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Home My WebLink About2012 International Fuel and Gas Code 4th Printing October 2013zo�z iommaeoo� wd cw code s P,odoce. oaA icc a,odomsore �Ev �orv,oa�ce. c�eea��me�oae m American Gas INTERNATIONAL Association CODE COUNCIL° A 'auGb American Gas Association INTERNATIONAL FUEL GAS CODE A Member of the International Code Family NIFGC 0 Become a Building Safety Professional Member and Learn More about the Code Council GO TO W W W.ICCSAFE.ORG for All You r Technical and Professional Needs Including: > Codes, Standards and Guidelines > Membership Benefits ation >Comm Communications onIndust > Communications on Industry News Cop 1@m11 Asp by aoO—w—1��M.=1— PM aw p.��m�sAM.�,..w��« arero ee.�omnm Aa, m��mma .re�M oa��na000moNosou-re�eunoNMAV�o—OEnff MnmA,.we�.re�O�rrAOrwO—C— C— 2012 International Fuel Gas Code' First Printrng April 2011 Second Printing February 2012 Third Pnnhng March 2013 Fourth Printing October 2013 ISBN: 978-1-60983-049-6 (soft-cover edition) ISBN: 978-1-60983-048-9 (loose-leaf edition) COPYRIGHT© 2011 by INTERNATIONAL CODE COUNCIL, INC ALL RIGHTS RESERVED This 2012Internahonal Fuel Gas Code® is a copyrighted work owned by the International Code Council, Inc Without advance written permission from the copyright owner, no part of this book may be reproduced, distrib- uted, or transmitted in any form or by any means, including, without limitation, electronic, optical or mechanical means (by way of example, and not linitation, photocopying, or recording by or in an information storage retrieval system) For information on permission to copy material exceeding fair use, please contact Publications, 4051 West Flossmoor Road, Country Club Hills, IL 60478 Phone 1-888-ICC-SAFE (422-7233) Trademarks "International Code Council," the "International Code Council' logo and the "International Fuel Gas Code" are trademarks of the International Code Council, Inc Material designated IFGS by AMERICAN GAS ASSOCIATION 400 N Capitol Street, N W • Waslungton, DC 20001 (202) 824-7000 Copyright © American Gas Association- 2011 All rights reserved 31540 T015033 PRINTED IN THE U S A CopyngbtOO ON I ICC ALL RIGHTS RESERVED Awsed by ().(-)O,d,,Nombsx 100760189 oc Sep so. 2019 Oi R9 PM(PDT) p—Potto I»eAge mt,oUICC No FYUP ep,od Utoa oAYUP, ,Fod,Yo¢ebymytl,dputy,o,ANb,to,au o,sd Single—mlym,ymg Pod-Pyo,k,Fokbad ANY VNAVTHORIVED REPRODUCTION REDISTRIBUTION IS A VIOLATION OF THE FEDERAL COPYRIGHT ACT AND THE LICENSE AGREEMENT, AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER Introduction Development Format PREFACE Internationally, code officials recognize the need for a modern, up-to-date fuel gas code addressing the design and installation of fuel gas systems and gas -fired appliances through requirements emphasizing performance. The International Fuel Gas Code', in this 2012 edition, is designed to meet these needs through model code regulations that safeguard the public health and safety in all communities, large and small. This comprehensive fuel gas code establishes minimum regulations 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 appli- ance designs. This 2012 edition is fully compatible with all of the International Codes' (I -Codes°) published by the International Code Council (ICC)', including the International Building Code", Inter- national Energy Conservation Code°, International Existing Building Code" International Fire Code" International Green Construction Code TM (to be available March 2012), International Mechanical Code', ICC Performance Code°, International Plumbing Code', International Private Sewage Dis- posal Code°, International Property Maintenance Code', International Residential Code" Interna- tional Swimming Pool and Spa Code TM (to be available March 2012), International Wildland-Urban Interface Code" and International Zoning Code The International Fuel Gas Code provisions provide many benefits, among which is the model code development process that offers an international forum for fuel gas technology professionals to discuss performance and prescriptive code requirements. This forum provides an excellent arena to debate proposed revisions. This model code also encourages international consistency in the application of provisions. The first edition of the International Fuel Gas Code (1997) was the culmination of an effort initiated in 1996 by a development committee appointed by ICC and consisting of representatives of the three statutory members of the International Code Council at that time, including: Building Officials and Code Administrators International, Inc. (BOCA), International Conference of Building Officials (ICBO) and Southern Building Code Congress International (SBCCI) and the gas industry. The intent was to draft a comprehensive set of regulations for fuel gas systems and gas -fired appliances consis- tent with and inclusive of the scope of the existing mechanical, plumbing and gas codes. Technical content of the latest model codes promulgated by BOCA, ICBO, SBCCI and ICC and the National Fuel Gas Code (ANSI Z223.1) was utilized as the basis for the development. This 2012 edition presents the code as originally issued, with changes reflected in subsequent editions through 2009, and with code changes approved through the ICC Code Development Process through 2010 and standard revisions correlated with ANSI Z223.1-2012. A new edition such as this is promulgated every three yea rs. 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. 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. 2012 INTERNATIONAL FUEL GAS CODE" III I " ' Copy,ght @ zoI I ICC ALL RIGHTS RESERVED Awsed by ().