIGHT ACT AND THE LICENSE AGREEMENT. AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER CHIMNEYS AND VENTS 100817036 503.6 Gas vents. Gas vents shall comply with Sections 503.6.1 through 503.6.14 (see Section 202, General Defini- tions). 503.6.1 Materials. Type B and BW gas vents shall be listed in accordance with UL 441. Vents for listed combi- nation gas- and oil -burning appliances shall be listed in accordance with UL 641. 503.6.2 Installation, general. Gas vents shall be installed in accordance with the manufacturer's instructions. 503.6.3 Type B-W vent capacity. A Type B-W gas vent shall have a listed capacity not less than that of the listed vented wall furnace to which it is connected. 503.6.4 Gas vents installed within masonry chimneys. Gas vents installed within masonry chimneys shall be installed in accordance with the manufacturer's instmc- tions. Gas vents installed within masonry chimneys shall be identified with a permanent label installed at the point where the vent enters the chimney. The label shall contain the following language: "This gas vent is for appliances that burn gas. Do not connect to solid or liquid fuel -burn- ing appliances or incinerators." 503.6.5 Gas vent terminations. A gas vent shall termi- nate in accordance with one of the following: 1. Gas vents that are 12 inches (305 min) or less in size and located not less than 8 feet (2438 nun) from a vertical wall or similar obstruction shall terminate above the roof in accordance with Figure 503.6.5. 2. Gas vents that are over 12 inches (305 nun) in size or are located less than 8 feet (2438 min) from a ver- tical wall or similar obstruction shall terminate not less than 2 feet (610 nun) above the highest point where they pass through the roof and not less than 2 feet (610 nun) above any portion of a building within 10 feet (3048 nun) horizontally. 3. As provided for industrial appliances in Section 503.2.2. 4. As provided for direct -vent systems in Section 503.2.3. 5. As provided for appliances with integral vents in Section 503.2.4. 6. As provided for mechanical draft systems in Section 503.3.3. 7. As provided for ventilating hoods and exhaust sys- tems in Section 503.3.4. 503.6.5.1 Decorative shrouds. Decorative shrouds shall not be installed at the termination of gas vents except where such shrouds are listed for use with the specific gas venting system and are installed in accor- dance with manufacturer's instructions. 503.6.6 Minimum height. A Type B or L gas vent shall terminate not less than 5 feet (1524 nun) in vertical height above the highest connected appliance draft hood or flue collar. A Type B-W gas vent shall terminate not less than 12 feet (3658 nun) in vertical height above the bottom of the wall furnace. 503.6.7 Roof terminations. Gas vents shall extend through the roof flashing, roof jack or roof thimble and terminate with a listed cap or listed roof assembly. 503.6.8 Forced air inlets. Gas vents shall terminate not less than 3 feet (914 min) above any forced air inlet located within 10 feet (3048 mm). 503.6.9 Exterior wall penetrations. A gas vent extending through an exterior wall shall not terminate adjacent to the wall or below eaves or parapets, except as provided in Sections 503.2.3 and 503.3.3. 503.6.10 Size of gas vents. Venting systems shall be sized and constructed in accordance with Sections 503.6.10.1 through 503.6.10.4 and the appliance manufacturer's installation instructions. LOWEST DISCHARGE OPENING LISTED CAP LISTED VENT x ROOFSLOPE IS X/12 H (MIN.) - MINIMUM HEIGHT FROM ROOF TO LOWEST DISCHARGE OPENING ROOF SLOPE H (min) ft Flat to 6/12 1.0 Over 6/12 to 7/12 1.25 Over 7/12 to 8/12 1.5 Over 8/12 to 9/12 2.0 Over 9/12 to 10/12 2.5 Over 10/12 to 11/12 3.25 Over 11/12 to 12/12 4.0 Over 12/12 to 14/12 5.0 Over 14/12 to 16/12 6.0 Over 16/12 to 18/12 7.0 Over 18/12 to 20/12 7.5 Over 20/12 to 21/12 8.0 For SL 1 inch = 25.4 ram, 1 foot = 304.8 ram. FIGURE 603.6.6 TERMINATION LOCATIONS FOR GAS VENTS WITH LISTED CAPS 12 INCHES OR LESS IN SIZE NOT LESS THAN 8 FEET FROM A VERTICAL WALL 90 2018 INTERNATIONAL FUEL GAS CODE® Copy,,ght @ 2017ICC ALL RIGHTS RESERVED A ... —d by H,Fth,, Va Dm (hv h.,@f .Ov ood com), (C,ry of F,—O-ood) O,d,, Numb,, #100817036 ov It, 15, ww 06 so AM (PST) pug —t to U...s, Ag... m t w th ICC No fu,the rep,od.,tiov, vo fu,th,,,,p,oduchovs by a.y th�,d pa,ry, o, dust,buho. a.tho,.,d Smgl, —, ovly, copymg -d v two,kmg p,oIt1A ,a ANY UNAUTHORIZED REPRODUCTION OR DISTRIBUTION IS A VIOLATION OF THE FEDERAL COPYRIGHT ACT AND THE LICENSE AGREEMENT, AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER CHIMNEYS AND VENTS 503.6.10.1 Category I appliances. The sizing of natu- ral draft venting systems serving one or more listed appliances equipped with a draft hood or appliances listed for use with Type B gas vent, installed in a single story of a building, shall be in accordance with one of the following methods 1 The provisions of Section 504 2 For sizing an individual gas vent for a single, draft -hood -equipped appliance, the effective area of the vent connector and the gas vent shall be not less than the area of the appliance draft hood out- let, nor greater than seven times the draft hood outlet area 3 For sizing a gas vent connected to two appliances with draft hoods, the effective area of the vent shall be not less than the area of the larger draft hood outlet plus 50 percent of the area of the smaller draft hood outlet, nor greater than seven times the smaller draft hood outlet area 4 Approved engineering practices 503.6.10.2 Vent offsets. Type B and L vents sized in accordance with Item 2 or 3 of Section 503 6 10 1 shall extend in a generally vertical direction with offsets not exceeding 45 degrees (0 79 rad), except that a vent sys- tem having not more than one 60-degree (1 04 rad) off- set shall be permitted Any angle greater than 45 degrees (0 79 rad) from the vertical is considered hori- zontal The total horizontal distance of a vent plus the horizontal vent connector serving draft -hood -equipped appliances shall be not greater than 75 percent of the vertical height of the vent 503.6.10.3 Category II, III and IV appliances. The sizing of gas vents for Category II, III and IV appli- ances shall be in accordance with the appliance manu- facturer's instructions The sizing of plastic pipe that is specified by the appliance manufacturer as a venting material for Category II, III and IV appliances shall be in accordance with the manufacturer's instructions 503.6.10.4 Mechanical draft Chimney venting sys- tems using mechanical draft shall be sized in accor- dance with approved engineering methods 503.6.11 Gas vents serving appliances on more than one floor. A common vent shall be permitted m multistory installations to vent Category I appliances located on more than one floor level, provided that the venting system is designed and installed in accordance with approved engi- neering methods For the purpose of this section, crawl spaces, basements and attics shall be considered to be floor levels 503.6.11.1 Appliance separation. Appliances con- nected to the common vent shall be located in rooms separated from occupiable space Each of these rooms shall have provisions for an adequate supply of com- bustion, ventilation and dilution au that is not supplied from an occupiable space 503.6.11.2 Sizing. The size of the connectors and com- mon segments of multistory venting systems for appli- ances listed for use with Type B double -wall gas vents shall be in accordance with Table 5043(1), provided that 1 The available total height (I) for each segment of a multistory venting system is the vertical dis- tance between the level of the highest draft hood outlet or flue collar on that floor and the center- line of the next highest interconnection tee 2 The size of the connector for a segment is deter- mined from the appliance input rating and avail- able connector rise and shall be not smaller than the draft hood outlet or flue collar size 3 The size of the common vertical segment, and of the interconnection tee at the base of that seg- ment, shall be based on the total appliance input rating entering that segment and its available total height 503.6.12 Support of gas vents. Gas vents shall be sup- ported and spaced in accordance with the manufacturer's installation instructions 503.6.13 Marking. In those localities where solid and liq- uid fuels are used extensively, gas vents shall be pemia- nently identified by a label attached to the wall or ceiling at a point where the vent connector enters the gas vent The detennmation of where such localities exist shall be made by the code official The label shall read "This gas vent is for appliances that bum gas Do not connect to solid or liquid fuel -burning appliances or incin- erators" 503.6.14 Fastener penetrations. Screws, rivets and other fasteners shall not penetrate the inner wall of double -wall gas vents, except at the transition from an appliance draft hood outlet, a flue collar or a single -wall metal connector to a double -wall vent 503.7 Single -wall metal pipe. Smgle-wall metal pipe vents shall comply with Sections 503 7 1 through 503 7 13 503.7.1 Construction. Single -wall metal pipe shall be constructed of galvanized sheet steel not less than 0 0304 inch (0 7 mm) thick, or other approved noncombustible, corrosion -resistant material 503.7.2 Cold climate. Umnsulated single -wall metal pipe shall not be used outdoors for venting appliances in regions where the 99-percent winter design temperature is below 32°F (0°C) 503.7.3 Termination. Single -wall metal pipe shall termi- nate not less than 5 feet (1524 mm) in vertical height above the highest connected appliance draft hood outlet or flue collar Single -wall metal pipe shall extend not less than 2 feet (610 mm) above the highest point where it passes through a roof of a building and not less than 2 feet (610 mm) higher than any portion of a building within a horizontal distance of 10 feet (3048 mm) An approved cap or roof assembly shall be attached to the terminus of a single -wall metal pipe 2018 INTERNAT10NAL FUEL GAS CODE" 91 I 1 1 1 CALFIEIL @ 2017 ICC ALL RIGHTS RESERVED A—LDd by H®Ih¢ Van Dme(Rv dme pooch od om),(Dty of FRmdNmod)O[do, Nomb,,*1008170S601 JM 15. ZMO oc 51 AM (PET) t to ( Lie Affiee^® Rt, ICC No fwN¢[TAodomoo.m AtO,Pepeodomo- by any Ot Party o, Axmboemdm6o d Mglo—ody mpyncg and Nyodwg LARISAd ANY VNAVTHO RIVER REPLA VCTION OR DISIRIBITTO N IS A VIOLATION OF THE FEDERAL COPYRIGHT ACT AND THE LICENSE AGREEMENT. AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER CHIMNEYS AND VENTS 503.7.4 Limitations of use. Single -wall metal pipe shall be used only for runs directly from the space in which the appliance is located through the roof or exterior wall to the outdoor atmosphere 503.7.5 Roof penetrations. A pipe passing through a roof shall extend without interruption through the roof flashing, roof jack or roof thimble Where a single -wall metal pipe passes through a roof constructed of combustible material, a noncombustible, nonventilating thimble shall be used at the point of passage The thimble shall extend not less than 18 inches (457 mm) above and 6 inches (152 mm) below the roof with the annular space open at the bottom and closed only at the top The thimble shall be sized in accor- dance with Section 503 7 7 503.7.6Installation. Single -wall metal pipe shall not orig- inate in any unoccupied attic or concealed space and shall not pass through any attic, inside wall, concealed space or floor The installation of a single -wall metal pipe through an exterior combustible wall shall comply with Section 50377 503.7.7 Single -wall penetrations of combustible walls. A single -wall metal pipe shall not pass through a combus- tible exterior wall unless guarded at the point of passage by a ventilated metal thimble not smaller than the follow- ing 1 For listed appliances with draft hoods and appli- ances listed for use with Type B gas vents, the thim- ble shall be not less than 4 inches (102 mm) larger in diameter than the metal pipe Where there is a run of not less than 6 feet (1829 mm) of metal pipe in the open between the draft hood outlet and the thimble, the thimble shall be permitted to be not less than 2 inches (51 mm) larger in diameter than the metal pipe 2 For unlisted appliances having draft hoods, the thim- ble shall be not less than 6 inches (152 mm) larger in diameter than the metal pipe 3 For residential and low -heat appliances, the thimble shall be not less than 12 inches (305 mm) larger in diameter than the metal pipe Exception: In lieu of thimble protection, all combusti- ble material in the wall shall be removed a sufficient distance from the metal pipe to provide the specified clearance from such metal pipe to combustible mate- nal Any material used to close up such opening shall be noncombustible 503.7.8 Clearances. Nfinimum clearances from single - wall metal pipe to combustible material shall be in accor- dance with Table 503 10 5 The clearance from single - wall metal pipe to combustible material shall be permitted to be reduced where the combustible material is protected as specified for vent connectors in Table 308 2 503.7.9 Size of single -wall metal pipe. A venting system constructed of single -wall metal pipe shall be sized in accordance with one of the following methods and the appliance manufacturer's instructions 1 For a draft -hood -equipped appliance, in accordance with Section 504 2 For a venting system for a single appliance with a draft hood, the areas of the connector and the pipe each shall be not less than the area of the appliance flue collar or draft hood outlet, whichever is smaller The vent area shall be not greater than seven tunes the draft hood outlet area 3 Other approved engineering methods 503.7.10 Pipe geometry. Any shaped single -wall metal pipe shall be permitted to be used, provided that its equiv- alent effective area is equal to the effective area of the round pipe for which it is substituted, and provided that the minimum internal dimension of the pipe is not less than 2 inches (51 mm) 503.7.11 Termination capacity. The vent cap or a roof assembly shall have a venting capacity of not less than that of the pipe to wluch it is attached 503.7.12 Support of single -wall metal pipe. All portions of single -wall metal pipe shall be supported for the design and weight of the material employed 503.7.13 Marking. Single -wall metal pipe shall comply with the marking provisions of Section 503 6 13 503.8 Venting system termination location. The location of venting system termmations shall comply with the following (see Appendix C) 1 A mechanical draft venting system shall termmate not less than 3 feet (914 mm) above any forced -air inlet located within 10 feet (3048 mm) Exceptions: 1 This provision shall not apply to the combus- tion air intake of a direct -vent appliance 2 This provision shall not apply to the separa- tion of the integral outdoor air inlet and flue gas discharge of listed outdoor appliances 2 A mechanical draft venting system, excluding direct - vent appliances, shall termmate not less than 4 feet (1219 mm) below, 4 feet (1219 mm) horizontally from, or 1 foot (305 mm) above any door, operable window or gravity air inlet into any building The bottom of the vent terminal shall be located not less than 12 inches (305 mm) above finished ground level 3 The clearances for through -the -wall, direct -vent termJ- nals shall be in accordance with Table 503 8 The bot- tom of the vent terminal and the air intake shall be located not less than 12 inches (305 mm) above fin- ished ground level 4 Through -the -wall vents for Category II and IV appli- ances and noncategorized condensing appliances shall not termmate over public walkways or over an area where condensate or vapor could create a nuisance or hazard or could be detrimental to the operation of regu- lators, relief valves or other equipment Where local experience indicates that condensate is a problem with Category I and III appliances, this provision shall also apply Drains for condensate shall be installed in accor- dance with the appliance and vent manufacturers' instructions 5 Vent systems for Category IV appliances that termmate through an outside wall of a building and discharge flue 92 2018 INTERNATIONAL FUEL GAS CODE" rill 1 1 UER Copyngbt Oo 2.017 ICC ALL RIGHTS RESERVED A—LDd by H®Ih¢ Van Dme(Rv dme Oo,dv od om).(Qtyof PnmdNmod)O,do,N=b¢*1008170S601 JM 15, Z.mo oc 51 AM (GET) mtto S I ( 1, sAg,e^ '^Rt, ICC No otths TAodomoo. m AtOy odomo- by any Ot Party o, AAmboema,Ooossd Mgle —ooly o,and Nyodwg GMIRISAd ANY VNAVTHO OLDER REPROD VCIION OR D ISIRIEVTION IS VIOLATION OP THE FEDERAL COPYRIGHT 11 AND THE LICENSE AGREEME NT. AND REJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER CHIMNEYS AND VENTS gases perpendicular to the adjacent wall shall be located not less than 10 feet (3048 mm) horizontally from an operable opening in an adjacent building This requirement shall not apply to vent terminals that are 2 feet (607 mm) or more above or 25 feet (7620 mm) or more below operable openings TABLE 503.8 THROUGH -THE -WALL, DIRECT -VENT TERMINATION CLEARANCES DIRECT -VENT THROUGH -THE -WALL VENT APPLIANCE INPUT RATING TERMINAL CLEARANCE FROM ANY (BW/hr) AIR OPENING INTO THE BUILDING (inches) < 10,000 6 >_ 10,000 <50,000 9 > 50,000 < 150,000 12 In accordance with the appliance > 150,000 manufacturer's instructions and not less than the clearances specified in Section 503 8, Item 2 For SI 1 inch = 25 4 min, 1 Biu/h = 0 2931 W 503.9 Condensation drainage. Provisions shall be made to collect and dispose of condensate from venting systems serv- ing Category II and IV appliances and noncategorized con- densing appliances in accordance with Section 503 8, Item 4 Where local experience indicates that condensation is a prob- lem, provisions shall be made to dram off and dispose of con- densate from venting systems serving Category I and III appliances in accordance with Section 503 8, Item 4 503.10 Vent connectors for Category I appliances. Vent connectors for Category I appliances shall comply with Sec- tions 503 10 1 through 503 10 14 503.10.1 Where required. A vent connector shall be used to connect an appliance to a gas vent, chimney or single - wall metal pipe, except where the gas vent, chimney or single -wall metal pipe is directly connected to the appli- ance 503.10.2 Materials. Vent connectors shall be constructed in accordance with Sections 503 102 1 through 503 1025 503.10.2.1 General. A vent connector shall be made of noncombustible corrosion -resistant material capable of withstanding the vent gas temperature produced by the appliance and of sufficient thickness to withstand phys- ical damage 503.10.2.2 Vent connectors located in unconditioned areas. Where the vent connector used for an appliance having a draft hood or a Category I appliance is located in or passes through attics, crawl spaces or other uncon- ditioned spaces, that portion of the vent connector shall be listed Type B, Type L or listed vent material having equivalent insulation properties Exception: Single -wall metal pipe located within the exterior walls of the building in areas having a local 99-percent winter design temperature of 5'F (-15°C) or higher shall be permitted to be used in uncondi- tioned spaces other than attics and crawl spaces 503.10.2.3 Residential -type appliance connectors. Where vent connectors for residential -type appliances are not installed in attics or other unconditioned spaces, connectors for listed appliances having draft hoods, appliances having draft hoods and equipped with listed conversion burners and Category I appliances shall be one of the following 1 Type B or L vent material 2 Galvanized sheet steel not less than 0 018 inch (0 46 mm) thick 3 Aluminum (1100 or 3003 alloy or equivalent) sheet not less than 0 027 inch (0 69 mm) thick 4 Stainless steel sheet not less than 0 012 inch (0 31 mm) thick 5 Smooth interior wall metal pipe having resistance to heat and corrosion equal to or greater than that of Item 2, 3 or 4 6 A listed vent connector Vent connectors shall not be covered with msula- tion Exception: Listed insulated vent connectors shall be installed in accordance with the manufacturer's instructions 503.10.2.4 Low -heat equipment. A vent connector for a nonresidential, low -heat appliance shall be a factory - built chimney section or steel pipe having resistance to heat and corrosion equivalent to that for the appropriate galvanized pipe as specified in Table 503 10 2 4 Fac- tory -built chimney sections shall be joined together in accordance with the chimney manufacturer's instruc- tions TABLE 503.10.2.4 MINIMUM THICKNESS FOR GALVANIZED STEEL VENT CONNECTORS FOR LOW -HEAT APPLIANCES DIAMETER OF CONNECTOR (inches) MINIMUM THICKNESS (inch) Less titan 6 0 019 6 to less than 10 0 023 10 to 12 inclusive 0 029 14 to 16 inclusive 0 034 Over 16 0 056 For SI 1 inch = 25 4 min 503.10.2.5 Medium -heat appliances. Vent connectors for medium -heat appliances shall be constructed of fac- tory -built medium -heat chimney sections or steel of a thickness not less than that specified in Table 503 10 2 5 and shall comply with the following 1 A steel vent connector for an appliance with a vent gas temperature in excess of 1,000'F (538'C) measured at the entrance to the connec- tor shall be lined with medium -duty fire brick (ASTM C64, Type F), or the equivalent 2 The lining shall be not less than 2'/ inches (64 mm) thick for a vent connector having a diameter 2018 INTERNATIONAL FUEL GAS CODE® 93 I 1 1 1 CITFIght @ 2017 ICC ALL RIGHTS RESERVED A—LDd by H®Ih¢ Van Dme(Rv dme pooch od om),(Qty of FRmdNmod) O[do, Nomb,,*1008170S601 JM 15, m0 oc 51 AM (PET) t to ( Lie Affiee^® Rt, ICC No fwN¢[TAodomoo.m AtO,Pepeodomo- by any Ot Party o, Axmboemdmho d Mglo—ody mpyncg and Nyodwg LARISAd ANY VNAVTHO RIVER REICLA VCTION OR DISIRIBITTO N IS A VIOLATION OF THE FEDERAL COPYRIGHT ACT AND THE LICENSE AGREEMENT. AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER CHIMNEYS AND VENTS or greatest cross -sectional dimension of 18 inches (457 mm) or less 3 The hiring shall be not less than 4'/ inches (114 mm) thick laid on the 4'/z mch (114 mm) bed for a vent connector having a diameter or greatest cross -sectional dimension greater than 18 inches (457 mm) 4 Factory -built chimney sections, if employed, shall be joined together in accordance with the chimney manufacturer's instructions TABLE 503.10.2.5 MINIMUM THICKNESS FOR STEEL VENT CONNECTORS FOR MEDIUM -HEAT APPLIANCES VENT CONNECTOR SIZE Diameter (inches) Area (square inches) MINIMUM THICKNESS (inch) Up to 14 Up to 154 0 053 Over 14 to 16 154 to 201 0 067 Over 16 to 18 201 to 254 0 093 Over 18 Larger than 254 0 123 For SI 1 inch = 25 4 min, 1 square inch = 645 16 min' 503.10.3 Size of vent connector. Vent connectors shall be sized in accordance with Sections 503 10 3 1 through 5031035 503.10.3.1 Single draft hood and fan -assisted. A vent connector for an appliance with a single draft hood or for a Category I fan -assisted combustion system appli- ance shall be sized and installed in accordance with Section 504 or other approved engineering methods 503.10.3.2 Multiple draft hood. For a single appliance having more than one draft hood outlet or flue collar, the manifold shall be constructed according to the instructions of the appliance manufacturer Where there are no instructions, the manifold shall be designed and constructed in accordance with approved engineer - mg practices As an alternate method, the effective area of the manifold shall equal the combined area of the flue collars or draft hood outlets and the vent connec- tors shall have a mmimum 1-foot (305 mm) rise 503.10.3.3 Multiple appliances. Where two or more appliances are connected to a common vent or chimney, each vent connector shall be sized in accordance with Section 504 or other approved engineering methods As an alternative method applicable only where all of the appliances are draft hood equipped, each vent connector shall have an effective area not less than the area of the draft hood outlet of the appliance to wluch it is connected 503.10.3.4 Common connector/manifold. Where two or more appliances are vented through a common vent connector or vent manifold, the common vent connec- tor or vent manifold shall be located at the highest level consistent with available headroom and the required clearance to combustible materials and shall be sized in accordance with Section 504 or other approved engi- neering methods As an alternate method applicable only where there are two draft hood -equipped appliances, the effective area of the common vent connector or vent manifold and all junction fittings shall be not less than the area of the larger vent connector plus 50 percent of the area of the smaller flue collar outlet 503.10.3.5 Size increase. Where the size of a vent con- nector is increased to overcome installation limitations and obtain connector capacity equal to the appliance input, the size increase shall be made at the appliance draft hood outlet 503.10.4 Two or more appliances connected to a single vent or chimney. Where two or more vent connectors enter a common vent, chimney flue or single -wall metal pipe, the smaller connector shall enter at the highest level consistent with the available headroom or clearance to combustible material Vent connectors serving Category I appliances shall not be connected to any portion of a mechanical draft system operating under positive static pressure, such as those serving Category III or IV appli- ances 503.10.4.1 Two or more openings. Where two or more openings are provided into one chimney flue or vent, the openings shall be at different levels, or the connec- tors shall be attached to the vertical portion of the chim- ney or vent at an angle of 45 degrees (0 79 rad) or less relative to the vertical 503.10.5 Clearance. Minimum clearances from vent con- nectors to combustible material shall be in accordance with Table 503 10 5 Exception: The clearance between a vent connector and combustible material shall be permitted to be reduced where the combustible material is protected as specified for vent connectors in Table 308 2 503.10.6 Joints. Joints between sections of connector pip- ing and connections to flue collars and draft hood outlets shall be fastened by one of the following methods 1 Sheet metal screws 2 Vent connectors of listed vent material assembled and connected to flue collars or draft hood outlets in accordance with the manufacturers' instructions 3 Other approved means 503.10.7 Slope. A vent connector shall be installed with- out dips or sags and shall slope upward toward the vent or clumney not less than'/q inch per foot (21 mm/m) Exception: Vent connectors attached to a mechanical draft system installed in accordance with the appliance and draft system manufacturers' instructions 503.10.8 Length of vent connector. The maximum hori- zontal length of a single -wall connector shall be 75 percent of the height of the chimney or vent except for engineered systems The maximum horizontal length of a Type B double -wall connector shall be 100 percent of the height of the chimney or vent except for engineered systems 94 2018 INTERNATIONAL FUEL GAS CODE" 1 1 1 TTRR(Aryaght Oo 2.017 ICC ALL RIGHTS RESERVED A—LDd by H®Ih¢ Van Dme(Rv dme pooch od om),(Qty of FRmdNmod) O[do, Nomb,,*1008170S601 JM 15, m0 0651 AM (PET) mt to I I ( 1, xAg,e^ '^Rt, ICC Nootths TAodomo,,m Athsodomo-by any Ot Party o[Axmboemdmho[vsd Mglo— o,IAo, and Nyodwg L-IRISed ANY VNAVTHO OLDER REPROD VCIION OR D ISIRIEVTION IS VIOLATION OP THE FED REAL COPYRIGHT 11 AND THE LICENSE A G RE EM EM. AND REJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER CHIMNEYS AND VENTS 503.10.9 Support. A vent connector shall be supported for the design and weight of the material employed to main- tain clearances and prevent physical damage and separa- tion of joints 503.10.10 Chimney connection. Where entering a flue in a masonry or metal chimney, the vent connector shall be installed above the extreme bottom to avoid stoppage Where a thimble or slip joint is used to facilitate removal of the connector, the connector shall be firmly attached to or inserted into the thimble or slip joint to prevent the con- nector from falling out Means shall be employed to pre- vent the connector from entering so far as to restrict the space between its end and the opposite wall of the chim- ney flue (see Section 501 9) 503.10.11 Inspection. The entire length of a vent connec- tor shall be provided with ready access for inspection, cleaning and replacement 503.10.12 Fireplaces. A vent connector shall not be con- nected to a chimney flue serving a fireplace unless the fireplace flue opening is permanently sealed 503.10.13 Passage through ceilings, floors or walls. Sin- gle -wall metal pipe connectors shall not pass through any wall, floor or ceiling except as permitted by Section 50374 503.10.14 Medium -heat connectors. Vent connectors for medium -heat appliances shall not pass through walls or partitions constructed of combustible material 503.11 Vent connectors for Category II, III and IV appli- ances. Vent connectors for Category II, III and IV appliances shall be as specified for the venting systems in accordance with Section 503 4 503.12 Draft hoods and draft controls. The installation of draft hoods and draft controls shall comply with Sections 503 12 1 through 503 12 7 503.12.1 Appliances requiring draft hoods. Vented appliances shall be installed with draft hoods Exception: Dual oven -type combination ranges, ckrect--vent appliances, fan -assisted combustion sys- tem appliances, appliances requiring chimney draft for operation, single firebox boilers equipped with conver- sion burners with inputs greater than 400,000 Btu per hour (117 kW), appliances equipped with blast, power or pressure burners that are not listed for use with draft hoods, and appliances designed for forced venting 503.12.2 Installation. A draft hood supplied with or form- ing a part of a listed vented appliance shall be installed without alteration, exactly as furnished and specified by the appliance manufacturer 503.12.2.1 Draft hood required. If a draft hood is not supplied by the appliance manufacturer where one is required, a draft hood shall be installed, shall be of a listed or approved type and, in the absence of other instructions, shall be of the same size as the appliance flue collar Where a draft hood is required with a con- version burner, it shall be of a listed or approved type 503.12.2.2 Special design draft hood. Where it is determined that a draft hood of special design is needed or preferable for a particular installation, the installa- tion shall be in accordance with the recommendations of the appliance manufacturer and shall be approved 503.12.3 Draft control devices. Where a draft control device is part of the appliance or is supplied by the appli- ance manufacturer, it shall be installed in accordance with the manufacturer's instructions In the absence of manu- facturer's instructions, the device shall be attached to the flue collar of the appliance or as near to the appliance as practical 503.12.4 Additional devices. Appliances requiring a con- trolled chimney draft shall be permitted to be equipped with a listed double-acting barometric -draft regulator installed and adjusted in accordance with the manufac- turer's instructions 503.12.5 Location. Draft hoods and barometric draft regu- lators shall be installed in the same room or enclosure as the appliance in such a manner as to prevent any differ- ence in pressure between the hood or regulator and the combustion air supply TABLE 503.10.5' CLEARANCES FOR CONNECTORS APPLIANCE MINIMUM DISTANCE FROM COMBUSTIBLE MATERIAL Listed Type B gas vent material Listetl Type L vent material Single -wall metal pipe Factory -built chimney sections Listed appliances with draft hoods and appliances listed for use with Type B gas vents As listed As listed 6 inches As listed Residential boilers and furnaces with listed gas conversion bumer and with draft hood 6 inches 6 inches 9 inches As listed Residential appliances listed for use with Type L vents Not permitted As listed 9 inches As listed Listed gas -fired toilets Not permitted As listed As listed As listed Unlisted residential appliances with draft hood Not permitted 6 inches 9 inches As listed Residential and low -heat appliances other than above Not permitted 9 inches 18 inches As listed Medium -heat appliances Not permitted Not permitted 1 36 inches As listed For SI 1 inch = 25 4 min a These clearances shall apply unless the manufacturer's installation instructions for a listed appliance or connector specify different clearances, in which case the listed clearances shall apply 2018 INTERNATIONAL FUEL GAS CODE" 95 I 1 1 1 CITFIght @ 2017 ICC ALL RIGHTS RESERVED A—LDd by H®Ih¢ Van DmA(Rv dme Oo,dA od om),(Qty of FRmdNmod)O[do, Nomb,,*1008170S601 JM 15, ZMO oc 51 AM (PET) rt,—t to ( LEA Ag,,aRt, ICC NofwN¢[Todomo,,mAtO, Tgoodomo- by any Ot Party oT AAmboemdmho[vsd Mglo—ody oTyncg and Nyodwg r oARISed ANY VNAVTHO RIVER REICLA VCTION OR DISIRIRTHO N IS A VIOLATION OF THE FEDERAL COPYRIGHT ACT AND THE LICENSE AGREEMENT. AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER CHIMNEYS AND VENTS 503.12.6 Positioning. Draft hoods and draft regulators shall be installed in the position for which they were designed with reference to the horizontal and vertical planes and shall be located so that the relief opening is not obstructed by any part of the appliance or adjacent con- struction The appliance and its draft hood shall be located so that the relief opening is accessible for checking vent operation 503.12.7 Clearance. A draft hood shall be located so its relief opening is not less than 6 inches (152 mm) from any surface except that of the appliance it serves and the vent- ing system to which the draft hood is connected Where a greater or lesser clearance is indicated on the appliance label, the clearance shall be not less than that specified on the label Such clearances shall not be reduced 503.13 Manually operated dampers. A manually operated damper shall not be placed in the vent connector for any appliance Fixed baffles shall not be classified as manually operated dampers 503.14 Automatically operated vent dampers. An automat- ically operated vent damper shall be of a listed type 503.15 Obstructions. Devices that retard the flow of vent gases shall not be installed in a vent connector, chimney or vent The following shall not be considered as obstructions 1 Draft regulators and safety controls specifically listed for installation in venting systems and installed in accordance with the manufacturer's instructions 2 Approved draft regulators and safety controls that are designed and installed in accordance with approved engineering methods 3 Listed heat reclaimers and automatically operated vent dampers installed in accordance with the manufac- turer's instructions 4 Approved economizers, heat reclaimers and recupera- tors installed in venting systems of appliances not required to be equipped with draft hoods, provided that the appliance manufacturer's instructions cover the installation of such a device in the venting system and performance in accordance with Sections 503 3 and 503 3 1 is obtained 5 Vent dampers serving listed appliances installed in accordance with Sections 504 2 1 and 504 3 1 or other approved engineering methods 503.16 Outside wall penetrations. Where vents, including those for direct -vent appliances, penetrate outside walls of buildings, the annular spaces around such penetrations shall be permanently sealed using approved materials to prevent entry of combustion products into the building SECTION 504 (IFGS) SIZING OF CATEGORY I APPLIANCE VENTING SYSTEMS 504.1 Definitions. The following definitions apply to the tables in this section APPLIANCE CATEGORIZED VENT DIAMETER/ AREA. The minimum vent area/diameter permissible for Category I appliances to maintain a nonpositive vent static pressure when tested in accordance with nationally recog- nized standards FAN -ASSISTED COMBUSTION SYSTEM. An appliance equipped with an integral mechanical means to either draw or force products of combustion through the combustion cham- ber or heat exchanger FAN Min. The minimum input rating of a Category I fan - assisted appliance attached to a vent or connector FAN Max. The maximum input rating of a Category I fan - assisted appliance attached to a vent or connector FAN + FAN. The maximum combined appliance input rat- ing of two or more Category I fan -assisted appliances attached to the common vent FAN + NAT. The maximum combined appliance input rat- ing of one or more Category I fan -assisted appliances and one or more Category I draft -hood -equipped appliances attached to the common vent NA. Vent configuration is not allowed due to potential for condensate formation or pressurization of the venting system, or not applicable due to physical or geometric restraints NAT Max. The maximum input rating of a Category I draft - hood -equipped appliance attached to a vent or connector NAT + NAT. The maximum combined appliance input rat- ing of two or more Category I draft -hood -equipped appli- ances attached to the common vent 504.2 Application of single -appliance vent Tables 504.2(1) through 504.2(6). The application of Tables 504 2(1) through 504 2(6) shall be subject to the requirements of Sec- tions 504 2 1 through 504 2 17 504.2.1 Vent obstructions. These venting tables shall not be used where obstructions, as described in Section 503 15, are installed in the venting system The mstalla- tion of vents serving listed appliances with vent dampers shall be in accordance with the appliance manufacturer's instructions or in accordance with the following 1 The maximum capacity of the vent system shall be determined using the "NAT Max" column 2 The minimum capacity shall be determined as if the appliance were a fan -assisted appliance, using the "FAN Min" column to detenmme the minimum capacity of the vent system Where the correspond- ing "FAN Min" is "NA," the vent configuration shall not be permitted and an alternative venting configuration shall be utilized 504.2.2 Minimum size. Where the vent size determined from the tables