(-)O,d,,Nombsx 100760189 oc Sep so.2.o19 oa. os PM(PDT) p—Potty l»eAge mt,oUICC No FYUP ep,oddtoa oAYUP, (,,Fod,Yo¢ebymytl,dputy,o,ANb,to,au o,sd Single —oPIA opymg PodortuodmgFokbad ANY VNAVTHORIVED REPRODUCTION REDISTRIBUTION IS A VIOLATION OF THE FEDERAL COPYRIGHT ACT AND THE LICENSE AGREEMENT, AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER Adoption Maintenance The International Fuel Gas Code is available for adoption and use by jurisdictions internationally. Its use within a governmental jurisdiction is intended to be accomplished through adoption by refer- ence in accordance with proceedings establishing the jurisdiction's laws. At the time of adoption, jurisdictions should insert the appropriate information in provisions requiring specific local informa- tion, such as the name of the adopting jurisdiction. These locations are shown in bracketed words in small capital letters in the code and in the sample ordinance. The sample adoption ordinance on page ix addresses several key elements of a code adoption ordinance, including the information required for insertion into the code text. The International Fuel Gas Code is kept up to date through the review of proposed changes submit- ted by code enforcing officials, industry representatives, design professionals and other interested parties. Proposed changes are carefully considered through an open code development process in which all interested and affected parties may participate. The code development process of the International Fuel Gas Code is slightly different than the process for the other International Codes. Proposed changes to text designated "IFGC" are subject to the ICC Code Development Process. For more information regarding the code development process, contact the Codes and Standards Development Department of the International Code Council. Proposed changes to text designated as "IFGS" are subject to the standards development pro- cess which maintains the National Fuel Gas Code (ANSI Z223.1). For more information regarding the standards development process, contact the American Gas Association (AGA) at 400 N. Capitol Street, N.W., Washington, DC 20001. While the development procedure of the International Fuel Gas Code ensures the highest degree of care, the ICC, its members, the AGA and those participating in the development of this code do not accept any liability resulting from compliance or noncompliance with the provisions because the ICC, its founding members and the AGA do not have the power or authority to police or enforce compliance with the contents of this code. Only the governmental body that enacts the code into law has such authority. 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 Code Devel- opment 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. Proposed changes to a code section that has a number beginning with a letter in brackets are con- sidered by a different code development committee. For example, proposed changes to code sec- tions that have [B] in front of them (e.g., [B] 302.1) are considered by the appropriate International Building Code Development Committee (IBC -Structural) at the code development hearings. The content of sections in this code that begin with a letter designation is maintained by another code development committee in accordance with the following: [A] = Administrative Code Development Committee; [B] = International Building Code Development Committee (IBC —Fire Safety, General, Means of Egress or Structural); [M] = International Mechanical Code Development Committee; and [F] = International Fire Code Development Committee. iv 2012 INTERNATIONAL FUEL GAS CODE° " ' Copy,ght Oo ON I ICC ALL RIGHTS RESERVED A-P—d by ().(-)O,d,,Nombsx 100760189 oc Sep SO,2019 oa. OsPM(PDT) p—Potty l»eAge mt,oUICC No FYUP ep,odw.noa oAYUP, S I ( ,Fod,Yo,,bymytl,dputy,o,ANb�to,au o,sd Single —oPIA PTymg anodmgp� dortuokbad ANY VNAVTHORIVED REPRODUCTION REDISTRIBUTION IS A VIOLATION OF THE FEDERAL COPYRIGHT 11 AND THE LICENSE AGREEMENT, AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER Note that, for the development of the 2015 edition of the I -Codes, there will be two groups of code development committees and they will meet in separate years. The groupings are as follows: Group A Codes (Heard in 2012, Code Change Proposals Deadline: January 3, 2012) Group B Codes (Heard in 2013, Code Change Proposals Deadline: January 3, 2013) International Building Code Administrative Provisions (Chapter 1 all codes except IRC and ICCPC, administrative updates to currently ref- erenced standards, and designated definitions) International Fuel Gas Code International Energy Conservation Code International Mechanical Code International Existing Building Code International Plumbing Code International Fire Code International Private Sewage Disposal Code International Green Construction Code ICC Performance Code International Property Maintenance Code International Residential Code International Swimming Pool and Spa Code International Wildland-Urban Interface Code International Zoning Code 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 will meet in different years, it is possible that some proposals for this code will be heard by a committee in a differentyear than the year in which the primary committee for this code meets. For example, every section of Chapter 1 of this code is designated as the responsibility of the Administrative Code Development Committee, and that committee is part of the Group B code hearings. This committee will conduct its code development hearing in 2013 to consider all code change proposals for Chapter 1 of this code and proposals for Chapter 1 of all I -Codes. Therefore, any proposals received for Chapter 1 of this code will be deferred for consideration in 2013 by the Administrative Code Development Committee. Another example is Section 707 of this code which is designated as the responsibility of the Inter- national Fire Code Development Committee. This committee will conduct its code development hearing in 2013 to consider code change proposals in its purview, which includes any proposals to Section 707. In some cases, another committee in Group A will be responsible for a section of this code. For example, Section 306.1 has a [M] in front of the numbered section, indicating that this section of the code is the responsibility of the International Mechanical Code Development Committee. The International Mechanical Code is in Group A; therefore, any code change proposals to this section will be due before the Group A deadline of January 3, 2012, and these code change proposals will be assigned to the International Mechanical Code Development Committee for consideration. It is very important that anyone submitting code change proposals understand which code devel- opment 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 web site at www.iccsafe.org/scoping. 2012 INTERNATIONAL FUEL GAS CODE" v I " ' Copy,ght @ zoI I ICC ALL RIGHTS RESERVED Awsed by ().(-)O,d,,Nomb,x1oovco189 oc Sep so.2.o19 oa. ws PM(PDT) p—Potty l»eAge mt,oUICC No FYUP ep,oddtoa oAYUP, (,,Fod,Yo,,bymytl,dputy,o,ANb,to,au o,sd Single —oPIA opymg PodortuodmgFokbad ANY VNAVTHORIVED REPRODUCTION REDISTRIBUTION IS A VIOLATION OF THE FEDERAL COPYRIGHT ACT AND THE LICENSE AGREEMENT, AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER Marginal Markings Italicized Terms Solid vertical lines in the margins within the body of the code indicate a technical change from the requirements of the 2009 edition. Deletion indicators in the form of an arrow ( y ) 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 in a table has been deleted. Selected terms set forth in Chapter 2, Definitions, are italicized where they appear in code text. Such terms are not italicized where the definition set forth in Chapter 2 does not impart the intended meaning in the use of the term. The terms selected have definitions which the user should read carefully to facilitate better understanding of the code. 2012 INTERNATIONAL FUEL GAS CODE" Copy,gbtOO?.ot I ICC ALL RIGHTS RESERVED Awsedby().(-)O,d,,Nombsx1oovco189 oc SIP so.2o19 Oi o9 PM(PDT)p—Potb IL eAg—mt,oUICC No FYUP ep,oddto—oAYUP, ,FodmYo¢ebymytl,dputy,o,ANb,to,au o,sd Smglo oPIA opymg PodortuodmgFokbad ANY VNAVTHORIVED REPRODUCTION REDISTRIBUTION IS A VIOLATION OF THE FEDERAL COPYRIGHT ACT AND THE LICENSE AGREEMENT, AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER Effective Use of the International Fuel Gas Code The IFGC is a model code that regulates the design and installation of fuel gas distribution piping and systems, appliances, appliance venting systems, combustion air provisions, gaseous hydrogen systems and motor vehicle gaseous -fuel -dispensing stations. The definition of fuel gas includes nat- ural, 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 by this 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 402.6). The general Section 105.2 and the specific Sections 304.8, 402.3, 503.5.5 and 503.6.9 allow com- bustion air provisions, pipe sizing and chimney and vent sizing to be performed by approved engi- neering methods as alternatives to the prescriptive methods in the code. Arrangement and Format of the 2009 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 jurisdiction having authority 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 and clearances to combustibles, among others. This chapter also covers combustion air provisions for gas -fired appliances. 2012 INTERNATIONAL FUEL GAS CODE" vii I i l i Copy,ght @ zoI I ICC ALL RIGHTS RESERVED Awsed by ().(-)O,d,,Nombsx 100760189 oc Sep so.2.o19 oa. os PM (PDT) p—Potty l»eAge mt,oUICC No FYUP ep,oddtoa oAYUP, (,,Fod,Yo¢ebymytl,dputy,o,ANb,to,au o,sd Single —oPIA opymg PodortuodmgFokbad ANY VNAVTHORIVED REPRODUCTION REDISTRIBUTION IS A VIOLATION OF THE FEDERAL COPYRIGHT ACT AND THE LICENSE AGREEMENT, AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER 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 motorvehicles. 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. AppendixASizing 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 for testing and inspecting an appliance installation to determine if the installation is operat- ing safely and if the appliance is in a safe condition. vill 2012 INTERNATIONAL FUEL GAS CODER Rk S i l i Copy,ght Oo O N I ICC ALL RIGHTS RESERVED Awsed by ().(-)O,d,,Nombsx 100760189 oc Sep SO,2019 oa. ws PM(PDT) p,YmPotta l»eAge mt,oUICC No FYUP ep,od U:oa oAYUP, I( ,FodmYo,,bymytl,dputy,o,ANb�to,au o,sd Smglo oPIA PTymg andortuodmgFokbad ANY VNAVTHORIVED REPRODUCTION REDISTRIBUTION IS A VIOLATION OF THE FEDERAL COPYRIGHT 11 AND THE LICENSE AGREEMENT, AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER 14*el 6yW_1IEel ►lI The International Codes are designed and promulgated to be adopted by reference by legislative action. Jurisdictions wishing to adopt the 2012 International Fuel Gas Code as an enforceable regulation governing fuel gas systems and gas -fired appliances should ensure that certain factual information is included in the adopting legislation at the time adoption is being considered by the appropriate governmental body. The following sample adoption legislation addresses several key elements, including the information required for insertion into the code text. SAMPLE LEGISLATION FOR ADOPTION OF THE INTERNATIONAL FUEL GAS CODE ORDINANCE NO. A[N] [ORDINANCE/STATUTE/REGULATION] of the [JURISDICTION] adopting the 2012 edition of the International Fuel Gas Code, regulating and governing fuel gas systems and gas -fired appliances in the [JURISDICTION]; providing for the issuance of permits and collection of fees therefor; repealing [ORDINANCE/STATUTE/REGULATION] No. of the [JURISDICTION] and all other ordinances or parts of laws in conflict therewith. The [GOVERNING BODY] of the [JURISDICTION] does ordain as follows: Section 1. That a certain document, three (3) copies of which are on file in the office of the [TITLE OF JURISDICTION'S KEEPER OF RECORDS] of [NAME OF JURISDICTION], being marked and designated as the International Fuel Gas Code, 2012 edition, including Appendix Chapters [FILL IN THE APPENDIX CHAPTERS BEING ADOPTED] (see International Fuel Gas Code Section 101.3, 2012 edition), as published by the