is smaller than the appliance draft hood outlet or flue collar, the smaller size shall be permitted to be used provided that all of the following requirements are met 1 The total vent height (I) is not less than 10 feet (3048 mm) 2 Vents for appliance draft hood outlets or flue collars 12 inches (305 mm) in diameter or smaller are not reduced more than one table size 96 2018 INTERNATIONAL FUEL GAS CODE" Copyngbt @ 2017 ICC ALL RIGHTS RESERVED A—LDd by H®Ih¢ Van DmA(Rv dme Oo,dA od om),(Dty of FRmdNmod) O[do, N=b6 xl 008170S601 JM 15, m0 oc 51 AM (GET) mt to S I (firill PETER 1, Ag,'^Rt, ICC No otths TAodomoo. m AtOy odomo- by any Ot Party o[ AAmboemd,Oo[vsd Mgle —ooly o,and Nyodwg GMIRISAd ANY VNAVTHO OLDER REPROD ,,MN OR D ISIRIEVTION IS VIOLATION OP THE FEDERAL COPYRIGHT 11 AND THE LICENSE AGRE EM ENT. AND REJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER CHIMNEYS AND VENTS 3 Vents for appliance draft hood outlets or flue collars larger than 12 inches (305 mm) in diameter are not reduced more than two table sizes 4 The maximum capacity listed in the tables for a fan - assisted appliance is reduced by 10 percent (0 90 x maximum table capacity) 5 The draft hood outlet is greater than 4 inches (102 mm) in diameter Do not connect a 3-inch-diameter (76 mm) vent to a 4-mch-diameter (102 mm) draft hood outlet This provision shall not apply to fan - assisted appliances 504.2.3 Vent offsets. Single -appliance venting configura- tions with zero (0) lateral lengths in Tables 504 2(1), 504 2(2) and 504 2(5) shall not have elbows in the venting system Single -appliance venting configurations with lat- eral lengths include two 90-degree (1 57 rad) elbows For each additional elbow up to and including 45 degrees (079 rad), the maximum capacity listed in the venting tables shall be reduced by 5 percent For each additional elbow greater than 45 degrees (0 79 rad) up to and mclud- mg 90 degrees (1 57 rad), the maximum capacity listed in the venting tables shall be reduced by 10 percent Where multiple offsets occur in a vent, the total lateral length of all offsets combined shall not exceed that specified in Tables 504 2(1) through 504 2(5) 504.2.4 Zero lateral. Zero (0) lateral (L) shall apply only to a straight vertical vent attached to a top outlet draft hood or flue collar 504.2.5 High -altitude installations. Sea -level input rat- ings shall be used when determming maximum capacity for lugh altitude installation Actual input (derated for alti- tude) shall be used for determmmg minimum capacity for high altitude installation 504.2.6 Multiple input rate appliances. For appliances with more than one input rate, the mimmum vent capacity (FAN Min) determined from the tables shall be less than the lowest appliance input rating, and the maximum vent capacity (FAN Max/NAT Max) determined from the tables shall be greater than the highest appliance rating input 504.2.7 Liner system sizing and connections. Listed cor- rugated metallic chimney liner systems in masonry chim- neys shall be sized by using Table 504 2(1) or 504 2(2) for Type B vents with the maximum capacity reduced by 20 percent (0 80 x maximum capacity) and the mimmum capacity as shown in Table 504 2(1) or 504 2(2) Corru- gated metallic liner systems installed with bends or offsets shall have their maximum capacity further reduced in accordance with Section 504 2 3 The 20-percent reduc- tion for corrugated metallic chimney liner systems includes an allowance for one long -radius 90-degree (1 57 rad) turn at the bottom of the liner Connections between chimney liners and listed double - wall connectors shall be made with listed adapters designed for such purpose 504.2.8 Vent area and diameter. Where the vertical vent has a larger diameter than the vent connector, the vertical vent diameter shall be used to determine the minimum vent capacity, and the connector diameter shall be used to determme the maximum vent capacity The flow area of the vertical vent shall not exceed seven times the flow area of the listed appliance categorized vent area, flue collar area or draft hood outlet area unless designed in accor- dance with approved engineering methods 504.2.9 Chimney and vent locations. Tables 504 2(1), 504 2(2), 504 2(3), 504 2(4) and 504 2(5) shall be used only for chimneys and vents not exposed to the outdoors below the roof line A Type B vent or listed chimney lin- ing system passing through an unused masonry chimney flue shall not be considered to be exposed to the outdoors Where vents extend outdoors above the roof more than 5 feet (1524 mm) higher than required by Figure 503 6 5, and where vents terminate in accordance with Section 503 6 5, Item 2, the outdoor portion of the vent shall be enclosed as required by this section for vents not consid- ered to be exposed to the outdoors or such venting system shall be engineered A Type B vent shall not be considered to be exposed to the outdoors where it passes through an unventilated enclosure or chase insulated to a value of not less than R8 Table 504 2(3) in combination with Table 504 2(6) shall be used for clay -tile -lined exterior masonry chim- neys, provided that all of the following are met 1 Vent connector is a Type B double wall 2 Vent connector length is limited to P/ feet for each inch (18 mm per mm) of vent connector diameter 3 The appliance is draft hood equipped 4 The input rating is less than the maximum capacity given by Table 504 2(3) 5 For a water heater, the outdoor design temperature is not less than 5'F (-15'C) 6 For a space -heating appliance, the input rating is greater than the minimum capacity given by Table 504 2(6) 504.2.10 Corrugated vent connector size. Corrugated vent connectors shall be not smaller than the listed appli- ance categorized vent diameter, flue collar diameter or draft hood outlet diameter 504.2.11 Vent connector size limitation. Vent connectors shall not be increased in size more than two sizes greater than the listed appliance categorized vent diameter, flue collar diameter or draft hood outlet diameter 504.2.12 Component commingling. In a single ran of vent or vent connector, different diameters and types of vent and connector components shall be permitted to be used, provided that all such sizes and types are permitted by the tables 504.2.13 Draft hood conversion accessories. Draft hood conversion accessories for use with masonry chimneys venting listed Category I fan -assisted appliances shall be listed and installed in accordance with the manufacturer's instructions for such listed accessories 2018 INTERNAT10NAL FUEL GAS CODE" 97 I 1 1 1 CALFIEIL @ 2017 ICC ALL RIGHTS RESERVED A—LDd by H®Ih¢ Van Dme(Rv dme pooch od om),(Qty of FRmdNmod) O[do, Nomb,,*1008170S601 JM 15, m0 oc 51 AM (PET) t to ( Lie Affiee^® Rt, ICC No fwN¢[TAodomoo.m AtO,Pepeodomo- by any Ot Party o, Axmboemdm6o d Mglo—ody mpyncg and Nyodwg LARISAd ANY VNAVTHO RIVER REPLA VCTION OR DISIRIBITTO N IS A VIOLATION OF THE FEDERAL COPYRIGHT ACT AND THE LICENSE AGREEMENT. AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER CHIMNEYS AND VENTS 504.2.14 Table interpolation. Interpolation shall be per- mitted in calculating capacities for vent dimensions that fall between the table entries 504.2.15 Extrapolation prohibited. Extrapolation beyond the table entries shall not be permitted 504.2.16 Engineering calculations. For vent heights less than 6 feet (1829 mm) and greater than shown in the tables, engineering methods shall be used to calculate vent capacities 504.2.17 Height entries. Where the actual height of a vent falls between entries in the height column of the applicable table in Tables 504 2(1) through 504 2(6), either interpolation shall be used or the lower appliance input rating shown in the table entries shall be used for FAN MAX and NAT MAX column values and the higher appliance input rating shall be used for the FAN MIN column values 504.3 Application of multiple appliance vent Tables 504.3(1) through 504.3(7). The application of Tables 504 3(1) through 504 3(7b) shall be subject to the require- ments of Sections 504 3 1 through 504 3 28 504.3.1 Vent obstructions. These venting tables shall not be used where obstructions, as described in Section 503 15, are installed in the venting system The installa- tion of vents serving listed appliances with vent dampers shall be in accordance with the appliance manufacturer's instructions or in accordance with the following 1 The maximum capacity of the vent connector shall be determined using the NAT Max column 2 The maximum capacity of the vertical vent or chim- ney shall be determined using the FAN+NAT col- umn where the second appliance is a fan -assisted appliance, or the NAT+NAT column where the sec- ond appliance is equipped with a draft hood 3 The minimum capacity shall be determined as if the appliance were a fan -assisted appliance 3 1 The minimum capacity of the vent connector shall be determined using the FAN Min col- umn 32 The FAN+FAN column shall be used where the second appliance is a fan -assisted appli- ance, and the FAN+NAT column shall be used where the second appliance is equipped with a draft hood, to determine whether the vertical vent or chimney configuration is not permitted (NA) Where the vent configura- tion is NA, the vent configuration shall not be permitted and an alternative venting con- figuration shall be utilized 504.3.2 Connector length limit. The vent connector shall be routed to the vent utilizing the shortest possible route Except as provided in Section 504 3 3, the maximum vent connector horizontal length shall be 1'/z feet for each inch (18 mm per mm) of connector diameter as shown in Table 50432 504.3.3 Connectors with longer lengths. Connectors with longer horizontal lengths than those listed in Section 504 3 2 are permitted under the following conditions The maximum capacity (FAN Max or NAT Max) of the vent connector shall be reduced 10 percent for each additional multiple of the length allowed by Section 504 3 2 For example, the maximum length listed in Table 504 3 2 for a 4-inch (102 mm) con- nector is 6 feet (1829 mm) With a connector length greater than 6 feet (1829 mm) but not exceeding 12 feet (3658 mm), the maximum capacity must be reduced by 10 percent (0 90 x maximum vent con- nector capacity) With a connector length greater than 12 feet (3658 mm) but not exceeding 18 feet (5486 mm), the maximum capacity must be reduced by 20 percent (0 80 x maximum vent capacity) 2 For a connector serving a fan -assisted appliance, the minimum capacity (FAN Min) of the connector shall be determined by referring to the correspond- ing single -appliance table For Type B double -wall connectors, Table 504 2(1) shall be used For single - wall connectors, Table 504 2(2) shall be used The height (H) and lateral (L) shall be measured accord- ing to the procedures for a single -appliance vent, as if the other appliances were not present 504.3.4 Vent connector manifold. Where the vent con- nectors are combined prior to entering the vertical portion of the common vent to form a common vent manifold, the size of the common vent manifold and the common vent shall be determined by applying a 10-percent reduction (0 90 x maximum common vent capacity) to the common vent capacity part of the common vent tables The length of the common vent connector manifold (L) shall not exceed V/2 feet for each inch (18 mm per mm) of common vent connector manifold diameter (D) TABLE 504.3.2 MAXIMUM VENT CONNECTOR LENGTH CONNECTOR DIAMETER (inches) CONNECTOR MAXIMUM HORIZONTAL LENGTH (feet) 3 41/2 4 6 5 71/2 6 9 7 101/2 8 12 9 131/2 10 15 12 18 14 21 16 24 18 27 20 30 22 33 24 36 For SI 1 inch = 25 4 min, 1 foot= 304 8 min 98 2018 INTERNATIONAL FUEL GAS CODE" rill 1 1 UER(Arynght Oo 2.017 ICC ALL RIGHTS RESERVED A—LDd by H®Ih¢ Van Dme(Rv dme pooch od om),(Qty of FRmdNmod) O[do, N=b,, *1 008170S6 01 JM 15, m0 oc 51 AM (PET) mt to S ( I 1, xAg,e^ '^Rt, ICC No otths TAodomoo. m At6sodomo- by any Ot Party o[ Axmboemd,Oo[vsd Mgle—ooly o,and Nyodwg L-IRISed ANY VNAVTHO OLDER REPROD VCIION OR D ISIRIEUTION IS VIOLATION OP THE FEDERAL COPYRIGHT 11 AND THE LICENSE AGREEMEoff . AND REJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER CHIMNEYS AND VENTS 504.3.5 Common vertical vent offset. Where the com- mon vertical vent is offset, the maximum capacity of the common vent shall be reduced in accordance with Section 504 3 6 The horizontal length of the common vent offset (L) shall not exceed 1'/ feet for each inch (18 mm per mm) of common vent diameter (D) Where multiple off- sets occur in a common vent, the total horizontal length of all offsets combined shall not exceed 1 Yz feet for each inch (18 mm per mm) of common vent diameter (D) 504.3.6 Elbows in vents. For each elbow up to and mclud- ing 45 degrees (0 79 rad) in the common vent, the maxi- mum common vent capacity listed in the venting tables shall be reduced by 5 percent For each elbow greater than 45 degrees (0 79 rad) up to and including 90 degrees (1 57 rad), the maximum common vent capacity listed in the venting tables shall be reduced by 10 percent 504.3.7 Elbows in connectors. The vent connector capac- ities listed in the common vent sizing tables include allow- ance for two 90-degree (1 57 rad) elbows For each additional elbow up to and including 45 degrees (0 79 rad), the maximum vent connector capacity listed in the venting tables shall be reduced by 5 percent For each elbow greater than 45 degrees (0 79 rad) up to and mclud- ing 90 degrees (1 57 rad), the maximum vent connector capacity listed in the venting tables shall be reduced by 10 percent 504.3.8 Common vent minimum size. The cross -sec- tional area of the common vent shall be equal to or greater than the cross -sectional area of the largest connector 504.3.9 Common vent fittings. At the point where tee or wye fittings connect to a common vent, the opening size of the fitting shall be equal to the size of the common vent Such fittings shall not be prohibited from having reduced - size openings at the point of connection of appliance vent connectors 504.3.9.1 Tee and wye fittings. Tee and wye fittings connected to a common gas vent shall be considered to be part of the common gas vent and shall be con- structed of materials consistent with that of the com- mon gas vent 504.3.10 High -altitude installations. Sea -level input rat- ings shall be used when determining maximum capacity for high -altitude installation Actual input (derated for alti- tude) shall be used for detenmming minimum capacity for high -altitude installation 504.3.11 Connector rise measurement Connector rise (R) for each appliance connector shall be measured from the draft hood outlet or flue collar to the centerline where the vent gas streams come together 504.3.12 Vent height measurement For multiple appli- ances all located on one floor, available total height (H) shall be measured from the highest draft hood outlet or flue collar up to the level of the outlet of the common vent 504.3.13 Multistory height measurement. For multistory installations, available total height (H) for each segment of the system shall be the vertical distance between the high- est draft hood outlet or flue collar entering that segment and the centerlme of the next higher interconnection tee 504.3.14 Multistory lowest portion sizing. The size of the lowest connector and of the vertical vent leading to the lowest interconnection of a multistory system shall be in accordance with Table 504 2(1) or 504 2(2) for available total height (H) up to the lowest interconnection 504.3.15 Multistory common vents. Where used in mul- tistory systems, vertical common vents shall be Type B double wall and shall be installed with a fisted vent cap 504.3.16 Multistory common vent offsets. Offsets in multistory common vent systems shall be limited to a sin- gle offset in each system, and systems with an offset shall comply with all of the following 1 The offset angle shall not exceed 45 degrees (0 79 rad) from vertical 2 The horizontal length of the offset shall not exceed 11/ feet for each inch (18 mm per mm) of common vent diameter of the segment in which the offset is located 3 For the segment of the common vertical vent con - taming the offset, the common vent capacity listed in the common venting tables shall be reduced by 20 percent (0 80 x maximum common vent capacity) 4 A multistory common vent shall not be reduced in size above the offset: 504.3.17 Vertical vent maximum size. Where two or more appliances are connected to a vertical vent or chim- ney, the flow area of the largest section of vertical vent or clumney shall not exceed seven times the smallest listed appliance categorized vent areas, flue collar area or draft hood outlet area unless designed in accordance with approved engineering methods 504.3.18 Multiple input rate appliances. For appliances with more than one input rate, the minimum vent connec- tor capacity (FAN Min) determined from the tables shall be less than the lowest appliance input rating, and the maximum vent connector capacity (FAN Max or NAT Max) determined from the tables shall be greater than the highest appliance input rating 504.3.19 Liner system sizing and connections. Listed, corrugated metallic chimney liner systems in masonry clumneys shall be sized by using Table 5043(1) or 5043(2) for Type B vents, with the maximum capacity reduced by 20 percent (0 80 x maximum capacity) and the minmum capacity as shown in Table 5043(1) or 504 3(2) Corrugated metallic liner systems installed with bends or offsets shall have their maximum capacity further reduced in accordance with Sections 504 3 5 and 504 3 6 The 20-percent reduction for corrugated metallic chimney liner systems includes an allowance for one long -radius 90-degree (1 57 rad) turn at the bottom of the liner Where double -wall connectors are required, tee and wye fittings used to connect to the common vent chimney liner shall be listed double -wall fittings Connections between chimney 2018 INTERNAT10NAL FUEL GAS CODE" 99 I 1 1 1 CALFIEIL @ 2017 ICC ALL RIGHTS RESERVED A—LDd by H®Ih¢ Van Dme(Rv dme pooch od om),(Dty of FRmdNmod)O[do, Nomb,,*1008170S601 JM 15. ZMO oc 51 AM (PET) t to ( Lie Affiee^® Rt, ICC No fwN¢[TAodomoo.m AtO,Pepeodomo- by any Ot Party o, Axmboemdm6o d Mglo—ody mpyncg and Nyodwg LARISAd ANY VNAVTHO RIVER REPLA VCTION OR DISIRIBITTO N IS A VIOLATION OF THE FEDERAL COPYRIGHT ACT AND THE LICENSE AGREEMENT. AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER CHIMNEYS AND VENTS liners and listed double -wall fittings shall be made with listed adapter fittings designed for such purpose 504.3.20 Chimney and vent location. Tables 504 3(1), 504 3(2), 504 3(3), 504 3(4) and 504 3(5) shall be used only for chimneys and vents not exposed to the outdoors below the roof line A Type B vent or listed chimney lin- ing system passing through an unused masonry chimney flue shall not be considered to be exposed to the outdoors Where vents extend outdoors above the roof more than 5 feet (1524 mm) higher than required by Figure 503 6 5 and where vents terminate in accordance with Section 503 6 5, Item 2, the outdoor portion of the vent shall be enclosed as required by this section for vents not considered to be exposed to the outdoors or such venting system shall be engineered A Type B vent shall not be considered to be exposed to the outdoors where it passes through an unven- tilated enclosure or chase insulated to a value of not less than R8 Tables 504 3(6a), 504 3(6b), 504 3(7a) and 504 3(7b) shall be used for clay -tile -lined exterior masonry chim- neys, provided that all of the following conditions are met 1 Vent connectors are Type B double wall 2 Not less than one appliance is draft hood equipped 3 The combined appliance input rating is less than the maximum capacity given by Table 5043(6a) for NAT+NAT or Table 504 3(7a) for FAN+NAT 4 The input rating of each space -heating appliance is greater than the minimum input rating given by Table 504 3(6b) for NAT+NAT or Table 504 3(7b) for FAN+NAT 5 The vent connector sizing is in accordance with Table 504 3(3) 504.3.21 Connector maximum and minimum size. Vent connectors shall not be increased in size more than two sizes greater than the listed appliance categorized vent diameter, flue collar diameter or draft hood outlet diame- ter Vent connectors for draft hood -equipped appliances shall not be smaller than the draft hood outlet diameter Where a vent connector size(s) determined from the tables for a fan -assisted appliance(s) is smaller than the flue col- lar diameter, the use of the smaller size(s) shall be permit- redprovided that the installation complies with all of the following conditions 1 Vent connectors for fan -assisted appliance flue col- lars 12 inches (305mm) in diameter or smaller are not reduced by more than one table size [for exam- ple, 12 inches to 10 inches (305 mm to 254 mm) is a one -size reduction] and those larger than 12 inches (305 mm) in diameter are not reduced more than two table sizes [for example, 24 inches to 20 inches (610 mm to 508 mm) is a two -size reduction] 2 The fan -assisted appliance(s) is common vented with a draft -hood -equipped appliance(s) 3 The vent connector has a smooth interior wall 504.3.22 Component commingling. Combinations of pipe sizes and combinations of single -wall and double -wall metal pipe shall be allowed within any connector nm(s) or within the common vent, provided that all of the appropriate tables permit all of the desired sizes and types of pipe, as if they were used for the entire length of the subject connector or vent Where single -wall and Type B double -wall metal pipes are used for vent connectors within the same venting system, the common vent must be sized using Table 504 3(2) or 504 3(4), as appropriate 504.3.23 Draft hood conversion accessories. Draft hood conversion accessories for use with masonry chimneys venting listed Category I fan -assisted appliances shall be listed and installed in accordance with the manufacturer's instructions for such listed accessories 504.3.24 Multiple sizes permitted. Where a table permits more than one diameter of pipe to be used for a connector or vent, all the permitted sizes shall be permitted to be used 504.3.25 Table interpolation. Interpolation shall be per- mitted in calculating capacities for vent dimensions that fall between table entries 504.3.26 Extrapolation prohibited. Extrapolation beyond the table entries shall not be permitted 504.3.27 Engineering calculations. For vent heights less than 6 feet (1829 mm) and greater than shown in the tables, engineering methods shall be used to calculate vent capacities 504.3.28 Height entries. Where the actual height of a vent falls between entries in the height column of the applicable table in Tables 504 3(1) through 504 3(7b), either mterpo- lation shall be used or the lower appliance input rating shown in the table shall be used for FAN MAX and NAT MAX column values and the higher appliance input rating shall be used for the FAN MIN column values SECTION 505 (IFGC) DIRECT -VENT, INTEGRAL VENT, MECHANICAL VENT AND VENTILATION/EXHAUST HOOD VENTING 505.1 General. The installation of direct -vent and integral vent appliances shall be in accordance with Section 503 Mechanical venting systems and exhaust hood venting sys- tems shall be designed and installed in accordance with Sec- tion 503 505.1.1 Commercial cooking appliances vented by exhaust hoods. Where commercial cooking appliances are vented by means of the Type I or II kitchen exhaust hood system that serves such appliances, the exhaust sys- tem shall be fan powered and the appliances shall be inter- locked with the exhaust hood system to prevent appliance operation when the exhaust hood system is not operating The method of interlock between the exhaust hood system and the appliances equipped with standing pilot burner ignition systems shall not cause such pilots to be extin- guished Where a solenoid valve is installed in the gas pip- ing as part of an interlock system, gas piping shall not be 100 2018 INTERNATIONAL FUEL GAS CODE" Fff.,( 1 I CopyrightOo2.017 ICC ALL RIGHTS RESERVED A—LDd by H®Ih¢ Van DmA(Rvdme Oo,dA od om),(Dty of FRmdNmod)O[do,N=b6xlo08170S601JM 15. ZMO oc 51 AM (PET) Mt,mmt to k I firiTER 1, sAg,e^ '^Rt, ICC No otths TAodomoo. m AtOy goodomo- by any Ot Party o[ AAmboemd,Oo[vsd Mgle —ooly oTymg and Nyodwg TMIRISAd ANY VNAVTHO OLDER REPROD VCIION OR D ISIRIEVTION IS VIOLATION OP THE FEDERAL COPYRIGHT 11 AND THE LICENSE AGREEME NT. AND REJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER CHIMNEYS AND VENTS installed to bypass such valve Dampers shall not be installed in the exhaust system Exception: An interlock between the cooking appli- ance(s) and the exhaust hood system shall not be required where heat sensors or other approved methods automatically activate the exhaust hood system when cooking operations occur SECTION 506 (IFGC) FACTORY -BUILT CHIMNEYS 506.1 Building heating appliances Factory -built clumneys for building heating appliances producing flue gases having a temperature not greater than 1,000°F (538°(7), measured at the entrance to the chimney, shall be listed and labeled in accordance with UL 103 and shall be installed and terminated in accordance with the manufacturer's instructions 506.2 Support. Where factory -built chimneys are supported by structural members, such as joists and rafters, such mem- bers shall be designed to support the additional load 506.3 Medium -heat appliances Factory -built chimneys for medium -heat appliances producing flue gases having a tem- perature above 1,000°F (538°(7), measured at the entrance to the chimney, shall be listed and labeled in accordance with UL 959 and shall be installed and terminated in accordance with the manufacturer's instructions 2018 INTERNAT10NAL FUEL GAS CODE" 101 I I I I CoLFIEILOo2.017 ICC ALL RIGHTS RESERVED Awned by H®Ih¢ Van DmA(Rvdme Oo,dA od om),(Dty of FRmdNmod)O[do,N=b6xlo08170S601JM 15. ZMO oc 51 AM(PET)puArvant to ( LEA Affiee^® Rt, ICC No fwN¢[TAodomoo.m AtO,«odomo,o by any Ot Party o, AAmboemd,Oo[vsd Mglo¢ ody mpyncg and Nyodwg L,oIRb¢Ad ANY VNAVTHO RIVER REPLA VCTION OR DISIRIBITTO N IS A VIOLATION OF THE FEDERAL COPYRIGHT ACT AND THE LICENSE AGREEMENT. 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O U m m m m m rn m _ m N Q W a N Z ^2 z z z z z z z z z z z z z z z z U J ^L z z z z z z z z z z z z z zZ a N jz� ,-. rn ,-. v R m rnOza W GR GR v r GR z z a z '� ¢¢¢¢¢¢¢ z ',z ',z ',z ',z ',z ',z ',z',z ',z ',z ',z ',z ',z ',z ',z ',zLL C Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q^L z z z z z z z z z z z z z z z z ~ ZN N N T N SO N N Ni x N V N Ni N Ni r N Q 'z x Ni Ni Q 'z Q 'z Q 'z Z �$ z z z z z z z z z z z z z z z z z a C Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q LL ^L z z z z z z z z z z z z z z z z z J a a J F W 110 2018 INTERNATIONAL FUEL GAS CODE" C',gbt@2017 ICC ALL RIGHTS RESERVED Awsed by HDO,,Cm Cm,(Rvdme Oo,d—od om),(Qty of FRmdNmod)O[d6N=b6*100817— 01 JoK 15, f MO oc 51 AM(PET)ptUmmt to S I ( 1,,moo Ag—oKta L, ICC Nof-thsT,odomo,, m Muth, Pepeodomo-by any Ot Party, o[Axmboem a,Ooossd&ogl—,od,,o,,ygand Mwo,mg,,oIRbAd ANY VNAUTHORIVED RBP ROD UCI ION OR DISI RI B UTIO N IS A VIOLATION OF THE FEDERAL COPYRIGHT ACT AND THE LICENSE AGREEMENT, AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER CHIMNEYS AND VENTS ZO O N N 0 0 N N T i b .-r 'R b N I V T V T O Z a N N C x 0 0� x O R LL i N h O V h h m V v 0 0 O O E m,LIF "o "o O p d O X N O N LR N x¢ O z O V I T N v~i N Q z N Z Q fr ¢ z PA r SO Sp ¢ N f % SO V SO T .-r 1� V x O .-r T N SO V O x td d Z ^2 V V V V w V m m o 'c Z2 rn rn rn m z z •-• o fr z z z l' o 3 N LL t C_ T �O O x ¢ ¢ x ¢ ¢ ¢ x rL N N m z z N N m z z z C m F Z % as V M O M I N V V V I 0 I N o N xS,S p 6 6 6 6 6¢ 6 6 c z z 2 z z z x z z z z z LL SA ON N O 2 N1� z z z ~ z z z z z _ W c z f Q Z K m ^$ N O, T N 0 N 0 v N OE N N w fr O � .ti .ti o x N x N ¢ z N 0 d N x ¢ ¢ ¢ ¢ ¢ ¢ ¢ ¢ W n Z t F 2h z z z z z z z z z z z d Q a 2 z z z z z z z z z z z z fr fr fr .r fr .ti a Ip _ o a za z z z z z z z z z z z z � 0 a LL ¢ ¢ ¢ ¢ ¢ ¢ ¢ ¢ ¢ ¢ ¢ ¢ w 2 z z z z z z z z z z z z E q ¢ ¢ ¢ ¢ ¢ ¢ ¢ ¢ ¢ ¢ ¢ ¢ a N ^2 z z z z z z z z z z z z N � J a LL vJ C ¢ ¢ ¢ ¢ ¢ ¢ ¢ ¢ ¢ ¢ ¢ ¢ z z z z z z z z z z z z pia Z ^2 m w z z z z z z z J 0 x ¢ ¢ ¢ ¢ ¢ ¢ ¢ ¢ ¢ ¢ ¢ ¢ N V rn Z2 z z z z z z z z z z z z LL C ¢ ¢ ¢ ¢ ¢ ¢ ¢ ¢ ¢ ¢ ¢ ¢ z z z z z z z z z z z z z 2 z z z z z z z z z z z ¢ ¢ ¢ ¢ ¢ ¢ ¢ ¢ ¢ ¢ ¢ ¢ z a z z z z z z z z z z z z a LL C ¢ ¢ ¢ ¢ ¢ ¢ ¢ ¢ ¢ ¢ ¢ ¢ z z z z z z z z z z z z J a _ w _ � E c � d E Tr J E E c E U E¢ E c E f U E, W E� x A 2018 INTERNAT10NAL FUEL GAS CODE" 111 I " ' CITFIghtOo2.017 ICC ALL RIGHTS RESERVED A—LDd by H®Ih¢Van Cm,(Rvdme Oo,dwood om),(Qty of FRmdNmod)O[d6N=b6*1008170S601 JM 15. ZMO oc 51 AM(PET)pucrvant to ( I.—A,e^®,AOICC Nof th,,e,od,�,oamfw ,,e od,�,o¢tbyany ,dPartyo, d Mgl—yody,o,,,g and Mwodwgp,oIRbAd ANY VNAVTHORIVED REPRODUCTION OR DISIRIBITTO N IS A VIOLATION OF THE FEDERAL COPYRIGHT ACT AND THE LICENSE AGREEMENT. AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER CHIMNEYS AND VENTS TABLE 504.2(5) i Number of Appliances Single SINGLE -WALL METAL PIPE OR TYPE B ASBESTOS CEMENT VENT Appliance Type Draft hood equipped Appliance Vent Connection Connected directly to pipe or vent HEIGHT(H) (feet) LATERAL(L) (feet) VENT DIAMETER—(D) inches 3 4 5 1 6 1 7 1 8 10 12 MAXIMUM APPLIANCE INPUT RATING IN THOUSANDS OF BTUIH 0 39 70 116 170 232 312 500 750 6 2 31 55 94 141 194 260 415 620 5 28 51 88 128 177 242 390 600 0 42 76 126 185 252 340 542 815 8 2 32 61 102 154 210 284 451 680 5 29 56 95 141 194 264 430 648 10 24 49 86 131 180 250 406 625 0 45 84 138 202 279 372 606 912 2 35 67 111 168 233 311 505 760 10 5 32 61 104 153 215 289 480 724 10 27 54 94 143 200 274 455 700 15 NA 46 84 130 186 258 432 666 0 49 91 151 223 312 420 684 1,040 2 39 72 122 186 260 350 570 865 15 5 35 67 110 170 240 325 540 825 10 30 58 103 158 223 308 514 795 15 NA 50 93 144 207 291 488 760 20 NA NA 82 132 195 273 466 726 0 53 101 163 252 342 470 770 1,190 2 42 80 136 210 286 392 641 990 20 5 38 74 123 192 264 364 610 945 10 32 65 115 178 246 345 571 910 15 NA 55 104 163 228 326 550 870 20 NA NA 91 149 214 306 525 832 0 56 108 183 276 384 529 878 1,370 2 44 84 148 230 320 441 730 1,140 5 NA 78 137 210 296 410 694 1,080 30 10 NA 68 125 196 274 388 656 1,050 15 NA NA 113 177 258 366 625 1,000 20 NA NA 99 163 240 344 596 960 30 NA NA NA NA 192 295 540 890 0 NA 120 210 310 443 590 980 1,550 2 NA 95 171 260 370 492 820 1,290 5 NA NA 159 234 342 474 780 1,230 50 10 NA NA 146 221 318 456 730 1,190 15 NA NA NA 200 292 407 705 1,130 20 NA NA NA 185 276 384 670 1,080 30 NA NA NA NA 222 330 605 1,010 For SI 1 inch= 25 4 mm, 1 foot =304 8 mm, 1 British thermal unit per hour= 0 2931 W 112 2018 INTERNATIONAL FUEL GAS CODE" C',ght OO?.o17 ICC ALL RIGHTS RESERVED A,a—d by H®Ih¢ Van Cm,(Rv dme Oo,d—od om),(Qty of FRmdNmod)O[do, Nomb,,*100817— 01 jm 15. f MO oc 51 AM(GET)p,,mmt to S I ( H®s[Ag,,m,m,AOICC No( th,, ,od,S,o,,,o u ,,, od,S,00zbyany ,dputyo, Axmboemamhow.d ANYVNAVTHORIVED RBPRODVCIION ORDISI RIBV LION LEA VIOLATION OF THE FEDERAL COPYRIGHT ACT AND THE LICENSEAGREEMENT.AND SUBJECT TO CIVIL AND CRIMINAL PENALTIESTHERBVNDER CHIMNEYS AND VENTS TABLE 504.2(6) Number of Appliances Single EXTERIOR MASONRY CHIMNEY Appliance Type NAT Appliance Vent Connection Type B double -wall connector MINIMUM ALLOWABLE INPUT RATING OF SPACE -HEATING APPLIANCE IN THOUSANDS OF BTU PER HOUR Internal area of chimney (square inches) VENT HEIGHT (feet) 12 19 28 1 38 1 50 1 63 78 113 37°F or Greater Local 99 % Winter Design Temperature: 37°F or Greater 6 0 0 0 0 0 0 0 0 8 0 0 0 0 0 0 0 0 10 0 0 0 0 0 0 0 0 15 NA 0 0 0 0 0 0 0 20 NA NA 123 190 249 184 0 0 30 NA NA NA NA NA 393 334 0 50 NA NA NA NA NA NA NA 579 27 to 36°F Local 99 % Winter Design Temperature: 27 to 36°F 6 0 0 68 116 156 180 212 266 8 0 0 82 127 167 187 214 263 10 0 51 97 141 183 201 225 265 15 NA NA NA NA 233 253 274 305 20 NA NA NA NA NA 307 330 362 30 NA NA NA NA NA 419 445 485 50 NA NA NA NA NA NA NA 763 17 to 26°F Local 99 % Winter Design Temperature: 17 to 26°F 6 NA NA NA NA NA 215 259 349 8 NA NA NA NA 197 226 264 352 10 NA NA NA NA 214 245 278 358 15 NA NA NA NA NA 296 331 398 20 NA NA NA NA NA 352 387 457 30 NA NA NA NA NA NA 507 581 50 NA NA NA NA NA NA NA NA 5 to 16°F Local 99% Winter Design Temperature: 5 to 16°F 6 NA NA NA NA NA NA NA 416 8 NA NA NA NA NA NA 312 423 10 NA NA NA NA NA 289 331 430 15 NA NA NA NA NA NA 393 485 20 NA NA NA NA NA NA 450 547 30 NA NA NA NA NA NA NA 682 50 NA NA NA NA NA NA NA 972 -10 to VF Local 99 % Winter Design Temperature: -10 to VF 6 NA NA NA NA NA NA NA 484 8 NA NA NA NA NA NA NA 494 10 NA NA NA NA NA NA NA 513 15 NA NA NA NA NA NA NA 586 20 NA NA NA NA NA NA NA 650 30 NA NA NA NA NA NA NA 805 50 NA NA NA NA NA NA NA 1,003 -11°F or Lower Local 99 % Winter Design Temperature: -11°F or Lower Not recommended for any vent configurations ForSIoC=(oF-32F18,1inch =254mm,1foot =3048mm, 1 British thermal unit per hour =02931W Note: See Figure B-19 in Appendix B for a map showing local 99-percent winter design temperatures in the United States 2018 INTERNATIONAL FUEL GAS CODE" 113 I " ' CITFIght @ 2017 ICC ALL RIGHTS RESERVED Awned by H®Ih¢ Van Dme(Rv O,,e pooch od om),(Qty of FRmdNmod)O[do, Nomb,,*1008170S601 JM 15. ZMO oc 51 AM (PET) mt to ( Lie Affiee^®t'^^I, ICC No otths,Aodomo,,mALM,, Pepeodomo- by any Ot Party o, Axmboemdmho[vsd Mglo—o,FA-,and ,yodwgp,oIRbAd ANY UNAUTHO RIVER REPRODUCTION OR DISTRIBUTION IS VIOLATION OF THE FEDERAL COPYRIGHT ACT AND THE LICENSE AGREEMENT. AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER CHIMNEYS AND VENTS TABLE 504.3(1) Number of Appliances Two or more TYPE B DOUBLE -WALL VENT Appliance Type Category I Appliance Vent Connection Type B double -wall connector VENT CONNECTOR CAPACITY TYPE B DOUBLE -WALL VENTAND CONNECTOR DIAMETER—(D) inches 3 4 5 1 6 1 7 1 8 9 10 VENT CONNECTOR APPLIANCE INPUT RATING LIMITS IN THOUSANDS OF BTU/H HEIGHT (H) RISE (R) FAN NAT FAN NAT FAN NAT FAN NAT FAN NAT FAN NAT FAN NAT FAN NAT (fee[) (fee[) Min Max Max Min Max Max Min Max Max Min Max Max Min Max Max Min Max Max in Max Max Min Max Max 1 22 37 26 35 66 46 46 106 72 58 164 104 ]] 225 142 92 296 185 109 376 237 128 466 289 6 2 23 41 31 37 75 55 48 121 86 60 183 124 79 253 168 95 333 220 112 424 282 131 526 345 3 24 44 35 38 81 62 49 132 96 62 199 139 82 275 189 97 363 248 114 463 317 134 575 386 1 22 40 27 35 72 48 49 114 76 64 176 109 84 243 148 100 320 194 118 408 248 138 507 303 8 2 23 44 32 36 80 57 51 128 90 66 195 129 86 269 175 103 356 230 121 454 294 141 564 358 3 24 47 36 37 87 64 53 139 101 67 210 145 88 290 198 105 384 258 123 492 330 143 612 402 1 22 43 28 34 78 50 49 123 78 65 189 113 89 257 154 106 341 200 125 436 257 146 542 314 10 2 23 47 33 36 86 59 51 136 93 67 206 134 91 282 182 109 374 238 128 479 305 149 596 372 3 24 50 37 37 92 67 52 146 104 69 220 150 94 303 205 111 402 268 131 515 342 152 642 417 1 21 50 30 33 89 53 47 142 83 64 220 120 88 298 163 110 389 214 134 493 273 162 609 333 15 2 22 53 35 35 96 63 49 153 99 66 235 142 91 320 193 112 419 253 137 532 323 165 658 394 3 24 55 40 36 102 71 51 163 111 68 248 160 93 339 218 115 445 286 140 565 365 167 700 444 1 21 54 31 33 99 56 46 157 87 62 246 125 86 334 171 107 436 224 131 552 285 158 681 347 20 2 22 57 37 34 105 66 48 167 104 64 259 149 89 354 202 110 463 265 134 587 339 161 725 414 3 23 60 42 35 110 74 50 176 116 66 271 168 91 371 228 113 486 300 137 618 383 164 764 466 1 20 62 33 31 113 59 45 181 93 60 288 134 83 391 182 103 512 238 125 649 305 151 802 372 30 2 21 64 39 33 118 70 47 190 110 62 299 158 85 408 215 105 535 282 129 679 360 155 840 439 3 22 66 44 34 123 79 48 198 124 64 309 178 88 423 242 108 555 317 132 706 405 158 874 494 1 19 71 36 30 133 64 43 216 101 57 349 145 78 477 197 97 627 257 120 797 330 144 984 403 50 2 21 73 43 32 137 76 45 223 119 59 358 172 81 490 234 100 645 306 123 820 392 148 1,014 478 3 22 75 48 33 141 86 46 229 134 61 366 194 83 502 263 103 661 343 126 842 441 151 1,043 538 1 18 82 37 28 158 66 40 262 104 53 442 150 73 611 204 91 810 266 112 1,038 341 135 1,285 417 100 2 19 83 44 30 161 ]9 42 267 123 55 457 101 75 619 242 94 122 316 115 1,054 405 139 1,306 494 3 20 84 50 31 163 89 44 2]2 138 57 452 109 78 627 272 97 834 355 1 118 1,069 455 1 142 1,327 555 COMMON VENT CAPACITY 4 5 6 7 8 9 10 VENT HEIGHT COMBINED APPLIANCE INPUT RATING IN THOUSANDS OF BTUIH (H) (feet) FAN +FAN FAN +NAT NAT +NAT FAN +FAN FAN +NAT NAT +NAT FAN +FAN FAN +NAT NAT +NAT FAN +FAN FAN +NAT NAT +NAT FAN +FAN FAN +NAT NAT +NAT N T NAT +NAT FAN +FAN FAN +NAT NAT +NAT 6 92 81 65 140 116 103 204 161 147 309 248 200 404 314 260 335 672 520 410 8 101 90 73 155 129 114 224 178 163 339 275 223 444 348 290 378 740 577 465 10 110 97 79 169 141 124 243 194 178 367 299 242 477 377 315 $434 405 800 627 495 15 125 112 91 195 164 144 283 228 206 427 352 280 556 444 365 465 924 733 565 20 136 123 102 215 183 160 314 255 229 475 394 310 621 499 405 523 1,035 826 640 30 152 138 118 244 210 185 361 297 266 547 459 360 720 585 470 8 605 1,209 975 740 50 167 153 134 279 244 214 421 353 310 641 547 423 854 706 550 705 1,451 1,188 860 100 175 163 NA 311 277 NA 489 421 NA 751 658 479 1,025 873 625 1,408 1,215 800 1,784 1,502 975 (continued) 114 2018 INTERNATIONAL FUEL GAS CODE" rff.,"FrT' CopynghtOo2.017 ICC ALL RIGHTS RESERVED A—LDd by H®Ih¢ Van DmA(Rv O,,eOo,dA od om),(Qty of FRmdNmod)O[do,N=b,,*1008170S601 JM 15. ZMO 0651 AM (PET) mt to k MR, ff., RR 1,i AgffiAvomtaW, ICC No otths[Apmdomo,,oALM,, gAodomo,, by any Ot Party o,AAmboem a,OoAvsd Mglo— odyWpyaog and,yodwg GMIRISAd ANY VNAVTHO OLDER REPROD V,MN OR DISIRIEVTION IS VIOLATION OP THE FEDERAL COPYRIGHT 11 AND THE LICENSE AGRE EM ENT. AND REJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER CHIMNEYS AND VENTS TABLE 504.3(1)-continued Number of Appliances Two or more TYPE B DOUBLE -WALL VENT Appliance Type Category I Appliance Vent Connection Type B double -wall connector VENT CONNECTOR CAPACITY TYPE B DOUBLE -WALL VENTAND DIAMETER-(D) inches 12 14 1 16 1 18 1 20 1 22 24 VENT CONNECTOR APPLIANCE INPUT RATING LIMITS IN THOUSANDS OF BTUIH HEIGHT ( RISE (R) FAN NAT FAN NAT FAN NAT FAN NAT FAN NAT FAN NAT FAN NAT (feet) [) (fee[) Min Max Max Min Max Max Min Max Max Min Max Max Min Max Max Min Max Max Min Max Max 2 174 764 496 223 1,046 653 281 1J71 853 346 1,772 1,080 NA NA NA NA NA NA NA NA NA 6 4 180 897 616 230 1,231 827 287 1,617 1,081 352 2,069 1,370 NA NA NA NA NA NA NA NA NA 6 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA 2 186 822 516 238 1,126 696 298 1,478 910 365 1,920 1,150 NA NA NA NA NA NA NA NA NA 8 4 192 952 644 244 1,307 884 305 1,719 1,150 372 2,211 1,460 471 2,737 1,800 560 3,319 2,180 662 3,957 2,590 6 198 1,050 772 252 1,445 1,0721 313 1902 1,390 380 2,434 1,770 478 3,018 12,180 1 568 3,665 2,640 669 4,373 3,130 2 196 870 536 249 1,195 730 311 1j70 955 379 2,049 1,205 NA NA NA NA NA NA NA NA NA 10 4 201 997 664 256 1,371 924 318 1,804 1;205 387 2,332 1,535 486 2,887 1,890 581 3,502 2,280 686 4,175 2,710 6 207 1,095 792 263 1,509 1,118 325 1989 1,455 395 2,556 1,865 494 3,169 2,290 589 3,849 2,760 694 4,593 3,270 2 214 967 568 272 1,334 790 336 1,760 1,030 408 2,317 1,305 NA NA NA NA NA NA NA NA NA 15 4 221 1,085 712 279 1,499 1,006 344 1978 1,320 416 2,579 1,665 523 3,197 2,060 624 3,881 2,490 734 4,631 2,960 6 228 1,181 856 286 1,632 1,222 351 2,157 1,610 424 2,796 2,025 533 3,470 2,510 634 4,216 3,030 1 743 5,035 3,600 2 223 1,051 596 291 1,443 840 357 1,911 1,095 430 2,533 1,385 NA NA NA NA NA NA NA NA NA 20 4 230 1,162 748 298 1,597 1,064 365 2,116 1,395 438 2,778 1,765 554 3,447 2,180 661 4,190 2,630 772 5,005 3,130 6 237 1,253 900 307 1,726 1,288 373 2;1.87 1,695 450 2,984 2,145 567 3,708 2,650 671 4,511 3,190 785 5,392 3,790 2 216 1,217 632 286 1,664 910 367 2,183 1,190 461 2,891 1,540 NA NA NA NA NA NA NA NA NA 30 4 223 1,316 792 294 1,802 1,160 376 2,366 1,510 474 3,110 1,920 619 3,840 2,365 728 4,861 2,860 847 5,606 3,410 6 231 1,400 952 303 1,920 1,410 384 2,524 1,830 485 3,299 2,340 632 4,080 2,875 741 4,976 3,480 860 5,961 4,150 2 206 1,479 689 273 2,023 1,007 350 2,659 1,315 435 3,548 1,665 NA NA NA NA NA NA NA NA NA 50 4 213 1,561 860 281 12,139 1 1,291 359 2,814 1,685 447 3,730 2,135 580 4,601 2,633 709 5,569 3,185 851 6,633 3,790 6 221 1,631 1,031 290 2,242 1,575 369 2951 2,055 461 3,893 2,605 594 4,808 3,208 724 5,826 13,885 1 867 16,943 4,620 2 192 1,923 712 254 2,644 1,050 326 3,490 1,370 402 4,707 1,740 NA NA NA NA NA NA NA NA NA 100 4 200 1,984 888 263 2,731 1,346 336 3,606 1,760 414 4,842 2,220 523 5,982 2,750 639 7,254 3,330 769 8,650 3,950 6 208 2,035 1,064 272 2,811 1,642 346 3,714 2,150 426 4,968 2,700 539 6,143 3,350 654 7,453 4,070 1 786 8,892 4,810 COMMON VENT CAPACITY TYPE B DOUBLE -WALL COMMON VENT DIAMETER-(D) inches 12 14 16 18 20 22 24 VENT HEIGHT COMBINED APPLIANCE INPUT RATING IN THOUSANDS OF BTUIH (H) (feet) FAN +FAN FAN +NAT NAT +NAT FAN +FAN FAN +NAT NAT +NAT FAN +FAN FAN +NAT NAT +NAT FAN +FAN FAN +NAT NAT +NAT FAN +FAN FAN +NAT NAT +NAT FAN +FAN FAN +NAT NAT +NAT FAN +FAN FAN +NAT NAT +NAT 6 900 696 588 1284 990 815 1,735 1,336 1,065 2,253 1,732 1,345 2,180 1,660 3,488 2,677 ly]0 4,206 3,226 2,390 8 994 773 652 1,423 1,103 912 1,927 1,491 1,190 2,507 1,936 1,510 2,439 1,860 3,890 2,998 2,200 4,695 3,616 2,680 10 1,076 841 712 1,542 1,200 995 2,093 1,625 1,300 2,727 2,113 1645 2,665 2,030 4,241 3,278 2,400 5,123 3,957 2920 15 1;247 986 825 1,794 1,410 1,158 2,440 1910 1,510 3,184 2,484 1,910 d4,54 3,133 2,360 4,971 3,862 2,790 6,016 4,670 3,400 20 1,405 1,116 916 2,006 1,588 1,290 2,722 2,147 1,690 3,561 2,798 2,140 3,552 2,640 5,573 4,352 3,120 6,749 5,261 3,800 30 1,6581,327 1,025 2,373 1,892 1,525 3220 2,558 1,990 4,197 3,326 2,520 4,193 3,110 6,539 5,15] 3,680 7,940 6,247 4,480 50 2,024 1,640 1,280 2911 2,34] 1,863 3964 3,183 2,430 5,184 4,149 3,075 5,240 3,800 8,116 6,458 4,500 9,83] 7,813 5,475 100 2,569 2,131 1,670 3,732 3,076 2,450 5,125 4,202 3,200 6,749 5,509 4,050 8,597 6,986 5,000 10,681 8,648 5,920 13,004 10,499 1 7;200 For SI 1 inch = 25 4 mm, 1 foot =304 8 mm, 1 British thermal unit per hour= 0 2931 W 2018 INTERNATIONAL FUEL GAS CODE" 115 I " ' CITFIght @ 2017 ICC ALL RIGHTS RESERVED Awned by H®Ih¢ Van Dme(Rv O,,e pooch od om),(Qty of FRmdNmod)O[do, Nomb,,*10081vwS6 01JM 15. ZMO 0651 AM (PET) mt to ( Lie Ag,, ^® '^^I, ICC No fwN¢ [,Aodomoo. m ALM,, gAodomo,, by any Ot Party o, Axmboemdmho[vsd M glo- ody mpyncg and ,yodwgp,oIRbAd ANY VNAVTHO RIVER REPRODUCTION OR DISIRIBVTIO N IS A VIOLATION OF THE FEDERAL COPYRIGHT ACT AND THE LICENSE AGREEMENT. AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER CHIMNEYS AND VENTS TABLE 504.3(2) Number of Appliances Two or more TYPE B DOUBLE -WALL VENT Appliance Type Category I Appliance Vent Connection Single -wall metal connector VENT CONNECTOR CAPACITY SINGLE -WALL METAL VENT CONNECTOR DIAMETER—(D) inches 3 4 5 1 6 1 7 1 8 1 9 10 VENT CONNECTOR APPLIANCE INPUT RATING LIMITS IN THOUSANDS OF BTUIH HEIGHT (H) RISE (R) FAN INATI FAN NAT FAN NAT FAN NAT FAN NAT FAN NAT FAN NAT FAN NAT (fee[) (fee[) Min Max I Max I Min Max Max Min Max Max Min Max Max Min Max Max Min Max Max Min Max Max Min Max Max 1 NA NA 26 NA NA 46 NA NA 71 NA NA 102 207 223 140 262 293 183 325 373 234 447 463 286 6 2 NA NA 31 NA NA 55 NA NA 85 168 182 123 215 251 167 271 331 219 334 422 281 458 524 344 3 NA NA 34 NA NA 62 121 131 95 175 198 138 222 273 188 279 361 247 344 462 316 468 574 385 1 NA NA 27 NA NA 48 NA NA 75 NA NA 106 226 240 145 285 316 191 352 403 244 481 502 299 8 2 NA NA 32 NA NA 57 125 126 89 184 193 127 234 266 173 293 353 228 360 450 292 492 560 355 3 NA NA 35 NA NA 64 130 138 100 191 208 144 241 287 197 302 381 256 370 489 328 501 609 400 1 NA NA 28 NA NAI 50 11191 121 1 77 1821 1861 110 12401253 150 302 335 1 196 13721 429 252 506 534 308 10 2 NA I NA 33 84 85 59 124 134 91 189 203 132 248 278 183 311 369 235 381 473 302 517 589 368 3 NA NA 36 89 91 67 129 144 102 197 217 148 257 299 203 320 398 265 391 511 339 528 637 413 1 NA NA 29 79 87 52 116 138 81 177 214 116 238 291 158 312 380 208 397 482 266 556 596 324 15 2 NA NA 34 83 94 62 121 150 97 185 230 138 246 314 189 321 411 248 407 522 317 568 646 387 3 NA NA 39 87 100 70 127 160 109 193 243 157 255 333 215 331 438 281 418 557 360 579 690 437 1 49 56 30 78 97 54 115 152 84 175 238 120 233 325 165 306 425 217 390 538 276 546 664 336 20 2 52 59 36 82 103 64 120 163 101 1 182 252 144 243 346 197 317 453 259 400 574 1 331 1558 709 1 403 3 55 62 40 87 107 72 125 172 113 190 264 164 252 363 223 326 476 294 412 607 375 570 750 457 1 47 1 60 1 31 77 110 57 112 175 89 169 278 129 226 380 175 296 497 230 378 630 294 528 779 358 30 2 51 62 37 81 115 67 117 185 106 177 290 152 236 397 208 307 521 274 389 662 349 541 819 425 3 54 64 42 85 119 76 122 193 120 185 300 172 244 412 235 316 542 309 400 690 394 555 855 482 1 46 69 34 75 128 60 109 207 96 1621 336 1 137 12171460 188 12841 604 245 364 768 314 507 951 384 50 2 49 71 40 79 132 72 114 215 113 170 345 164 226 473 223 12941 623 293 376 793 375 520 983 458 3 52 72 45 83 136 82 119 221 123 178 353 186 235 486 331 387 816 423 535 1,013 518 1 45 79 34 71 150 61 104 249 98 153 424 140 205 585 249 345 993 321 476 1,236 393100 2 48 80 41 75 153 73 110 255 115 160 428 167 212 593 V3O4 299 358 1011 383 490 1,259 4693 51 81 46 79 157 85 114 260 129 168 433 190 222 603 339 368 1,027 431 506 1,280 527 COMMON VENT CAPACITY TYPE B DOUBLE -WALL COMMON VENT DIAMETER—(D) inches 4 5 6 7 8 9 10 VENT HEIGHT COMBINED APPLIANCE INPUT RATING IN THOUSANDS OF BTUIH (H) (feet) FAN +FAN FAN +NAT NAT +NAT FAN +FAN FAN +NAT NAT +NAT FAN +FAN FAN +NAT NAT +NAT FAN +FAN FAN +NAT NAT +NAT FAN +FAN FAN +NAT NAT +NAT FAN +FAN FAN +NAT NAT +NAT FAN +FAN FAN +NAT NAT +NAT 6 NA 78 64 NA 113 99 200 158 144 304 244 196 398 310 257 541 429 332 665 515 407 8 NA 87 71 NA 126 111 218 173 159 331 269 218 436 342 285 592 473 373 730 569 460 10 NA 94 76 163 137 120 237 189 174 357 292 236 467 369 309 638 512 398 787 617 487 15 121 108 88 189 159 140 275 221 200 416 343 274 544 434 357 738 599 456 905 718 553 20 131 118 98 208 177 156 305 247 223 463 383 302 606 487 395 824 673 512 1,013!184559 08 626 30 145 132 113 236 202 180 350 286 257 533 446 349 703 570 459 958 790 593 1,18352 723 50 159 145 128 268 233 208 406 337 296 622 529 410 833 686 535 1,139 954 689 1,418 17 838 100 166 153 NA 297 263 NA 469 398 NA 726 633 464 999 846 606 1,378 1,185 780 1,741 948 For SI 1 inch =25 4mm, 1 foot =304 8 mm, 1 British thermal unitper hour =0 2931 W 116 2018 INTERNATIONAL FUEL GAS CODE" "FrT' CopyaghtOo2.017 ICC ALL RIGHTS RESERVED A—LDd by H®Ih¢ Van DmA(Rv O,,pfnmdA od om),(Qty of FRmdNmod)O[do, Nomb,,*1008170S601 JM 15. ZMO 0651 AM (PET) mt to rk ff.,I ff., RR 1, Ag,'^^I, ICC No o tths ,Aodomo,, o ALM,, Aodomo,, by any Ot Party o[AAmboemdmho[vsd Mgle—ody mpyncg and,yodwg GMIRISAd ANY VNAVTHO OLDER REPROD V,Mo OR D ISIRIEUTION IS VIOLATION OP THE FEDERAL COPYRIGHT 11 AND THE LICENSE AGRE EM ENT. AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER CHIMNEYS AND VENTS TABLE 504.3(3) Number of Appliances Two or more MASONRY CHIMNEY Appliance Type Category I Appliance Vent Connection Type B double -wall connector VENT CONNECTOR CAPACITY TYPE B DOUBLE -WALL VENT CONNECTOR DIAMETER-(D) inches 3 4 5 6 7 8 9 10 VENT CONNECTOR APPLIANCE INPUT RATING LIMITS IN THOUSANDS OF BTUIH HEIGHT (H) RISE (R) FAN NAT FAN NAT FAN NAT FAN NAT FAN NAT FAN NAT FAN NAT FAN NAT (feet) (feet) Min Max Max Min Max Max Min Max Max Min Max Max Min Max Max Min Max Max Min Max Max Min Max Max 1 24 33 21 39 62 40 52 106 67 65 194 101 87 274 141 104 370 201 124 479 253 145 599 319 6 2 26 43 28 41 79 52 53 133 85 67 230 124 89 324 173 107 436 232 127 562 300 148 694 378 3 27 49 34 42 92 61 55 155 97 69 262 143 91 369 203 109 491 270 129 633 349 151 795 439 1 24 39 22 39 72 41 55 117 69 71 213 105 94 304 148 113 414 210 134 539 267 156 682 335 8 2 26 47 29 40 87 53 57 140 86 73 246 127 97 350 179 116 473 240 137 615 311 160 776 394 3 27 52 34 42 97 62 59 159 98 75 269 145 99 383 206 119 517 276 139 672 358 163 848 452 1 24 42 22 38 80 42 55 130 71 74 232 108 101 324 153 120 444 216 142 582 277 165 739 348 10 2 26 50 29 40 93 54 57 153 87 76 261 129 103 366 184 123 498 247 145 652 321 168 825 407 3 27 55 35 41 105 63 58 170 100 78 284 148 106 397 209 126 540 281 147 705 366 171 893 463 1 24 48 23 38 93 44 54 154 74 72 277 114 100 384 164 125 511 229 153 658 297 184 824 375 15 2 25 55 31 39 105 55 56 174 89 74 299 134 103 419 192 128 558 260 156 718 339 187 900 432 3 26 59 35 41 115 64 57 189 102 76 319 153 105 448 215 131 597 292 159 760 382 190 960 486 1 24 52 24 37 102 46 53 172 77 71 313 119 98 437 173 123 584 239 150 752 312 180 943 397 20 2 25 58 31 39 114 56 55 190 91 73 335 138 101 467 199 126 625 270 153 805 354 184 1,011 452 3 26 63 35 40 123 65 57 204 104 75 353 157 104 493 222 129 661 301 156 851 396 187 1,067 505 1 24 54 25 37 111 48 52 192 82 69 357 127 96 504 187 119 680 255 145 883 337 175 1,115 432 30 2 25 60 32 38 122 58 54 208 95 72 376 145 99 531 209 122 715 287 149 928 378 179 1,171 484 3 26 64 36 40 131 66 56 221 107 74 392 163 101 554 233 125 746 317 152 968 418 182 1,220 535 1 23 51 25 36 116 51 51 209 89 67 405 143 92 582 213 115 798 294 140 1,049 392 168 1,334 506 50 2 24 59 32 37 127 61 53 225 102 70 421 161 95 604 235 118 827 326 143 1,085 433 172 1,379 558 3 26 64 36 39 135 69 55 23] 115 72 435 80 98 624 260 121 854 357 147 1,118 474 176 1,421 611 1 23 46 24 35 108 50 49 208 92 65 428 155 88 640 237 109 907 334 134 1,222 454 161 1,589 596 100 2 24 53 31 37 120 60 51 224 105 67 444 174 92 660 260 113 933 368 138 1,253 497 165 1,626 651 3 25 59 35 38 130 68 53 237 118 69 458 193 94 679 285 116 956 399 141 1,282 540 169 1,661 705 COMMON VENT CAPACITY MINIMUM INTERNAL AREA OF MASONRY CHIMNEY FLUE (square inches) 12 19 28 38 50 63 78 113 VENT HEIGHT COMBINED APPLIANCE INPUT RATING IN THOUSANDS OF BTUIH (H) (fee[) FAN +FAN+NAT+NAT+FAN+NAT+NAT+FAN+NAT+NAT+FAN+NAT+NA FAN NAT FAN FAN NAT FAN FAN NAT FAN FAN NAT FAN +FAN+NAT+NAT+FAN+NAT+NAT+FAN+NAT+NAT+FAN+NAT+NA FAN NAT FAN FAN NAT FAN FAN NAT FAN FAN NAT 6 NA 74 25 NA 119 46 NA 178 71 NA 257 103 NA 351 143 NA 458 188 NA 582 246 1,041 853 NA 8 NA 80 28 NA 130 53 NA 193 82 NA 279 119 NA 384 163 NA 501 218 724 636 278 1,144 937 408 10 NA 84 31 NA 138 56 NA 207 90 NA 299 131 NA 409 177 606 538 236 776 686 302 1,226 1,010 454 15 NA NA 36 NA 152 67 NA 233 106 NA 334 152 523 467 212 682 611 283 874 781 365 1,374 1,156 546 20 NA NA 41 NA NA 75 NA 250 122 NA 368 172 565 508 243 742 668 325 955 858 419 1,513 1,286 648 30 NA NA NA NA NA NA NA 2]0 137 NA 404 198 615 564 2]8 816 ]4] 381 1,062 969 496 1,702 1,473 749 50 NA NA NA NA NA NA NA NA NA NA NA NA NA 620 328 879 831 461 1,165 1,089 606 1,905 1,692 922 100 NA NA NA NA NA NA NA NA NA NA NA NA NA NA 348 NA NA 499 1 NA I NA 1 669 2,053 1,921 1,058 For SI 1 inch= 25 4 Firm, 1 square inch = 645 16 min', 1 foot =304 8 mm, 1 British thermal unit per hour= 0 2931 W 2018 INTERNATIONAL FUEL GAS CODE" 117 I " ' CITFIght @ 2017 ICC ALL RIGHTS RESERVED Awned by H®Ih¢ Van Dme(Rv O,,e pooch od om),(Qty of FRmdNmod)O[do, Nomb,,*10081vwS6 01JM 15, ZMO 0651 AM (PET) mt to ( LieAg,, ^® '^^I, ICC No fwN¢ [,Aodomo,, m ALM,, [,,Aodomo,, by any Ot Party o, Axmboem dmho[vsd M glo- ody mpyncg and ,yodwgp,oIRbAd ANY VNAVTHO RIVER REPRODUCTION OR DISIRIBVTIO N IS A VIOLATION OF THE FEDERAL COPYRIGHT ACT AND THE LICENSE AGREEMENT. AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER CHIMNEYS AND VENTS TABLE 504.3(4) Number of Appliances Two or more MASONRY CHIMNEY Appliance Type Category I Appliance Vent Connection Single -wall metal connector VENT CONNECTOR CAPACITY SINGLE -WALL METAL VENT CONNECTOR DIAMETER-(D) inches 3 4 5 1 6 1 7 1 8 9 10 VENT CONNECTOR APPLIANCE INPUT RATING LIMITS IN THOUSANDS OF BTUIH HEIGHT (H) RISE (R) FAN INATI FAN NAT FAN NAT FAN NAT FAN NAT FAN NAT FAN NAT FAN NAT (fee[) (fee[) Min Max I Max I Min Max Max Min Max Max Min Max Max Min Max Max Min Max Max Min Max Max Min Max Max 1 NA NA 21 NA NA 39 NA NA 66 179 191 100 231 271 140 292 366 200 362 474 252 499 594 316 6 2 NA NA 28 NA NA 52 NA NA 84 186 227 123 239 321 172 301 432 231 373 557 299 509 696 376 3 NA NA 34 NA NA 61 134 153 97 193 258 142 247 365 202 309 491 269 381 634 348 519 793 437 1 NA NA 21 NA NA 40 NA NA 68 195 208 103 250 298 146 313 407 207 387 530 263 529 672 331 8 2 NA NA 28 NA NA 52 137 139 85 202 240 125 258 343 177 323 465 238 397 607 309 540 766 391 3 NA NA 34 NA NA 62 143 156 98 210 264 145 266 376 205 332 509 274 407 663 356 551 838 450 1 NA NA 22 NA NA 41 130 151 70 202 225 106 267 316 151 333 434 213 410 571 273 558 727 343 10 2 NA NA 29 NA NA 53 136 150 86 210 255 128 276 358 181 343 489 244 420 640 317 569 813 403 3 NA NA 34 97 102 62 143 166 99 217 277 147 284 389 207 352 530 279 430 694 363 580 880 459 1 NA NA 23 NA NA 43 129 151 73 199 271 112 268 376 161 349 502 225 445 646 291 623 808 366 15 2 NA NA 30 92 103 54 135 170 88 207 295 132 277 411 189 359 548 256 456 706 334 634 884 424 3 NA NA 34 96 112 63 141 185 101 215 315 151 286 439 213 368 586 289 466 755 378 646 945 479 1 NA NA 23 87 99 45 128 167 76 197 303 117 265 425 169 345 569 235 439 734 306 614 921 347 20 2 NA NA 30 91 111 55 134 185 90 205 325 136 274 455 195 355 610 266 450 ]8] 348 627 986 443 3 NA NA 35 96 119 64 140 199 103 213 343 154 282 481 219 365 644 298 461 831 391 639 1,042 496 1 NA NA 24 86 108 47 126 187 80 193 347 124 259 492 183 338 665 250 430 864 330 600 1,089 421 30 2 NA NA 31 91 119 57 132 203 93 201 366 142 269 518 205 348 699 282 442 908 372 613 1,145 473 3 NA NA 35 95 127 65 138 216 105 209 381 160 277 540 229 358 729 312 452 946 412 626 1,193 524 1 NA NA 24 85 113 50 124 204 87 188 392 139 252 567 208 328 778 287 417 1,022 383 582 1,302 492 50 2 NA NA 31 89 123 60 130 218 100 196 408 158 262 588 230 339 806 320 429 1,058 425 596 1,346 545 3 NA NA 35 94 131 68 136 231 112 205 422 176 271 607 255 349 831 351 440 1,090 466 610 1,386 597 1 NA NA 23 84 104 49 122 200 89 182 410 151 243 61] 232 315 8I5 328 402 1,111 4" 570 37 580 100 2 NA NA 30 88 115 59 127 215 102 190 425 169 253 636 254 326 899 361 415 1,210 488 5]5 1 lj]0 634 3 NA NA 34 93 124 6] 133 228 115 199 438 188 262 654 279 337 921 392 427 1,238 529 589 1,604 687 COMMON VENT CAPACITY MINIMUM INTERNAL AREA OF MASONRY CHIMNEY FLUE (square inches) 12 19 28 38 50 63 78 113 VENT HEIGHT COMBINED APPLIANCE INPUT RATING IN THOUSANDS OF BTUIH (H) (feet) FAN +FAN+NAT+NA FAN NAT FAN +FAN+NAT+NAT+FAN+NA FAN NAT FAN FAN NAT +NAT+FAN+NAT+NAT+FAN+NAT+NAT+FAN+NA FAN FAN NAT FAN FAN NAT FAN FAN NAT +NAT+FAN+NAT+NAT+FAN+NAT+NAT FAN FAN NAT FAN FAN NAT 6 NA NA 25 NA 118 45 NA 176 71 NA 255 102 NA 348 142 NA 455 187 NA 579 245 NA 846 NA 8 NA NA 28 NA 128 52 NA 190 81 NA 276 118 NA 380 162 NA 497 217 NA 633 277 1,136 928 405 10 NA NA 31 NA 136 56 NA 205 89 NA 295 129 NA 405 175 NA 532 234 171 680 300 1216 1,000 450 15 NA NA 36 NA NA 66 NA 230 105 NA 335 150 NA 400 210 677 602 280 866 772 360 1,359 1,139 540 20 NA NA NA NA NA 74 NA 247 120 NA 362 170 NA 503 240 765 661 321 947 849 415 1,495 1,264 640 30 NA NA NA NA NA NA NA NA 135 NA 398 195 NA 558 275 808 739 3]] 1,052 957 490 1,682 1,447 740 50 NA NA NA NA NA NA NA NA NA NA NA NA NA 612 325 NA 821 456 1,152 1,076 600 1,879 1,672 910 100 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA 494 NA NA 663 2,006 1,885 1,046 For SI 1 inch = 25 4 min, 1 square inch = 645 16 mint, 1 foot= 304 8 min, 1 British thermal unit per hour = 0 2931 W 118 2018 INTERNATIONAL FUEL GAS CODE" fir,71 ' UER (AryaghtOo 2017 ICC ALL RIGHTS RESERVED A-LDd by H®Ih¢ Van DmA(Rv O,,pfnmdA od om),(Qty of FRmdNmod)O[do, Nomb,,*10081vwS6o1JM 15, ZMO 0651 AM (PET) mt to S I ( 1, Ag,'^^I, ICC Nootths[Apmdomo,,oALM,,,,,Aodomo,, by any Ot Party o[AAmboemdmho[vsd Mgle-ody mpyncg and,yodwg L-IRISAd ANY VNAVTHO OLDER REPROD V,Mo OR D ISIRIEUTION IS VIOLATION OP THE FEDERAL COPYRIGHT 11 AND THE LICENSE AGREEMENT, AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER CHIMNEYS AND VENTS TABLE 504.3(5) SINGLE -WALL METAL PIPE OR TYPE ASBESTOS CEMENT VENT VENT CONNECTOR CAPACITY Number of Appliances Two or more Appliance Type Draft hood -equipped Appliance Vent Connection Direct to pipe or vent TOTAL VENT HEIGHT (H) (feet) CONNECTOR RISE (R) (feet) VENT CONNECTOR DIAMETER—(D) inches 3 4 5 6 7 8 MAXIMUM APPLIANCE INPUT RATING IN THOUSANDS OF BTUIH 1 21 40 68 102 146 205 6-8 2 28 53 86 124 178 235 3 34 61 98 147 204 275 1 23 44 77 117 179 240 15 2 30 56 92 134 194 265 3 35 64 102 155 216 298 1 25 49 84 129 190 270 30and up 2 31 58 97 145 211 295 3 36 68 107 164 232 321 COMMON VENT CAPACITY TOTAL VENT COMMON VENT DIAMETER—(D) inches HEIGHT (H) 4 5 6 7 8 10 12 (feet) COMBINED APPLIANCE INPUT RATING IN THOUSANDS OF BTUIH 6 48 78 111 155 205 320 NA 8 55 89 128 175 234 365 505 10 59 95 136 190 250 395 560 15 71 115 168 228 305 480 690 20 80 129 186 260 340 550 790 30 NA 147 215 300 400 650 940 50 NA NA NA 360 490 810 1,190 For SI 1 inch = 25 4 mm, 1 foot= 304 8 mm, 1 British thermal unit per hour = 0 2931 W 2018 INTERNATIONAL FUEL GAS CODE" 119 I " ' CITFIght @ 2017 ICC ALL RIGHTS RESERVED Awned by H®Ih¢ Van Dme(Rv O,,e Oo,d—od om),(Qty of FRmdwood)O[do, Nomb,,*1008170S601 JM 15. ZMO oc 51 AM (PET) mt to ( L—e Ag,,—® '^^I, ICC No (wN¢ [,Aodomoo. m ALM,, Pepeodomo-by any Ot Party o, Axmboemdmho[vsd M glo— ody mpyncg and ,yodwgp,oIRbAd ANY VNAVTHO RIVER REPRODUCTION OR DISIRIBVTIO N IS A VIOLATION OF THE FEDERAL COPYRIGHT ACT AND THE LICENSE AGREEMENT. AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER CHIMNEYS AND VENTS TABLE 504.3(6a) EXTERIOR MASONRY CHIMNEY Number of Appliances Two or more Appliance Type NAT+NAT Appliance Type B Vent double -wall Connection connector Combined Appliance Maximum Input Rating in Thousands of Btu per Hour INTERNAL AREA OF CHIMNEY (square inches) VENT HEIGHT (feet) 12 19 28 38 50 63 78 113 6 25 46 71 103 143 188 246 NA 8 28 53 82 119 163 218 278 408 10 31 56 90 131 177 236 302 454 15 NA 67 106 152 212 283 365 546 20 NA NA NA NA NA 325 419 648 30 NA NA NA NA NA NA 496 749 50 NA NA NA NA NA NA NA 922 100 NA NA NA NA NA NA NA NA TABLE 504.3(6b) EXTERIOR MASONRY CHIMNEY Number of Appliances Two or more Appliance Type NAT+NAT Appliance Type B Vent double -wall Connection connector Minimum Allowable Input Rating of Space -heating Appliance in Thousands of Btu per Hour VENT INTERNAL AREA OF CHIMNEY (square inches) HEIGHT (feet) 12 1 19 1 28 1 38 1 50 1 63 1 78 113 37°F or Greater Local 99% Winter Design Temperature: 37°F or Greater 6 0 0 0 0 0 0 0 NA 8 0 0 0 0 0 0 0 0 10 0 0 0 0 0 0 0 0 15 NA 0 0 0 0 0 0 0 20 NA NA NA NA NA 184 0 0 30 NA NA NA NA NA 393 334 0 50 NA NA NA NA NA NA NA 579 100 NA I NA I NA I NA I NA I NA NA I NA 27 to 36°F Local 99% Winter Design Temperature: 27 to 36°F 6 0 0 68 NA NA 180 212 NA 8 0 0 82 NA NA 187 214 263 10 0 51 NA NA NA 201 225 265 15 NA NA NA NA NA 253 274 305 20 NA NA NA NA NA 307 330 362 30 NA NA NA NA NA NA 445 485 50 NA NA NA NA NA NA NA 763 100 NA NA NA NA NA NA NA NA (eontimed) TABLE 504.3(6b) EXTERIOR MASONRY CHIMNEY —continued Minimum Allowable Input Rating of Space -heating Appliance in Thousands of Btu per Hour VENT INTERNAL AREA OF CHIMNEY (square inches) HEIGHT (feet) 12 1 19 1 28 1 38 1 50 1 63 1 78 1 113 17 to 26°F Local 99% Winter Design Temperature: 17 to 26°F 6 NA NA NA NA NA NA NA NA 8 NA NA NA NA NA NA 264 352 10 NA NA NA NA NA NA 278 358 15 NA NA NA NA NA NA 331 398 20 NA NA NA NA NA NA 387 457 30 NA NA NA NA NA NA NA 581 50 NA NA NA NA NA NA NA 862 100 NA NA NA NA NA NA NA NA 5 to 16°F Local 99% Winter Design Temperature:::: 5 to 16°F 6 NA NA NA NA NA NA NA NA 8 NA NA NA NA NA NA NA NA 10 NA NA NA NA NA NA NA 430 15 NA NA NA NA NA NA NA 485 20 NA NA NA NA NA NA NA 547 30 NA NA NA NA NA NA NA 682 50 NA NA NA NA NA NA NA NA 100 NA I NA I NA I NA I NA I NA I NA I NA VF or Lower Local 99% Winter Design Temperature: VF or Lower Not recommended for any vent configurations For SI OC= (OF - 32)/1 8, 1 inch = 25 4 mm, 1 square inch = 645 16 mint, 1 foot =304 8 mm, 1 British thermal unit per hour= 0 2931 W Note: See Figure B-19 in Appendix B for a map showing local 99-percent winter design temperatures in the United States 120 2018 INTERNATIONAL FUEL GAS CODE" fir,71 ' UER CopynghtOO?.o17 ICC ALL RIGHTS RESERVED A—LDd by H®Ih¢ Van Dme(Rv O,,e pooch od om),(Qty of FRmdNmod)O[do, Nomb,,*1008170501 JM 15. ZMO 065o AM (PET) mt to S I ( Lie Ag,e^ '^^I, ICC No otth, ,Aodomoo. m ALM,, ,,,Aodomo,, by any Ot Party o[ Axmboemdmho[vsd Mglo—o,IA-,and ,yodwg GMLOSed ANY UNAUTHO OLDER REPROD ,,MN OR D ISIRIEUTION IS VIOLATION OP THE FEDERAL COPYRIGHT 11 AND THE LICENSE AGREEMENT, AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER CHIMNEYS AND VENTS TABLE 504.3(7a) EXTERIOR MASONRY CHIMNEY Number of Appliances Two or more Appliance Type FAN +NAT Appliance Type B Vent double -wall Connection connector Combined Appliance Maximum Input Rating in Thousands of Btu per Hour INTERNAL AREA OF CHIMNEY (square inches) VENT HEIGHT (fee[) 12 19 28 38 50 63 78 113 6 74 119 178 257 351 458 582 853 8 80 130 193 279 384 501 636 937 10 84 138 207 299 409 538 686 1,010 15 NA 152 233 334 467 611 781 1,156 20 NA NA 250 368 508 668 858 1,286 30 NA NA NA 404 564 747 969 1,473 50 NA NA NA NA NA 831 1,089 1,692 100 NA NA NA NA NA NA NA 1,921 TABLE 504.3(7b) EXTERIOR MASONRY CHIMNEY Number of Appliances Two or more Appliance Type FAN +NAT Appliance Type B Vent double -wall Connection connector Minimum Allowable Input Rating of Space -heating Appliance in Thousands of Btu per Hour VENT INTERNAL AREA OF CHIMNEY (square inches) HEIGHT (feet) 12 1 19 1 28 1 38 1 50 1 63 1 78 113 37°F or Greater Local 99 % Winter Design Temperature: 37°F or Greater 6 0 0 0 0 0 0 0 0 8 0 0 0 0 0 0 0 0 10 0 0 0 0 0 0 0 0 15 NA 0 0 0 0 0 0 0 20 NA NA 123 190 249 184 0 0 30 NA NA NA 334 398 393 334 0 50 NA NA NA NA NA 714 707 579 100 NA NA NA NA NA NA NA 1,600 27 to 36°F Local 99 % Winter Design Temperature: 27 to 36°F 6 0 0 68 116 156 180 212 266 8 0 0 82 127 167 187 214 263 10 0 51 97 141 183 201 225 265 15 NA 111 142 183 233 253 274 305 20 NA NA 187 230 284 307 330 362 30 NA NA NA 330 319 419 445 485 50 NA NA NA NA NA 672 705 763 100 NA NA NA NA NA NA NA 1,554 (eontinued) TABLE 504.3(7b) EXTERIOR MASONRY CHIMNEY —continued Minimum Allowable Input Rating of Space -heating Appliance in Thousands of Btu per Hour VENT INTERNAL AREA OF CHIMNEY (square inches) HEIGHT (feet) 1 12 19 1 28 1 38 1 50 1 63 1 78 1 113 17 to 26°F Local 99 % Winter Design Temperature: 17 to 26°F 6 0 55 99 141 182 215 259 349 8 52 74 111 154 197 226 264 352 10 NA 90 125 169 214 245 278 358 15 NA NA 167 212 263 296 331 398 20 NA NA 212 258 316 352 387 457 30 NA NA NA 362 429 470 507 581 50 NA NA NA NA NA 723 766 862 100 NA NA NA NA NA NA NA 1,669 5 to 16°F Local 99 % Winter Design Temperature: 5 to 16°F 6 NA 78 121 166 214 252 301 416 8 NA 94 135 182 230 269 312 423 10 NA 111 149 198 250 289 331 430 15 NA NA 193 247 305 346 393 485 20 NA NA NA 293 360 408 450 547 30 NA NA NA 377 450 531 580 682 50 NA NA NA NA NA 797 853 972 100 NA NA NA NA NA NA NA 1,833 -10 to VF Local 99 % Winter Design Temperature: -10 to VF 6 NA NA 145 196 249 296 349 484 8 NA NA 159 213 269 320 371 494 10 NA NA 175 231 292 339 397 513 15 NA NA NA 283 351 404 457 586 20 NA NA NA 333 408 468 528 650 30 NA NA NA NA NA 603 667 805 50 NA NA NA NA NA NA 955 1,003 100 NA I NA I NA I NA I NA I NA I NA NA 11°F or Lower Local 99% Winter Design Temperature: -11°F or Lower Not recommended for any vent configurations For SI OC= (OF - 32)/1 8, 1 inch = 25 4 Firm, 1 square inch = 645 16 min', 1 foot =304 8 mm, 1 British thermal unit per hour= 0 2931 W Note: See Figure B-19 in Appendix B for a map showing local 99-percent winter design temperatures in the United States 2018 INTERNATIONAL FUEL GAS CODE" 121 I " ' CITFIght @ 2017 ICC ALL RIGHTS RESERVED Awned by H®Ih¢ Of, Dme(Rv O,,e pooch od om),(Qty of FRmdNmod)O[do, Nomb,,*10081700501 JM 15. ZMO oc 5o AM (PET) mt to ( Lie Affiee^®t'^^I, ICC No otths[,Aodomoo.m Muth,[,,Aodomo,, by any Ot Party o, Axmboemdmho[vsd Mglo—o,FA-,and ,yodwgp,oLOSAd ANY UNAUTHO RIVER REPRODUCTION OR DISTRIBUTION IS VIOLATION OF THE FEDERAL COPYRIGHT ACT AND THE LICENSE AGREEMENT. AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER 122 2018 INTERNATIONAL FUEL GAS CODE" " FrTTi' CopynghtOo2.017 ICC ALL RIGHTS RESERVED A—LDdby H®Ih¢Van Cm,(Rvdme Oo,d—od om),(Qty of FRmdNmod)O[d6N=b6*1008170S601 JM 15. ZMO oc 51 AM(PET)p,,mmt to rk ff.,I lk,ff., RR I,—Ag,—^ '^M, ICC Nootths,Aodomo,,oALhsodomo-by any Ot Party o[Axmboemd,Oo[vsd Mglo— odyWpyaog and,yodwg GMIRISed ANY VNAVTHO OLDER REPROD V,MN OR D ISIRIEVTION IS VIOLATION OP THE FEDERAL COPYRIGHT 11 AND THE LICENSE AGRE EM ENT. AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER CHAPTER 6 SPECIFIC APPLIANCES User note: About this chapter., Similar to Chapter 9 of the International Mechanical Code°, Chapter 6 of this code addresses specific types of appli- ances in detail Requirements include listing and labeling, installation, location, clearances, venting and exhausting, controls, support and combustion and ventilation air SECTION 601 (IFGC) GENERAL 601.1 Scope. This chapter shall govern the approval, design, installation, construction, maintenance, alteration and repair of the appliances and equipment specifically identified herein SECTION 602 (IFGC) DECORATIVE APPLIANCES FOR INSTALLATION IN FIREPLACES 602.1 General. Decorative appliances for installation in approved solid fuel -burning fireplaces shall be tested in accordance with ANSI Z21 60/CSA 6 26 and shall be installed in accordance with the manufacturer's instructions Manually lighted natural gas decorative appliances shall be tested in accordance with ANSI Z21 84 602.2 Flame safeguard device. Decorative appliances for installation in approved solid fuel -burning fireplaces, with the exception of those tested in accordance with ANSI Z21 84, shall utilize a direct ignition device, an ignitor or a pilot flame to ignite the fuel at the main burner, and shall be equipped with a flame safeguard device The flame safeguard device shall automatically shut off the fuel supply to a main burner or group of burners when the means of ignition of such burners becomes inoperative 602.3 Prohibited installations. Decorative appliances for installation in fireplaces shall not be installed where prohib- ited by Section 303 3 SECTION 603 (IFGC) LOG LIGHTERS 603.1 General. Log lighters shall be tested in accordance with CSA 8 and installed in accordance with the manufac- turer's instructions SECTION 604 (IFGC) VENTED GAS FIREPLACES (DECORATIVE APPLIANCES) 604.1 General. Vented gas fireplaces shall be tested in accor- dance with ANSI Z21 50/CSA 2 22, shall be installed in accordance with the manufacturer's instructions and shall be designed and equipped as specified in Section 602 2 604.2 Access. Panels, grilles and access doors that are required to be removed for normal servicing operations shall not be attached to the building SECTION 605 (IFGC) VENTED GAS FIREPLACE HEATERS 605.1 General. Vented gas fireplace heaters shall be installed in accordance with the manufacturer's instructions, shall be tested in accordance with ANSI Z21 88/CSA 2 33 and shall be designed and equipped as specified in Section 602 2 SECTION 606 (IFGC) INCINERATORS AND CREMATORIES 606.1 General. Incinerators and crematories shall be installed in accordance with the manufacturer's instructions SECTION 607 (IFGC) COMMERCIAL -INDUSTRIAL INCINERATORS 607.1 Incinerators, commercial -industrial. Commsercial- industrial-type incinerators shall be constructed and installed in accordance with NFPA 82 SECTION 608 (IFGC) VENTED WALL FURNACES 608.1 General. Vented wall furnaces shall be tested in accor- dance with ANSI Z21 86/CSA 2 32 and shall be installed in accordance with the manufacturer's instructions 608.2 Venting. Vented wall furnaces shall be vented in accordance with Section 503 608.3 Location. Vented wall furnaces shall be located so as not to cause a fire hazard to walls, floors, combustible fur- nishings or doors Vented wall furnaces installed between bathrooms and adjoining rooms shall not circulate au from bathrooms to other parts of the building 608.4 Door swing. Vented wall furnaces shall be located so that a door cannot swing within 12 inches (305 mm) of an air inlet or air outlet of such furnace measured at right angles to the opening Doorstops or door closers shall not be installed to obtain this clearance 608.5 Ducts prohibited. Ducts shall not be attached to wall furnaces Casing extension boots shall not be installed unless listed as part of the appliance 2018 INTERNAT10NAL FUEL GAS CODE® 123 I I1 I CoLFIEILOo2.017 ICC ALL RIGHTS RESERVED AwLDd by H®Ih¢ Van DmA(Rvdme Oo,dA od om),(Qty of FRmdNmod)O[do,N=b6xlo08170S601JM 15, ZMO oc 51 AM (PET) rt,b,mt to ( LEA Ag,, ^®'^Rt, ICC No(wN¢[TAodomo,,m AtO, �goodomo,o by anty y Ot Paro, AAmboemd,Oo[vsd Mglo¢ ody oTyncg and Nyodwg L,oIRb¢Ad ANY VNAVTHO RIVER REPROD VCTION OR DISIRIBITTON IS VIOLATION OF THE FEDERAL COPYRIGHT ACT AND THE LICENSE AGREEMENT. AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER SPECIFIC APPLIANCES 608.6 Access. Vented wall furnaces shall be provided with access for cleaning of heating surfaces, removal of bumers, replacement of sections, motors, controls, filters and other working parts, and for adjustments and lubrication of parts requiring such attention Panels, grilles and access doors that are required to be removed for normal servicing operations shall not be attached to the building construction SECTION 609 (IFGC) FLOOR FURNACES 609.1 General. Floor furnaces shall be tested in accordance with ANSI Z21 86/CSA 2 32 and shall be installed in accor- dance with the manufacturer's instructions 609.2 Placement. The following provisions apply to floor furnaces 1 Floors Floor furnaces shall not be installed in the floor of any doorway, stairway landing, aisle or passageway of any enclosure, public or private, or in an exitway from any such room or space 2 Walls and comers The register of a floor furnace with a horizontal warm -au outlet shall not be placed closer than 6 inches (152 mm) to the nearest wall A distance of not less than 18 inches (457 mm) from two adjoining sides of the floor furnace register to walls shall be pro- vided to eliminate the necessity of occupants walking over the warm -air discharge The remaining sides shall be permitted to be placed not closer than 6 inches (152 mm) to a wall Wall -register models shall not be placed closer than 6 inches (152 mm) to a comer 3 Draperies The furnace shall be placed so that a door, drapery or similar object cannot be nearer than 12 inches (305 mm) to any portion of the register of the furnace 4 Floor construction Floor furnaces shall not be installed in concrete floor construction built on grade 5 Thermostat The controlling thermostat for a floor fur- nace shall be located within the same room or space as the floor furnace or shall be located in an adjacent room or space that is permanently open to the room or space containing the floor furnace 609.3 Bracing. The floor around the furnace shall be braced and headed with a support framework designed in accordance with the International Building Code 609.4 Clearance. The lowest portion of the floor furnace shall have not less than a 6-mch (152 mm) clearance from the grade level, except where the lower 6-mch (152 mm) portion of the floor furnace is sealed by the manufacturer to prevent entrance of water, the minimum clearance shall be not less than 2 inches (51 mm) Where such clearances cannot be pro- vided, the ground below and to the sides shall be excavated to form a pit under the furnace so that the required clearance is provided beneath the lowest portion of the furnace A 12-inch (305 mm) mimmum clearance shall be provided on all sides except the control side, which shall have an 18-inch (457 mm) minimum clearance 609.5 First floor installation. Where the basement story level below the floor in wluch a floor furnace is installed is utilized as habitable space, such floor furnaces shall be enclosed as specified in Section 609 6 and shall project into a nonhabitable space 609.6 Upper floor installations. Floor furnaces installed in upper stories of bwldmgs shall project below into nonhabit- able space and shall be separated from the nonhabitable space by an enclosure constructed of noncombustible materials The floor furnace shall be provided with access, clearance to all sides and bottom of not less than 6 inches (152 mm) and combustion air in accordance with Section 304 SECTION 610 (IFGC) DUCT FURNACES 610.1 General. Duct furnaces shall be tested in accordance with ANSI Z83 8/CSA 2 6 or UL 795 and shall be installed in accordance with the manufacturer's instructions 610.2 Access panels. Ducts connected to duct furnaces shall have removable access panels on both the upstream and downstream sides of the furnace 610.3 Location of draft hood and controls. The controls, combustion air inlets and draft hoods for duct furnaces shall be located outside of the ducts The draft hood shall be located in the same enclosure from which combustion air is taken 610.4 Circulating air. Where a duct furnace is installed so that supply ducts convey air to areas outside the space con- taining the furnace, the return au shall be conveyed by a duct(s) sealed to the furnace casing and terminating outside the space containing the furnace The duct furnace shall be installed on the positive pressure side of the circulating au blower SECTION 611 (IFGC) NONRECIRCULATING DIRECT -FIRED INDUSTRIAL AIR HEATERS 611.1 General. Nonrecirculating direct -fired industrial air heaters shall be listed to ANSI Z83 4/CSA 3 7 and shall be installed in accordance with the manufacturer's instructions 611.2 Installation. Nonrecirculating direct -fired industrial air heaters shall not be used to supply any area containing sleeping quarters Nonrecirculating direct -fired industrial air heaters shall be installed only in industrial or commercial occupancies Nonrecirculating direct -fired industrial air heaters shall be permitted to provide ventilation air 611.3 Clearance from combustible materials. Nonrecircu- lating direct -fired industrial air heaters shall be installed with a clearance from combustible materials of not less than that shown on the rating plate and in the manufacturer's instructions 611.4 Supply air. All air handled by a nonrecirculating direct -fired industrial air heater, including combustion air, shall be ducted directly from the outdoors 124 2018 INTERNATIONAL FUEL GAS CODE® firi1 I UER Copyngbt Oo 2.017 ICC ALL RIGHTS RESERVED AwLDd by H®Ih¢ Van Dme(Rv dme Oo,dv od om),(Dtyof PnmdNmod)O,do,N=b¢x1 008170S601 JM 15, Z.mo oc 51 AM (GET) mtto S I ( 1, sAg,e^ '^Rt, ICC No otths TAodomoo. m AtOy odomo,o by any Ot Party o, AAmboema,Ooossd Mgleu ooly o,and Nyodwg GMIRISAd ANY VNAVTHO OLDER REPROD ,,MN OR D ISIRIEVTION IS VIOLATION OP THE FEDERAL COPYRIGHT 11 AND THE LICENSE AGREEMENT, AND REJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER SPECIFIC APPLIANCES 611.5 Outdoor air louvers. If outdoor air louvers of either the manual or automatic type are used, such devices shall be proven to be in the open position prior to allowing the main burners to operate 611.6 Atmospheric vents and gas reliefs or bleeds. Nonre- circulating direct fired industrial air heaters with valve tram components equipped with atmospheric vents or gas reliefs or bleeds shall have their atmospheric vent lines or gas reliefs or bleeds lead to the outdoors Means shall be employed on these lines to prevent water from entering and to prevent blockage by insects and foreign matter An atmospheric vent line shall not be required to be provided on a valve tram com- ponent equipped with a listed vent limiter 611.7 Relief opening. The design of the installation shall include provisions to perunt nonrecirculating direct -fired industrial air heaters to operate at rated capacity without overpressurizing the space served by the heaters by taking into account the structure's designed infiltration rate, provid- ing properly designed relief openings or an interlocked power exhaust system, or a combination of these methods The structure's designed infiltration rate and the size of relief openings shall be determmed by approved engineering meth- ods Relief openings shall be permitted to be louvers or coun- terbalanced gravity dampers Where motorized dampers or closable louvers are used, they shall be verified to be in their full open position prior to main burner operation 611.8 Access. Nonrecirculating direct -fired industrial air heaters shall be provided with access for removal of burners, replacement of