International Code Council, be and is hereby adopted as the Fuel Gas Code of the [JURISDICTION], in the State of [STATE NAME] for regulating and governing fuel gas systems and gas -fired appliances as herein provided; providing for the issuance of permits and collection of fees therefor; and each and all of the regulations, provisions, penalties, conditions and terms of said Fuel Gas Code on file in the office of the [JURISDICTION] are hereby referred to, adopted, and made a part hereof, as if fully set out in this legislation, with the additions, insertions, deletions and changes, if any, pre- scribed in Section 2 of this ordinance. Section 2. The following sections are hereby revised: 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] Section 3. That [ORDINANCE/STATUTE/REGULATION] No. of [JURISDICTION] entitled [FILL IN HERE THE COMPLETE TITLE OF THE LEGISLATION OR LAWS IN EFFECT AT THE PRESENT TIME SO THAT THEY WILL BE REPEALED BY DEFINITE MEN- TION] and all other ordinances or parts of laws in conflict herewith are hereby repealed. Section 4. That if any section, subsection, sentence, clause or phrase of this legislation is, for any reason, held to be unconstitu- tional, such decision shall not affect the validity of the remaining portions of this ordinance. The [GOVERNING BODY] hereby declares that it would have passed this law, and each section, subsection, clause or phrase thereof, irrespective of the fact that any one or more sections, subsections, sentences, clauses and phrases be declared unconstitutional. Section 5. That nothing in this legislation or in the Fuel Gas Code hereby adopted shall be construed to affect any suit or pro- ceeding impending in any court, or any rights acquired, or liability incurred, or any cause or causes of action acquired or exist- ing, under any act or ordinance hereby repealed as cited in Section 3 of this law; nor shall any just or legal right or remedy of any character be lost, impaired or affected by this legislation. Section 6. That the [JURISDICTION'S KEEPER OF RECORDS] is hereby ordered and directed to cause this legislation to be pub- lished. (An additional provision may be required to direct the number of times the legislation is to be published and to specify that it is to be in a newspaper in general circulation. Posting may also be required.) Section 7. That this law and the rules, regulations, provisions, requirements, orders and matters established and adopted hereby shall take effect and be in full force and effect [TIME PERIOD] from and after the date of its final passage and adoption. 2012 INTERNATIONAL FUEL GAS CODE" ix C,gbtOO?.ot I ICC ALL RIGHTS RESERVED Awsedby().(-)O,d,,Nmmbsx1oovco189 oc SIP so.2.o19 oa.ws PM(PDT)p—Pot to IL eAg—mt,oUICC No FYUP ep,oddtoaoAYUP, ,Fod,Yo¢ebymytl,dputy,o,ANb,to,au o,sd Single —ooly, mpymg Pod-Pyodmg FoIRbad ANY VNAVTHORIVED REPRODUCTION REDISTRIBUTION IS A VIOLATION OF THE FEDERAL COPYRIGHT ACT AND THE LICENSE AGREEMENT, AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER 2012 INTERNATIONAL FUEL GAS CODE" C,gbt OO?.ot I ICC ALL RIGHTS RESERVED Awsed by (). (-) O,d¢ Nombs x 100760189 oc Sep V,2o19 Oi o9 PM (PDT)pwmmtto l»eAg—mt,oU ICC No FYUP,,eplod dtoo.00 AYUP, eFod,Yo¢ebymytl,dputy,o,ANb,to,au o,sd Single—mlympymg mdortuodmg F oARItAd ANY VNAVTHORIVED REPRODUCTION REDISTRIBUTION 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 1—SCOPE AND APPLICATION Section 101 General (IFGC) ............................1 102 Applicability (IFGC) ....................... 2 PART 2ADMINISTRATION AND ENFORCEMENT ................... 2 103 Department of Inspection (IFGC) ............. 2 104 Duties and Powers of the Code Official (IFGC) ..................... 3 105 Approval (IFGC) ..........................3 106 Permits (IFGC) ............................ 4 107 Inspections and Testing (IFGC) ............... 5 108 Violations (IFGC).......................... 7 109 Means of Appeal (IFGC) .................... 7 110 Temporary Equipment, Systems and Uses(IFGC)............................8 NII\yYYltis�l]YIYII�IYY[Y7�6 Section 201 General (IFGC) ............................9 202 General Definitions (IFGC) .................. 9 CHAPTER 3 GENERAL REGULATIONS ........ 17 Section 301 General (IFGC) ...........................17 302 Structural Safety (IFGC) ................... 18 303 Appliance Location (IFGC) ................. 18 304 Combustion, Ventilation and Dilution Air (IFGS) ..................... 19 305 Installation (IFGC) ........................ 22 306 Access and Service Space (IFGC) ............ 23 307 Condensate Disposal (IFGC) ................ 25 308 Clearance Reduction (IFGS) ................ 25 309 Electrical (IFGC) ......................... 26 310 Electrical Bonding (IFGS) .................. 28 CHAPTER 4 GAS PIPING INSTALLATIONS ..... 29 Section 401 General (IFGC) ...........................29 402 Pipe Sizing (IFGS) ........................ 29 403 Piping Materials (IFGS).................... 67 404 Piping System Installation (IFGC)............ 69 405 Piping Bends and Changes in Direction (IFGS) ....................... 71 406 Inspection, Testing and Purging (IFGS) ....... 71 407 Piping Support (IFGC)..................... 74 408 Drips and Sloped Piping (IFGC) ............. 74 409 Shutoff Valves (IFGC)..................... 74 410 Flow Controls (IFGC) ..................... 75 411 Appliance and Manufactured Home Connections (IFGC) ............... 76 412 Liquefied Petroleum Gas Motor Vehicle Fuel -dispensing Facilities (IFGC) .......... 77 413 Compressed Natural Gas Motor Vehicle Fuel -dispensing Facilities (IFGC) .......... 77 414 Supplemental and Standby Gas Supply (IFGC) ..................... 79 415 Piping Support Intervals (IFGS) ............. 79 416 Overpressure Protection Devices (IFGS)....... 79 CHAPTER 5 CHIMNEYS AND VENTS .......... 83 Section 501 General (IFGC) .......................... 83 502 Vents (IFGC) ............................ 84 503 Venting of Appliances (IFGS) ............... 