motors, controls, filters and other working parts, and for adjustment and lubrication of parts requiring maintenance 611.9 Purging. Inlet ducting where used, shall be purged by not less than four air changes prior to an ignition attempt SECTION 612 (IFGC) RECIRCULATING DIRECT -FIRED INDUSTRIAL AIR HEATERS 612.1 General. Recirculating direct -fired industrial air heat- ers shall be listed to ANSI Z83 18 and shall be installed in accordance with the manufacturer's instructions 612.2 Location. Recirculating ckrectfired industrial air heaters shall be installed only in industrial and commercial occupancies Recirculating ckrectfired air heaters shall not serve any area containing sleeping quarters Recirculating ckrectfired industrial air heaters shall not be installed in haz- ardous locations or in buildings that contain flammable sol- ids, liquids or gases, explosive materials or substances that can become toxic when exposed to flame or heat 612.3 Installation. Direct -fired industrial air heaters shall be permuted to be installed in accordance with their listing and the manufacturer's instructions Direct -fired industrial air heaters shall be installed only in industrial or commercial occupancies Direct -fired industrial air heaters shall be per- mitted to provide fresh air ventilation 612.4 Clearance from combustible materials. Direct -fired industrial air heaters shall be installed with a clearance from combustible material of not less than that shown on the label and in the manufacturer's instructions 612.5 Air supply. Au to direct -fired industrial air heaters shall be taken from the building, ducted directly from out- doors, or a combination of both Direct -fired industrial air heaters shall incorporate a means to supply outside ventila- tion air to the space at a rate of not less than 4 cubic feet per minute per 1,000 Btu per hour (0 38 m' per min per kW) of rated input of the heater If a separate means is used to supply ventilation au, an interlock shall be provided so as to lock out the main burner operation until the mechanical means is veri- fied Where outside au dampers or closing louvers are used, they shall be verified to be in the open position prior to main burner operation 612.6 Atmospheric vents, gas reliefs or bleeds. Direct -fired industrial air heaters with valve tram components equipped with atmospheric vents, gas reliefs or bleeds shall have their atmospheric vent lines and gas reliefs or bleeds lead to the outdoors Means shall be employed on these lines to prevent water from entering and to prevent blockage by insects and foreign matter An atmospheric vent line shall not be required to be provided on a valve tram component equipped with a listed vent limiter 612.7 Relief opening. The design of the installation shall include adequate provision to pernut direct -fired industrial air heaters to operate at rated capacity by taking into account the structure's designed infiltration rate, providing properly designed relief openings or an interlocked power exhaust sys- tem, or a combination of these methods The structure's designed infiltration rate and the size of relief openings shall be determmed by approved engineering methods Relief openings shall be permitted to be louvers or counterbalanced gravity dampers Where motorized dampers or closable lou- vers are used, they shall be verified to be in their full open position prior to main burner operation SECTION 613 (IFGC) CLOTHES DRYERS 613.1 General. Clothes dryers shall be tested in accordance with ANSI Z21 5 1/CSA 7 1 or ANSI Z21 5 2/CSA 7 2 and shall be installed in accordance with the manufacturer's instructions SECTION 614 (IFGC) CLOTHES DRYER EXHAUST [MJ 614.1 Installation. Clothes dryers shall be exhausted in accordance with the manufacturer's instructions Dryer exhaust systems shall be independent of all other systems, and shall convey the moisture and any products of combus- tion to the outside of the building [MJ 614.2 Duct penetrations. Ducts that exhaust clothes dryers shall not penetrate or be located within any fireblock- ing, draftstopping or any wall, floor/ceiling or other assembly required by the International Building Code to be fire -resis- tance rated, unless such duct is constructed of galvanized 2018 INTERNAT10NAL FUEL GAS CODE® 125 I I1 I CoLFIEILOo2.017 ICC ALL RIGHTS RESERVED Awned by H®Ih¢ Van DmA(Rvdme Oo,dA od om),(Dty of FRmdNmod)O[do,N=b6xlo08170S601JM 15. ZMO oc 51 AM (PET) Mt,b,mt to ( LEA Ag,, ^®'^Rt, ICC No fwN¢[TAodomoo.m AtO, goodomo,o by any Ot Party o, AAmboemd,Oo[vsd Mglo¢ ody oTyncg and Nyodwg L,oIRb¢Ad ANY VNAVTHO RIVER REICLA VCTION OR DISIRIBITTO N IS A VIOLATION OF THE FEDERAL COPYRIGHT ACT AND THE LICENSE AGREEMENT. AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER SPECIFIC APPLIANCES steel or aluminum of the thickness specified in Table 603 4 of the International Mechanical Code and the fire -resistance rating is maintained in accordance with the International Building Code Fire dampers shall not be installed in clothes dryer exhaust duct systems [M] 614.3 Cleaning access. Each vertical duct riser for dry- ers listed to ANSI Z21 5 2/CSA 7 2 shall be provided with a cleanout or other means for cleaning the interior of the duct [M] 614.4 Exhaust installation. Exhaust ducts for clothes dryers shall term mate on the outside of the building and shall be equipped with a backdraft damper Screens shall not be installed at the duct termination Ducts shall not be connected or installed with sheet metal screws or other fasteners that will obstruct the flow Clothes dryer exhaust ducts shall not be connected to a vent connector, vent or chimney Clothes dryer exhaust ducts shall not extend into or through ducts or plenums Clothes dryer exhaust ducts shall be sealed in accor- dance with Section 603 9 of the Intemational Mechanical Code 614.4.1 Exhaust termination outlet and passageway. The passageway of dryer exhaust duct terminals shall be undiminished in size and shall provide an open area of not less than 12 5 square inches (8065 mm) [M] 614.5 Dryer exhaust duct power ventilators. Domestic dryer exhaust duct power ventilators shall be listed and labeled to UL 705 for use in dryer exhaust duct systems The dryer exhaust duct power ventilator shall be installed in accordance with the manufacturer's instructions [M] 614.6 Makeup air. Installations exhausting more than 200 cfin (0 09 m'/s) shall be provided with makeup air Where a closet is designed for the installation of a clothes dryer, an opening having an area of not less than 100 square inches (645 mm) for makeup air shall be provided in the closet enclosure, or makeup air shall be provided by other approved means [M] 614.7 Protection required. Protective shield plates shall be placed where nails or screws from finish or other work are likely to penetrate the clothes dryer exhaust duct Shield plates shall be placed on the finished face of all framing members where there is less than 1'/q inches (32 mm) between the duct and the finished face of the framing mem- ber Protective shield plates shall be constructed of steel, shall have a mmimum thickness of 0 062 inch (1 6 mm) and shall extend not less than 2 inches (51 mm) above sole plates and below top plates [M] 614.8 Domestic clothes dryer exhaust ducts. Exhaust ducts for domestic clothes dryers shall conform to the requirements of Sections 614 8 1 through 614 8 6 [M] 614.8.1 Material and size. Exhaust ducts shall have a smooth interior finish and shall be constructed of metal not less than 0 016 inch (0 4 mm) in thickness The exhaust duct size shall be 4 inches (102 mm) nominal in diameter [M] 614.8.2 Duct installation. Exhaust ducts shall be sup- ported at 4-foot (1219 mm) intervals and secured in place The msert end of the duct shall extend into the adjoining duct or fitting in the direction of airflow Ducts shall not be joined with screws or similar fasteners that protrude more than '/A inch (3 2 mm) into the inside of the duct Where dryer exhaust ducts are enclosed in wall or ceiling cavities, such cavities shall allow the installation of the duct without deformation [M] 614.8.3 Transition ducts. Transition ducts used to connect the dryer to the exhaust duct system shall be a sin- gle length that is listed and labeled in accordance with UL 2158A Transition ducts shall be not more than 8 feet (2438 mm) in length, and shall not be concealed within construction [M] 614.8.4 Duct length. The maximum allowable exhaust duct length shall be determined by one of the methods specified in Sections 614 8 4 1 through 614 8 4 3 [M] 614.8.4.1 Specified length. The maximum length of the exhaust duct shall be 35 feet (10 668 mm) from the connection to the transition duct from the dryer to the outlet terminal Where fittings are utilized, the max- imum length of the exhaust duct shall be reduced in accordance with Table 614 8 4 1 [M] 614.8.4.2 Manufacturer's instructions. The max- imum length of the exhaust duct shall be determined by the dryer manufacturer's installation instructions The code official shall be provided with a copy of the instal- lation instructions for the make and model of the dryer Where the exhaust duct is to be concealed, the installa- tion instructions shall be provided to the code official prior to the concealment inspection In the absence of fitting equivalent length calculations from the clothes dryer manufacturer, Table 614 8 4 1 shall be utilized [Ml TABLE 614.8.4.1 DRYER EXHAUST DUCT FITTING EQUIVALENT LENGTH DRYER EXHAUST DUCT FITTING TYPE EQUIVALENT LENGTH 4 inch radius mitered 45-degree elbow 2 feet, 6 inches 4 inch radius mitered 90-degree elbow 5 feet 6 inch radius smooth 45-degree elbow 1 foot 6 inch radius smooth 90-degree elbow 1 foot, 9 inches 8 inch radius smooth 45-degree elbow 1 foot 8 inch radius smooth 90-degree elbow 1 foot, 7 inches 10 inch radius smooth 45-degree elbow 9 inches 10 inch radius smooth 90-degree elbow 1 foot, 6 inches For SI 1 inch= 25 4 into, 1 foot =304 8 min, 1 degree= 0 01745 rad 126 2018 INTERNATIONAL FUEL GAS CODE® rff.,[[[ CopyaghtOo2.017 ICC ALL RIGHTS RESERVED A—LDd by H®Ih¢ Van Dme(Rv dme pooch od om),(Dty of FRmdNmod)O[do,N=b,,*1008170S601 JM 15. ZMO oc 51 AM (GET) mt to k I ( RR 1, Ag,'^Rt, ICC No otths TAodomoam Athsodomo- by any Ot Party o[ Axmboemdmho[vsd Mgle—ooly o,and Nyodwg GMIRISed ANY VNAVTHO OLDER REPROD V,Mo OR D ISIRIEVTION IS VIOLATION OP THE FEDERAL COPYRIGHT 11 AND THE LICENSE AGRE EM ENT. AND REJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER SPECIFIC APPLIANCES [M] 614.8.4.3 Dryer exhaust duct power ventilator length. The maximum length of the exhaust duct shall be determined by the dryer exhaust duct power ventila- tor manufacturer's installation instructions [M] 614.8.5 Length identification. Where the exhaust duct equivalent length exceeds 35 feet (10 668 mm), the equivalent length of the exhaust duct shall be identified on a permanent label or tag The label or tag shall be located within 6 feet (1829 mm) of the exhaust duct connection [M] 614.8.6 Exhaust duct required. Where space for a clothes dryer is provided, an exhaust duct system shall be installed Where the clothes dryer is not installed at the time of occupancy, the exhaust duct shall be capped at the location of the future dryer Exception: Where a listed condensing clothes dryer is installed prior to occupancy of the structure [M] 614.9 Commercial clothes dryers. The installation of dryer exhaust ducts serving Type 2 clothes dryers shall com- ply with the appliance manufacturer's instructions Exhaust fan motors installed in exhaust systems shall be located out- side of the airstream In multiple installations, the fan shall operate continuously or be interlocked to operate when any individual unit is operating Ducts shall have a minimum clearance of 6 inches (152 mm) to combustible materials [M] 614.10 Common exhaust systems for clothes dryers located in multistory structures. Where a common multi- story duct system is designed and installed to convey exhaust from multiple clothes dryers, the construction of such system shall be in accordance with all of the following 1 The shaft in which the duct is installed shall be con- structed and fire -resistance rated as required by the International Building Code 2 Dampers shall be prohibited in the exhaust duct Pen- etrations of the shaft and ductwork shall be protected in accordance with Section 607 5 5, Exception 2, of the International Mechanical Code 3 Rigid metal ductwork shall be installed within the shaft to convey the exhaust The ductwork shall be constructed of sheet steel having a minimum thick- ness of 0 0187 inch (0 471 mm) (No 26 gage) and in accordance with SMACNA Duct Construction Stan- dards 4 The ductwork within the shaft shall be designed and installed without offsets 5 The exhaust fan motor design shall be in accordance with Section 503 2 of the International Mechanical Code 6 The exhaust fan motor shall be located outside of the airstream 7 The exhaust fan shall run continuously, and shall be connected to a standby power source 8 The exhaust fan operation shall be monitored in an approved location and shall initiate an audible or visual signal when the fan is not in operation 9 Makeup air shall be provided for the exhaust system 10 A cleanout opening shall be located at the base of the shaft to provide access to the duct to allow for clean- ing and inspection The finished opening shall be not less than 12 inches by 12 inches (305 mm by 305 mm) 11 Screens shall not be installed at the termination SECTION 615 (IFGC) SAUNA HEATERS 615.1 General. Sauna heaters shall be installed in accordance with the manufacturer's instructions 615.2 Location and protection. Sauna heaters shall be located so as to minimize the possibility of accidental contact by a person in the room 615.2.1 Guards. Sauna heaters shall be protected from accidental contact by an approved guard or barrier of material having a low coefficient of thermal conductivity The guard shall not substantially affect the transfer of heat from the heater to the room 615.3 Access. Panels, grilles and access doors that are required to be removed for normal servicing operations shall not be attached to the building 615.4 Combustion and dilution air intakes. Sauna heaters of other than the direct -vent type shall be installed with the draft hood and combustion air intake located outside the sauna room Where the combustion air inlet and the draft hood are in a dressing room adjacent to the sauna room, there shall be provisions to prevent physically blocking the com- bushon air inlet and the draft hood inlet, and to prevent phys- ical contact with the draft hood and vent assembly, or warning notices shall be posted to avoid such contact Any warning notice shall be easily readable, shall contrast with its background and the wording shall be in letters not less than V, inch (6 4 mm) high 615.5 Combustion and ventilation air. Combustion air shall not be taken from inside the sauna room Combustion and ventilation air for a sauna heater not of the direct -vent type shall be provided to the area in which the combustion air inlet and draft hood are located in accordance with Section 304 615.6 Heat and time controls. Sauna heaters shall be equipped with a thermostat that will limit room temperature to 1940F (90°C) If the thermostat is not an integral part of the sauna heater, the heat -sensing element shall be located within 6 inches (152 mm) of the ceiling If the heat -sensing element is a capillary tube and bulb, the assembly shall be attached to the wall or other support, and shall be protected against physical damage 615.6.1 Timers. A timer, if provided to control main burner operation, shall have a maximum operating time of 1 hour The control for the timer shall be located outside the sauna room 615.7 Sauna room. A ventilation opening into the sauna room shall be provided The opening shall be not less than 4 inches by 8 inches (102 mm by 203 mm) located near the top of the door into the sauna room 2018 INTERNAT10NAL FUEL GAS CODE® 127 I I 1 I CALFIEIL @ 2017 ICC ALL RIGHTS RESERVED A—LDd by H®Ih¢ Van Dme(Rv dme pooch od om),(Dty of FRmdNmod)O[do, Nomb,,*1008170S601 JM 15. ZMO oc 51 AM (PET) t to ( Lie Affiee^® Rt, ICC No fwN¢[TAodomoo.m AtO,Pepeodomo- by any Ot Party o, Axmboemdm6o d Mglo—ody mpyncg and Nyodwg LARISAd ANY VNAVTHO RIVER REICLA VCTION OR DISIRIBITTO N IS A VIOLATION OF THE FEDERAL COPYRIGHT ACT AND THE LICENSE AGREEMENT. AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER SPECIFIC APPLIANCES 615.7.1 Warning notice. The following permanent notice, constructed of approved material, shall be mechanically attached to the sauna room on the outside WARNING DO NOT EXCEED 30 MINUTES IN SAUNA EXCESSIVE EXPOSURE CAN BE HARMFUL TO HEALTH ANY PERSON WITH POOR HEALTH SHOULD CONSULT A PHYSICIAN BEFORE USING SAUNA The words shall contrast with the background and the wording shall be in letters not less than V, inch (6 4 mm) high Exception: This section shall not apply to one- and two-family dwellings SECTION 616 (IFGC) ENGINE AND GAS TURBINE -POWERED EQUIPMENT 616.1 Powered equipment. Permanently installed equipment powered by internal combustion engines and turbines shall be installed in accordance with the manufacturer's instructions and NFPA 37 Stationary engine generator assemblies shall meet the requirements of UL 2200 616.2 Gas supply connection. Equipment powered by inter- nal combustion engines and turbines shall not be rigidly con- nected to the gas supply piping SECTION 617 (IFGC) POOL AND SPA HEATERS 617.1 General. Pool and spa heaters shall be tested in accor- dance with ANSI Z21 56/CSA 4 7 and shall be installed in accordance with the manufacturer's instructions SECTION 618 (IFGC) FORCED -AIR WARM -AIR FURNACES 618.1 General. Forced -air warm -air furnaces shall be tested in accordance with ANSI Z21 47/CSA 2 3 or UL 795 and shall be installed in accordance with the manufacturer's instructions 618.2 Dampers. Volume dampers shall not be placed in the au inlet to a furnace in a manner that will reduce the required air to the furnace 618.3 Prohibited sources. Outdoor or return air for forced - air heating and cooling systems shall not be taken from the following locations 1 Closer than 10 feet (3048 mm) from an appliance vent outlet, a vent opening from a plumbing drainage system or the discharge outlet of an exhaust fan, unless the out- let is 3 feet (914 mm) above the outside air inlet 2 Where there is the presence of objectionable odors, fumes or flammable vapors, or where located less than 10 feet (3048 mm) above the surface of any abutting public way or driveway, or where located at grade level by a sidewalk, street, alley or driveway 3 A hazardous or insanitary location or a refrigeration machinery room as defined in the International Mechanical Code 4 A room or space, the volume of which is less than 25 percent of the entire volume served by such system Where connected by a permanent opening having an area sized in accordance with this code, adjoining rooms or spaces shall be considered to be a single room or space for the purpose of determining the volume of such rooms or spaces Exception: The minimum volume requirement shall not apply where the amount of return air taken from a room or space is less than or equal to the amount of supply air delivered to such room or space 5 A room or space containing an appliance where such a room or space serves as the sole source of return air Exception: This shall not apply where 1 The appliance is a direct -vent appliance or an appliance not requiring a vent in accordance with Section 501 8 2 The room or space complies with the follow - mg requirements 21 The return au shall be taken from a room or space having a volume exceeding 1 cubic foot for each 10 Btu/h (9 6 L/W) of combined input rat- ing of all fuel -burning appliances therein 22 The volume of supply air discharged back into the same space shall be approximately equal to the volume of return au taken from the space 23 Return -air inlets shall not be located within 10 feet (3048 mm) of a draft hood in the same room or space or the combustion chamber of any atmo- spheric burner appliance in the same room or space 3 Rooms or spaces containing solid fuel -burning appliances, provided that return -air inlets are located not less than 10 feet (3048 mm) from the firebox of such appliances 6 A closet, bathroom, toilet room, kitchen, garage, boiler room, furnace room or unconditioned attic Exceptions: 1 Where return air intakes are located not less than 10 feet (3048 mm) from cooking appli- ances and serve only the kitchen area, taking return air from a kitchen area shall not be pro- hibited 2 Dedicated forced air systems serving only a garage shall not be prohibited from obtaining return air from the garage 7 A crawl space by means of direct connection to the return side of a forced -air system Transfer openings in the crawl space enclosure shall not be prohibited 128 2018 INTERNATIONAL FUEL GAS CODE® Fff.,( 1 I CopyrightOo2.017 ICC ALL RIGHTS RESERVED AwLDd by H®Ih¢ Van DmA(Rvdme Oo,dA od om),(Dty of FRmdNmod)O[do,N=b6xlo08170S601JM 15. ZMO oc 51 AM (GET) mt to k I firiTER 1, sAg,e^ '^Rt, ICC No otths TAodomoo. m AtOy odomo,o by any Ot Party o[ AAmboemd,Oo[vsd Mgleu ooly o,and Nyodwg GMIRISAd ANY VNAVTHO OLDER REPROD VCIION OR D ISIRIEVTION IS VIOLATION OP THE FEDERAL COPYRIGHT 11 AND THE LICENSE AGREEME NT. AND REJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER SPECIFIC APPLIANCES 618.4 Screen. Required outdoor au inlets for residential por- tions of a building shall be covered with a screen having '/q inch (6 4 mm) openings Required outdoor air inlets serving a nonresidential portion of a building shall be covered with screen having openings larger than'/q inch (6 4 mm) and not larger than 1 inch (25 mm) 618.5 Return -air limitation. Return air from one dwelling unit shall not be discharged into another dwelling unit 618.6 (IFGS) Furnace plenums and air ducts. Where a fur- nace is installed so that supply ducts carry air circulated by the furnace to areas outside of the space containing the fur- nace, the return air shall be handled by a duct(s) sealed to the furnace casing and terminating outside of the space contain - mg the furnace SECTION 619 (IFGC) CONVERSION BURNERS 619.1 Conversion burners. The installation of conversion burners shall conform to ANSI Z21 8 SECTION 620 (IFGC) UNIT HEATERS 620.1 General. Unit heaters shall be tested in accordance with ANSI Z83 8/CSA 2 6 and shall be installed in accor- dance with the manufacturer's instructions 620.2 Support. Suspended -type unit heaters shall be sup- ported by elements that are designed and constructed to accommodate the weight and dynamic loads Hangers and brackets shall be of noncombustible material 620.3 Ductwork. Ducts shall not be connected to a unit heater unless the heater is listed for such installation 620.4 Clearance. Suspended -type unit heaters shall be installed with clearances to combustible materials of not less than 18 inches (457 mm) at the sides, 12 inches (305 mm) at the bottom and 6 inches (152 mm) above the top where the unit heater has an internal draft hood or 1 inch (25 mm) above the top of the sloping side of the vertical draft hood Floor -mounted -type unit heaters shall be installed with clearances to combustible materials at the back and one side only of not less than 6 inches (152 mm) Where the flue gases are vented horizontally, the 6-inch (152 mm) clearance shall be measured from the draft hood or vent instead of the rear wall of the unit heater Floor -mounted -type unit heaters shall not be installed on combustible floors unless listed for such installation Clearances for servicing all unit heaters shall be in accor- dance with the manufacturer's installation instructions Exception: Unit heaters listed for reduced clearance shall be permitted to be installed with such clearances in accor- dance with their listing and the manufacturer's instruc- tions 620.5 (IFGS) Installation in commercial garages and air- craft hangars. Unit heaters installed in garages for more than three motor vehicles or in aircraft hangars shall be installed in accordance with Sections 305 9, 305 10 and 305 11 SECTION 621 (IFGC) UNVENTED ROOM HEATERS 621.1 General. Unvented room heaters shall be tested in accordance with ANSI Z21 11 2 and shall be installed in accordance with the conditions of the listing and the manu- facturer's instructions Unvented room heaters utilizing fuels other than fuel gas shall be regulated by the International Mechanical Code 621.2 Prohibited use. One or more invented room heaters shall not be used as the sole source of comfort heating in a dwelling unit 621.3 Input rating. Unvented room heaters shall not have an input rating in excess of 40,000 Bta/h (11 7 kW) 621.4 Prohibited locations. Unvented room heaters shall not be installed within occupancies in Groups A, E and I The location of invented room heaters shall comply with Section 3033 621.5 Room or space volume. The aggregate input rating of all invented appliances installed in a room or space shall not exceed 20 Bta/h per cubic foot (207 W/m') of volume of such room or space Where the room or space in which the appli- ances are installed is directly connected to another room or space by a doorway, archway or other opening of comparable size that cannot be closed, the volume of such adjacent room or space shall be permitted to be included in the calculations 621.6 Oxygen -depletion safety system. Unvented room heaters shall be equipped with an oxygen -depletion -sensitive safety shutoff system The system shall shut off the gas sup- ply to the main and pilot burners when the oxygen in the sur- rounding atmosphere is depleted to the percent concentration specified by the manufacturer, but not lower than 18 percent The system shall not incorporate field adjustment means capable of changing the set point at which the system acts to shut off the gas supply to the room heater 621.7 Unvented decorative room heaters. An invented decorative room heater shall not be installed in a factory -built fireplace unless the fireplace system has been specifically tested, listed and labeled for such use in accordance with UL 127 621.7.1 Ventless firebox enclosures. Ventless firebox enclosures used with invented decorative room heaters shall be listed as complying with ANSI Z21 91 SECTION 622 (IFGC) VENTED ROOM HEATERS 622.1 General. Vented room heaters shall be tested in accor- dance with ANSI Z21 86/CSA 2 32, shall be designed and equipped as specified in Section 602 2 and shall be installed in accordance with the manufacturer's instructions SECTION 623 (IFGC) COOKING APPLIANCES 623.1 Cooking appliances. Cooking appliances that are designed for permanent installation, including ranges, ovens, stoves, broilers, grills, fryers, griddles, hot plates and barbe- 2018 INTERNAT10NAL FUEL GAS CODE® 129 I I 1 I CITFIght @ 2017 ICC ALL RIGHTS RESERVED A—LDd by H®Ih¢ Van Dme(Rv dme pooch od om),(Dty of FRmdNmod)O[do, Nomb6xlo08170S601JM 15. ZMO oc 51 AM (PET) t to ( Lie Affiee^® Rt, ICC No fwN¢[TAodomoo.m AtO,Pepeodomo- by any Ot Party o, Axmboemdm6o d Mglo—ody mpyncg and Nyodwg LARISAd ANY VNAVTHO RIVER REICLA VCTION OR DISIRIBITTO N IS A VIOLATION OF THE FEDERAL COPYRIGHT ACT AND THE LICENSE AGREEMENT. AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER SPECIFIC APPLIANCES cues, shall be tested in accordance with ANSI Z21 1, ANSI Z21 58/CSA 1 6 or ANSI Z83 11/CSA 1 8 and shall be installed in accordance with the manufacturer's instructions 623.2 Prohibited location. Cooking appliances designed, tested, listed and labeled for use in commercial occupancies shall not be installed within dwelling units or within any area where domestic cooking operations occur Exceptions: 1 Appliances that are also listed as domestic cooking appliances 2 Where the installation is designed by a licensed Pro- fessional Engineer, in compliance with the manufac- turer's installation instructions 623.3 Domestic appliances. Cooking appliances installed within dwelling units and within areas where domestic cook- ing operations occur shall be listed and labeled as household - type appliances for domestic use 623.4 Domestic range installation. Domestic ranges installed on combustible floors shall be set on their own bases or legs and shall be installed with clearances of not less than that shown on the label 623.5 Open -top broiler unit hoods. A ventilating hood shall be provided above a domestic open -top broiler unit, unless otherwise listed for forced down draft ventilation 623.5.1 Clearances. A minimum clearance of 24 inches (610 mm) shall be maintained between the cooking top and combustible material above the hood The hood shall be at least as wide as the open -top broiler unit and be cen- tered over the unit 623.6 Commercial cooking appliance venting. Commercial cooking appliances, other than those exempted by Section 501 8, shall be vented by connecting the appliance to a vent or chimney in accordance with this code and the appliance manufacturer's instructions or the appliance shall be vented in accordance with Section 505 1 1 623.7 (IFGS) Vertical clearance above cooking top. Household cooking appliances shall have a vertical clearance above the cooking top of not less than 30 inches (760 mm) to combustible material and metal cabinets A minimum clear- ance of 24 inches (610 mm) is permitted where one of the fol- lowing is installed 1 The underside of the combustible material or metal cabinet above the cooking top is protected with not less than '/q inch (6 4 mm) insulating millboard covered with sheet metal not less than 0 0122 inch (0 3 mm) thick 2. A metal ventilating hood constructed of sheet metal not less than 0 0122 inch (0 3 mm) thick is installed above the cooking top with a clearance of not less than '/q inch (6 4 mm) between the hood and the underside of the combustible material or metal cabinet The hood shall have a width not less than the width of the appli- ance and shall be centered over the appliance. 3 A listed cooking appliance or microwave oven is installed over a listed cooking appliance and in compli- ance with the terms of the manufacturer's installation instructions for the upper appliance SECTION 624 (IFGC) WATER HEATERS 624.1 General. Water heaters shall be tested in accordance with ANSI Z21 10 1/CSA 4 1 and ANSI Z21 10 3/CSA 4 3 and shall be installed in accordance with the manufacturer's instructions Water heaters utilizing fuels other than fuel gas shall be regulated by the Intemahonal Mechamcal Code. 624.1.1 Installation requirements. The requirements for water heaters relative to sizing, relief valves, dram pans and scald protection shall be in accordance with the Inter- national Plumbing Code. 624.2 Water heaters utilized for space heating. Water heat- ers utilized both to supply potable hot water and provide hot water for space -heating applications shall be listed and labeled for such applications by the manufacturer and shall be installed in accordance with the manufacturer's mstruc- tions and the International Plumbing Code. SECTION 625 (IFGC) REFRIGERATORS 625.1 General. Refrigerators shall be tested in accordance with ANSI Z21 19/CSA 1 4 and shall be installed in accor- dance with the manufacturer's instructions Refrigerators shall be provided with adequate clearances for ventilation at the top and back, and shall be installed in accordance with the manufacturer's instructions If such instructions are not available, not less than 2 inches (51 mm) shall be provided between the back of the refrigerator and the wall and not less than 12 inches (305 mm) above the top SECTION 626 (IFGC) GAS -FIRED TOILETS 626.1 General. Gas -fired toilets shall be tested in accordance with ANSI Z21 61 and installed in accordance with the man- ufacturer's instructions 626.2 Clearance. A gas -fired toilet shall be installed in accordance with its listing and the manufacturer's mstruc- tions, provided that the clearance shall in any case be suffi- cient to afford ready access for use, cleanout and necessary servicing SECTION 627 (IFGC) AIR-CONDITIONING APPLIANCES 627.1 General. Gas -fired au -conditioning appliances shall be tested in accordance with ANSI Z21 40 1/CGA 2 91 or ANSI Z21 40 2/CGA 2 92 and shall be installed in accordance with the manufacturer's instructions 627.2 Independent piping. Gas piping serving heating appli- ances shall be permitted to also serve cooling appliances where such heating and cooling appliances cannot be oper- ated simultaneously (see Section 402) 627.3 Connection of gas engine -powered air conditioners. To protect against the effects of normal vibration in service, gas engines shall not be rigidly connected to the gas supply piping. 