85 504 Sizing of Category I Appliance Venting Systems (IFGS) ................. 94 505 Direct -vent, Integral Vent, Mechanical Vent and Ventilation/Exhaust Hood Venting (IFGC) ................... 98 506 Factory -built Chimneys (IFGC).............. 98 CHAPTER 6 SPECIFIC APPLIANCES.......... 119 Section 601 General (IFGC) ......................... 119 602 Decorative Appliances for Installation in Fireplaces (IFGC) ................... 119 603 Log Lighters (IFGC) ..................... 119 604 Vented Gas Fireplaces (Decorative Appliances) (IFGC) .......... 119 605 Vented Gas Fireplace Heaters (IFGC) ........ 119 606 Incinerators and Crematories (IFGC) ........ 119 607 Commercial -industrial Incinerators (IFGC).... 119 608 Vented Wall Furnaces (IFGC) .............. 119 2012 INTERNAT10NAL FUEL GAS CODE" A I II I C,gbtOO?.ot I ICC ALL RIGHTS RESERVED Awsedby().(-)O,d,,Nombsx1oovco189 oc SIP so.2.o19 oa.ws PM(PDT)p—Pot to IL eAg—mt,oUICC No FYUPep,oddtoaoAYUP, (,,FodmYo¢ebymytl,dputy,o,ANb,to,au o,sd SmgIP ooIympymg Pod.Nyodmg F oARbtAd ANY VNAVTHORIVED REPRODUCTION REDISTRIBUTION IS A VIOLATION OF THE FEDERAL COPYRIGHT ACT AND THE LICENSE AGREEMENT, AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER TABLE OF CONTENTS 609 Floor Furnaces (IFGC) .................... 120 610 Duct Furnaces (IFGC) .................... 120 611 Nonrecirculating Direct -fired Industrial Air Heaters (IFGC) ..................... 120 612 Recirculating Direct -fired Industrial Air Heaters (IFGC) ........................ 121 613 Clothes Dryers (IFGC) .................... 121 614 Clothes Dryer Exhaust (IFGC).............. 121 615 Sauna Heaters (IFGC) .................... 123 616 Engine and Gas Turbine -powered Equipment (IFGC) ..................... 123 617 Pool and Spa Heaters (IFGC) ............... 124 618 Forced -air Warm -air Furnaces (IFGC)........ 124 619 Conversion Burners (IFGC) ................ 125 620 Unit Heaters (IFGC) ...................... 125 621 Unvented Room Heaters (IFGC) ............ 125 622 Vented Room Heaters (IFGC) .............. 125 623 Cooking Appliances (IFGC)................ 125 624 Water Heaters (IFGC) .................... 126 625 Refrigerators (IFGC) ..................... 126 626 Gas -fired Toilets (IFGC) .................. 126 627 Air-conditioning Appliances (IFGC) ......... 126 628 Illuminating Appliances (IFGC)............. 127 629 Small Ceramic Kilns (IFGC) ............... 127 630 Infrared Radiant Heaters (IFGC) ............ 128 631 Boilers (IFGC) .......................... 128 632 Equipment Installed in Existing Unlisted Boilers (IFGC) ................. 128 633 Stationary Fuel -cell Power Systems (IFGC) ... 128 634 Chimney Damper Opening Area (IFGS) .......................... 128 635 Gaseous Hydrogen Systems (IFGC) ......... 128 636 Outdoor Decorative Appliances (IFGC) ...... 128 CHAPTER GASEOUS HYDROGEN SYSTEMS ....................... 129 Section 701 General (IFGC) ..........................129 702 General Definitions (IFGC) ................ 129 703 General Requirements (IFGC) .............. 129 704 Piping, Use and Handling (IFGC) ........... 130 705 Testing of Hydrogen Piping Systems (IFGC) .. 131 706 Location of Gaseous Hydrogen Systems (IFGC)............... 132 707 Operation and Maintenance of Gaseous Hydrogen Systems (IFGC)............... 133 708 Design of Liquefied Hydrogen Systems Associated with Hydrogen Vaporization Operations (IFGC) ..................... 133 [41:I1yY1114:0Naa0N11014101I.7 RAN 17\NIb�R� APPENDIX A SIZING AND CAPACITIES OF GAS PIPING (IFGS) .............. 139 APPENDIX B SIZING OF VENTING SYSTEMS SERVING APPLIANCES EQUIPPED WITH DRAFT HOODS, CATEGORY I APPLIANCES AND APPLIANCES LISTED FOR USE WITH TYPE B VENTS (IFGS) ................... 151 APPENDIX C EXIT TERMINALS OF MECHANICAL DRAFT AND DIRECT -VENT VENTING SYSTEMS (IFGS) ................ 161 APPENDIX D RECOMMENDED PROCEDURE FOR SAFETY INSPECTION OF AN EXISTING APPLIANCE INSTALLATION (IFGS) .......... 163 INDEX.......................................165 xii 2012 INTERNATIONAL FUEL GAS CODE" 1 1 1 Copy,ght Oo O N I ICC ALL RIGHTS RESERVED Awsed by ().(-)O,d,,Nombsx 100760189 oc Sep SO,2019 oa. OsPM(PDT) p—Potto l»eAge mt,oUICC No FYUP ep,odw.noa oAYUP, S I ( [,Fod Uto,,by POVO d party. o,±RYb�toc P,,Uoosd SmgIP oPIA Tymg Pod o NyodmgFoARbtAd ANY VNAVTHORIVED REPRODUCTION OR DISTRIBUTED N IS A VIOLATION OF THE riRirTPBDREAL COPYRIGHT 11 AND THE LICENSE AGREEMENT, AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER CHAPTER1 SCOPE AND ADMINISTRATION PART 1—SCOPE AND APPLICATION 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. This 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 in Section 402.6. 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 pipingto 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 in 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 in Section 401.1.1, gas piping, meters, gas pressure regulators and other appurte- nances used by the serving gas supplier in the dis- tribution of gas, other than undiluted LP -gas. 17. Building 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. [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 provide min- imum standards to safeguard life or limb, health, property and public welfare by regulating and controlling the design, con- struction, 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. 2012 INTERNATIONAL FUEL GAS CODE" 1 I II I Copy,gbtOO?.o„ ICC ALL RIGHTS RESERVED A-P—dby().(-)O,d,,Nombsxlow6ole9 oc SIP V,201902OsPM(PDT)p—Pot to IL eAgemt,oUICC No FYUPep,oddtoaoAYUP, (,,Fod,Yo¢tbymytl,dputy,o,ANb,to,au o,sd Single —oPIA opymg Podortuodmg FoIRbad ANY VNAVTHORIVED REPRODUCTION REDISTRIBUTION IS A VIOLATION OF THE FEDERAL COPYRIGHT ACT AND THE LICENSE AGREEMENT, AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER SCOPE AND ADMINISTRATION 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 Building 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 which are required by this code shall be maintained in compliance with the code edition under which they were installed. The owner or the owner's designated agent shall be responsible for maintenance of installations. To determine compliance with this provision, the code official shall have the authority to require an instal- lation 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 which will subject the structure to the special provisions of this code applicable 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 when 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 determined 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 as part of the requirements of this code to the prescribed extent of each such reference and as further regulated in Sec- tions 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. 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- 2012 INTERNATIONAL FUEL GAS CODE" Copy,gbt OO?.ot I ICC ALL RIGHTS RESERVED Awsed by (). (-) O,d,, Nombs x 100760189 oc Sep s o.2o19 Oi R9 PM (PDT)p—Potto l»eAge mt,oU ICC No FYUP ep,od dtoa o AYUP, ,Fod,Yo¢ebymytl,dputy,o,ANb,to,au o,sd Single —oPIA opymg PodortuodmgFokbad ANY VNAVTHORIVED REPRODUCTION REDISTRIBUTION IS A VIOLATION OF THE FEDERAL COPYRIGHT ACT AND THE LICENSE AGREEMENT, AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER SCOPE AND ADMINISTRATION dered liable personally, and is hereby relieved from all per- sonal 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. Any suit 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 representative 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. All reports of such inspec- tions shall be in writing and shall be certified by a responsible officer of such approved agency or by the responsible indi- vidual. The code official is authorized to engage such expert opinion as deemed necessary to report upon unusual technical issues that arise, subject to the approval of the appointing authority. [A] 104.4 Right of entry. Whenever it is necessary to make an inspection to enforce the provisions of this code, or when- ever the code official has reasonable cause to believe that there exists in a building or upon any premises any conditions or violations of this code that make the building or premises unsafe, dangerous or hazardous, the code official shall have the authority to enter the building or premises at all reason- able times to inspect or to perform the duties imposed upon the code official by this code. If such building or premises is occupied, the code official shall present credentials to the occupant and request entry. If such building or premises is unoccupied, the code official shall first make a reasonable effort to locate the owner 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 pro- vided by law to secure entry. When the code official has first obtained a proper inspec- tion warrant or other remedy provided by law to secure entry, an owner or occupant or person having charge, care or control of the building or premises shall not fail or neglect, after proper request is made as herein provided, to promptly permit entry therein by the code official 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. Whenever there are practical diffi- culties involved in carrying out the provisions of this code, the code official shall have the authority to grant modifica- tions for individual cases, upon application of the owner or owner's representative, 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, methods, appliances and equipment The provisions of this code are not intended to prevent the installation of any material or to prohibit any method of construction not specifically prescribed by this code, provided that any such alternative has been approved. An alternative material 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 pro- visions of this code, and that the material, method or work offered is, for the purpose intended, at least the equivalent of that prescribed in this code in quality, strength, effectiveness, fire resistance, durability and safety. [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. Whenever there is insufficient evidence of compliance with the provisions of this code, 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 2012 INTERNATIONAL FUEL GAS CODE" 3 I II I C,Ty,ght @ zoI I ICC ALL RIGHTS RESERVED Awsedby().(-)O,d,,Nmmbsx1oovco189 oc SIP so.2.o19 oa.ws PM(PDT)p—Pot to IL eAgemt,oUICC No FYUPep,oddtoaoAYUP, (,,Fod,Yo¢ebymytl,dputy,o,ANb,to,au o,sd Single —oPIA opymg PodortuodmgFokbad ANY VNAVTHORIVED REPRODUCTION REDISTRIBUTION IS A VIOLATION OF THE FEDERAL COPYRIGHT ACT AND THE LICENSE AGREEMENT, AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER SCOPE AND ADMINISTRATION the absence of recognized and accepted test methods, the code official shall approve the testing procedures. [A] 105.3.2 Testing agency. All 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 which meet the requirements of this code for new materials is permitted. Used appliances, equip- ment 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, equipmentand 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, 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 done, shall first make appli- cation 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] 106.2 Permits not required. Permits shall not be required for the following: 1. Any portable heating appliance. 2. Replacement of any minor component of an appliance or equipmentthat does not alter approval of such appli- ance or equipment or make such appliance or equip- mentunsafe. 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 authorized agent. The permit application shall indicate the proposed occupancy of all parts of the building 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 when required by state law. Construction documents shall be drawn to scale and shall be of sufficient clarity to indi- 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 fireblocking. 