130 2018 INTERNATIONAL FUEL GAS CODE® firi1 I UER CopyngbtOo2.017 ICC ALL RIGHTS RESERVED AwLDd by H®Ih¢ Van DmA(Rvdme Oo,dA od om),(Qty of FRmdNmod)O[do,N=b6xlo08170S601JM 15. ZMO oc 51 AM (GET) mt to S I ( 1, Ag,'^Rt, ICC No otths TAodomoo. m AtOy odomo,o by any Ot Party o[ AAmboemd,Oo[vsd Mgleu ooly o,and Nyodwg GMIRISAd ANY VNAVTHO OLDER REPROD ,,MN OR D ISIRIEVTION IS VIOLATION OP THE FEDERAL COPYRIGHT 11 AND THE LICENSE AGREEMENT, AND REJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER SPECIFIC APPLIANCES 627.4 Clearances for indoor installation. Air-conditioning appliances installed in rooms other than alcoves and closets shall be installed with clearances not less than those specified in Section 308 3 except that air-conditioning appliances listed for installation at lesser clearances than those specified in Section 308 3 shall be permitted to be installed in accordance with such listing and the manufacturer's instructions and air- conditioning appliances listed for installation at greater clear- ances than those specified in Section 308 3 shall be installed in accordance with such listing and the manufacturer's instructions Air-conditioning appliances installed in rooms other than alcoves and closets shall be permitted to be installed with reduced clearances to combustible matenal, provided that the combustible matenal is protected in accordance with Table 3082 627.5 Alcove and closet installation. Air-conditioning appli- ances installed in spaces such as alcoves and closets shall be specifically listed for such installation and installed in accor- dance with the terms of such listing The installation clear- ances for au -conditioning appliances in alcoves and closets shall not be reduced by the protection methods described in Table 308 2 627.6 Installation. Air-conditioning appliances shall be installed in accordance with the manufacturer's instructions Unless the appliance is listed for installation on a combustible surface such as a floor or roof, or unless the surface is pro- tected in an approved manner, the appliance shall be installed on a surface of noncombustible construction with noncombus- tible matenal and surface finish, and combustible matenal shall not be against the underside thereof 627.7 Plenums and air ducts. A plenum supplied as a part of the au -conditioning appliance shall be installed in accor- dance with the appliance manufacturer's instructions Where a plenum is not supplied with the appliance, such plenum shall be installed in accordance with the fabrication and installation instructions provided by the plenum and appli- ance manufacturer The method of connecting supply and return ducts shall facilitate proper circulation of au Where the air-conditioning appliance is installed within a space separated from the spaces served by the appliance, the air circulated by the appliance shall be conveyed by ducts that are sealed to the casing of the appliance and that separate the circulating au from the combustion and ventilation air 627.8 Refrigeration coils. A refrigeration coil shall not be installed in conjunction with a forced -air furnace where cir- culation of cooled air is provided by the furnace blower, unless the blower has sufficient capacity to overcome the external static resistance unposed by the duct system and cooling coil at the air throughput necessary for heating or cooling, whichever is greater Furnaces shall not be located upstream from cooling units, unless the cooling unit is designed or equipped so as not to develop excessive tempera- ture or pressure Refrigeration coils shall be installed in paral- lel with or on the downstream side of central furnaces to avoid condensation in the heating element, unless the furnace has been specifically listed for downstream installation With a parallel flow arrangement, the dampers or other means used to control flow of air shall be sufficiently tight to prevent any circulation of cooled air through the furnace Means shall be provided for disposal of condensate and to prevent dripping of condensate onto the heating element 627.9 Cooling units used with heating boilers. Boilers, where used in conjunction with refrigeration systems, shall be installed so that the chilled medium is piped in parallel with the heating boiler with appropriate valves to prevent the chilled medium from entering the heating boiler Where hot water heating boilers are connected to heating coils located in air -handling units where they might be exposed to refriger- ated air circulation, such boiler piping systems shall be equipped with flow control valves or other automatic means to prevent gravity circulation of the boiler water during the cooling cycle 627.10 Switches in electrical supply line. Means for mter- ruptmg the electrical supply to the air-conditioning appliance and to its associated cooling tower (if supplied and installed in a location remote from the au conditioner) shall be pro- vided within sight of and not over 50 feet (15 240 mm) from the air conditioner and cooling tower SECTION 628 (IFGC) ILLUMINATING APPLIANCES 628.1 General. Illuminating appliances shall be tested in accordance with ANSI Z21 42 and shall be installed in accor- dance with the manufacturer's instructions 628.2 Mounting on buildings. Illuminating appliances designed for wall or ceiling mounting shall be securely attached to substantial structures in such a manner that they are not dependent on the gas piping for support 628.3 Mounting on posts. Illuminating appliances designed for post mounting shall be securely and rigidly attached to a post Posts shall be rigidly mounted The strength and rigidity of posts greater than 3 feet (914 mm) in height shall be at least equivalent to that of a 2'/z inch -diameter (64 mm) post constructed of 0 064-inch-thick (1 6-mm) steel or a 1-inch (25 4 mm) Schedule 40 steel pipe Posts 3 feet (914 mm) or less in height shall not be smaller than a'/q inch (19 1 mm) Schedule 40 steel pipe Dram openings shall be provided near the base of posts where there is a possibility of water collect- ing inside them 628.4 Appliance pressure regulators. Where an appliance pressure regulator is not supplied with an illumnating appli- ance and the service line is not equipped with a service pres- sure regulator, an appliance pressure regulator shall be installed in the line to the illuminating appliance For multi- ple installations, one regulator of adequate capacity shall be permitted to serve more than one illuminating appliance SECTION 629 (IFGC) SMALL CERAMIC KILNS 629.1 General. Kilns shall be installed in accordance with the manufacturer's instructions and the provisions of this code Kilns shall comply with Section 301 3 2018 INTERNAT10NAL FUEL GAS CODE® 131 I I 1 I CALFIEIL @ 2017 ICC ALL RIGHTS RESERVED A—LDd by H®Ih¢ Van Dme(Rv dme pooch od om),(Qty of FRmdNmod)O[do, Nomb6xlo08170S601JM 15. ZMO oc 51 AM (PET) t to ( Lie Affiee^® Rt, ICC No fwN¢[TAodomoo.m AtO,Pepeodomo- by any Ot Party o, Axmboemdm6o d Mglo—ody mpyncg and Nyodwg LARISAd ANY VNAVTHO RIVER REICLA VCTION OR DISIRIBITTO N IS A VIOLATION OF THE FEDERAL COPYRIGHT ACT AND THE LICENSE AGREEMENT. AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER SPECIFIC APPLIANCES SECTION 630 (IFGC) INFRARED RADIANT HEATERS 630.1 General. Infrared radiant heaters shall be tested in accordance with ANSI Z83 19 or Z83 20 and shall be installed in accordance with the manufacturer's instructions 630.2 Support. Infrared radiant heaters shall be fixed in a position independent of gas and electric supply lines Hangers and brackets shall be of noncombustible material 630.3 (IFGS) Combustion and ventilation air. Where unvented infrared heaters are installed, natural or mechanical means shall provide outdoor ventilation air at a rate of not less than 4 cfm per 1,000 Btu/h (038 m'/mrn/kW) of the aggregate input rating of all such heaters installed in the space Exhaust openings for removing flue products shall be above the level of the heaters 630.4 (IFGS) Installation in commercial garages and air- craft hangars. Overhead infrared heaters installed in garages for more than three motor vehicles or in aircraft hangars shall be installed in accordance with Sections 305 9, 305 10 and 305 11 SECTION 631 (IFGC) BOILERS 631.1 Standards. Boilers shall be listed in accordance with the requirements of ANSI Z21 13/CSA 49 or UL 795 If applicable, the boiler shall be designed and constructed in accordance with the requirements of ASME CSD-1 and as applicable, the ASME Boiler and Pressure Vessel Code, Sec- tions I, II, IV, V and IX and NFPA 85 631.2 Installation. In addition to the requirements of this code, the installation of boilers shall be in accordance with the manufacturer's instructions and the International Mechanical Code Operating instructions of a permanent type shall be attached to the boiler Boilers shall have all controls set, adjusted and tested by the installer A complete control diagram together with complete boiler operating instructions shall be furnished by the installer The manufacturer's rating data and the nameplate shall be attached to the boiler 631.3 Clearance to combustible materials. Clearances to combustible materials shall be in accordance with Section 3084 SECTION 632 (IFGC) EQUIPMENT INSTALLED IN EXISTING UNLISTED BOILERS 632.1 General. Gas equipment installed in existing unlisted boilers shall comply with Section 631 1 and shall be installed in accordance with the manufacturer's instructions and the International Mechanical Code SECTION 633 (IFGC) STATIONARY FUEL -CELL POWER SYSTEMS [F] 633.1 General. Stationary fuel -cell power systems hav- ing a power output not exceeding 10 MW shall be tested in accordance with ANSI CSA America FC 1 and shall be installed in accordance with the manufacturer's instructions, NFPA 853, the International Building Code and the Intema- tional Fire Code SECTION 634 (IFGS) CHIMNEY DAMPER OPENING AREA 634.1 Free opening area of chimney dampers. Where an unlisted decorative appliance for installation in a vented fire- place is installed, the fireplace damper shall have a perma- nent free opening equal to or greater than specified in Table 634 1 SECTION 635 (IFGC) GASEOUS HYDROGEN SYSTEMS 635.1 Installation. The installation of gaseous hydrogen sys- tems shall be in accordance with the applicable requirements of this code, the International Fire Code and the Intema- tional Building Code SECTION 636 (IFGC) OUTDOOR DECORATIVE APPLIANCES 636.1 General. Permanently fixed -in -place outdoor decora- tive appliances shall be tested in accordance with ANSI Z21 97 and shall be installed in accordance with the manufac- turer's instructions TABLE 634.1 FREE OPENING AREA OF CHIMNEY DAMPER FOR VENTING FLUE GASES FROM UNLISTED DECORATIVE APPLIANCES FOR INSTALLATION IN VENTED FIREPLACES CHIMNEY HEIGHT (feet) MINIMUM PERMANENT FREE OPENING (square inches)' 8 13 20 129 139 51 64 Appliance input rating (Btu per hour) 6 7,800 14,000 23,200 34,000 46,400 62,400 80,000 8 8,400 15,200 25,200 37,000 50,400 68,000 86,000 10 9,000 16,800 27,600 40,400 55,800 74,400 96,400 15 9,800 18,200 30,200 44,600 62,400 84,000 108,800 20 10,600 20,200 32,600 50,400 68,400 94,000 122,200 30 11,200 21,600 36,600 55,200 76,800 105,800 138,600 For SI 1 inch = 25 4 mm, 1 foot= 304 8 mm, 1 square inch = 645 16 m', 1 British thermal unit per hour = 0 2931 W a The first six minimum permanent free openings (8 to 51 square inches) correspond approximately to the cross -sectional areas of chimneys having diameters of 3 through 8 inches, respectively The 64-square-inch opening corresponds to the cross -sectional area of standard 8-inch by 8-inch chimney the 132 2018 INTERNATIONAL FUEL GAS CODE® i ( firi1 I UERCopyright Oo 2.017 ICC ALL RIGHTS RESERVED AwLDd by H®Ih¢ Van Dme(Rv dme pooch od om),(Qty of FRmdNmod)O[do, Nomb6xlo08170S601JM 15, ZMO oc 51 AM (PET) mt to I1, xAg,e^ '^Rt, ICC No otths TAodomoam Athsodomo,o by any Ot Party o[ Axmboemdmho[vsd Mgle ooly o,and Nyodwg L-IRISed ANY VNAVTHO OLDER REPROD VCIION OR D ISIRIEVTION IS VIOLATION OP THE FEDERAL COPYRIGHT 11 AND THE LICENSE AGREEMEoff . AND REJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER CHAPTER 7 GASEOUS HYDROGEN SYSTEMS User note: About this chapter. Chapter 7 is specific to hydrogen used as a fuel or feedstock for appliances, processes and fuel cells Requ/rements address hydrogen generation, storage, dispensing, piping, location, operation and maintenance of hydrogen generation, storage and distribution systems SECTION 701 (IFGC) GENERAL 701.1 Scope. The installation of gaseous hydrogen systems shall comply with this chapter and Chapters 53 and 58 of the International Fire Code Compressed gases shall also comply with Chapter 50 of the International Fire Code for general requirements 701.2 Permits. Permits shall be required as set forth in Sec- tion 106 and as required by the International Fire Code SECTION 702 (IFGC) GENERAL DEFINITIONS 702.1 Definitions. The following words and terms shall, for the purposes of this chapter and as used elsewhere in this code, have the meanings shown herein [I] GASEOUS HYDROGEN SYSTEM. An assembly of piping, devices and apparatus designed to generate, store, contain, distribute or transport a nontoxic, gaseous hydrogen containing mixture having at least 95-percent hydrogen gas by volume and not more than 1-percent oxygen by volume Gaseous hydrogen systems consist of items such as com- pressed gas containers, reactors and appurtenances, including pressure regulators, pressure relief devices, manifolds, pumps, compressors and interconnecting piping and tubing and controls [I] HYDROGEN FUEL -GAS ROOM. A room or space that is intended exclusively to house a gaseous hydrogen sys- tem HYDROGEN -GENERATING APPLIANCE. A self-con- tained package or factory -matched packages of integrated systems for generating gaseous hydrogen Hydrogen -generat- ing appliances utilize electrolysis, reformation, chemical or other processes to generate hydrogen SECTION 703 (IFGC) GENERAL REQUIREMENTS 703.1 Hydrogen -generating and refueling operations. Hydrogen -generating and refueling appliances shall be installed and located in accordance with their listing and the manufacturer's instructions Exhaust ventilation shall be required in public garages, private garages, repair garages, automotive motor fuel -dispensing facilities and parking garages that contain hydrogen -generating appliances or refu- eling systems in accordance with NFPA 2 For the purpose of this section, rooms or spaces that are not part of the living space of a dwelling unit and that communicate directly with a private garage through openings shall be considered to be part of the private garage [1] 703.2 Containers, cylinders and tanks. Compressed gas 4m containers, cylinders and tanks shall comply with Chapters 53 and 58 of the International Fire Code [I] 703.2.1 Limitations for indoor storage and use. Flammable gas cylinders in occupancies regulated by the International Residential Code shall not exceed 250 cubic feet (7 1 m') atnorm al temperature and pressure (NTP) [I] 703.2.2 Design and construction. Compressed gas containers, cylinders and tanks shall be designed, con- structed and tested in accordance with Chapter 50 of the International Fire Code, ASME Boiler and Pressure Ves- sel Code (Section VIII) or DOTn 49 CFR, Parts 100-180 [1] 703.3 Pressure relief devices. Pressure relief devices shall be provided in accordance with Sections 703 3 1 through 703 3 8 Pressure relief devices shall be sized and selected in accordance with CGA S-1 1, CGA S-1 2 and CGA S-1 3 [1] 703.3.1 Valves between pressure relief devices and containers. Valves including shutoffs, check valves and other mechanical restrictions shall not be installed between the pressure relief device and container being protected by the relief device Exception: A locked -open shutoff valve on containers equipped with multiple pressure relief device installa- tions where the arrangement of the valves provides the full required flow through the minimum number of required relief devices at all tunes [I] 703.3.2 Installation. Valves and other mechanical restrictions shall not be located between the pressure relief device and the point of release to the atmosphere [1] 703.3.3 Containers. Containers shall be provided with pressure relief devices in accordance with the ASME Boiler and Pressure Vessel Code (Section VIII), DOTn 49 CFR, Parts 100-180 and Section 703 3 7 [1] 703.3.4 Vessels other than containers. Vessels other than containers shall be protected with pressure relief devices in accordance with the ASME Boiler and Pressure Vessel Code (Section VIII), or DOTn 49 CFR, Parts 100- 180 [I] 703.3.5 Sizing. Pressure relief devices shall be sized in accordance with the specifications to which the container 2018 INTERNAT10NAL FUEL GAS CODE" 133 I I 1 I Co LFIEIL @ 2017 ICC ALL RIGHTS RESERVED Awned by H®Ih¢ Van Dme(Rv dme Oo,dv od om),(Qtyof PnmdNmod)O,do,N=b¢x1 008170S601 JM 15, Z.mo oc 51 AM (PET) rt,—tto ( LEA Ag,, ^®'^Rt, ICC NofwN¢[TAodomo,,m AtO, goodomo- by any Ot Party o, AAmboemd,Oo[vsd Mglo—ody oTyncg and Nyodwg L,oIRb¢Ad ANY VNAVTHO RIVER REICLA VCTION OR DISIRIBITTO N IS A VIOLATION OF THE FEDERAL COPYRIGHT ACT AND THE LICENSE AGREEMENT. AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER GASEOUS HYDROGEN SYSTEMS was fabricated The relief device shall be sized to prevent the maximum design pressure of the container or system from being exceeded [E] 703.3.6 Protection. Pressure relief devices and any associated vent piping shall be designed, installed and located so that their operation will not be affected by water or other debris accumulating inside the vent or obstructing the vent [E] 703.3.7 Access. Pressure relief devices shall be located such that they are provided with ready access for inspec- tion and repair [E] 703.3.8 Configuration. Pressure relief devices shall be arranged to discharge unobstructed in accordance with Section 2309 of the International Fire Code Discharge shall be directed to the outdoors in such a manner as to prevent impingement of escaping gas on personnel, con- tainers, equipment and adjacent structures and to prevent introduction of escaping gas into enclosed spaces The dis- charge shall not term mate under eaves or canopies Exception: This section shall not apply to DOTn-spec- ified containers with an internal volume of 2 cubic feet (0 057 m') or less [E] 703.4 Venting. Relief device vents shall be terminated in an approved location in accordance with Section 2309 of the International Fire Code [E] 703.5 Security. Compressed gas containers, cylinders, tanks and systems shall be secured against accidental dis- lodgement in accordance with Chapter 53 of the International Fire Code [E] 703.6 Electrical wiring and equipment. Electrical wir- ing and equipment shall comply with NITA 70 SECTION 704 (IFGC) PIPING, USE AND HANDLING 704.1 Applicability. Use and handling of containers, cylin- ders, tanks and hydrogen gas systems shall comply with this section Gaseous hydrogen systems, equipment and machm- ery shall be listed or approved 704.1.1 Controls. Compressed gas system controls shall be designed to prevent materials from entering or leaving process or reaction systems at other than the intended time, rate or path Automatic controls shall be designed to be fall safe in accordance with accepted engineering prac- tice 704.1.2 Piping systems. Piping, tubing, valves and fit- tings conveying gaseous hydrogen shall be designed and installed in accordance with Sections 7041 2 1 through 704 1 2 5 1, Chapter 50 of the International Fire Code, and ASME B31 12 Cast-iron pipe, valves and fittings shall not be used 704.1.2.1 Sizing. Gaseous hydrogen piping shall be sized in accordance with approved engineering methods 704.1.2.2 Identification of hydrogen piping systems. Hydrogen piping systems shall be marked in accor- dance with ANSI A13 1 Markings used for piping sys- tems shall consist of the name of the contents and shall include a direction -of -flow arrow Markings shall be provided at all of the following locations 1 At each valve 2 At wall, floor and ceiling penetrations 3 At each change of direction 4 At intervals not exceeding 20 feet (6096 mm) 704.1.2.3 Piping design and construction. Piping and tubing materials shall be 300 series stainless steel or materials listed or approved for hydrogen service and the use intended through the full range of operating conditions to which they will be subjected Piping sys- tems shall be designed and constructed to provide allowance for expansion, contraction, vibration, settle- ment and fire exposure 704.1.2.3.1 Prohibited locations. Piping shall not be installed in or through a circulating air duct, clothes chute, clumney or gas vent, ventilating duct, dumbwaiter, or elevator shaft Piping shall not be concealed or covered by the surface of any wall, floor or ceiling 704.1.2.3.2 Interior piping. Except for through penetrations, piping located inside of buildings shall be installed in exposed locations and provided with ready access for visual inspection 704.1.2.3.3 Underground piping. Underground piping, including joints and fittings, shall be pro- tected from corrosion and installed in accordance with approved engineered methods 704.1.2.3.4 Piping through foundation wall. Underground piping shall not penetrate the outer foundation or basement wall of a building 704.1.2.3.5 Protection against physical damage. Where piping other than stainless steel piping, stain- less steel tubing or black steel is installed through holes or notches in wood studs, joists, rafters or sim- ilar members less than C/z inches (38 mm) from the nearest edge of the member, the pipe shall be pro- tected by shield plates Shield plates shall be a mim- mum of V16 inch -thick (1 6 mm) steel, shall cover the area of the pipe where the member is notched or bored and shall extend a minimum of 4 inches (102 mm) above sole plates, below top plates and to each side of a stud, joist or rafter 704.1.2.3.6 Piping outdoors. Piping installed above ground, outdoors, shall be securely supported and located where it will be protected from physical damage Piping passing through an exterior wall of a building shall be encased in a protective pipe sleeve The annular space between the piping and the sleeve shall be sealed from the inside such that the sleeve is ventilated to the outdoors Where passing through an exterior wall of a building, the piping shall be pro- tected against corrosion by coating or wrapping with an mert material Below -ground piping shall be pro- tected against corrosion 134 2018 INTERNATIONAL FUEL GAS CODE" firi1 I UER Copynght Oo 2.017 ICC ALL RIGHTS RESERVED A—LDd by H®Ih¢ Van Dme(Rv dme Oo,dv od om),(Dtyof PnmdNmod)O,do,N=b¢x1 008170S601 JM 15, Z.mo oc 51 AM (GET) Mt,mmtto S I ( 1, Ag,'^Rt, ICC No otths TAodomoo. m AtOy goodomo- by any Ot Party o, AAmboema,Ooossd Mgle —ooly oTymg and Nyodwg TMIRISAd ANY VNAVTHO OLDER REPROD ,,MN OR D ISIRIEVTION IS VIOLATION OP THE FEDERAL COPYRIGHT 11 AND THE LICENSE AGREEMENT, AND REJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER GASEOUS HYDROGEN SYSTEMS 704.1.2.3.7 Settlement. Piping passing through con- crete or masonry walls shall be protected against dif- ferential settlement 704.1.2.4 Joints. Joints in piping and tubing in hydro- gen service shall be listed as complying with ASME B31 3 to include the use of welded, brazed, flared, socket, slip and compression fittings Gaskets and seal- ants used in hydrogen service shall be listed as comply - mg with ASME B31 12 Threaded and flanged connections shall not be used in areas other than hydro- gen cutoff rooms and outdoors 704.1.2.4.1 Brazed joints. Brazing alloys shall have a melting point greater than 1,000'F (538'C) 704.1.2.4.2 Electrical continuity. Mechanical joints shall maintain electrical continuity through the joint or a bonding jumper shall be installed around the joint 704.1.2.5 Valves and piping components. Valves, regulators and piping components shall be listed or approved for hydrogen service, shall be provided with access and shall be designed and constructed to with- stand the maximum pressure to which such components will be subjected 704.1.2.5.1 Shutoff valves on storage containers and tanks. Shutoff valves shall be provided on all storage container and tank connections except for pressure relief devices Shutoff valves shall be pro- vided with ready access 704.2 Upright use. Compressed gas containers, cylinders and tanks, except those with a water volume less than 1 3 gallons (5 L) and those designed for use in a horizontal position, shall be used in an upright position with the valve end up An upright position shall include conditions where the container, cylinder or tank axis is inclined as much as 45 degrees (0 79 rad) from the vertical 704.3 Material -specific regulations. In addition to the requirements of this section, indoor and outdoor use of hydro- gen compressed gas shall comply with the material -specific provisions of Chapters 53 and 58 of the International Fire Code 704.4 Handling. The handling of compressed gas containers, cylinders and tanks shall comply with Chapter 50 of the International Fire Code SECTION 705 (IFGC) TESTING OF HYDROGEN PIPING SYSTEMS 705.1 General. Prior to acceptance and initial operation, all piping installations shall be inspected and pressure tested to determme that the materials, design fabrication and installa- tion practices comply with the requirements of this code 705.2 Inspections. Inspections shall consist of a visual exam- ination of the entire piping system installation and a pressure test Hydrogen piping systems shall be inspected in accor- dance with this code Inspection methods such as outlined in ASME B31 12 shall be permitted where specified by the design engineer and approved by the code official Inspec- tions shall be conducted or verified by the code official prior to system operation 705.3 Pressure tests. A hydrostatic or pneumatic leak test shall be performed Testing of hydrogen piping systems shall utilize testing procedures identified in ASME B31 12 or other approved methods, provided that the testing is performed in accordance with the minimum provisions specified in Sec- tions 705 3 1 through 705 4 1 705.3.1 Hydrostatic leak tests. The hydrostatic test pres- sure shall be not less than one -and -one-half times the max- imum working pressure, and not less than 100 psig (689 5 kPa gauge) 705.3.2 Pneumatic leak tests. The pneumatic test pres- sure shall be not less than one -and -one-half times the max- imum working pressure for systems less than 125 psig (862 kPa gauge) and not less than 5 psig (34 5 kPa gauge), whichever is greater For working pressures at or above 125 psig (862 kPa gauge), the pneumatic test pressure shall be not less than 110 percent of the maximum work- ing pressure 705.3.3 Test limits. Where the test pressure exceeds 125 psig (862 kPa gauge), the test pressure shall not exceed a value that produces hoop stress in the piping greater than 50 percent of the specified minimum yield strength of the pipe 705.3.4 Test medium. DeJonized water shall be utilized to perform hydrostatic pressure testing and shall be obtained from a potable source The medium utilized to perform pneumatic pressure testing shall be air, nitrogen, carbon dioxide or an men gas, oxygen shall not be used 705.3.5 Test duration. The minimum test duration shall be '/ hour The test duration shall be not less than hour for each 500 cubic feet (14 2 m') of pipe volume or frac- tion thereof For piping systems having a volume of more than 24,000 cubic feet (680 m'), the duration of the test shall not be required to exceed 24 hours The test pressure required in Sections 705 3 1 and 705 3 2 shall be main- tained for the entire duration of the test 705.3.6 Test gauges. Gauges used for testing shall be as follows 1 Tests requiring a pressure of 10 psig (68 95 kPa gauge) or less shall utilize a testing gauge having increments of 0 10 psi (0 6895 kPa) or less 2 Tests requiring a pressure greater than 10 psig (68 98 kPa gauge) but less than or equal to 100 psig (689 5 kPa gauge) shall utilize a testing gauge hav- ing increments of 1 psi (6 895 kPa) or less 3 Tests requiring a pressure greater than 100 psig (689 5 kPa gauge) shall utilize a testing gauge hav- ing increments of 2 psi (13 79 kPa) or less Exception: Measuring devices having an equiva- lent level of accuracy and resolution shall be per- mitted where specified by the design engineer and approved by the code official 705.3.7 Test preparation. Pipe joints, including welds, shall be left exposed for examination during the test 2018 INTERNAT10NAL FUEL GAS CODE" 135 I I1 I CoLFIEILOo2.017 ICC ALL RIGHTS RESERVED Awned by H®Ih¢ Van DmA(Rvdme Oo,dA od om),(Dty of FRmdNmod)O[do,N=b6xlo08170S601JM 15. ZMO oc 51 AM(PET)puArvant to ( LEA Affiee^® Rt, ICC No fwN¢[TAodomoo.m AtO,«odomo- by any Ot Party o, AAmboemd,Oo[vsd Mglo—ody mpyncg and Nyodwg L,oIRb¢Ad ANY VNAVTHO RIVER REICLA VCTION OR DISIRIBITTO N IS A VIOLATION OF THE FEDERAL COPYRIGHT ACT AND THE LICENSE AGREEMENT. AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER GASEOUS HYDROGEN SYSTEMS 705.3.7.1 Expansion joints. Expansion joints shall be provided with temporary restraints, if required, for the additional thrust load under test 705.3.7.2 Equipment disconnection. Where the piping system is connected to appliances, equipment or com- ponents designed for operating pressures of less than the test pressure, such appliances, equipment and com- ponents shall be isolated from the piping system by dis- connecting them and capping the outlet(s) 705.3.7.3 Equipment isolation. Where the piping sys- tem is connected to appliances, equipment or compo- nents designed for operating pressures equal to or greater than the test pressure, such appliances, equip- ment and components shall be isolated from the piping system by closing the individual appliance, equipment or component shutoff valve(s) 705.4 Detection of leaks and defects. The piping system shall withstand the test pressure specified for the test duration specified without showing any evidence of leakage or other defects Any reduction of test pressures as indicated by pres- sure gauges shall indicate a leak within the system Piping systems shall not be approved except where this reduction in pressure is attributed to some other cause 705.4.1 Corrections. Where leakage or other defects are identified, the affected portions of the piping system shall be repaired and retested 705.5 Purging of gaseous hydrogen piping systems. Purg- ing shall comply with Sections 705 5 1 through 705 5 4 705.5.1 Removal from service. Where piping is to be opened for servicing, addition or modification, the section to be worked on shall be isolated from the supply at the nearest convenient point and the line pressure vented to the outdoors The remaining gas in this section of pipe shall be displaced with an inert gas 705.5.2 Placing in operation. Prior to placing the system into operation, the air in the piping system shall be dis- placed with inert gas The inert gas flow shall be continued without interruption until the vented gas is free of air The inert gas shall then be displaced with hydrogen until the vented gas is free of inert gas The point of discharge shall not be left unattended during purging After purging, the vent opening shall be closed 705.5.3 Discharge of purged gases. The open end of pip- ing systems being purged shall not discharge into confined spaces or areas where there are sources of ignition except where precautions are taken to perform this operation in a safe manner by ventilation of the space, control of purging rate and elimination of all hazardous conditions 705.5.3.1 Vent pipe outlets for purging. Vent pipe outlets for purging shall be located such that the inert gas and fuel gas is released outdoors and not less than 8 feet (2438 mm) above the adjacent ground level Gases shall be discharged upward or horizontally away from adjacent walls to assist in dispersion Vent outlets shall be located such that the gas will not be trapped by eaves or other obstructions and shall be at least 5 feet (1524 mm) from building openings and lot lines of properties that can be built on 705.5.4 Placing equipment in operation. After the piping has been placed in operation, all equipment shall be purged in accordance with Section 707 2 and then placed in operation, as necessary SECTION 706 (IFGC) LOCATION OF GASEOUS HYDROGEN SYSTEMS [F] 706.1 General. The location and installation of gaseous hydrogen systems shall be in accordance with Sections 706 2 and 706 3 Exception: Stationary fuel -cell power plants in accor- dance with Section 633 [F] 706.2 Indoor gaseous hydrogen systems. Gaseous hydro- gen systems shall be located in indoor rooms or areas con- structed in accordance with this code, the International Building Code, the Intemahonal Mechamcal Code or NFPA 2 [F] 706.3 Outdoor gaseous hydrogen systems. Gaseous hydrogen systems shall be located outdoors in accordance with Section 2309 3 1 1 of the International Fire Code SECTION 707 (IFGC) OPERATION AND MAINTENANCE OF GASEOUS HYDROGEN SYSTEMS [F] 707.1 Maintenance. Gaseous hydrogen systems and detection devices shall be maintained in accordance with the International Fire Code and the manufacturer's installation instructions [F] 707.2 Purging. Purging of gaseous hydrogen systems, other than piping systems purged in accordance with Section 705 5, shall be in accordance with Sections 2309 6 and 2309 6 1 of the International Fire Code or in accordance with the system manufacturer's instructions SECTION 708 (IFGC) DESIGN OF LIQUEFIED HYDROGEN SYSTEMS ASSOCIATED WITH HYDROGEN VAPORIZATION OPERATIONS [F] 708.1 General. The design of liquefied hydrogen systems shall comply with Chapter 55 of the International Fire Code 136 2018 INTERNATIONAL FUEL GAS CODE" firi1 I UER Copynght Oo 2.017 ICC ALL RIGHTS RESERVED A—LDd by H®Ih¢ Van DmA(Rv dme Oo,dA od om),(Dty of FRmdNmod) O[do, N=b,, xl 008170S601 JM 15, m0 0651 AM (GET) mt to S I ( 1, Ag,'^Rt, ICC No otths TAodomoo. m AtOy odomo- by any Ot Party o[ AAmboemd,Oo[vsd Mgle —ooly o,and Nyodwg GMIRISAd ANY VNAVTHO OLDER REPROD ,,MN OR D ISIRIEVTION IS VIOLATION OP THE FEDERAL COPYRIGHT 11 AND THE LICENSE AGREEMENT, AND REJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER IFGC/IFGS CHAPTER 8 REFERENCED STANDARDS User note: About this chapter., Chapter 8 lists the full tide, edition year and address of the promulgator for all standards that are referenced in the code. The section numbers in which the standards are referenced are also listed. This chapter lists the standards that are referenced in various sections of this document The standards are listed herein by the promulgating agency of the standard, the standard identification, the effective date and tide, and the section or sections of this document that reference the standard. The application of the referenced standards shall be as specified in Section 102.8. ANSI Amencan National Standards Institute 25 West 43rd Street 4th Floor New York, NY 10036 ANSI A13.1-2015: Scheme for the Identification of Piping Systems 704122 ANSI FC 1-2012: Stationery Fuel Cell Power Systems 633 1 ANSI NGV 5.1-2015: Residential Fueling Appliances 41341 LC 1/CSA 6.26-2013: Fuel Gas Piping Systems Using Corrugated Stainless Steel Tubing (CSST) 40355 ANSI LC-4/CSA 6.32-2012: Press -connect Metallic Fittings for Use in Fuel Gas Distribution Systems 403 10 1, 403 10 2, 403 10 3 Z21.1-2010: Household Cooking Gas Appliances 623 1 Z21.5.1/CSA 7.1-2014: Gas Clothes Dryers —Volume I —Type 1 Clothes Dryers 613 1 Z21.5.2/CSA 7.2-2014: Gas Clothes Dryers —Volume II —Type 2 Clothes Dryers 613 1,6143 Z21.8-94 (R2002): Installation of Domestic Gas Conversion Burners 619 1 Z21.10.1/CSA 4.1-2012: Gas Water Heaters —Volume I —Storage, Water Heaters with Input Ratings of 75,000 Btu per Hour or Less 624 1 Z21.10.3/CSA 4.3-2011: Gas Water Heaters —Volume III —Storage, Water Heaters with Input Ratings above 75,000 Btu per Hour, Circulating and Instantaneous 624 1 Z21.11.2-2011: Gas -fired Room Heaters —Volume II—Unvented Room Heaters 621 1 Z21.13/CSA 4.9-2011: Gas -fired Low-pressure Steam and Hot Water Boilers 631 1 Z21.15/CSA 9.1-2009: Manually Operated Gas Valves for Appliances, Appliance Connector Valves and Hose End Valves Table 409 1 1 Z21.19/CSA 1.4-02(R2007): Refrigerators Using Gas (R1999) Fuel 625 1 Z21.24/CSA 6.10-2006: Connectors for Gas Appliances 411 1, 411 3 Z21.40.1/CGA 2.91-1996 (R2011): Gas -tired Heat Activated Air Conditioning and Heat Pump Appliances 627 1 Z21.40.2/CGA 2.92-1996 (R2011): Gas -tired Work Activated Air Conditioning and Heat Pump Appliances (Internal Combustion) 627 1 Z21.42-2014: Gas -fired Illuminating Appliances 6281 2018 INTERNATIONAL FUEL GAS CODE® 137 I " ' CITFIghtOo 2017 ICC ALL RIGHTS RESERVED Awned by H®Ih¢ Van DmT(hv dme Oo,d—od om),(Qty of IF—d ood)O,do,N=bT,*10081vwS6o1JM 15. ZMO oc 51 AM (PET) rt,—tto ( L,—, Ag,TTxom Rt, ICC No FLths[TAodomoo.m AtO,,goodomo- by anytlt Party o, Am,boem mffio,vsd Mgle —ooly oTymg and Nyodwg T,oIRbAd ANY VNAVTHO RIVER REICLA VCTION OR DISIRIBITTO N IS A VIOLATION OF THE FEDERAL COPYRIGHT ACT AND THE LICENSE AGREEMENT. AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER REFERENCED STANDARDS ANSI -continued Z21.47/CSA 2.3-2012: Gas -fired Central Furnaces 6181 Z21.50/CSA 2.22-2016: Vented Gas Fireplaces 604 1 Z21.54-2009: Gas Hose Connectors for Portable Outdoor Gas -fired Appliances 411 1 Z21.56/CSA 4.7-2017: Gas -fired Pool Heaters 6171 Z21.58/CSA 1.6-2013: Outdoor Cooking Gas Appliances 623 1 Z21.60/CSA 2.26-2012: Decorative Gas Appliances for Installation in Solid -fuel Burning Fireplaces 602 1 Z21.61-1983 (R2004): Gas -fired Toilets 626 1 Z21.69/CSA 6.16-2009: Connectors for Movable Gas Appliances 41111, 41114 Z21.75/CSA 6.27-2007: Connectors for Outdoor Gas Appliances and Manufactured Homes 411 1, 411 2 Z21.80/CSA 6.22-2011: Line Pressure Regulators 4101 Z21.84-2012: Manually Lighted, Natural Gas Decorative Gas Appliances for Installation in Solid Fuel Burning Fireplaces 602 1,6022 Z21.86/CSA 2.32-2008: Vented Gasfired Space Heating Appliances 608 1, 609 1, 622 1 Z21.88/CSA 2.33-2016: Vented Gas Fireplace Heaters 605 1 Z21.91-2007: Ventless Firebox Enclosures for Gas -fired Unvented Decorative Room Heaters 621 7 1 Z21.93/CSA 6.30-2013: Excess Flow Valves for Natural and LP Gas with Pressures up to 5 psig 4104 Z21.97-2012: Outdoor Decorative Appliances 636 1 Z83.4/CSA 3.7-2012: Nonrecirculating Direct -gas -fired Industrial Air Heaters 611 1 Z83.8/CSA 2.6-2009: Gas Unit Heater, Gas Packaged Heater, Gas Utility Heaters and Gas -fired Duct Furnaces 610 1,620 1 Z83.11/CSA 1.8-2013: Gas Food Service Equipment 623 1 Z83.18-2012: Recirculating Direct Gasfired Industrial Air Heaters 6121 Z83.19-2001(R2009): Gas -fired High -intensity Infrared Heaters 630 1 Z83.20-2008: Gas -fired Low -intensity Infrared Heaters 630 1 ASME B1.20.1-2013: Pipe Threads, General Purpose (inch) 4039 B16.1-2010: Gray Iron Pipe Flanges and Flanged Fittings, Class 25, 125 and 250 403 12 1 Amencan Society of Mechamcal Engineers Two Park Avenue New York, NY 10016-5990 138 2018 INTERNATIONAL FUEL GAS CODE" CopyagRtOo 2017 ICC ALL RIGHTS RESERVED A-LDd by H®Ih¢ Van DmT(Raodme Oo,dT od om),(Qty of Ro,dNood)O[do,N=b,,*10081vwS6o1JM 15. ZMO oc 51 AM (GET) Mt,mmt to S I ( 1, Ag,e^ '^Rt, ICC No o tths TTAodomo,, oAtt y goodomo- by any Ot Party o[ ATmboemd,Oo[vsd Mgle -ooly oTymg and Nyodwg TMIRIS d ANY VNAVTHO OLDER REPROD VCIION OR D ISIRIEVTION IS VIOLATION OP THE FED REAL COPYRIGHT 11 AND THE LICENSE AGREEME NT. AND REJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER REFERENCED STANDARDS ASME—continued B16.5-2015: Pipe Flanges and Flanged Fittings: NPS '/i through NIPS 24 Metric/Inch Standard 403 122 B16.24-2016: Cast Copper Alloy Pipe Flanges and Flanged Fittings: Classes 150, 300, 600, 900, 1500 and 2500 403 123 B16.42-2016: Ductile Iron Pipe Flanges and Flanged Fittings, Classes 150 and 300 403 124 B16.47-2016: Large Diameter Steel Flanges: NPS 26 through NPS 60 Metric/Inch Standard 403 122 B16.33-2012: Manually Operated Metallic Gas Valves for Use in Gas Piping Systems up to 125 psig (Sizes'/i through 2) Table 409 1 1 B16.44-2012: Manually Operated Metallic Gas Valves for Use in Aboveground Piping Systems up to 5 psi Table 409 1 1 B31.3-2016: Process Piping 704124 B31.12-2014: Hydrogen Piping and Pipelines 704 1 2, 704 12 4, 705 2, 705 3 B36.10M—(R2015): Welded and Seamless Wrought -steel Pipe 40342 BPVC-2015: ASME Boiler & Pressure Vessel Code (2007 Edition) 6311, 70322, 70333, 70334 CSD-1-2016: Controls and Safety Devices for Automatically Fired Boilers 631 1 ASTM ASTM Intemational 100 Barr Harbor Dnve, P O Box C700 West Conshohocken, PA 19428-2959 A53/A53M-12: Specification for Pipe, Steel, Black and Hot Dipped Zinc -coated Welded and Seamless 40342 A106/A106M-14: Specification for Seamless Carbon Steel Pipe for High -temperature Service 40342 A254-12: Specification for Copper Brazed Steel Tubing 4035 1 A268-10: Standard Specification for Seamless and Welded Ferritic and Martensitic Stainless Steel Tubing for General Service 40352 A269-15: Standard Specification for Seamless and Welded Austenitic Stainless Steel Tubing for General Service 40352 A312-15: Standard Specification for Seamless, Welded and Heavily Cold Worked Austenitic Stainless Steel Pipes 40342 B88-14: Specification for Seamless Copper Water Tube 40353 B210-12: Specification for Aluminum and Aluminum -alloy Drawn Seamless Tubes 40354 B241/B241M-12e1: Specification for Aluminum and Aluminum -alloy, Seamless Pipe and Seamless Extruded Tube 40344, 40354 B280-13: Standard Specification for Seamless Copper Tube for Air -Conditioning and Refrigeration Field Service 40353 C315-07(2011): Specification for Clay Flue Liners and Chimney Pots 501 12 D2513-14e1: Specification for Polyethylene (PE) Gas Pressure Pipe, Tubing and Fittings 403 6, 403 6 1, 403 11, 404 17 2 E136-16: Standard Test Method for Behavior of Materials in a Vertical Tube Furnace at 7500C 202 2018 INTERNATIONAL FUEL GAS CODE" 139 I " ' CITFIght @ 2017 ICC ALL RIGHTS RESERVED Awned by H®Ih¢ Van DmT(Rv dme Oo,d—od om),(Qty of IF—d ood) O[do, N=b,, *1 008170S6 01 JM 15, m0 oc 51 AM (PET) Mt,—t to ( L-T AgffiTTxom Rt, ICC No fwN¢[Todomoo.m AtO, Tgoodomo- by any Ot Party oT ATmboemd,Oo[vsd Mglo—ody oTyncg and Nyodwg T,oIRb Ad ANY VNAVTHO RIVER REICLA VCTION OR DISIRIBITTO N IS A VIOLATION OF THE FEDERAL COPYRIGHT ACT AND THE LICENSE AGREEMENT. AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER REFERENCED STANDARDS ASTM-continued F1973-13e1: Standard Specification for Factory Assembled Anodeless Risers and Transition Fittings in Polyethylene (PE) and Polyamide 11 (PALL) and Polyamide 12 (PA12) Fuel Gas Distribution Systems 404 172 F2945-15: Standard Specification for Polyamide 11 Gas Pressure Pipe, Tubing and Fittings 4036 CGA Compressed Gas Association 14501 George Carter Way, Suite 103 Chantilly, VA 20151-2923 S-1.1-(2017): Pressure Relief Device Standards -Part 1-Cylinders for Compressed Gases 7033 S-1.2-(2009): Pressure Relief Device Standards -Part 2-Cargo and Portable Tanks for Compressed Gases 7033 S-1.3-(2016): Pressure Relief Device Standards -Part 3-Stationary Storage Containers for Compressed Gases 7033 CSA CSA Group 8501 East Pleasant Valley Road Cleveland, OH 44131-5516 ANSI/CSA FC 1-2014: Fuel Cell Technologies -Part 3-100; Stationary fuel cell power systems -Safety 633 1 CSA 8-93: Requirements for Gas -fired Log Lighters for Wood Burning Fireplaces 603 1 ANSI/CSANGV 5.1-2015: Residential Fueling Appliances 4134 1 DOTn U S Department of Transportation 400 Seventh St SW Washington, DC 20590 49 CFR, Parts 192.281(e) & 192.283 (b)--(2009): Transportation of Natural and Other Gas by Pipeline: Minimum Federal Safety Standards 4036 1 49 CFR-Parts 100-180 (2015): Hazardous Materials Regulations 70322, 70333, 70334 ICCInternational