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 permit has been issued; except that the code official shall have the authority to grant one or more extensions of time for additional periods not exceeding 180 days each. The extension shall be requested in writing and justifiable cause 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 permit presuming to give authority to violate or cancel the provisions of this code shall be invalid. 2012 INTERNATIONAL FUEL GAS CODE" Copy,gbt OO?.o„ ICC ALL RIGHTS RESERVED Awsed by (). (-) O,d,, Nmmbs x,00vco,es oc Sep V,2o19 Oi R9 PM (PDT)p—Potto l»eAge mt,oU ICC No FYUP ep,od dtoa o AYUP, ,Fod,Yo¢ebymytl,dputy,o,ANb,to,au o,sd Single —oPIA opymg PodortuodmgFokbad ANY VNAVTHORIVED REPRODUCTION REDISTRIBUTION IS A VIOLATION OF THE FEDERAL COPYRIGHT ACT AND THE LICENSE AGREEMENT, AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER SCOPE AND ADMINISTRATION The issuance of a permit based upon 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 when 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 permit, 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 no changes have been or will be made in the original con- struction documents for such work, and further that such suspension or abandonment has not exceeded one year. [A] 106.5.4 Extensions. A permittee 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 permittee 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 times 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 which 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 which was erroneously paid or collected. 2. Not more than [SPECIFY PERCENTAGE] percent of the permit fee paid when no work has been done under a permit issued in accordance with this code. 3. Not more than [SPECIFY PERCENTAGE] percent of the plan review fee paid when an application for a per- mit for which a plan review fee has been paid is 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 permittee 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 determine 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 accessible and exposed for inspection purposes 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 jurisdiction. Inspec- tions presuming to give authority to violate or cancel the pro- visions 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, upon 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 cor- rected. The holder of the permit shall be responsible for scheduling such inspections. Underground inspection shall be made after trenches or ditches are excavated and bedded, piping is installed and before backfill is put in place. When 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. 2012 INTERNATIONAL FUEL GAS CODE" 5 I II I C,gbtOO?.ot I ICC ALL RIGHTS RESERVED Awsedby().(-)O,d,,Nombsx1oovco189 oc SIP so.2.o19 oa.ws PM(PDT)p—Pot to IL eAg—mt,oUICC No FYUPep,oddtoaoAYUP, (,,Fod,Yo¢ebymytl,dputy,o,ANb,to,au o,sd Single —ooly, mpymg Pod-Pyodmg FoIRbad ANY VNAVTHORIVED REPRODUCTION REDISTRIBUTION IS A VIOLATION OF THE FEDERAL COPYRIGHT ACT AND THE LICENSE AGREEMENT, AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER SCOPE AND ADMINISTRATION 2. Rough -in inspection shall be made after the roof, fram- ing, fireblocking 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 existing heating appliance serving an occupied por- tion 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 above, the code official is authorized to make or require other inspections of any construction work to ascertain compliance with the provisions 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 his 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 inspections of such work that are 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 fails 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. [Al 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. [Al 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 installa- tion, including a description of the system and its compo- nents, the basis upon 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. [Al 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. [Al 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 in -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 installa- tion shall have an identifying label permanently affixed to the system indicating that factory inspections have been performed. [Al 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. [Al 107.3 Testing. Installations shall be tested as required in this code and in accordance with Sections 107.3.1 through 107.3.3. Tests shall be made by the permit holder and observed by the code official. [Al 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. [Al 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. [Al 107.3.3 Reinspection 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- ing. [Al 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. [Al 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. [Al 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. [Al 107.6 Connection of service utilities. A person shall not make connections from a utility, source of energy, fuel or power to any building or system that is regulated by this code for which a permit is required until authorized by the code official. 2012 INTERNATIONAL FUEL GAS CODE" Copy,gbt OO?.ot I ICC ALL RIGHTS RESERVED Awsed by (). (-) O,d,, Nombs x 100760189 oc Sep s o.2o19 Oi R9 PM (PDT)p—Potto l»eAge mt,oU ICC No FYUP ep,od dtoa o AYUP, ,Fod,Yo¢ebymytl,dputy,o,ANb,to,au o,sd Single —oPIA opymg PodortuodmgFo]Rbad ANY VNAVTHORIVED REPRODUCTION REDISTRIBUTION IS A VIOLATION OF THE FEDERAL COPYRIGHT ACT AND THE LICENSE AGREEMENT, AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER SCOPE AND ADMINISTRATION 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, fail 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 done 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 agent, or the person doing the work. The notice shall state the condi- tions 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 per- son is directed to perform to remove a violation 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. When 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. [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 wherever possible, the owner and occupant of the building, 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 build- ing, structure or service system 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 which have been discon- nected 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 reconnection and use of such installations. When 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. 