Code Council, Inc 500 New Jersey Ave, NW 6th Floor Washington, DC 20001 IBC-18: International Building Code® 102 2 1, 201 3, 301 10, 301 11, 301 12, 301 14, 302 1, 302 2, 305 6, 306 5 1, 306 6, 401 1 1, 412 6, 413 3, 413 3 1, 501 1, 501 3, 501 12, 501 15 4, 501 15 4 1, 609 3, 614 10, 633 1, 635 1, 706 2 IECC-18: International Energy Conservation Code® 301 2 IFC-18: International Fire Code® 201 3, 4012, 412 1, 412 6, 412 7, 412 7 3, 412 8, 413 1, 413 3, 41331, 4135, 413925, 6331, 7011, 701 2, 703 2, 703 2 2, 703 3 8, 703 4, 703 5, 704 12, 704 3, 704 4, 706 2, 706 3, 707 1, 707 2, 708 1 IMC-18: International Mechanical Code® 101 2 5, 201 3, 301 1 1, 301 13, 304 11, 307 1, 307 5, 501 1, 614 2, 614 10, 618 3, 621 1, 624 1, 631 2, 632 1,703 1 2 IPC-18: International Plumbing Code® 201 3, 301 6, 307 3, 624 1 1, 624 2 IRC-18: International Residential Code® 101 2,7032 1 140 2018 INTERNATIONAL FUEL GAS CODE" ' CopynghtOo2.017 ICC ALL RIGHTS RESERVED A-LDdby H®Ih¢Van DmT(Rvdme Oo,d-od om),(Qty of R-d-od)OTdo,N=b,,x1o08170S601 JM 15. ZMO oc 51 AM (GET) Mt,mmt to I ( " S 1,-Ag,-^ '^Rt, ICC No otths TTAodomoo. m AtOy Tgoodomo- by any Ot Party o[ ATmboemd,Oo[vsd Mglo -ooly oTymg and Nyodwg TMIRIS d ANY VNAVTHO OLDER REPROD VCIION OR D ISIRIEVTION IS VIOLATION OP THE FEDERAL COPYRIGHT 11 INC THE LICENSE A G RE EM ENT. INC REJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER REFERENCED STANDARDS MSS ANSI SP 55-2009: Pipe Hangers and Supports —Materials, Design and Manufacture 4072 NFPA 2-16: Hydrogen Technologies Code 703 1,7062 Manufacturers Standardization Society of the Valve and Fittings Industry 127 Park Street, NE Vienna, VA 22180 National Fire Protection Association 1 Balterymarch Park Quincy, MA 02169-7471 30A-18: Code for Motor Fuel Dispensing Facilities and Repair Garages 305 4, 305 10 37-18: Standard for the Installation and Use of Stationary Combustion Engines and Gas Turbines 6161 51-18: Design and Installation of Oxygen -fuel Gas Systems for Welding, Cutting and Allied Processes 4141 58-17: Liquefied Petroleum Gas Code 401 2, 402 7, 403 6 2, 403 11 70-17: National Electrical Code 30631, 30641, 30652, 3092, 310112, 413924, 7036 82-14: Incinerators, Waste and Linen Handling Systems and Equipment 503 2 5, T503 4, 607 1 85-15: Boiler and Combustion Systems Hazards Code 631 1 SSA-15: Parking Structures 3059 211-16: Standard for the Cldmneys, Fireplaces, Vents and Solid Fuel -burning Appliances 50352, 50353, 503561, 503563 409-16: Standard for the Aircraft Hangars 305 11 853-15: Installation of Stationary Fuel Cell Power Systems 633 1 UL UL LLC 333 Ptingsten Road Northbrook, IL 60062 103-2010: Factory -built Chimneys, Residential Type and Building Heating Appliances —with Revisions through July 2012 506 1 127-2011: Factory -built Fireplaces —with Revisions through May 2015 621 7 378-2006: Draft Equipment 50333 441-2010: Gas Vents —with Revisions through June 2014 502 1 641-2010: Type L Low -temperature Venting Systems —with Revisions through June 2013 502 1 651-2011: Schedule 40 and 80 Rigid PVC Conduit and Fittings —with Revisions through May 2014 40363 2018 INTERNATIONAL FUEL GAS CODE" 141 I " ' CoLFIEILOo2.017 ICC ALL RIGHTS RESERVED Awned by H®Ih¢ Van DmT(hvdme Oo,dT od om),(Dty of Ro,dNood)O[do,N=b,,*1008170S601 JM 15. ZMO oc 51 AM (PET) puuvant to ( LET AgffiTTxom Rt, ICC NofwN¢[Todomoo.mAtO, Tgoodomo- by any Ot Party oT ATmboemdmho[vsd Mglo—ody oTyncg and Nyodwg T,oIRb Ad ANY VNAVTHO RIVER REICLA VCTION OR DISIRIBITTO N IS A VIOLATION OF THE FEDERAL COPYRIGHT ACT AND THE LICENSE AGREEMENT. AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER REFERENCED STANDARDS UL—continued 795-2011: Commercial -industrial Gas Heating Equipment —with Revisions through November 2013 610 1, 618 1, 631 1 959-2010: Medium Heat Appliance Factory -built Chimneys —with Revisions through June 2014 5063 1618-09: Wall Protectors, Floor Protectors and Hearth Extensions —with Revisions through October 2015 3082 1738-2010: Venting Systems for Gas Burning Appliances, Categories II, III and IV —with Revisions through November 2014 502 1,5034 1 1777-2007: Chimney Liners —with Revisions through October 2015 501 12, 501 15 4 2200-2012: Stationary Engine Generator Assemblies —with Revisions through July 2015 6161 142 2018 INTERNATIONAL FUEL GAS CODE" firill ' UER CopynghtOo2.017 ICC ALL RIGHTS RESERVED A—LDd by H®Ih¢ Van Dme(Rvdme pooch od om),(Qty of ERmdNmod)O[do,N=b,,*1008170S601 JM 15, ZMO oc 51 AM (GET) Mt,mmt to S I ( 1, Ag,'^Rt, ICC Nootths TAodomo,,m AtO, goodomo-by any Ot Party o[Axmboemd,Oo[vsd Mgle—odympyncg and Nyodwg TMIRISed ANY VNAVTHO OLDER REPROD ,,MN OR D ISIRIEVTION IS VIOLATION OP THE FED REAL COPYRIGHT 11 AND THE LICENSE AGREEMENT, AND REJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER APPENDIX A (IFGS) SIZING AND CAPACITIES OF GAS PIPING This appendix is informative and is not part of the code. User note: About this appendix., Appendix A provides commentary, guidance and examples for sizing of gas piping systems A.1 General piping considerations. The first goal of deter- mining the pipe sizing for a fuel gas piping system is to make sure that there is sufficient gas pressure at the inlet to each appliance The majority of systems are residential and the appliances will all have the same, or nearly the same, require- ment for minimum gas pressure at the appliance inlet This pressure will be about 5-mch water column (w c ) (1 25 kPa), wluch is enough for proper operation of the appliance regula- tor to deliver about 3 5-inches water column (w c ) (875 kPa) to the burner itself The pressure drop in the piping is sub- tracted from the source delivery pressure to verify that the minimum is available at the appliance There are other systems, however, where the required inlet pressure to the different appliances may be quite varied In such cases, the greatest inlet pressure required must be satis- fied, as well as the farthest appliance, which is almost always the critical appliance in small systems There is an additional requirement to be observed besides the capacity of the system at 100-percent flow That require- ment is that at minimum flow, the pressure at the inlet to any appliance does not exceed the pressure rating of the appli- ance regulator Tlus would seldom be of concern in small systems if the source pressure is Yz psi (14-inch w c ) (3 5 kPa) or less but it should be verified for systems with greater gas pressure at the point of supply To determine the size of piping used in a gas piping sys- tem, the following factors must be considered (1) Allowable loss in pressure from point of delivery to appliance (2) Maximum gas demand (3) Length of piping and number of fittings (4) Specific gravity of the gas (5) Diversity factor For any gas piping system, or special appliance, or for con- ditions other than those covered by the tables provided in this code, such as longer runs, greater gas demands or greater pressure drops, the size of each gas piping system should be determined by standard engineering practices acceptable to the code official A.2 Description of tables. A.2.1 General. The quantity of gas to be provided at each outlet should be determmed, whenever possible, directly from the manufacturer's gas input Bta/h rating of the appli- ance that will be installed In case the ratings of the appli- ances to be installed are not known, Table 402 2 shows the approximate consumption (m Btu per hour) of certain types of typical household appliances To obtain the cubic feet per hour of gas required, divide the total Bta/h input of all appliances by the average Btu heating value per cubic feet of the gas The average Btu per cubic feet of the gas in the area of the installation can be obtained from the serving gas supplier A.2.2 Low pressure natural gas tables. Capacities for gas at low pressure [less than 2 0 psig (13 8 kPa gauge)] in cubic feet per hour of 0 60 specific gravity gas for different sizes and lengths are shown in Tables 402 4(1) through 402 4(4) for iron pipe or equivalent rigid pipe, in Tables 402 4(8) through 402 4(11) for smooth wall semirigid tubing, in Tables 402 4(20) through 402 4(24) for polyethylene pipe and tubing, and in Tables 402 4(15) through 402 4(17) for corrugated stainless steel tubing Tables 402 4(1), 402 4(8) and 402 4(20) are based upon a pressure drop of 0 3-inch w c (75 Pa), whereas Tables 402 4(2), 402 4(9), 402 4(15) and 402 4(21) are based upon a pressure drop of 0 5-mch w c (125 Pa) Tables 402 4(3), 402 4(4), 402 4(10), 402 4(11), 402 4(16) and 402 4(17) are special low-pressure applica- tions based upon pressure drops greater than 0 5-inch w c (125 Pa) In using these tables, an allowance (m equivalent length of pipe) should be considered for any piping run with four or more fittings (see Table A 2 2) A.2.3 Undiluted liquefied petroleum tables. Capacities in thousands of Btu per hour of undiluted liquefied petroleum gases based on a pressure drop of 0 5-inch w c (125 Pa) for different sizes and lengths are shown in Table 402 4(28) for iron pipe or equivalent rigid pipe, in Table 402 4(30) for smooth wall semi -rigid tubing, in Table 402 4(32) for corru- gated stainless steel tubing, and in Tables 402 4(35) and 402 4(37) for polyethylene plastic pipe and tubing Tables 402 4(33) and 402 4(34) for corrugated stainless steel tubing and Table 402 4(36) for polyethylene plastic pipe are based on operating pressures greater than P/ pounds per square inch (psi) (3 5 kPa) and pressure drops greater than 0 5-inch w c (125 Pa) In using these tables, an allowance (in equiva- lent length of pipe) should be considered for any piping run with four or more fittings (see Table A 2 2) A.2.4 Natural gas specific gravity. Gas piping systems that are to be supplied with gas of a specific gravity of 0 70 or less can be sized directly from the tables provided in this code, unless the code official specifies that a gravity factor be applied Where the specific gravity of the gas is greater than 0 70, the gravity factor should be applied Application of the gravity factor converts the figures given in the tables provided in this code to capacities for another 2018 INTERNAT10NAL FUEL GAS CODE" 143 I 1 1 1 Co LFIEIL @ 2017 ICC ALL RIGHTS RESERVED Awned by H®Ih¢ Van DmA(Rv dme Oo,dA od om),(Qty of FRmdNmod) O[do, N=b,, *1 008170S6 01 JM 15, m0 oc 51 AM(PET)puArvant to ( LEA Affiee^® Rt, ICC No(wN¢[TAodomo,,m AtO,«odomo- by any Ot Party o, AAmboemd,Oo[vsd Mglo—ody mpyncg and Nyodwg L,oIRb¢Ad ANY VNAVTHO RIVER REPROD VCTION OR DISIRIBITTON IS VIOLATION OF THE FEDERAL COPYRIGHT ACT AND THE LICENSE AGREEMENT. AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER APPENDIX A TABLE A.2.2 EQUIVALENT LENGTHS OF PIPE FITTINGS AND VALVES SCREWED FITTINGS' 90° WELDING ELBOWS AND SMOOTH BENDS' 45°IEII 90°IEII 180°close Tee Rid = 1 Rid = 111, Rid = 2 Rid = 4 Rid = 6 Rid = 8 return bends k factor = 0 42 090 200 1 80 048 036 027 021 0 27 036 Lid' dio4n= 14 30 67 60 16 12 9 7 9 12 Nominal Inside pipe size, diameter r1, L = Equivalent Length In Feet of Schedule 40 (Standard -weight) Straight Pipes inches inches, Schedule 40s 1/2 0622 073 155 347 310 083 062 047 036 047 062 3/4 0 824 0 96 2 06 460 4 12 1 10 0 82 0 62 0 48 0 62 0 82 1 1 049 1 22 262 5 82 524 1 40 1 05 0 79 0 61 0 79 1 05 11/4 1 380 1 61 3 45 766 690 1 84 1 38 1 03 0 81 1 03 1 38 11/2 1 610 1 88 402 895 804 2 14 1 61 1 21 094 1 21 1 61 2 2067 2 41 5 17 115 10 3 276 207 1 55 1 21 1 55 207 21/2 2 469 2 88 6 16 137 12 3 329 247 1 85 1 44 1 85 2 47 3 3 068 3 58 767 171 15 3 409 307 230 1 79 2 30 307 4 4 026 4 70 10 1 224 20 2 537 403 3 02 235 3 02 403 5 5 047 5 88 12 6 280 252 672 505 3 78 294 3 78 5 05 6 6 065 707 15 2 338 30 4 809 607 455 354 455 607 8 7981 931 200 446 400 106 798 598 465 598 798 10 1002 117 250 557 500 133 100 751 585 751 100 12 1194 139 298 663 596 159 119 895 696 895 119 14 1313 153 328 730 656 175 131 985 765 985 131 16 1500 175 375 835 750 200 150 112 875 112 150 18 1688 197 421 938 842 225 169 127 985 127 169 20 1881 220 470 1050 940 251 188 141 110 141 188 24 2263 264 566 1260 1130 302 226 170 132 170 226 (continued) 144 2018 INTERNATIONAL FUEL GAS CODE" " ' C',gbtOO?.o,7 ICC ALL RIGHTS RESERVED Awned by H®Ih¢Van Cm, (R—dme Io,d—od om),(Qty of R—d—od)A,do,N=b¢x,00e,7— 01 jM 15, fMO oc 51 AM(PST)pu�ry Mt to S I ( 0L,—Agffi—,o ,Rt, ICC Notth, TAodomo—oohs gAodomo,,by anydtAxmboem-Roossd9ogl—yodympyaog mdortwodao,odbAd ANY VNAVTHORIVED REPROD VCIION ORDISIR bu llON ISA VIOLATION OF THE FEDERAL COPYRIGHT ACT AND THE LICENSE AGREEMENT, AND SVEJECT TO CIVIL AND CRIMINAL PENALTIESTHERE VNDER APPENDIX A TABLE A.2.2—continued EQUIVALENT LENGTHS OF PIPE FITTINGS AND VALVES MITER ELBOW S' (No. of miters) WELDING TEES VALVES (screwed, flanged, or welded) 145° 1-60° 1-90° 2-90°' 3-W Forged Miter' Gate Globe Angle Swing Check k factor = 045 090 1 80 000 045 1 35 180 021 10 50 25 tan' ratio" n = 15 30 60 1 20 15 45 60 7 333 167 83 Nominal Inside pipe size, diametercl L = Equivalent Length In Feet of Schedule 40 (Standard -weight) Straight Pipes inches Schedule 406 1/ 0 622 078 1 55 3 10 104 078 233 3 10 036 173 865 432 3 / 0 824 1 03 2 06 4 12 1 37 1 03 3 09 412 048 22 9 11 4 572 1 1 049 1 31 262 524 1 75 1 31 393 524 061 29 1 146 727 11/4 1 380 1 72 345 690 230 1 72 5 17 690 081 383 19 1 958 11/2 1610 201 402 804 268 201 604 804 094 447 224 112 2 2067 258 517 103 345 258 775 103 121 574 287 144 21/2 2 469 308 6 16 123 411 308 925 123 144 685 343 17 1 3 3068 384 767 153 511 384 115 153 179 852 426 213 4 4 026 504 10 1 202 671 504 15 1 202 235 1120 560 280 5 5047 630 126 252 840 630 189 252 294 1400 700 350 6 6 065 758 152 304 10 1 758 228 304 354 1680 84 1 42 1 8 7 981 997 200 400 133 997 299 400 465 2220 111 0 555 10 1002 125 250 500 167 125 376 500 585 2780 1390 695 12 1194 149 298 596 199 149 448 596 696 3320 1660 830 14 1313 164 328 656 219 164 492 656 765 3640 1820 910 16 1500 188 375 750 250 188 562 750 875 4170 2080 1040 18 1688 21 1 42 1 842 28 1 21 1 632 842 985 4690 2340 1170 20 1881 235 470 940 31 4 235 706 940 11 0 5220 261 0 1310 24 2263 283 566 1130 378 283 850 1130 132 6290 3140 1570 For SI 1 foot= 305 mm, 1 degree — 0 01745 Fact Note: Values for welded fittings are for conditions where bore is not obstructed by weld spatter or backing rings If appreciably obstructed, use values for "Screwed Fittings" 1 Flanged fittings have three -fourths the resistance of screwed elbows and tees 2 Tabular figures give the extra resistance due to curvature alone to which should be added the full length of travel 3 Small size socket -welding fittings are equivalent to miter elbows and miter tees 4 Equivalent resistance in number of diameters of straight pipe computed for a value of (f- 0 0075) from the relation in - ld4f) 5 For condition of minimum resistance where the centerline length of each miter is between d and 21/d 6 For pipe having other inside diameters, the equivalent resistance can be computed from the above n values Source Crocker, S PJpmg Handbook, 4th ed , Table XIV, pp 100-101 Copyright 1945 by McGraw-Hill, Inc Used by permission of McGraw-Hill Book Company 2018 INTERNATIONAL FUEL GAS CODE" 145 I " ' (Arylght OO?.o,7 ICC ALL RIGHTS RESERVED Awned by H®Ih¢ Van Dme(Rv dme pooch od om),(Qty of FRmdNmod)O,do, Nomb,,*1008170S601 JM 15, ZMO 0651 AM (PET) t to ( Lie Affiee^® Rt, ICC No fwN¢ [TAodomo,, m AtO, Pepeodomo-by any Ot Party o, AxmboemRowsd M glo— oily mpyncg and Nyodwg L-ARIS ed ANY UNEARTHED RIVER REPRODUCTION OR DISTRIBUTION IS VIOLATION OF THE FEDERAL COPYRIGHT ACT AND THE LICENSE AGREEMENT. AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER APPENDIX A gas of different specific gravity Such application is accom- plished by multiplying the capacities given in the tables by the multipliers shown in Table A 2 4 In case the exact spe- cific gravity does not appear in the table, choose the next higher value specific gravity shown TABLEA.2.4 MULTIPLIERS TO BE USED WITH TABLES 402.4(1) THROUGH 402.4(22) WHERE THE SPECIFIC GRAVITY OF THE GAS IS OTHER THAN 0.60 SPECIFIC GRAVITY MULTIPLIER SPECIFIC GRAVITY MULTIPLIER 035 1 31 1 00 078 040 1 23 1 10 074 045 1 16 1 20 071 050 1 10 1 30 068 055 1 04 1 40 066 060 1 00 1 50 063 065 096 1 60 061 070 093 1 70 059 075 090 1 80 058 080 087 1 90 056 085 084 200 055 090 082 210 054 A.2.5 Higher pressure natural gas tables. Capacities for gas at pressures 2 0 psig (13 8 kPa) or greater in cubic feet per hour of 0 60 specific gravity gas for different sizes and lengths are shown in Tables 402 4(5) through 402 4(7) for iron pipe or equivalent rigid pipe, Tables 402 4(12) to 402 4(14) for semirigid tubing, Tables 402 4(18) and 402 4(19) for corrugated stainless steel tubing, and Table 402 4(22) for polyethylene plastic pipe A.3 Use of capacity tables. A.3.1 Longest length method. This sizing method is conser- vative in its approach by applying the maximum operating conditions in the system as the norm for the system and by setting the length of pipe used to size any given part of the piping system to the maximum value To determme the size of each section of gas piping in a system within the range of the capacity tables, proceed as fol- lows (also see sample calculations included in this Appen- dix) (I)Divide the piping system into appropriate segments consistent with the presence of tees, branch Imes and main runs For each segment, determme the gas load (assuming all appliances operate simultaneously) and its overall length An allowance (in equivalent length of pipe) as determmed from Table A 2 2 shall be con- sidered for piping segments that include four or more fittings (2)Determine the gas demand of each appliance to be attached to the piping system Where Tables 402 4(1) through 402 4(24) are to be used to select the piping size, calculate the gas demand in terms of cubic feet per hour for each piping system outlet Where Tables 402 4(25) through 402 4(37) are to be used to select the piping size, calculate the gas demand in terms of thou- sands of Btu per hour for each piping system outlet (3) Where the piping system is for use with other than undiluted liquefied petroleum gases, determine the design system pressure, the allowable loss in pressure (pressure drop), and specific gravity of the gas to be used in the piping system (4) Determme the length of piping from the point of deliv- ery to the most remote outlet in the building/piping system (5) In the appropriate capacity table, select the row show- ing the measured length or the next longer length if the table does not give the exact length This is the only length used in determining the size of any section of gas piping If the gravity factor is to be applied, the val- ues in the selected row of the table are multiplied by the appropriate multiplier from Table A 2 4 (6) Use this horizontal row to locate ALL gas demand fig- ures for this particular system of piping (7) Starting at the most remote outlet, find the gas demand for that outlet in the horizontal row lust selected If the exact figure of demand is not shown, choose the next larger figure left in the row (8) Opposite this demand figure, in the first row at the top, the correct size of gas piping will be found (9) Proceed in a similar manner for each outlet and each section of gas piping For each section of piping, deter- mine the total gas demand supplied by that section Where a large number of piping components (such as elbows, tees and valves) are installed in a pipe run, additional pressure loss can be accounted for by the use of equivalent lengths Pressure loss across any piping component can be equated to the pressure drop through a length of pipe The equivalent length of a combination of only four elbows/tees can result in a jump to the next larger length row, resulting in a significant reduction in capacity The equivalent lengths in feet shown in Table A 2 2 have been computed on a basis that the inside diameter corresponds to that of Schedule 40 (stan- dard -weight) steel pipe, which is close enough for most pur- poses involving other schedules of pipe Where a more specific solution for equivalent length is desired, this can be made by multiplying the actual inside diameter of the pipe in inches by n/12, or the actual inside diameter in feet by n (n can be read from the table heading) The equivalent length values can be used with reasonable accuracy for copper or copper alloy fittings and bends although the resistance per foot of copper or copper alloy pipe is less than that of steel For copper or copper alloy valves, however, the equivalent length of pipe should be taken as 45 percent longer than the values in the table, which are for steel pipe A.3.2 Branch length method. This sizing method reduces the amount of conservatism built into the traditional Longest Length Method The longest length as measured from the meter to the furthest remote appliance is only used to size the initial parts of the overall piping system The Branch Length Method is applied in the following manner (1) Determme the gas load for each of the connected appli- ances 146 2018 INTERNATIONAL FUEL GAS CODE" 11 1 CopyngbtOo2.017 ICC ALL RIGHTS RESERVED A—LDd by H®Ih¢ Van Dme(Raodme pooch od om),(Qty of FRmdNmod)O[do,N=b,,*1008170S601 JM 15. ZMO oc 51 AM (PET) mt to S I ( 1, Ag,'^Rt, ICC No otths TAodomoo. m AtOy odomo- by any Ot Party o[ Axmboemd,Oo[vsd Mgle—ooly o,and Nyodwg GMIRISed ANY VNAVTHO RIVER REPROD VCIION OR D ISIRIEVTION IS VIOLATION OP THE FED REAL COPYRIGHT 11 AND THE LICENSE AGREEME NT. AND REJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER APPENDIX A (2) Starting from the meter, divide the piping system into a number of connected segments, and determine the length and amount of gas that each segment would carry assuming that all appliances were operated simultaneously An allowance (in equivalent length of pipe) as determined from Table A 2 2 should be con- sidered for piping segments that include four or more fittings (3) Determine the distance from the outlet of the gas meter to the appliance furthest removed from the meter (4) Using the longest distance (found in Step 3), size each piping segment from the meter to the most remote appliance outlet (5)For each of these piping segments, use the longest length and the calculated gas load for all of the con- nected appliances for the segment and begin the sizing process in Steps 6 through 8 (6) Referring to the appropriate sizing table (based on operating conditions and piping material), find the lon- gest length distance in the first column or the next larger distance if the exact distance is not listed The use of alternative operating pressures or pressure drops will require the use of a different sizing table, but will not alter the sizing methodology In many cases, the use of alternative operating pressures or pressure drops will require the approval of both the code official and the local gas serving utility (7) Trace across this row until the gas load is found or the closest larger capacity if the exact capacity is not listed (8) Read up the table column and select the appropriate pipe size in the top row Repeat Steps 6, 7 and 8 for each pipe segment in the longest run (9) Size each remaining section of branch piping not previ- ously sized by measuring the distance from the gas meter location to the most remote outlet in that branch, using the gas load of attached appliances and following the procedures of Steps 2 through 8 A.3.3 Hybrid pressure method. The sizing of a 2 psi (13 8 kPa) gas piping system is performed using the traditional Longest Length Method but with modifications The 2 psi (13 8 kPa) system consists of two independent pressure zones, and each zone is sized separately The Hybrid Pressure Method is applied as follows The sizing of the 2 psi (13 8 kPa) section (from the meter to the line regulator) is as follows (1) Calculate the gas load (by adding up the name plate rat- ings) from all connected appliances (In certain circum- stances the installed gas load can be increased up to 50 percent to accommodate future addition of appliances ) Ensure that the line regulator capacity is adequate for the calculated gas load and that the required pressure drop (across the regulator) for that capacity does not exceed'/q psi (5 2 kPa) for a 2 psi (13 8 kPa) system If the pressure drop across the regulator is too high (for the connected gas load), select a larger regulator (2) Measure the distance from the meter to the line regula- tor located inside the building (3) If there are multiple line regulators, measure the dis- tance from the meter to the regulator furthest removed from the meter (4) The maximum allowable pressure drop for the 2 psi (13 8 kPa) section is 1 psi (6 9 kPa) (5) Referring to the appropriate sizing table (based on pip- ing material) for 2 psi (13 8 kPa) systems with a 1 psi (6 9 kPa) pressure drop, find this distance in the first column, or the closest larger distance if the exact dis- tance is not listed (6) Trace across this row until the gas load is found or the closest larger capacity if the exact capacity is not listed (7) Read up the table column to the top row and select the appropriate pipe size (8) If there are multiple regulators in this portion of the piping system, each line segment must be sized for its actual gas load, but using the longest length previously determined above The low pressure section (all piping downstream of the line regulator) is sized as follows (1) Determine the gas load for each of the connected appli- ances (2) Starting from the line regulator, divide the piping sys- tem into a number of connected segments or indepen- dent parallel piping segments, and determine the amount of gas that each segment would carry assuming that all appliances were operated simultaneously An allowance (m equivalent length of pipe) as determined from Table A 2 2 should be considered for piping seg- ments that include four or more fittings (3) For each piping segment, use the actual length or lon- gest length (if there are sub-branchlines) and the calcu- lated gas load for that segment and begin the sizing process as follows (a) Referring to the appropriate sizing table (based on operating pressure and piping material), find the longest length distance in the first column or the closest larger distance if the exact distance is not listed The use of alternative operating pres- sures and/or pressure drops will require the use of a different sizing table, but will not alter the siz- mg methodology In many cases, the use of alter- native operating pressures and/or pressure drops can require the approval of the code official (b) Trace across this row until the appliance gas load is found or the closest larger capacity if the exact capacity is not listed (c) Read up the table column to the top row and select the appropriate pipe size (d) Repeat this process for each segment of the pip- ing system A.3.4 Pressure drop per 100 feet method. Hus sizing method is less conservative than the others, but it allows the 2018 INTERNAT10NAL FUEL GAS CODE" 147 I " ' CALFIEIL @ 2017 ICC ALL RIGHTS RESERVED A—LDd by H®Ih¢ Van Dme(Rv dme pooch od om),(Qty of FRmdNmod)O[do, Nomb,,*1008170S601 JM 15. ZMO oc 51 AM (PET) t to ( Lie Affiee^® Rt, ICC No fwN¢[TAod,Ao,,m AtO,Pepeod,Ao- by any Ot Party o, Axmboemdm6o d Mglo—ody mpyncg and Nyodwg LARISAd ANY VNAVTHO RIVER REICLA VCTION OR DISIRIBITTO N IS A VIOLATION OF THE FEDERAL COPYRIGHT ACT AND THE LICENSE AGREEMENT. AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER APPENDIX A designer to immediately see where the largest pressure drop occurs in the system With this information, modifications can be made to bring the total drop to the critical appliance within the limitations that are presented to the designer Follow the procedures described in the Longest Length Method for Steps (1) through (4) and (9) For each piping segment, calculate the pressure drop based on pipe size, length as a percentage of 100 feet (30 480 mm) and gas flow Table A 3 4 shows pressure drop per 100 feet (30 480 mm) for pipe sizes from V2 inch (12 7 mm) through 2 inches (51 mm) The sum of pressure drops to the critical appliance is subtracted from the supply pressure to verify that sufficient pressure will be available If not, the layout can be examined to find the lugh drop section(s) and sizing selec- tions modified Note: Other values can be obtained by using the following equation Desired Value = MBH x [Desired Drop Table Drop For example, if it is desired to get flow through '/q mch (19 1 mm) pipe at 2 inches/100 feet, multiply the capacity of '/q mch pipe at 1 mch/100 feet by the square root of the pres- sure ratio 147 MBH x 2 w c = 147 x 1 414 = 208 MBH 1"wc (MBH = 1000 Btu/h) A.4 Use of sizing equations. Capacities of smooth wall pipe or tubing can also be determined by using the following for- mulae (1) High Pressure [1 5 psi (10 3 kPa) and above] Q D5x(P!—P2)xY = 1816 C,xfbaxL 2 2 0541 = 2237 D2 czs�(PI —P2) x IT C,xL (2) Low Pressure [Less than 1 5 psi (10 3 kPa)] Q = 1873 D5x4H C,xfbaxL 2313D 2123� OH— 0541 = C, x where Q = Rate, cubic feet per hour at 60'F and 30-inch mercury column D = Inside diameter of pipe, in P, = Upstream pressure, psia P2 = Downstream pressure, psia Y = Superexpansibility factor = 1/supercompressibility factor C, = Factor for viscosity, density and temperature* 0 152 0 00354 STT *Note See Table 402 4 for Y and C, for natural gas and propane S = Specific gravity of gas at 60'F and 30-inch mercury column (0 60 for natural gas, 150 for propane), or = 1488µ T = Absolute temperature, 'F or = t+ 460 t = Temperature,'F Z = Viscosity of gas, centipoise (0 012 for natural gas, 0 008 for propane), or = 148811 jba= Base friction factor for air at 60'F (CF = 1) L = Length of pipe, It DH= Pressure drop, in w c (27 7 in H2O =1 psi) (For SI, see Section 402 4) A.5 Pipe and tube diameters. Where the internal diameter is determined by the formulas in Section 402 4, Tables A 5 1 and A 5 2 can be used to select the nominal or standard pipe size based on the calculated internal diameter TABLE A.5.1 SCHEDULE 40 STEEL PIPE STANDARD SIZES NOMINAL SIZE (inch) INTERNAL DIAMETER (inch) NOMINAL SIZE (inch) INTERNAL DIAMETER (inch) 1/4 0 364 11/L 1 610 '/R 0 493 2 2067 1/2 0 622 21/2 2 469 3/4 0 824 3 3 068 1 1 049 31/2 3 548 11/4 1380 4 4026 For SI 1 inch = 25 4 min TABLE A.3.4 THOUSANDS OF BTU/H (MBH) OF NATURAL GAS PER 100 FEET OF PIPE AT VARIOUS PRESSURE DROPS AND PIPE DIAMETERS PRESSURE DROP PER 100 FEET IN INCHES W.C. PIPE SIZES (inch) '12 'Ia 1 P14 1'12 2 02 31 64 121 248 372 716 03 38 79 148 304 455 877 05 50 104 195 400 600 1160 1 0 71 147 276 566 848 1640 For SI 1 inch = 25 4 min, 1 foot= 304 8 min 148 2018 INTERNATIONAL FUEL GAS CODE" " ' C',ghtOO?.o17 ICC ALL RIGHTS RESERVED Awned by H®Ih¢Van Cm, (hvdme Io,dNVod om),(Dby of FRmdNmod)A,do,N=b,,*100817— 01 jM 15, fMO oc 51 AM(PSI)pu�ry Mt to S I ( 0L,—Agffi—,o ,Rt, ICC NofwNs TAod,Aoo oALthy ,Aod,Ao,,by anydtAxmboem-thoossd Stgh—,odympyncg mdortwodaogpoodbAd ANY VNAVTHORIVED REPROD VCIION ORDISIRIEVTION ISA VIOLATION OF THE FEDERAL COPYRIGHT ACT AND THE LICENSE AGREEMENT, AND SVEJECT TO CIVIL AND CRIMINAL PENALTIESTHERE VNDER APPENDIX A TABLE A.5.2 Solution: COPPER TUBE STANDARD SIZES TUBE TYPE NOMINAL OR STANDARD SIZE (inches) INTERNAL DIAMETER (inches) K 1/4 0 305 L 1/4 0 315 ACR (D) '/g 0 315 ACR (A) '/g 0 311 K '/g 0 402 L '/g 0 430 ACR (D) 1/2 0 430 ACR (A) 1/2 0 436 K 1/2 0 527 L 1/2 0 545 ACR (D) '/g 0 545 ACR (A) '/g 0 555 K '/g 0 652 L '/g 0 666 ACR (D) '/y 0 666 ACR (A) '/y 0 680 K '/y 0 745 L '/y 0 785 ACR '/g 0 785 K 1 0 995 L 1 1 025 ACR 11/g 1025 K 11/4 1245 L 11/4 1265 ACR 1'/g 1265 K 11/2 1 481 L 11/2 1505 ACR 1'/g 1505 K 2 1 959 L 2 1 985 ACR 21/g 1985 K 21/2 2 435 L 21/2 2 465 ACR 25/g 2 465 K 3 2 907 L 3 2 945 ACR 31/g 2945 For SI 1 inch = 25 4 min A.6 Examples of piping system design and sizing. A.6.1 Example 1: Longest length method. Determine the required pipe size of each section and outlet of the piping sys- tem shown in Figure A 6 1, with a designated pressure drop of 0 5-inch w c (125 Pa) using the Longest Length Method The gas to be used has 0 60 specific gravity and a heating value of 1,000 Btu/ft' (37 5 MJ/m') (1) Maximum gas demand for OutletA Consumption (rating plate input) Btu of gas 35,000 Btu per hour rating — 35 cubic feet per hour = 35 cfh 1,000 Btu per cubic foot Maximum gas demand for Outlet Consumption _ 75,000 — 75 cfh Btu of gas 1,000 Maximum gas demand for Outlet Consumption — 35,000 — 35 cfh Btu ofgas 1,000 Maximum gas demand for Outlet Consumption — 100,000 — 100 cfh Btu ofgas 1,000 (2) The length of pipe from the point of delivery to the most remote outlet (A) is 60 feet (18 288 mm) This is the only distance used (3) Using the row marked 60 feet (18 288 mm) in Table 402 4(2) (a) Outlet A, supplying 35 cfh (0 99 m'/hr), requires '/z inch pipe (b) Outlet B, supplying 75 cfh (2 12 m'/hr), requires '/q inch pipe (c) Section 1, supplying Outlets A and B, or 110 cfh (3 11 m'/hr), requires '/q mch pipe (d) Section 2, supplying Outlets C and D, or 135 cfh (3 82 m'/hr), requires '/q mch pipe (e) Section 3, supplying Outlets A, B, C and D, or 245 cfh (6 94 m'/hr), requires 1-mch pipe (4) If a different gravity factor is applied to this example, the values in the row marked 60 feet (18 288 mm) of Table 402 4(2) would be multiplied by the appropriate multiplier from Table A 2 4 and the resulting cubic feet per hour values would be used to size the piping A.6.2 Example 2: Hybrid or dual pressure systems. Deter- mine the required CSST size of each section of the piping system shown in Figure A 6 2, with a designated pressure drop of 1 psi (6 9 kPa) for the 2 psi (13 8 kPa) section and 3- inch w c (0 75 kPa) pressure drop for the 13-inch w c (2 49 kPa) section The gas to be used has 0 60 specific gravity and a heating value of 1,000 Btu/ft' (37 5 MJ/m') Solution (1) Size 2 psi (13 8 kPa) line using Table 402 4(18) (2) Size 10-inch we (2 5 kPa) lines using Table 402 4(16) 2018 INTERNATIONAL FUEL GAS CODE® 149 I I I I CAryagRt @ 2017 ICC ALL RIGHTS RESERVED A—LDd by H®Ih¢ Van Dme(Rv dme pooch od om),(Qty of FRmdNmod) O[do, Nomb,,*1008170S601 JM 15, m0 oc 51 AM (PET) t to ( Lie Affiee^® Rt, ICC No(wN¢[TAodomoo.m AtO,Pepeodomo- by any Ot Party o, AxmboemdmRo d Mglo—ody mpyncg and Nyodwg LARISAd ANY UNEARTHED RIVER REPROD VCTION OR DISIRIBITTON IS VIOLATION OF THE FEDERAL COPYRIGHT ACT AND THE LICENSE AGREEMENT. AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER APPENDIX A Outlet D furnace Outlet C 100000 S1u'h wmerheater mp00 mm, 20flSectlon2 Seonon3 Zlfl Senioni 10fl 15fl --_-_-� i l } 5ft J ton 15fl CLI Pablo( Whe tlryer delivery 35000 such Outlet 6 range/oven unit 75000 Shunt FIGURE A 6 1 PIPING PLAN SHOWING A STEEL PIPING SYSTEM (3) Using the following deteimme if sizing tables can be used (a) Total gas load shown in Figure A 6 2 equals 110 cfh (3 11 m'/hr) (b)Determine pressure drop across regulator [see notes in Table 402 4(18)] (c) If pressure drop across regulator exceeds'/A psig (5 2 kPa), Table 402 4(18) cannot be used Note If pressure drop exceeds /A psi (5 2 kPa), then a larger regulator mustbe selected or an alternative sizing method must be used (d) Pressure drop across the line regulator [for 110 eft (3 11 m'/hr)] is 4-mch w c (099 kPa) based on manufacturer's performance data (e) Assume the CSST manufacturer has tubing sizes or EI-IDs of 13, 18, 23 and 30 (4) Section A [2 psi (13 8 kPa) zone] (a) Distance from meter to regulator = 100 feet (30 480 min) (b) Total load supplied by A = 110 cfh (3 11 m'/hr) (furnace+ water heater+ dryer) (c) Table 402 4(18) shows that EFID size 18 should be used Note It is not unusual to oversize the supply line by 25 to 50 percent of the as -installed load EFID size 18 has a capacity of 189 cfh (5 35 m'/ hr) (5) Section B (low pressure zone) (a) Distance from regulator to furnace is 15 feet (4572 min) (b) Load is 60 cfh (1 70 m'/hr) (c) Table 4024(16) shows that EHD size 13 should be used (6) Section C (low pressure zone) (a) Distance from regulator to water heater is 10 feet (3048 min) (b) Load is 30 cfh (0 85 m'/hr) (c) Table 402 4(16) shows that EFID size 13 should be used (7) Section D (low pressure zone) (a) Distance from regulator to dryer is 25 feet (7620 min) (b) Load is 20 cfh (0 57 m'/hr) (c) Table 402 (1) shows that EFID size 13 should be used I{\-/� G 0 Water Melee section ao inn A _ -Q 2 Put, mreT Din min Leigm Anna. Xer. A-1Wft MManibld Ii=t5ft C=.ft ShuMORwNa D=251t G, Pressure regulator is, eGee matey FIGURE A 6 2 PIPING PLAN SHOWING A CSST SYSTEM A.6.3 Example 3: Branch length method. Deternme the required semirigid copper tubing size of each section of the piping system shown in Figure A 6 3, with a designated pres- sure drop of 1-inch w c (250 Pa) (using the Branch Length Method) The gas to be used has 0 60 specific gravity and a healing value of 1,000 Btu/fl (37 5 MJ/m') Solution: (1) Section A (a) The length of tubing from the point ofrklivery to the most remote appliance is 50 feet (15 240 mani + C (b) Use this longest length to size Sections A and C (c) Using the row marked 50 feet (15 240 min) in Table 402 4(10), Section A, supplying 220 cfh (62 m'/hr) for four appliances requires 1-mch tubing (2) Section B (a) The length of tubing from the point ofrklivery to the range/oven at the end of Section B is 30 feet (9144 min), A + B 150 2018 INTERNATIONAL FUEL GAS CODE' C�.om..-«ua xwmxs u.�a ae�a �aamr,..a..m4 o NxI. I. ®is.1��oran IST[I I. .a A_.a.,w.�«xAw��m*�ww mRMNv yam — Iy veae000«— IS— ISA —oe raemesu. I—xcrrmmraucwaxva nrr ramsuelrcrvo wu. rmmc—e— 1•dl„;1 01 Q *11l 100817036 (b) Use this branch length to size Section B only. (c) Using the row marked 30 feet (9144 mm) in Table 402.4(10), Section B, supplying 75 cfh (2.12 m3/hr) for the range/oven requires 1/2-inch tubing. (3) Section C (a) The length of tubing from the point of delivery to the dryer at the end of Section C is 50 feet (15 240 min), A + C. (b) Use this branch length (which is also the longest length) to size Section C. (c) Using the row marked 50 feet (15 240 min) in Table 402.4(10), Section C, supplying 30 cfh (0.85 m3/hr) for the dryer requires %-inch tub- ing. (4) Section D (a) The length of tubing from the point of delivery to the water heater at the end of Section D is 30 feet (9144 min), A + D. (b) Use this branch length to size Section D only. (c) Using the row marked 30 feet (9144 mm) in Table 402.4(10), Section D, supplying 35 cfh (0.99 a1hr) for the water heater requires %-inch tubing. (5) Section E (a) The length of tubing from the point of delivery to the furnace at the end of Section E is 30 feet (9144 min), A + E. (b) Use this branch length to size Section E only. (c) Using the row marked 30 feet (9144 min) in Table 402.4(10), Section E, supplying 80 cfh (2.26 al hr) for the furnace requires '/Z inch tubing. 0 o Range/oven 0 0 75 cfh Section B Section C Section A Section D 220 cfh 77 Water Section E (o heater 35 cfh Furnace Dryer 80 cfh 30 cfh Length of runs: Key A = 20 ft Manifold B=10ft C = 30 ft X Shut-off valve D = 10 ft ❑M Gas meter E=10ft Total gas load = 220 cfh FIGURE A.6.3 PIPING PLAN SHOWING A COPPER TUBING SYSTEM A.6.4 Example 4: Modification to existing piping system. Determine the required CSST size for Section G (retrofit application) of the piping system shown in Figure A.6.4, with a designated pressure drop of 0.5-inch w.c. (125 Pa) using the branch length method. The gas to be used has 0.60 specific gravity and a heating value of 1,000 Btu/ft' (37.5 MJ/ru). Solution: (1) The length of pipe and CSST from the point of delivery to the retrofit appliance (barbecue) at the end of Sec- tion G is 40 feet (12 192 min), A + B + G. (2) Use this branch length to size Section G. (3) Assume the CSST manufacturer has tubing sizes or EHDs of 13, 18, 23 and 30. (4) Using the row marked 40 feet (12 192 mm) in Table 402.4(15), Section G, supplying 40 cfh (1.13 a1hr) for the barbecue requires EHD 18 CSST. (5) The sizing of Sections A, B, F and E must be checked to ensure adequate gas carrying capacity since an appliance has been added to the piping system (see A.6.1 for details). Barbecue 40 cfh Section G ection E Section F Section D � I Water u heater Furnace 30 cfh °o 0 80 cfh Range/oven 75 cfh Length of runs: Key A= 15 ft E= 5 ft X Shut-off valve B=10ft F=10ft C=15ft G=15ft 0 Gas meter D=20ft FIGURE A.6.4 PIPING PLAN SHOWING A MODIFICATION TO EXISTING PIPING SYSTEM A.6.5 Example 5: Calculating pressure drops due to tem- perature changes. A test piping system is installed on a warm autumn afternoon when the temperature is 70°F (2 PQ. In accordance with local custom, the new piping sys- tem is subjected to an air pressure test at 20 psig (138 kPa). Overnight, the temperature drops and when the inspector shows up first thing in the morning the temperature is 40°F (4°C). If the volume of the piping system is unchanged, then the formula based on Boyle's and Charles' law for determining the new pressure at a reduced temperature is as follows: Ti P, T2 P2 where: T, = Initial temperature, absolute (T, + 459) 2018 INTERNATIONAL FUEL GAS CODE® 161 Copyight @ 2017ICC ALL RIGHTS RESERVED A ... —d by H2Oh,, Va Di., (h,-J,.,@fn ds d c,m), (City f F,Ods d) O,d,, Numb,, #100817036 ov Ja 15, ww 06 so AM (PST) pins t IF Lmevse Ag... mevcwith ICC Nofu,therep,,d.,tiov,vofu,th,,,,p,,duchovsbya.ythi,dpa,ry,o,dlst,lbuhovauth,,lz,d Singleuse,ovly,c,pyi.g-d.,twodavg prohibited ANY UNAUTHORIZED REPRODUCTION OR DISTRIBUTION IS A VIOLATION OF THE FEDERAL COPYRIGHT ACT AND THE LICENSE AGREEMENT, AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER APPENDIX A T2 = Final temperature, absolute (T2+ 459) PJ = Initial pressure, psia (PJ + 14 7) P2 = Final pressure, psia (P2+ 14 7) 70( + 459) = 20( + 14.7) (40+459) W2+14.7) 529 34.7 499 W2 + 14.7) (P2 + 14.7) x 529 = 34.7 499 (P2 + 14.7) x 34.7 1.060 P2= 327-147 P2 = 18 psig Therefore, the gauge could be expected to register 18 psig (124 kPa) when the ambient temperature is 40OF (4OC) A.6.6 Example 6: Pressure drop per 100 feet of pipe method. Using the layout shown in Figure A 6 1 and DH = pressure drop, in w c (27 7 in H2O = 1 psi), proceed as follows (1) Length to A = 20 feet, with 35,000 Bta/hr For'/z inch pipe, AH = 20 ree`/Joo E , x 0 3 mch w c = 0 06 mwc (2) Length to B =15 feet, with 75,000 Btu/hr For '/q mch pipe, AH = 'f ree`/Joo feet x 0 3 inch w c = 0045inwc (3) Section 1 = 10 feet, with 110,000 Bta/hr Here there is a choice For t inch pipe AH ='0 let/1 oo feet x 0 21nch w c — 0 02 mwc For '/q mch pipe AH = 10 feet/ oo feet x [0 5 inch w c + (110,000 Btf/h,104,000 BwJTr)/ q o0o swm,104 o0o swmr> x (1 0 inches wc-05inch wc)]=01 x 0 57 inch w c a 0 06 inch we Note that the pressure drop between 104,000 Btu/hr and 147,000 Btu/hr has been interpolated as 110,000 Btu/hr. (4) Section 2 = 20 feet, with 135,000 Bta/hr Here there is a choice ForI-inchpipe AH=20fee4/Jo0"x[02mchwe + (14,000 Bmm>/(27 000 Bt.) x 0 1 inch w c]= 0 05 inch w e For'/q mch pipe AH— 20 fee`/Joo feet x 1 0 inch w e= 0 2 inch w c Note that the pressure drop between 121,000 Btu/hr and 148, 000 Btu/hr has been interpolated as 135, 000 Btu/hr, but interpolation for the '/<-mch pipe (trivial for 104, 000 Btu/hr to 147, 000 Btu/hr) was not used (5) Section 3 = 30 feet, with 245,000 Bta/hr Here there is a choice Forl-mchpipe AH='OHet/ oofeet x10inches wc =03 inch w c For 1'/4-mch pipe AH = 30 "/ oo feet x 0 2 inch w c = 0 06 mch w c Note that interpolation for these options is ignored since the table values are close to the 245, 000 Btu/hr tamed by thatsection. (6) The total pressure drop is the sum of the section approaching A, Sections 1 and 3, or either of the fol- lowing, depending on whether an absolute mimmum is needed or the larger drop can be accommodated Mimmum pressure drop to farthest appliance AH = 0 061nch w e+ 0 021nch w e+ 0 06 mch w c= 014mchwc Larger pressure drop to the farthest appliance AH=0061nchwe +0061nchwe +031nchwe = 0 42 mch w c Notice that Section 2 and the run to B do not enter into this calculation, provided that the appliances have similar input pressure requirements. For SI units 1 Btu/hr = 0 293 W, 1 cubic foot = 0 028 m', 1 foot = 0 305 in, 1 inch w c = 249 Pa 152 2018 INTERNATIONAL FUEL GAS CODE® C',ghtOO?.o17 ICC ALL RIGHTS RESERVED Awsed by HDO,, Cm Cm, (hv dmepf dv od om),(Qty of IFnmd—od)O,do,N=b¢*100817— 01 jM 15, fMO oe 51 AM(PET) Lb,mmt to M. I ( I vlkIoi ,Agffi,vo ,AOICC Nofth,,,od,S,o,,,o�t,,, od,S,00zbyany ,dputyo, IMb,t—thod ANYVNAVTHORIVED RBPROD VCIION ORDISI—IION LEA VIOLATION OF THE FEDERAL COPYRIGHT ACT AND THE LICENSEAGREEMENT.AND SUBJECT TO CIVIL AND CRIMINAL PENALTIESTHERBUNDER 100817036 APPENDIX B (IFGS) SIZING OF VENTING SYSTEMS SERVING APPLIANCES EQUIPPED WITH DRAFT HOODS, CATEGORY I APPLIANCES AND APPLIANCES LISTED FOR USE WITH TYPE B VENTS This appendix is informative and is not part of the code. User note: About this appendix: Appendix B provides commentary, guidance and examples for the design of venting systems for the types of appli- ances that vent by natural draft and have draft hoods or are listed as Category 1 or are listed for use with Type B vents. EXAMPLES USING SINGLE APPLIANCE VENTING TABLES Example 1: Single draft -hood -equipped appliance. An installer has a 120,000 British thermal unit (Btu) per hour input appliance with a 5-inch-diameter draft hood outlet that needs to be vented into a 10-foot-high Type B vent system. What size vent should be used assuming (a) a 5-foot lateral single -wall metal vent connector is used with two 90-degree elbows, or (b) a 5-foot lateral single -wall metal vent connec- tor is used with three 90-degree elbows in the vent system? Solution: Table 504.2(2) should be used to solve this problem, because single -wall metal vent connectors are being used with a Type B vent. (a) Read down the first column in Table 504.2(2) until the row associated with a 10-foot height and 5-foot lateral is found. Read across this row until a vent capacity greater than 120,000 Btu per hour is located in the For SL 1 foot = 304.8 min, 1 British thermal unit per hour = 0.2931 W. Table 504.2(1) is used where sizing Type B double -wall gas vent connected directly to the appliance. Note: The appliance can be either Category I draft hood equipped or fan - assisted type. FIGURE B-1 TYPE B DOUBLE -WALL VENT SYSTEM SERVING A SINGLE APPLIANCE WITH A TYPE B DOUBLE -WALL VENT shaded columns labeled "NAT Max" for draft -hood - equipped appliances. In this case, a 5-inch-diameter vent has a capacity of 122,000 Btu per hour and can be used for this application. (b) If three 90-degree elbows are used in the vent system, then the maximum vent capacity listed in the tables must be reduced by 10 percent (see Section 504.2.3 for single appliance vents). This implies that the 5- inch-diameter vent has an adjusted capacity of only 110,000 Btu per hour. In this case, the vent system must be increased to 6 inches in diameter (see calculations below). 122,000 (.90) = I10,000 for 5-inch vent From Table 504.2(2), Select 6-inch vent 186,000 (.90) = 167,000; This is greater than the required 120,000. Therefore, use a 6-inch vent and connector where three elbows are used. SINGLE-N CONNEC For SL 1 foot = 304.8 turn, 1 British thermal unit per hour = 0.2931 W. Table 504.2(2) is used where sizing a single -wall metal vent connector attached to a Type B double -wall gas vent. Note: The appliance can be either Category I draft hood equipped or fan - assisted type. FIGURE B-2 TYPE B DOUBLE -WALL VENT SYSTEM SERVING A SINGLE APPLIANCE WITH A SINGLE -WALL METAL VENT CONNECTOR 2018 INTERNATIONAL FUEL GAS CODE® 163 v Copy,,ght @ 2017ICC ALL RIGHTS RESERVED A ... —d by H2Oh,, Va Dm (hv h.,@fn ds d com), (Qty f F,—d—d) O,d,, Numb,, o0a19 ov Ja 11, ww 06 o AM (PST) pins t IF U...s, Ag... m t w th ICC No fu,the rep,,d.,ti,., vo fu,th,,,,p,,duchovs by a.y th�,d pa,ry, o, dust,buhov auth....d Smgle u , .Iy, c,pymg -d vetw kmg p,,h�]At,a ANY UNAUTHORIZED REPRODUCTION OR DISTRIBUTION IS A VIOLATION OF THE FEDERAL COPYRIGHT ACT AND THE LICENSE AGREEMENT, AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER /9»=I01U]E41-1 100817036 TYPE GAS' COMP Table 504.2(3) is used where sizing a Type B double -wall gas vent connector attached to a tile -lined masonry chimney. Note: "A" is the equivalent cross -sectional area of the tile liner. Note: The appliance can be either Category I draft hood equipped or fan - assisted type. FIGURE B-3 VENT SYSTEM SERVING A SINGLE APPLIANCE WITH A MASONRY CHIMNEY OF TYPE B DOUBLE -WALL VENT CONNECTOR Table 504.2(4) is used where sizing a single -wall vent connector attached to a tile -lined masonry chimney. Note: "A" is the equivalent cross -sectional area of the tile liner. Note: The appliance can be either Category I draft hood equipped or fan - assisted type. FIGURE B-4 VENT SYSTEM SERVING A SINGLE APPLIANCE USING A MASONRY CHIMNEY AND A SINGLE -WALL METAL VENT CONNECTOR Asbestos cement Type B or single -wall metal vent serving a single draft - hood -equipped appliance [see Table 504.2(5)]. FIGURE B-6 ASBESTOS CEMENT TYPE B OR SINGLE -WALL METAL VENT SYSTEM SERVING A SINGLE DRAFT -HOOD -EQUIPPED APPLIANCE H CAP TYPE B DOUBLE -WALL COMMON VENT TYPE B DOUBLE -WALL GAS VENT USED AS CONNECTORS CONNECTOR RISE 'R" Table 504.3(1) is used where sizing Type B double -wall vent connectors attached to a Type B double -wall common vent. Note: Each appliance can be either Category I draft hood equipped or fan - assisted type. FIGURE B-6 VENT SYSTEM SERVING TWO OR MORE APPLIANCES WITH TYPE B DOUBLE -WALL VENT AND TYPE B DOUBLE -WALL VENT CONNECTOR 164 2018 INTERNATIONAL FUEL GAS CODE® t Copy,ghc @ 2017ICC ALL RIGHTS RESERVED A ... —d by H-th, Va Dm (hv h.,@fn .Od ood com), (C,ry of F,—O-ood) Cod, Numb, #100817036 ov It, 15, ww 06 so AM (PST) pug —t to Lmevse Ag... m t w th ICC No fu,the reproduction, vo fu,th,,,,produchovs by a.y th�,d pa,ry, o, dust,buho. a.tho,.,d Smgl, —, only, copymg -d v twodavg p,oIt1A ed ANY UNAUTHORIZED REPRODUCTION OR DISTRIBUTION IS A VIOLATION OF THE FEDERAL COPYRIGHT ACT AND THE LICENSE AGREEMENT, AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER APPENDIX B Table 504.3(2) is used where sizing single -wall vent connectors attached to a Type B double -wall common vent. Note: Each appliance can be either Category I draft hood equipped or fan - assisted type. FIGURE B-7 VENT SYSTEM SERVING TWO OR MORE APPLIANCES WITH TYPE B DOUBLE -WALL VENT AND SINGLE -WALL METAL VENT CONNECTORS Table 504.3(3) is used where sizing Type B double -wall vent connectors attached to a tile -lined masonry chimney. Note: "A" is the equivalent cross -sectional area of the tile liner. Note: Each appliance can be either Category I draft hood equipped or fan - assisted type. FIGURE B-8 MASONRY CHIMNEY SERVING TWO OR MORE APPLIANCES WITH TYPE B DOUBLE -WALL VENT CONNECTOR Table 504.3(4) is used where sizing single -wall metal vent connectors attached to a tile -lined masonry chimney. Note: "A" is the equivalent cross -sectional area of the tile liner. Note: Each appliance can be either Category I draft hood equipped or fan - assisted type. FIGURE B-9 MASONRY CHIMNEY SERVING TWO OR MORE APPLIANCES WITH SINGLE -WALL METAL VENT CONNECTORS Asbestos cement Type B or single -wall metal pipe vent serving two or more draft -hood -equipped appliances [see Table 504.3(5)]. FIGURE B-10 ASBESTOS CEMENT TYPE B OR SINGLE -WALL METAL VENT SYSTEM SERVING TWO OR MORE DRAFT -HOOD -EQUIPPED APPLIANCES 2018 INTERNATIONAL FUEL GAS CODE® 155 Copyright © 2017 ICC. ALL RIGHTS RESERVED. Accessed by Heather Van Dine (hvandine@friendswood.com), (City of Friendswood) Order Number #100817036 on Jan is, 2020 06:5o AM (PST) pursuant to License Agreement with ICC. No further reproduction, no further reproductions by any third party, or distribution authorized. Single user only, copying and networking prohibited. ANY UNAUTHORIZED REPRODUCTION OR DISTRIBUTION IS A VIOLATION OF THE FEDERAL COPYRIGHT ACT AND THE LICENSE AGREEMENT, AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER. /9»=I01U]E41-1 100817036 Example: Manifolded Common Vent Connector LM shall be not greater than 18 times the common vent connector manifold inside diameter; i.e., a 4-inch (102 mm) inside diameter common vent connector manifold shall not exceed 72 inches (1829 mm) in length (see Section 504.3.4). Note: This is an illustration of atypical manifolded vent connector. Different appliance, vent connector, or common vent types are possible. Consult Section 502.3. FIGURE B-11 USE OF MANIFOLD COMMON VENT CONNECTOR Example: Offset Common Vent Note: This is an illustration of atypical offset vent. Different appliance, vent connector, or vent types are possible. Consult Sections 504.2 and 504.3. FIGURE B-12 USE OF OFFSET COMMON VENT VENT CONNECTOR c TEE SAME SIZE AS SEGMENTABOVE 'COMMON VENT SIZE BASED ON ALL INPUTS ENTERING THIS SEGMENT, AND AVAILABLE TOTAL HEIGHT 'AVAILABLE TOTAL HEIGHT "H" EQUALS RISE PLUS DISTANCE BETWEEN TEES 'TOTAL INPUT TEE SAME SIZE AS SEGMENT ABOVE RISE INCREASEVENT CONNECTOR SIZE IF NECESSARY 11 BTU/H I INPUT OTHER INPUTS FROM BELOW Vent connector size depends on: Common vent size depends on: • Input • Combined inputs • Rise • Available total height "H' • Available total height "H" • Table 504.3(1) common vent • Table 504.3(1) connectors FIGURE B-13 MULTISTORY GAS VENT DESIGN PROCEDURE FOR EACH SEGMENT OF SYSTEM USE INDIVIDUAL\ CAP VENT FOR , __LISTED TOP FLOOR APPLIANCE IF CONNECTOR REQUIREMENT FOR RISE OF TOTAL HEIGHT CANNOT USE AVAILABLE TOTAL HEIGHT FOR TOP FLOORAPPLIANCE AND COMBINED INPUT BE MET AVAILAOF AL ALLAPPLIANCES ON COMMON VENT FORT HEIGHTFORTOP HEIGHT FLOORAPPLIANCE USE VENT CONNECTOR TABLE ��' (THIRD INTERCONNECTION TEE" AVAILABLE TOTAL H EIGHT FOR THIRD RISE FLOORAPPLIANCE AVAILABLE TOTAL HEIGHT FORTHIRD FLOOR TOP FLOORAPPLIANCE APPLIANCE AND COMBINED INPUT OF THREE APPLANCES (IF TOP FLOOR APPLIANCE IS NOT 4 CONNECTED, MEASURED TOTAL HEIGHT TO V ENT TOP) USE VENT CONN ECTOR TABLE TIONTEE" USE AVAILABLE TOTAL H EIGHT FOR SECOND FLOORAPPLIANCE AND COMBINED HEAT INPUT THIRD FLOORAPPLIANCEOF T TWOAPPLIANCES AVAILABLE TOTAL HEIGHT FOR SECOND FLOORAPPLIANCE FIRST INTERCONNECTION TEE' USE VENT CONNECTOR TABLE SECOND FLOORAPPLIANCE DESIGN VENT CONNECTOR FOR FIRST FUAL RAPVENT 2 OF THIS TOAIN TAL INDIVIDUAL VENT OF THIS TOTAL HEIGHT FOR INPUT OF FIRST FLOORAPPLIANCE USE VENT CONNECTOR TABLE - FIRST FLOOR APPLIANCE -,J�j \ TEE WITH CAP OPTIONAL "EA CH INTERCONNECTION TEE IS SAME SIZE AS THE SEGMENT OF COMMON VENT DIRECTLY ABOVE Principles of design of multistory vents using vent connector and common vent design tables (see Sections 504.3.11 through 504.3.17). FIGURE B-14 MULTISTORY VENT SYSTEMS 166 2018 INTERNATIONAL FUEL GAS CODE® Copy,,ght 8 201L ICC ALL RIGHTS RESERVED A... s,d by H,ath,, Va. Dme (h,-v h.,@fnevdswood com), (Qty,f F-.d--d) O,d,, Numb-100a1 0—. j- 11, ww o5 so AM (PST) pug —t t, U...s, Ag... —t-thICC Nofu,thereprod.,tiov,vofu,th,,,,produchovsbya.yth�,dpa,ry,o,d�st,'buhovauth....d Smgleu , .Iy,c,pymg-d-t-1,mg proh�lAt,a ANY UNAUTHORIZED REPRODUCTION OR DISTRIBUTION IS A VIOLATION OF THE FEDERAL COPYRIGHT ACT AND THE LICENSE AGREEMENT, AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER 1•dl„;1 01 Q K41 C] 100817036 For SL 1 foot = 304.8 min, 1 British thermal unit per hour = 0.2931 W FIGURE B-16 (EXAMPLE 1) SINGLE DRAFT -HOOD -EQUIPPED APPLIANCE Example 2: Single fan -assisted appliance. An installer has an 80,000 Btu per hour input fan -assisted appliance that must be installed using 10 feet of lateral con- nector attached to a 30-foot-high Type B vent. Two 90- degree elbows are needed for the installation. Can a single - wall metal vent connector be used for this application? Solution: Table 504.2(2) refers to the use of single -wall metal vent con- nectors with Type B vent. In the first column find the row associated with a 30-foot height and a 10-foot lateral. Read across this row, looking at the FAN Min and FAN Max col- umns, to find that a 3-inch-diameter single -wall metal vent connector is not recommended. Moving to the neat larger size single wall connector (4 inches), note that a 4-inch-diameter single -wall metal connector has a recommended minimum vent capacity of 91,000 Btu per hour and a recommended maximum vent capacity of 144,000 Btu per hour. The 80,000 Btu per hour fan -assisted appliance is outside this range, so the conclusion is that a single -wall metal vent connector can- not be used to vent this appliance using 10 feet of lateral for the connector. However, if the 80,000 Btu per hour input appliance could be moved to within 5 feet of the vertical vent, then a 4-inch single -wall metal connector could be used to vent the appliance. Table 504.2(2) shows the acceptable range of vent capacities for a 4-inch vent with 5 feet of lateral to be between 72,000 Btu per hour and 157,000 Btu per hour. TYPE-B DOUBLE -WALL GAS VENT I I I I I I I I I I I I 30 FT 10 FT LATERAL VENTCONNECTOR FAN ASSISTED APPLIANCE 80,000 BTU/H INPUT For SL 1 foot = 304.8 min, 1 British thermal unit per hour = 0.2931 W. FIGURE B-16 (EXAMPLE 2) SINGLE FAN -ASSISTED APPLIANCE If the appliance cannot be moved closer to the vertical vent, then Type B vent could be used as the connector material. In this case, Table 504.2(1) shows that for a 30-foot- high vent with 10 feet of lateral, the acceptable range of vent capacities for a 4-inch-diameter vent attached to a fan - assisted appliance is between 37,000 Btu per hour and 150,000 Btu per hour. Example 3: Interpolating between table values. An installer has an 80,000 Btu per hour input appliance with a 4-inch-diameter draft hood outlet that needs to be vented into a 12-foot-high Type B vent. The vent connector has a 5- foot lateral length and is also Type B. Can this appliance be vented using a 4-inch-diameter vent? Solution: Table 504.2(1) is used in the case of an all Type B vent sys- tem. However, since there is no entry in Table 504.2(1) for a height of 12 feet, interpolation must be used. Read down the 4-inch diameter NAT Max column to the row associated with 10-foot height and 5-foot lateral to find the capacity value of 77,000 Btu per hour. Read further down to the 15-foot height, 5-foot lateral row to find the capacity value of 87,000 Btu per hour. The difference between the 15-foot height capacity value and the 10-foot height capacity value is 10,000 Btu per hour. The capacity for a vent system with a 12-foot height is equal to the capacity for a 10-foot height plus 2/s of the differ- ence between the 10-foot and 15-foot height values, or 77,000 + 2/s (10,000) = 81,000 Btu per hour. Therefore, a 4- inch-diameter vent can be used in the installation. 2018 INTERNATIONAL FUEL GAS CODE® 167 Copyight @ 2017ICC ALL RIGHTS RESERVED A ... —d by H2Oh,, Va Di., (h,-J,.,@fn ds d coin), (City f F,Ods d) O,d,, Numb,, #100817036 ov Ja 15, ww 06 so AM (PST) pins t IF Lmevse Ag... mevcwith ICC Nofu,therep,,d.,tiov,vofu,th,,,,p,,duchovsbya.ythi,dpa,ry,o,dlst,lbuhovauth,,lz,d Singleuse,ovly,c,pyi.g-d.,twodavg prohibited ANY UNAUTHORIZED REPRODUCTION OR DISTRIBUTION IS A VIOLATION OF THE FEDERAL COPYRIGHT ACT AND THE LICENSE AGREEMENT, AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER /9»=I0U]E41-3 100817036 EXAMPLES USING COMMON VENTING TABLES Example 4: Common venting two draft -hood -equipped appliances. A 35,000 Btu per hour water heater is to be common vented with a 150,000 Btu per hour furnace using a common vent with a total height of 30 feet. The connector rise is 2 feet for the water heater with a horizontal length of 4 feet. The con- nector rise for the furnace is 3 feet with a horizontal length of 8 feet. Assume single -wall metal connectors will be used with Type B vent. What size connectors and combined vent should be used in this installation? Solution: Table 504.3(2) should be used to size single -wall metal vent connectors attached to Type B vertical vents. In the vent con- nector capacity portion of Table 504.3(2), find the row asso- ciated with a 30-foot vent height. For a 2-foot rise on the vent connector for the water heater, read the shaded columns for draft -hood -equipped appliances to find that a 3-inch-diameter vent connector has a capacity of 37,000 Btu per hour. There- fore, a 3-inch single -wall metal vent connector can be used with the water heater. For a draft -hood -equipped furnace with a 3-foot rise, read across the appropriate row to find that a 5- inch-diameter vent connector has a maximum capacity of 120,000 Btu per hour (which is too small for the furnace) and a 6-inch-diameter vent connector has a maximum vent capac- ity of 172,000 Btu per hour. Therefore, a 6-inch-diameter vent connector should be used with the 150,000 Btu per hour furnace. Since both vent connector horizontal lengths are less than the maximum lengths listed in Section 504.3.2, the table values can be used without adjustments. DRAFT -HOOD -EQUIPPED DRAFT -HOOD -EQUIPPED WATER HEATER FURNACE 35,000 BTU/H INPUT 150,000 BTWH INPUT FIGURE B-17 (EXAMPLE 4) COMMON VENTING TWO DRAFT - HOOD -EQUIPPED APPLIANCES In the common vent capacity portion of Table 504.3(2), find the row associated with a 30-foot vent height and read over to the NAT + NAT portion of the 6-inch-diameter column to find a maximum combined capacity of 257,000 Btu per hour. Since the two appliances total only 185,000 Btu per hour, a 6-inch common vent can be used. Example 5a: Common venting a draft -hood -equipped water heater with a fan -assisted furnace into a Type B vent. In this case, a 35,000 Btu per hour input draft -hood - equipped water heater with a 4-inch-diameter draft hood outlet, 2 feet of connector rise, and 4 feet of horizontal length is to be common vented with a 100,000 Btu per hour fan - assisted furnace with a 4-inch-diameter flue collar, 3 feet of connector rise, and 6 feet of horizontal length. The common vent consists of a 30-foot height of Type B vent. What are the recommended vent diameters for each connector and the common vent? The installer would like to use a single -wall metal vent connector. Solution: [Table 504.3(2)]. Water Heater Vent Connector Diameter. Since the water heater vent connector horizontal length of 4 feet is less than the maximum value listed in Section 504.3.2, the venting table values can be used without adjustments. Using the Vent Connector Capacity portion of Table 504.3 (2), read down the Total Vent Height (H) column to 30 feet and read across the 2-foot Connector Rise (R) row to the first Btu per hour rating in the NAT Max column that is equal to or greater than the water heater input rating. The table shows that a 3-inch vent connector has a maximum input rating of 37,000 Btu per FIGURE B-18 (EXAMPLE 5A) COMMON VENTING A DRAFT HOOD WITH A FAN -ASSISTED FURNACE INTO A TYPE B DOUBLE -WALL COMMON VENT 168 2018 INTERNATIONAL FUEL GAS CODE® Copyight @ 2015ICC ALL RIGHTS RESERVED A ... —d by H2Oh,, Va Di., (h,-J,.,@fn ds d coin), (City f F,Ods d) O,d,, Numb,, #100817036 ov Ja 15, ww 05 so AM (PST) pins t IF Lmevse Ag... mevcwith ICC Nofu,therep,,d.,tiov,vofu,th,,,,p,,duchovsbya.ythi,dpa,ry,o,dlst,lbuhovauth,,lz,d Singleuse,ovly,c,pyi.g-d.,twodavg prohibited ANY UNAUTHORIZED REPRODUCTION OR DISTRIBUTION IS A VIOLATION OF THE FEDERAL COPYRIGHT ACT AND THE LICENSE AGREEMENT, AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER APPENDIX B hour Although this is greater than the water heater input rat - mg, a 3-mch vent connector is prolubited by Section 504 3 21 A 4-inch vent connector has a maximum input rat - mg of 67,000 Btu per hour and is equal to the draft hood out- let diameter A 4-inch vent connector is selected Since the water heater is equipped with a draft hood, there are no mini- mum input rating restrictions Furnace Vent Connector Diameter Using the Vent Connector Capacity portion of Table 504 3(2), read down the Total Vent Height (H) column to 30 feet and across the 3-foot Connector Rise (R) row Since the furnace has a fan -assisted combustion system, find the first FAN Max column with a Btu per hour rating greater than the furnace input rating The 4-mch vent connector has a maximum input rating of 119,000 Btu per hour and a minimum input rating of 85,000 Btu per hour The 100,000 Btu per hour furnace in this example falls within this range, so a 4-mch connector is adequate Since the furnace vent connector horizontal length of 6 feet does not exceed the maximum value listed in Section 504 3 2, the venting table values can be used without adjustment If the furnace had an input rating of 80,000 Btu per hour, then a Type B vent connector [see Table 504 3(1)] would be needed in order to meet the minimum capacity limit Common Vent Diameter The total input to the common vent is 135,000 Btu per hour Using the Common Vent Capacity portion of Table 504 3(2), read down the Total Vent Height (H) column to 30 feet and across this row to find the smallest vent diameter in the FAN + NAT column that has a Btu per hour rating equal to or greater than 135,000 Btu per hour The 4-inch common vent has a capacity of 132,000 Btu per hour and the 5-inch common vent has a capacity of 202,000 Btu per hour Therefore, the 5-mch common vent should be used in this example Summary In this example, the installer can use a 4-inch- diameter, single -wall metal vent connector for the water heater and a 4-inch-diameter, single -wall metal vent connector for the furnace The common vent should be a 5- mch-diameter Type B vent Example 5b: Common venting into a masonry chimney. In this case, the water heater and fan -assisted furnace of Example 5a are to be common vented into a clay the -lined masonry chimney with a 30-foot height The chimney is not exposed to the outdoors below the roof line The internal dimensions of the clay the liner are nominally 8 inches by 12 inches Assuming the same vent connector heights, laterals, and materials found in Example 5a, what are the recom- mended vent connector diameters, and is this an acceptable installation? Solution: Table 504 3(4) is used to size common venting installations involving single -wall connectors into masonry chimneys Water Heater Vent Connector Diameter Using Table 504 3(4), Vent Connector Capacity, read down the Total Vent Height (H) column to 30 feet, and read across the 2-foot Connector Rise (R) row to the first Btu per hour rating in the NAT Max column that is equal to or greater than the water heater input rating The table shows that a 3-inch vent connector has a maximum input of only 31,000 Btu per hour while a 4-inch vent connector has a maximum input of 57,000 Btu per hour A 4-inch vent connector must therefore be used Furnace Vent Connector Diameter Using the Vent Connector Capacity portion of Table 504 3(4), read down the Total Vent Height (H) column to 30 feet and across the 3-foot Connector Rise (R) row Since the furnace has a fan -assisted combustion system, find the first FAN Max column with a Btu per hour rating greater than the furnace input rating The 4-inch vent connector has a maximum input rating of 127,000 Btu per hour and a minimum input rating of 95,000 Btu per hour The 100,000 Btu per hour furnace in this example falls within this range, so a 4-inch connector is adequate Masonry Chimney From Table B-1, the equivalent area for a nominal liner size of 8 inches by 12 inches is 63 6 square inches Using Table 5043(4), Common Vent Capacity, read down the FAN + NAT column under the Minimum Internal Area of Chimney value of 63 to the row for 30-foot height to find a capacity value of 739,000 Btu per hour The combined input rating of the furnace and water heater, 135,000 Btu per hour, is less than the table value, so this is an acceptable installation Section 504 3 17 requires the common vent area to be not greater than seven times the smallest listed appliance categorized vent area, flue collar area, or draft hood outlet area Both appliances in this installation have 4-inch-diameter outlets From Table B-1, the equivalent area for an inside diameter of 4 inches is 12 2 square inches Seven tunes 12 2 equals 85 4, which is greater than 63 6, so this configuration is acceptable Example 5c: Common venting into an exterior masonry chimney. In this case, the water heater and fan -assisted furnace of Examples 5a and 5b are to be common vented into an exterior masonry chimney The chimney height, clay the liner dimen- sions, and vent connector heights and laterals are the same as in Example 5b This system is being installed in Charlotte, North Carolina Does this exterior masonry chimney need to be relined? If so, what corrugated metallic liner size is recom- mended? What vent connector diameters are recommended? Solution: In accordance with Section 504 3 20, Type B vent connectors are required to be used with exterior masonry chimneys Use Tables 504 3(7a), (7b) to size FAN+NAT common venting installations involving Type-B double wall connectors into exterior masonry chimneys The local 99-percent winter design temperature needed to use Table 504 3(7b) can be found in the ASHRAE Handbook of Fundamentals. For Charlotte, North Carolina, this design temperature is 19°F Chimney Liner Requirement As in Example 5b, use the 63 square inch Internal Area columns for this size clay the liner Read down the 63 square inch column of Table 504 3(7a) to the 30-foot height row to find that the combined appliance maximum input is 747,000 Btu per hour The combined input rating of the appliances in this installation, 135,000 Btu per hour, is less than the maximum value, so this 2018 INTERNAT10NAL FUEL GAS CODE" 159 I I I I CITFIght @ 2017 ICC ALL RIGHTS RESERVED A—LDd by H®Ih¢ Van Dme(Rv dme pooch od om),(Dty of FRmdNmod)O[do, Nomb,,*1008170S601 JM 15. ZMO oc 51 AM (PET) t to ( Lie Affiee^® Rt, ICC No fwN¢[TAodomoo.m AtO,Pepeodomo- by any Ot Party o, Axmboemdm6o d Mglo—ody mpyncg and Nyodwg LARISAd ANY VNAVTHO RIVER REICLA VCTION OR DISIRIBITTO N IS A VIOLATION OF THE FEDERAL COPYRIGHT ACT AND THE LICENSE AGREEMENT. AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER APPENDIX B criterion is satisfied Table 504 3(7b), at a 19°F design temperature, and at the same vent height and internal area used above, shows that the minimum allowable input rating of a space -heating appliance is 470,000 Btu per hour The furnace input rating of 100,000 Btu per hour is less than this minimum value So this criterion is not satisfied, and an alternative venting design needs to be used, such as a Type B vent shown in Example 5a or a listed chimney liner system shown in the remainder of the example In accordance with Section 5043 19, Table 5043(1) or 504 3(2) is used for sizing corrugated metallic liners in masonry chimneys, with the maximum common vent capacities reduced by 20 percent This example will be continued assuming Type B vent connectors Water Heater Vent Connector Diameter Using Table 504 3(1), Vent Connector Capacity, read down the Total Vent Height O column to 30 feet, and read across the 2-foot Connector Rise (R) row to the first Btu/h rating in the NAT Max column that is equal to or greater than the water heater input rating The table shows that a 3-inch vent connector has a maximum capacity of 39,000 Btu/h Although this rating is greater than the water heater input rating, a 3-inch vent connector is prohibited by Section 504 3 21 A 4-inch vent connector has a maximum input rating of 70,000 Btu/h and is equal to the draft hood outlet diameter A 4-inch vent connector is selected Furnace Vent Connector Diameter Using Table 504 3(1), Vent Connector Capacity, read down the Vent Height ( ) column to 30 feet, and read across the 3-foot Connector Rise (R) row to the first Btu per hour rating in the FAN Max column that is equal to or greater than the furnace input rating The 100,000 Btu per hour furnace in this example falls within this range, so a 4-inch connector is adequate Chimney Liner Diameter The total input to the common vent is 135,000 Btu per hour Using the Common Vent Capacity Portion of Table 5043(1), read down the Vent Height O column to 30 feet and across this row to find the smallest vent diameter in the FAN+NAT column that has a Btu per hour rating greater than 135,000 Btu per hour The 4- inch common vent has a capacity of 138,000 Btu per hour Reducing the maximum capacity by 20 percent (Section 504 3 19) results in a maximum capacity for a 4-inch corrugated liner of I10,000 Btu per hour, less than the total input of 135,000 Btu per hour So a larger liner is needed The 5-inch common vent capacity listed in Table 504 3(1) is 210,000 Btu per hour, and after reducing by 20 percent is 168,000 Btu per hour Therefore, a 5-inch corrugated metal liner should be used in this example Single -Wall Connectors Once it has been established that relining the chimney is necessary, Type B double -wall vent connectors are not specifically required This example could be redone using Table 504 3(2) for single -wall vent connectors For this case, the vent connector and liner diameters would be the same as found above with Type B double -wall connectors TABLE B-1 MASONRY CHIMNEY LINER DIMENSIONS WITH CIRCULAR EQUIVALENTS' NOMINAL LINER SIZE (inches) INSIDE DIMENSIONS OF LINER (inches) INSIDE DIAMETER OR EQUIVALENT DIAMETER (inches) EQUIVALENT AREA (square inches) 4 x 8 21/2x61/ 4 122 5 196 6 283 7 383 8 x 8 63/4 x 63/ 74 427 8 503 8 x 12 61/2 x 101/ 9 636 10 785 12 x 12 93/4 x 9 f/ 104 833 11 95 12x16 91/x131/2 11 8 1075 12 1130 14 1539 16 x 16 131/4 x 131/4 145 1629 5 1767 16 x 20 13 x 17 162 206 1 18 2544 20 x 20 163/ x 163/ 182 2602 20 14314 1 20 x 24 161/2 x 20'/2 20 1 3142 22 3801 24 x 24 201/4 x 201/4 22 1 1 24 452 3 52 24 x 28 201/4 x 201/4 24 1 4562 28 x 28 241/4 x 241/4 264 5433 27 5725 30 x 30 251/2 x 251/2 279 607 30 7068 30 x 36 25'/2 x 311/2 309 7499 33 8553 36 x 36 311/2 x 311/2 344 9294 36 10179 For SI 1 inch = 25 4 min, 1 square inch = 645 16 m' a Where Inver sizes differ dimensionally from those shown in Table B-1, equivalent diameters can be determined from published tables for square and rectangular ducts of equivalent carrying capacity or by other engineering methods 160 2018 INTERNATIONAL FUEL GAS CODE" S ( firill ' UER(Aryaght Oo 2.017 ICC ALL RIGHTS RESERVED A—LDd by H®Ih¢ Van Dme(Rv dme pooch od om),(Qty of FRmdNmod) O[do, Nomb,,*1008170S601 JM 15, m0 0651 AM (PET) mt to I1, xAg,e^ '^Rt, ICC Nootths TAodomoam Athsodomo-by any Ot Party o[Axmboemdmho[vsd Mglo— o,IAo, and Nyodwg L-IRISed ANY VNAVTHO OLDER REPROD VCIION OR D ISIRIEVTION IS VIOLATION OP THE FEDERAL COPYRIGHT 11 AND THE LICENSE AGREEMEoff . AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER /9»4kiU]EA-3 100817036 LL U r N LL (� LL U T' N L Lt o T U � w� zc' 2018 INTERNATIONAL FUEL GAS CODE® 161 Copy�ght @ 2m9ICC ALL RIGHTS RESERVED A,,,.,d by Heath,, Va. Dme (h,-v h.e@fnevd—ood com), (C,ty of F—,O-ood) O,de, Number tt100815036 ov Jav 15, 2020 06 so AM (PST) p—.-t co Lmevse Ag... m,.t-thICC Nofu,thereproductiov,vofu,the,,,produchovsbya.yth�,dpa,ry,o,d�st,'buho.a.tho,.,d SmgI,.—ovly, copymg-d-twodavg proh�]At,a ANY UNAUTHORIZED REPRODUCTION OR DISTRIBUTION IS A VIOLATION OF THE FEDERAL COPYRIGHT ACT AND THE LICENSE AGREEMENT, AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER 162 2018 INTERNATIONAL FUEL GAS CODE" firill ' UER CopynghtOo2.017 ICC ALL RIGHTS RESERVED A—LDdby H®Ih¢Van Cm,(Rvdme Oo,d—od om),(Qty of FRmdNmod)O[d6N=b6*1008170S601 JM 15, ZMO 0651 AM(PET)p,,mmt to S I ( I,—Ag,—^ '^M, ICC Nootths,Aodomo,,oALhsodomo-by any Ot Party o[Axmboemd,Oo[vsd Mglo— odyWpyaog and,yodwg GMIRISed ANY VNAVTHO OLDER REPROD ,,MN OR D ISIRIEVTION IS VIOLATION OP THE FEDERAL COPYRIGHT 11 AND THE LICENSE AGREEMENT, AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER 100817036 APPENDIX C (IFGS) EXIT TERMINALS OF MECHANICAL DRAFT AND DIRECT -VENT VENTING SYSTEMS This appendix is informative and is not part of the code. User note: About this appendix: Appendix C provides a graphic depiction of the venting terminal location requirements of the code. -CHANICAL DRAFT _NT TERMINAL EE SECTION 503.8, ITEM 11 DIRECT -VENT TERMINAL CLEARAN( MINIMUM CLEARANCE, C [SEE SECTION 503.8, ITEM 31 &ET For SI: 1 inch = 25.4 mm, 1 foot = 304.8 mm, 1 British thermal unit per hour = 0.2931 W. APPENDIX C EXIT TERMINALS OF MECHANICAL DRAFT AND DIRECT -VENT VENTING SYSTEMS 2018 INTERNATIONAL FUEL GAS CODE® 163 ' Copyright © 2017ICC. ALL RIGHTS RESERVED. Accessed by Heather Van Dine (hvandine@friendswood.com), (City of Friendswood) Order Number u100817036 on Jan 15, 2020 06:50 AM (PST) pursuant to I y License Agreement with ICC. No further reproduction, no further reproductions by any third party, or distribution authorized. Single user only, copying and networking prohibited. ANY UNAUTHORIZED REPRODUCTION OR DISTRIBUTION IS A VIOLATION OF THE FEDERAL COPYRIGHT ACT AND THE LICENSE AGREEMENT, AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER. 164 2018 INTERNATIONAL FUEL GAS CODE" firill ' UER CopynghtOo2.017 ICC ALL RIGHTS RESERVED A—LDdby H®Ih¢Van Cm,(Rvdme Oo,d—od om),(Qty of FRmdNmod)O[d6N=b6*1008170S601 JM 15, ZMO 0651 AM(PET)p,,mmt to S I ( I,—Ag,—^ '^M, ICC Nootths,Aodomo,,oALhsodomo-by any Ot Party o[Axmboemd,Oo[vsd Mglo— odyWpyaog and,yodwg GMIRISed ANY VNAVTHO OLDER REPROD ,,MN OR D ISIRIEVTION IS VIOLATION OP THE FEDERAL COPYRIGHT 11 AND THE LICENSE AGREEMENT, AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER APPENDIX D (IFGS) RECOMMENDED PROCEDURE FOR SAFETY INSPECTION OF AN EXISTING APPLIANCE INSTALLATION This appendix is not apart of the requirements of this code and is included for Informational purposes only. User note: About this appendix: Appendix D provides procedures for testing and inspecting existing gas appliance installations for safe operation. DA General. The following procedure is intended as a guide to aid in determining that an appliance is properly installed and is in a safe condition for continued use Where a gas sup- plier performs an inspection, their written procedures should be followed D.Ll Application. This procedure is intended for existing residential installations of a furnace, boiler, room heater, water heater, cooking appliance, fireplace appliance and clothes dryer This procedure should be performed prior to any attempt to modify the appliance installation or building envelope D.1.2 Weatherization programs. Before a building enve- lope is to be modified as part of a weatherization program, the existing appliance installation should be inspected in accor- dance with these procedures After all unsafe conditions are repaired, and immediately after the weatherization is com- plete, the appliance inspections in D 5 2 are to be repeated D.1.3 Inspection procedure. The safety of the building occupant and inspector are to be determined as the first step as described in D 2 Only after the ambient environment is found to be safe should inspections of gas piping and appli- ances be undertaken It is recommended that all inspections described in D 3, D 4, and D 6, where the appliance is in the off mode, be completed and any unsafe conditions repaired or corrected before continuing with inspections of an operating appliance described in D 5 and D 6 D.1.4 Manufacturer instructions. Where available, the manufacturer's installation and operating instructions for the installed appliances should be used as part of these inspection procedures to detenmme if it is installed correctly and is oper- ating properly D.1.5 Instruments. The inspection procedures include mea- suring for fuel gas and carbon monoxide (CO) and will require the use of a combustible gas detector (CGD) and a CO detector It is recommended that both types of detectors be listed Prior to any inspection, the detectors should be cali- brated or tested in accordance with the manufacturer's instructions In addition, it is recommended that the detectors have the following minimum specifications (1) Gas Detector. The CGD should be capable of indicating the presence of the type of fuel gas for which it is to be used (e g natural gas or propane) The combustible gas detector should be capable of the following a PPM: Numeric display with a parts per million (ppm) scale from 1 ppm to 900 ppm in 1 ppm increments b LEL: Numeric display with a percent lower explosive limit (% LEL) scale from 0 percent to 100 percent in 1 percent increments c Audio: An audio sound feature to locate leaks (2) CO Detector. The CO detector should be capable of the following functions and have a numeric display scale as follows a PPM: For measuring ambient room and appliance emissions a display scale in parts per million (ppm) from 0 to 1,000 ppm in 1 ppm increments b Alarm: A sound alarm function where hazardous levels of ambient CO is found (see D 2 for alarm levels) c Air Free: Capable of converting CO measurements to an au free level in ppm Where a CO detector is used without an au free conversion function, the CO au free can be calculated in accordance with footnote 3 in Table D 6 D.2 Occupant and inspector safety. Prior to entering a building, the inspector should have both a combustible gas detector (CGD) and CO detector turned on, calibrated, and operating Immediately upon entering the building, a sample of the ambient atmosphere should be taken Based on CGD and CO detector readings, the inspector should take the fol- lowing actions (1) The CO detector indicates a carbon monoxide level of 70 ppm or greater' The inspector should immediately notify the occupant of the need for themselves and any building occupant to evacuate, the inspector shall immediately evacuate and call 911 (2) Where the CO detector indicates a reading between 30 ppm and 70 ppm' The inspector should advise the occupant that high CO levels have been found and recommend that all possible sources of CO should be turned off immediately and windows and doors opened Where it appears that the source of CO is a permanently installed appliance, advise the occupant to keep the appliance off and have the appliance serviced by a qualified servicing agent (3) Where CO detector indicates CO below 30 ppm' the inspection can continue (4) The CGD indicates a combustible gas level of 20% LEL or greater The inspector should immediately notify the occupant of the need for themselves and any ' U S Consumer Product Safety Commission, Responding to Residential Carbon Monoxide Incidents, Guidelines for Fire and Other Emergency Response Personnel, Approved 7/23/02 2018 INTERNAT10NAL FUEL GAS CODE® 165 I 11 1 CopyrightOo2.017 ICC ALL RIGHTS RESERVED Awned by H®Ih¢ Van DmA(Rvdme Oo,dA od om),(Qty of FRmdNmod)O[do,N=b,,*1008170S601 JM 15, ZMO oc 51 AM(PET)puArvant to ( LEA Affiee^® Rt, ICC No fwN¢[TAodomo,,m AtO,«odomo- by any Ot Party o, AAmboemd,Oo[vsd Mglo—ody mpyncg and Nyodwg L,oIRbAd ANY VNAUTHO RIVER REPRODUCTION OR DISTRIBUTION IS VIOLATION OF THE FEDERAL COPYRIGHT ACT AND THE LICENSE AGREEMENT. AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER APPENDIX D building occupant to evacuate, the inspector shall immediately evacuate and call 911 (5) The CGD indicates a combustible gas level below 20% LEL, the inspection can continue If during the inspection process it is detennmed a condition exists that could result in unsafe appliance operation, shut off the appliance and advise the owner of the unsafe condition Where a gas leak is found that could result in an unsafe con- dition, advise the owner of the unsafe condition and call the gas supplier to turn off the gas supply The inspector should not continue a safety inspection on an operating appliance, venting system, and piping system until repairs have been made D.3 Gas piping and connection inspections. (1) Leak Checks. Conduct a test for gas leakage using either a non -corrosive leak detection solution or a CGD confirmed with a leak detection solution The preferred method for leak checking is by use of gas leak detection solution applied to all joints This method provides a reliable visual indication of significant leaks The use of a CGD in its audio sensing mode can quickly locate suspect leaks but can be overly sensitive indicating insignificant and false leaks All suspect leaks found through the use of a CGD should be confirmed using a leak detection solution Where gas leakage is confirmed, the owner should be notified that repairs must be made The inspection should include the following components a All gas piping fittings located within the appliance space b Appliance connector fittings c Appliance gas valve/regulator housing and connections (2) Appliance Connector Verify that the appliance connection type is compliant with Section 411 of the International Fuel Gas Code Inspect flexible appliance connections to determine if they are free of cracks, corrosion and signs of damage Verify that there are no uncoated brass connectors Where connectors are detennmed to be unsafe or where an uncoated brass connector is found, the appliance shutoff valve should be placed in the off position and the owner notified that the connector must be replaced (3) Piping Support Inspect piping to determine that it is adequately supported, that there is no undue stress on the piping, and if there are any improperly capped pipe openings (4) Bonding Verify that the electrical bonding of gas piping is compliant with Section 310 of the International Fuel Gas Code DA Inspections to be performed with the appliance not operating. The following safety inspection procedures are performed on appliances that are not operating These inspec- tions are applicable to all appliance installations (1) Preparing for Inspection Shut off all gas and electrical power to the appliances located in the same room being inspected For gas supply, use the shutoff valve in the supply line or at the manifold serving each appliance For electrical power, place the circuit breaker in the off position or remove the fuse that serves each appliance A lock type device or tag should be installed on each gas shutoff valve and at the electrical panel to indicate that the service has been shut off for inspection purposes (2) Vent System Size and Installation Verify that the existing venting system size and installation are compliant with Chapter 5 of the International Fuel Gas Code The size and installation of venting systems for other than natural draft and Category I appliances should be in compliance with the manufacturer's installation instructions Inspect the venting system to detennme that it is free of blockage, restriction, leakage, corrosion, and other deficiencies that could cause an unsafe condition Inspect masonry chimneys to detennme if they are lined Inspect plastic venting system to detennme that it is free of sagging and it is sloped in an upward direction to the outdoor vent term matron (3) Combustion Air Supply Inspect provisions for combustion air as follows a No Direct -vent Appliances Determme that non - direct vent appliance installations are compliant with the combustion air requirements in Section 304 of the International Fuel Gas Code Inspect any interior and exterior combustion air openings and any connected combustion air ducts to determine that there is no blockage, restriction, corrosion or damage Inspect to detennme that the upper horizontal combustion air duct is not sloped in a downward direction toward the au supply source b Direct Vent Appliances Verify that the combustion air supply ducts and pipes are securely fastened to direct vent appliance and determine that there are no separations, blockage, restriction, corrosion or other damage Determme that the combustion air source is located in the outdoors or to areas that freely communicate to the outdoors c Unvented Appliances Verify that the total input of all invented room heaters and gas -fired refrigerators installed in the same room or rooms that freely communicate with each other does not exceed 20 Btu/hr/ft' ' U S Consumer Product Safety Commission, Responding to Residential Carbon Monoxide Incidents, Guidelines For Fire and Other Emergency Response Personnel, Approved 7/23/02 166 2018 INTERNATIONAL FUEL GAS CODE® CopyrightOo2.017 ICC ALL RIGHTS RESERVED A—LDd by H®Ih¢ Van DmA(Rv dmepfnmdA od om),(Dty of FRmdNmod)O[do,N=b,,*1008170S601 JM 15, ZMO oc 51 AM (GET) mt to rk ff., I ff., FrITITFrITITIRR 1, Ag,'^Rt, ICC Nootths TAodomo,,m AtOyodomo-by any Ot Party o[AAmboemd,Oo[vsd Mx10—o,IAo, and Nyodwg GMIRISAd ANY VNAUTHO OLDER REPRODU,MN OR D ISIRIEUTION IS VIOLATION OP THE FEDERAL COPYRIGHT 11 AND THE LICENSE AGRE EM ENT. AND REJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER APPENDIX D (4) Flooded Appliances Inspect the appliance for signs that the appliance may have been damaged by flooding Signs of flooding include a visible water submerge line on the appliance housing, excessive surface or component rust, deposited debris on internal components, and mildew -like odor Inform the owner that any part of the appliance control system and any appliance gas control that has been under water must be replaced All flood -damaged plumbing, heating, cooling and electrical appliances should be replaced (5) Flammable Vapors Inspect the room/space where the appliance is installed to determine if the area is free of the storage of gasoline or any flammable products such as oil -based solvents, varnishes or adhesives Where the appliance is installed where flammable products will be stored or used, such as a garage, verify that the appliance bumer(s) is a minimum of 18" above the floor unless the appliance is listed as flammable vapor ignition resistant (6) Clearances to Combustibles Inspect the immediate location where the appliance is installed to determine if the area is free of rags, paper or other combustibles Verify that the appliance and venting system are compliant with clearances to combustible building components in accordance with Sections 305 8, 501 15 4, 502 5, 503 6 2, 503 10 5 and other applicable sections of Section 503 (7) Appliance Components. Inspect internal components by removing access panels or other components for the following a Inspect burners and crossovers for blockage and corrosion The presence of soot, debris, and signs of excessive heating are potential indicators of incomplete combustion caused by blockage or improper burner adjustor ents b Metallic and non-metallic hoses for signs of cracks, splitting, corrosion, and lose connections c Signs of improper or incomplete repairs d Modifications that override controls and safety systems e Electrical wiring for loose connections, cracks, missing or worn electrical insulation, and indications of excessive heat or electrical shorting Appliances requiring an external electrical supply should be inspected for proper electrical connection in accordance with the National Electric Code (8) Placing Appliances Back in Operation Return all inspected appliances and systems to their preexisting state by remstallmg any removed access panels and components Turn on the gas supply and electricity to each appliance found in safe condition Proceed to the operating inspections in D 5 through D 6 D.5 Inspections to be performed with the Appliance Operat- ing. The following safety inspection procedures are to be per- formed on appliances that are operating where there are no unsafe conditions or where corrective repairs have been completed D.5.1 General Appliance Operation. (1) Initial Startup Adjust the thermostat or other control device to start the appliance Verify that the appliance starts up normally and is operating properly Determine that the pilot(s), where provided, is burning properly and that the main burner ignition is satisfactory, by interrupting and re-establishing the electrical supply to the appliance in any convenient manner If the appliance is equipped with a continuous pilot(s), test all pilot safety devices to determine whether they are operating properly by extinguishing the pilot(s) when the main bumer(s) is off and determining, after 3 minutes, that the main burner gas does not flow upon a call for heat If the appliance is not provided with a pilot(s), test for proper operation of the ignition system in accordance with the appliance manufacturer's lighting and operating instructions (2) Flame Appearance Visually inspect the flame appearance for proper color and appearance Visually determine that the main burner gas is burning properly (i e , without floating, lifting, or flashback) Adjust the primary air shutter as required If the appliance is equipped with high and low flame controlling or flame modulation, check for proper main burner operation at low flame (3) Appliance Shutdown Adjust the thermostat or other control device to shut down the appliance Verify that the appliance shuts off properly D.5.2 Test for Combustion Air and Vent Drafting for Nat- ural Draft and Category I Appliances. Combustion air and vent draft procedures are for natural draft and category I appliances equipped with a draft hood and connected to a nat- ural draft venting system (1) Preparing for Inspection Close all exterior building doors and windows and all interior doors between the space in which the appliance is located and other spaces of the building that can be closed Turn on any clothes dryer Turn on any exhaust fans, such as range hoods and bathroom exhausts, so they will operate at maximum speed Do not operate a summer exhaust fan Close fireplace dampers and any fireplace doors (2) Placing the Appliance in Operation Place the appliance being inspected in operation Adjust the thermostat or control so the appliance will operate continuously (3) Spillage Test Verify that all appliances located within the same room are in their standby mode and ready for operation Follow lighting instructions for each appliance as necessary Test for spillage at the draft hood relief opening as follows a After 5 minutes of main burner operation, check for spillage using smoke b Immediately after the first check, turn on all other fuel gas burning appliances within the same room 2018 INTERNAT10NAL FUEL GAS CODE® 167 I 11 1 CoLFIEILOo2.017 ICC ALL RIGHTS RESERVED Awned by H®Ih¢ Van Dme(Rvdme Oo,dv odorm).(Dtyof PnmdNmod)O,do,N=b¢*1008170S601 JM 15, Z.mo 0651 AM (PET) tto ( LEA Affiee^® Rt,ICC NofwN¢[TAodomoo.m AtO,«odomo- by any Ot Party o, AAmboemd,Oo[vsd Mglo—ody mpyncg and Nyodwg L,oIRb¢Ad ANY VNAVTHO RIVER REICLA VCTION OR DISIRIBITTO N IS A VIOLATION OF THE FEDERAL COPYRIGHT ACT AND THE LICENSE AGREEMENT. AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER APPENDIX D so they will operate at their full inputs and repeat the spillage test c Shut down all appliances to their standby mode and wait for 15 minutes d Repeat the spillage test steps a through c on each appliance being inspected (4) Additional Spillage Tests. Determine if the appliance venting is impacted by other door and au handler settings by performing the following tests a Set initial test condition in accordance with D 5 2 (1) b Place the appliance(s) being inspected in operation Adjust the thermostat or control so the appliance(s) will operate continuously c Open the door between the space in which the appliance(s) is located and the rest of the building After 5 minutes of main burner operation, check for spillage at each appliance using smoke d Turn on any other central heating or cooling air handler fan that is located outside of the area where the appliances are being inspected After 5 minutes of main burner operation, check for spillage at each appliance using smoke The test should be conducted with the door between the space in which the appliance(s) is located and the rest of the bwldmg in the open and in the closed position (5) Return doors, windows, exhaust fans, fireplace dampers, and any other fuel gas burning appliance to their previous conditions of use (6) If, after completing the spillage test it is believed sufficient combustion au is not available, the owner should be notified that an alternative combustion air source is needed in accordance with Section 304 of the Intemational Fuel Gas Code Where it is believed that the venting system does not provide adequate natural draft, the owner should be notified that alternative vent sizing, design or configuration is needed in accordance with Chapter 5 of the Intemational Fuel Gas Code If spillage occurs, the owner should be notified as to its cause, be instructed as to which position of the door (open or closed) would lessen its impact, and that corrective action by a H VAC professional should be taken D.6 Appliance -Specific Inspections. The following appli- ance -specific inspections are to be performed as part of a complete inspection These inspections are performed either with the appliance in the off or standby mode (indicated by "OFF") or on an appliance that is operating (indicated by "ON") The CO measurements are to be undertaken only after the appliance is determined to be properly venting The CO detector should be capable of calculating CO emissions in ppm air free (1) Forced Air Furnaces a OFF Verify that an air filter is installed and that it is not excessively blocked with dust b OFF Inspect visible portions of the furnace combustion chamber for cracks, ruptures, holes, and corrosion A heat exchanger leakage test should be conducted c ON Verify both the limit control and the fan control are operating properly Limit control operation can be checked by blocking the circulating air inlet or temporarily disconnecting the electrical supply to the blower motor and determining that the limit control acts to shut off the main burner gas d ON Verify that the blower compartment door is properly installed and can be properly re -secured if opened Verify that the blower compartment door safety switch operates properly e ON Check for flame disturbance before and after blower comes on which can indicate heat exchanger leaks f ON Measure the CO in the vent after 5 minutes of main burner operation The CO should not exceed threshold in Table D 6 (2) Boilers a OFF and ON Inspect for evidence of water leaks around boiler and connected piping b ON Verify that the water pumps are in operating condition Test low water cutoffs, automatic feed controls, pressure and temperature limit controls, and relief valves in accordance with the manufacturer's recommendations to determine that they are in operating condition c ON Measure the CO in the vent after 5 minutes of main burner operation The CO should not exceed threshold in Table D 6 (3) Water Heaters a OFF Verify that the pressure -temperature relief valve is in operating condition Water in the heater should be at operating temperature b OFF Verify that inspection covers, glass, and gaskets are intact and in place on a flammable vapor ignition resistant (F VIR) type water heater c ON Verify that the thermostat is set in accordance with the manufacturer's operating instructions and measure the water temperature at the closest tub or sink to verify that it is no greater than 120°F d OFF Where required by the local building code in earthquake prone locations, inspect that the water heater is secured to the wall studs in two locations (high and low) using appropriate metal strapping and bolts e ON Measure the CO in the vent after 5 minutes of main burner operation The CO should not exceed threshold in Table D 6 168 2018 INTERNATIONAL FUEL GAS CODE" C1pyngbtOo2.017 ICC ALL RIGHTS RESERVED A—LDd by H®Ih¢ Van DmA(Rvdme Oo,dA od om),(Qty of FRmdNmod)O[do,N=b,,*1008170S601 JM 15. ZMO 0651 AM (PET) mt to Fk ff., I (firill PETER 1, Ag,'^Rt, ICC No otths TAodomoo. m AtOy odomo- by any Ot Party o[ AAmboemd,Oo[vsd Mgle —ooly o,and Nyodwg GMIRISAd ANY VNAVTHO OLDER REPROD VCIION OR D ISIRIEVTION IS VIOLATION OP THE FED REAL COPYRIGHT 11 AND THE LICENSE AGREEME NT. AND REJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER APPENDIX D (4) Cooking Appliances a OFF Inspect oven cavity and range -top exhaust vent for blockage with aluminum foil or other materials b OFF Inspect cook top to verify that it is free from a build-up of grease c ON Measure the CO above each burner and at the oven exhaust vents after 5 minutes of burner operation The CO should not exceed threshold in Table D 6 (5) Vented Room Heaters a OFF For built-in room heaters and wall furnaces, inspect that the burner compartment is free of lint and debris b OFF Inspect that furnishings and combustible building components are not blocking the heater c ON Measure the CO in the vent after 5 minutes of main burner operation The CO should not exceed threshold in Table D 6 (6) Vent -free (Unvented) Heaters a OFF Verify that the heater input is not more than 40,000 Btu input, but not more than 10,000 Btu where installed in a bedroom, and 6,000 Btu where installed in a bathroom b OFF Inspect the ceramic logs provided with gas log type vent free heaters that they are properly located and aligned c OFF Inspect the heater that it is free of excess lint build-up and debris d OFF Verify that the oxygen depletion safety shutoff system has not been altered or bypassed e ON Verify that the main burner shuts down within 3 minutes by extinguishing the pilot light The test is meant to simulate the operation of the oxygen depletion system (ODS) f ON Measure the CO after 5 minutes of main burner operation The CO should not exceed threshold in Table D 6 (7) Gas Log Sets and Gas Fireplaces a OFF For gas logs installed in wood burning fireplaces equipped with a damper, verify that the fireplace damper is in a fixed open position b ON Measure the CO in the firebox (log sets installed in wood burning fireplaces or in the vent (gas fireplace) after 5 minutes of main burner operation The CO should not exceed threshold in Table D 6 (8) Gas Clothes Dryer OFF Where installed in a closet, verify that a source of make-up au is provided and inspect that any make-up au openings, louvers, and ducts are free of blockage b OFF Inspect for excess amounts of lint around the dryer and on dryer components Inspect that there is a lint trap properly installed and it does not have holes or tears Verify that it is in a clean condition c OFF Inspect visible portions of the exhaust duct and connections for loose fittings and connections, blockage, and signs of corrosion Verify that the duct termination is not blocked and that it terminates in an outdoor location Verify that only approved metal vent ducting material is installed (plastic and vinyl materials are not approved for gas dryers) d ON Verify mechanical components including drum and blower are operating properly e ON Operate the clothes dryer and verify that exhaust system is intact and exhaust is exiting the term matron ON Measure the CO at the exhaust duct or tenmmation after 5 minutes of main burner operation The CO should not exceed threshold in Table D 6 TABLE D.6 CO THRESHOLDS Boilers (all categories) 400 ppm For free Central Furnace (all categories) 400 ppml For frees' Floor Furnace 400 ppm For free Gravity Fumace 400 ppm For free Wall Fumace 200 ppm For free Wall Fumace (Direct Vent) 400 ppm For free Vented Room Heater 200 ppm For free Vent -Free Room Heater 200 ppm For free Water Heater 200 ppm For free Oven/Broiler 225 ppm as measured Top Burner 25 ppm as measured (per burner) Clothes Dryer 400 ppm For free Refrigerator 25 ppm as measured Gas Log (gas fireplace) 25 ppm as measured in vent Gas Log (installed in wood bummg fireplace) 400 ppm For free infirebox Parts per million A¢ free emission levels are based on a mathematical equation (involving carbon monoxide and oxygen or carbon dioxide readings) to convert an actual diluted flue gas carbon monoxide testing sample to an undiluted a¢ free flue gas carbon monoxide level utilized in the appliance certification standards For natural gas or propane, using as -measured CO ppm and OL percentage COAFppm 20.9 - 269-0 x COrim where COAFI,I,m = Carbon monoxide, air -free ppm CCP,m = As -measured combustion gas carbon monoxide ppm OL = Percentage of oxygen in combustion gas, as a percentage 2018 INTERNATIONAL FUEL GAS CODE® 169 I " ' CITFIght Oo 2017 ICC ALL RIGHTS RESERVED Awned by H®Ih¢ Van DmA(hv dme Oo,dA od om),(Qty of FRmdNmod)O[do, Nomb,,*10081vwS6 01JM 15, ZMO oc 51 AM(PET)puArvant to ( LEA Affiee^® Rt, ICC No fwN¢[TAodomo,,m AtO,«odomo- by any Ot Party o, AAmboemdmho[vsd Mglo—oily mpyncg and Nyodwg L,oIRb¢Ad ANY VNAVTHO RIVER REICLA VCTION OR DISIRIBITTO N IS A VIOLATION OF THE FEDERAL COPYRIGHT ACT AND THE LICENSE AGREEMENT. AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER APPENDIX D ' An alternate method of calculating the CO air free when access to an oxygen meter is not available UCOz co - co x CO 2 where UCOS = Ultimate concentration of carbon dioxide for the fuel being burned in percent for natural gas (12 2 percent) and propane (14 0 percent) COS = Measured concentration of carbon dioxide in combustion products in percent CO = Measured concentration of carbon monoxide in combustion products in percent 170 2018 INTERNATIONAL FUEL GAS CODE" rk i TTFrT1T (Aryaght Oo 2.017 ICC ALL RIGHTS RESERVED A—LDd by H®Ih¢ Van Dme(Rv O,,e Oo,d—od om),(Qty of R—d—od)O,d¢Nomb¢*1008170S601 JM 15. ZMO oc 51 AM (GET) mt to I ( qR I,—Ag,—^ '^M, ICC No o tths TAodomo,, oALt,, ,Aodomo,, by any Ot Party o[ Axmboemdmho[vsd Mglo—oldy-,and ,yodwg L-IRISed ANY UNAUTHO OLDER RE P RODUCI ION OR D ISIRIEUTION IS VIOLATION OP THE FEDERAL COPYRIGHT 11 AND THE LICENSE A G RE EM ENT. AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER n ACCESS, APPLIANCES INDEX General 306 Shutoff valves 409 1 3, 409 3 1, 409 5 Wall furnaces, vented 6086 AIR HEATERS, DIRECT -FIRED 611,612 Industrial 611,612 Venting 501 8 AIR, COMBUSTION Defined Requirements AIR-CONDITIONING EQUIPMENT Clearances ALTERNATE MATERIALS AND METHODS APPLIANCE Broilers for indoor use Connections to building piping Cooking Decorative Decorative vented Domestic cooking Electrical General Installation Listing Prohibited locations Protection from vehicle impact ARC -RESISTANT CSST 0 BENDS, PIPE BOILERS Existing installations Listed Prohibited locations Unlisted BONDING BUSHINGS C CENTRAL FURNACE Clearances Defined Drain pans 202 304 627 3083 1052 6235 411 623 602 202, 3033, Table 503 4, 604 6233 309 Chapter 6 Chapter 6 301 3 303 3, 623 2 3034 3103 405 Appendix D 631 3033 632 310 403 10 5 3084 202 3075 Existing installation Appendix D CERTIFICATES 1047 CERTIFICATION 401 10 CHIMNEY Chapter 5 Alternate methods of sizing 50355 Clearance reduction 308 Defined 202 Existing 501 15, 503 5 6 1 Masonry 501 3 CLEARANCE REDUCTION 308 CLEARANCES Air-conditioning appliances 6274 Boilers 3084 Chimney 501 154 Clearance reduction 308 Vent connectors 503 105 CLOTHES DRYER Defined 202 Exhaust 614 General 613 CODE OFFICIAL Defined 202 Duties and powers 104 COMBUSTION AIR Combination indoor and outdoor 3047 Defined 202 Ducts 30411 Free area of openings 304 5 3 1, 304 5 3 2, 304 6 1, 304 6 2, 304 7, 304 10 Fumes and gases 30412 Indoor 3045 Makeup air 3044 Mechanical supply 3049 Openings connecting spaces 30453 Outdoor 3046 COMPRESSED NATURAL GAS 413 CONCEALED PIPING 4045 CONDENSATE DISPOSAL 307 CONTROLS Boilers 631 2 Gas pressure regulators 410, 6284 CONVERSION BURNERS 619 COOKING APPLIANCES 623 CORROSION PROTECTION 40411 CREMATORIES 606 CUTTING, NOTCHING AND BORED HOLES 3023 2018 INTERNAT10NAL FUEL GAS CODE" 171 I I I I (ATFIgRtOo 2017 ICC ALL RIGHTS RESERVED Awned by H®Ih¢ Van Dme(Rvdme pooch od om),(Dty of FRmdNmod)O[do,N=b,,xl 00e170SS6 01JM 15. ZMO oc 51 AM (PET) Mt,b,mt to ( Lie Ag,, ^®'At, ICC No f�Lth,[TAodomoo.m Huth, �goodomo,o by any Ot Party o, Axmboemd,Oo[vsd Mgle ass¢ody oTyncg and Nyodwg T,oIRbAd ANY VNAVTHO RIVER REPROD VCTION OR DISIRIBITTON IS VIOLATION OF THE FEDERAL COPYRIGHT ACT AND THE LICENSE AGREEMENT. AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER INDEX 0 DAMPERS, VENT DECORATIVE APPLIANCES DECORATIVE SHROUDS DEFINITIONS DIRECT -VENT APPLIANCES Defined Installation DIVERSITY FACTOR DRAFT HOOD DUCTFURNACE E ELECTRICAL BONDING ELECTRICAL CONNECTIONS EXCESS FLOW VALVES EXHAUST INTERLOCK EXHAUST SYSTEMS F FEES FLASHBACK ARRESTOR FLOOD HAZARD FLOOR FURNACES FURNACES Central heating, clearance Duct Floor Prohibited location Vented wall Warm -air r 503 14, 503 15, 504 2 1, 504 3 1 303 3 1, 602, 604 503 5 4, 503 6 5 1 Chapter 2 202 3041, 50323 402 2, Appendix A 202, 503 12 202,610 310 3092 4104 5051 1 50321, 503 3 4, 505 1 1 1065, 1066 4105 301 11 609 308 3, 308 4 610 609 3033 608 618 GARAGE, INSTALLATION 305 3, 305 4, 305 5, 305 9, 305 10 GASEOUS HYDROGEN SYSTEMS 635, Chapter 7 General requirements 703 Piping, use and handling 704 Testing 705 GROUNDING, ELECTRODE 3091 H HISTORIC BUILDINGS HOT PLATES AND LAUNDRY STOVES 1026 501 8, 6231 ILLUMINATING APPLIANCES 628 INCINERATORS 503 2 5, 606, 607 INFRARED RADIANT HEATERS 411 3,630 INSPECTIONS 1044, 107 INSTALLATION, APPLIANCES Garage 305 3, 305 3 1, 305 3 2, 305 4, 305 5, 305 9, 305 10 General 305 Listed and unlisted appliances 301 3, 3051 Specific appliances Chapter 6 K KILNS 629 L LIQUEFIED PETROLEUM GAS Defined 202 Motor vehicle fuel -dispensing stations 412 Piping material 403 6 2, 403 11 Size of pipe or tubing Appendix A Storage 401 2 Systems 40271 Thread compounds 40393 LISTED AND LABELED APPLIANCES 301 3 LOG LIGHTERS 603 1T1 MANUFACTURED HOME CONNECTIONS 411 MATERIALS, DEFECTIVE Repair 301 9 Workmanship and defects 4037 METERS Identification 401 7 Interconnections 401 6 Multiple installations 401 7 MINIMUM SAFE PERFORMANCE, VENT SYSTEMS 503 3, 503 3 1, 503 3 2 N NONCORRUGATED STAINLESS STEEL TUBING 4025 O OUTLET CLOSURES 40415 Outlet location 40416 OVERPRESSURE PROTECTION DEVICES 416 172 2018 INTERNATIONAL FUEL GAS CODE" I I CATFIgRt Oo 2017 ICC ALL RIGHTS RESERVED A-LDd by H®Ih¢ Van Dme(Rv dme pooch od om),(Dty of FRmdNmod) O[do, Numb,, xl ooe170SS6 o1JM 15, m0 oc 5n AM (GET) Mt,mmt to S I ( RR Lie Ag,e^ At, I'C No Lth, �TAodomoo.m AtO, �goodomo- by any Ot Party A[ AxmboemdmRA[vsd Mgle- ody mpyncg and Nyodwg TARISAd ANY VNAVTHO RIVER REPROD VCTION OR DISIRIBITTON ISA VIOLATION OP THE FEDERAL COPYRIGHT ACT AND THE LICENSE AGREEMENT. AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER INDEX OXYGEN DEPLETION SAFETY SYSTEM ROOM HEATER Defined 202 Defined 202 Unvented room heaters 303 3(3), Location 3033 303 3(4), 621 6 Unvented 621 Vented 622 P S PIPE SIZING 402 SAFETY SHUTOFF DEVICES PIPING Flame safeguard device 6022 Bends 405 Unvented room heaters 621 6 Bonding 310 SAUNA HEATERS 615 Changes in direction 405 SCOPE 101 2 Concealed locations 4045 SCOPE AND ADMINISTRATION Chapter 1 Identification 401 5 Alternate materials and methods 1052 Inspection 406 Appeals 109 Installation 404 Certificates 1047 Materials 403 Conflicts 1021 Maximum pressure 4027 Connection of utilities 1076 Plastic 403 6, 403 6 3, Construction documents 10631 403 11, 404 17 Duties and powers of code official 104 Prohibited penetrations Fees 1065, 1066 and locations 404 3, 404 6 Inspections and testing 104 3, 106 4, 107 Purging 4067 Liability 1034 Sediment traps 4084 Modifications 1051 Sizing 402 Permits 106 Support 407, 415 Referenced codes and standards 1028 Testing 406 Requirements not covered by code 1029 Tracer wire 404173 Severability 1015 POLYAMIDE PIPE, TUBE AND FITTINGS 4036 Scope 101 2 POOL HEATERS 617 Temporary equipment 110 Title 101 1 POWERS AND DUTIES OF THE CODE OFFICIAL 104 Violations and penalties 108 PRESSURE DROP 4026 SEDIMENT TRAP 4084 PROHIBITED INSTALLATIONS SEISMIC RESISTANCE 301 12 Elevator shafts 301 15 SERVICE SPACE 306 SHUTOFF VALVES 409 Floor furnaces 6092 SPA HEATERS 617 Fuel -burning appliances 3033 STAINLESS STEEL TUBING 403 5 2, 403 10 3 Piping in partitions 4044 STANDARDS Chapter 8 Plastic piping 40417 STRUCTURAL SAFETY 302 Unvented room heater 621 2,621 4 SUPPORTS, PIPING 407,415 PURGING 4067 T R TEMPORARY EQUIPMENT 110 RADIANT HEATERS 630 TESTING 107 RANGES, DOMESTIC 6233 THIMBLE, VENT 503 7 7, 503 10 10 REFRIGERATORS 501 8,625 THREADS REGULATORS, PRESSURE 410,6284 Damaged 40391 RISERS, ANODELESS 40361 Specifications 4039 ROOFTOP INSTALLATIONS 3065 TOILETS, GAS -FIRED 626 TUBING JOINTS 403 10 2 2018 INTERNAT10NAL FUEL GAS CODE" 173 I ( I I I (ATFIgRt Oo 2017 ICC ALL RIGHTS RESERVED AwLDd by H®Ih¢ Van Dme(Rv dme pooch od om),(Dty of FRmdNmod) O[do, N=b,, xl 00e170SS6 01JM 15, m0 oc 51 AM (PET) Mt,b,mt to Lie Ag,, ^®'^M, ICC No f�Lth,[TAodomoo.m Huth, �goodomo,o by any Ot Party o, Axmboemd,Oo[vsd Mgle ass¢ody oTyncg and Nyodwg T,oIRbAd ANY VNAVTHO RIVER REICLA VCTION OR DISIRIBITTO N IS A VIOLATION OF THE FEDERAL COPYRIGHT ACT AND THE LICENSE AGREEMENT. AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER INDEX U UNDERGROUND PENETRATIONS 4046 UNIT HEATERS 620 UNLISTED BOILERS 632 UNSAFE CHIMNEYS 503563 UNVENTED ROOM HEATERS 621 11 VALIDITY 10652 VALVES, MULTIPLE -HOUSE LINES 4093 VALVES,SHUTOFF Appliances 4095 VENTED DECORATIVE APPLIANCES 604 VENTED ROOM HEATERS 622 VENTED WALL FURNACES 608 VENTILATING HOODS 503 2 1, 503 3 4, 505 1 1 VENTS Appliances not requiring vents 501 8 Caps 50367 Direct vent 50323 Exhaust hoods 5051 1, 50334 Gas vent termination 50365 General Chapter 5 Integral 505 Listed and labeled 5021 Mechanical vent 505 Plastic pipe 50341 Wall penetrations 50316 VENT, SIZING Category I appliances 502, 503, 504 Multiple appliance 5043 M ultistory 504 3 13, 504 3 14, 504 3 15, 504 3 16 Single appliance 5042 VIOLATIONS AND PENALTIES 108 n WALL FURNACES, VENTED 608 WARM AIR FURNACES 618 WATER HEATERS 624 WIND RESISTANCE 301 10 174 2018 INTERNATIONAL FUEL GAS CODE" I I CopyaghtOo 2017 ICC ALL RIGHTS RESERVED Awned by H®Ih¢ Van Dme(Rvdme pooch od om),(Dby of FRmdNmod)O[do,N=b,,*100817— 01 jM 15, fMO oc 51 AM(GET) T,,mmt to S I ( 01,i ,Agffi,vo ,,AOICC Nof th,, ,od,S,o,,,ou ,,, od,S,00zbyany ,dputyo, Axmboemzotho[vs3 ANYVNAVTHORIVED RBPROD VCIION ORDISI—IION LEA VIOLATION OF THE FEDERAL COPYRIGHT ACT AND THE LICENSEAGREEMENT.AND SUBJECT TO CIVIL AND CRIMINAL PENALTIESTHERBUNDER :]A01Aak16qt1:I_1AT►NOkiAto]W1111i No matter where you are in your building career, put the benefits of ICC Membership to work for you! 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'Applies to "Complete Plan Review Services" Contact ICC Plan Review staff for details 1714W6 Co I@M11-- MISTS— x v ure �dFmd-nm o(CI,,4( N ,SA Nw Ih IM, J.11 ianISSIIp mnw .a A-_. wA _I .w _ mrsly—c-I, m — mm4mgemly Peaeodorn— IS— IS mouvox oe'=e aoexuaxixcixemaorsexas¢amnrt am STJSj 0wd ArTC-P Valuable Guides to Changes in the 2018 I -Codes° d'", SIGNIFICANT CHANGES TO THE 2018 INTERNATIONAL CODES" Practical resources that offer a comprehensive analysis of the critical changes made between the 2015 and 2018 editions of the codes Authored by ICC code experts, these useful tools are "must -have" guides to the many important changes in the 2018 International Codes Key changes are identified then followed by in-depth, expert discussion of how the change affects real world application A full -color photo, table or illustration is included for each change to further clarify application SIGNIFICANT CHANGES TO THE IBC, 2018 EDITION 47024S18 SIGNIFICANT CHANGES TO THE IRC, 2018 EDITION 47101S18 SIGNIFICANT CHANGES TO THE IFC, 2018 EDITION 47404S18 SIGNIFICANT CHANGES TO THE IPCAMC/IFGC, 2018 EDITION 47202S18 ORDER YOUR HELPFUL GUIDES TODAY! 1-800-786-4452 1 www.iccsafe.org/books �A __. ,� .� �� mRa �d I-�o�mo�oso�e ISANoa�oNOF=E I-- ��A—Iy �;��waA—C— �—