2012 INTERNATIONAL FUEL GAS CODE" 7 I II I C,gbtOO?.ot I ICC ALL RIGHTS RESERVED Awsedby().(-)O,d,,Nombsx1oovco189 oc SIP so.2.o19 oa.ws PM(PDT)p—Pot to IL eAg—mt,oUICC No FYUPep,oddtoaoAYUP, (,,Fod,Yo¢ebymytl,dputy,o,ANb,to,au o,sd Single —ooly, mpymg Pod-Pyodmg FoIRbad ANY VNAVTHORIVED REPRODUCTION REDISTRIBUTION IS A VIOLATION OF THE FEDERAL COPYRIGHT ACT AND THE LICENSE AGREEMENT, AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER SCOPE AND ADMINISTRATION [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 five years; one for four years; one for three years; one for two years and one for one year. Thereafter, each new member shall serve for five 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 at least 10 years' experience, five 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 at least 10 years' experience, five of which shall have been in responsible charge of work. 4. Registered design professional with electrical engi- neering experience; or an electrical contractor with at least 10 years' experience, five 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 at least 10 years' experience, five 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 five 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 chief 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. All hearings before the board shall be open to the public. The appellant, the appellant's represen- tative, 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. When 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. 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 terminate such permit for a temporary structure or use and to order the temporary structure or use to be dis- continued. 2012 INTERNATIONAL FUEL GAS CODE" Copyngbt OO?.ot I ICC ALL RIGHTS RESERVED Awsed by (). (-) O,d,, Nombs x 100760189 oc Sep s o.2o19 Oi R9 PM (PDT)p—Potto l»eAge mt,oU ICC No FYUP ep,od dtoa o AYUP, ,Fod,Yo¢ebymytl,dputy,o,ANb,to,au o,sd Single —oPIA mpymg PodortuodmgFokbad ANY VNAVTHORIVED REPRODUCTION REDISTRIBUTION IS A VIOLATION OF THE FEDERAL COPYRIGHT ACT AND THE LICENSE AGREEMENT, AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER CHAPTER 2 DEFINITIONS 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 in 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 and/or dehumidified air 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. Air that is provided to replace air being exhausted. [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 terminated above ground outside of a building. [M] APPLIANCE. Any apparatus or device that utilizes a fuel or raw material to produce light, heat, power, refrigera- tion or air conditioning. APPLIANCE, AUTOMATICALLY CONTROLLED. Appliances equipped with an automatic burner ignition and safety shutoff device and other automatic devices which accomplish 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. 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 outside atmosphere through an approved chimney or vent system. [A] APPROVED. Acceptable to the code official or other authority having jurisdiction. [A] APPROVED AGENCY. An established and recognized agency that is approved by the code official and regularly engaged in conducting tests or furnishing inspection services. 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. 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 2012 INTERNATIONAL FUEL GAS CODE" 9 I II I Copy,gbtOO?.o„ ICC ALL RIGHTS RESERVED A-P—dby().(-)O,d,,Nombsxlow6ole9 oc SIP V,201902OsPM(PDT)p—Pot to IL eAgemt,oUICC No FYUPep,oddtoaoAYUP, (,,Fod,Yo¢tbymytl,dputy,o,ANb,to,au o,sd Single —oPIA opymg PodortuodmgFokbad ANY VNAVTHORIVED REPRODUCTION REDISTRIBUTION IS A VIOLATION OF THE FEDERAL COPYRIGHT ACT AND THE LICENSE AGREEMENT, AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER DEFINITIONS 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 250oF (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 250oF (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 JUMPER. A conductor installed to electrically connect metallic gas piping to the grounding electrode sys- tem. BRAZING. A metal joining process wherein coalescence is produced by the use of a nonferrous filler metal having a melting point above 1,000°F (538°C), but lower than that of the base metal being joined. The filler material is distributed 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 air, 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 material 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 -built 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. 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. COMBUSTION AIR. Air necessary for complete combus- tion of a fuel, including theoretical air and excess air. [M] COMBUSTION CHAMBER. The portion of an appli- ance within which combustion occurs. COMBUSTION PRODUCTS. Constituents resulting from the combustion of a fuel with the oxygen of the air, including inert gases, but excluding excess air. CONCEALED LOCATION. A location that cannot be accessed without damaging permanent parts of the building 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. 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. 10 2012 INTERNATIONAL FUEL GAS CODE" C,Ty,gbt@ ON I ICC ALL RIGHTS RESERVED A-P—d by ().(-)O,d,,Nmmbsx/00760/89 oc SIP SO, 201902 Os PM(PDT) p—Pot to l»eAge mt,oUICC No FYUP ep,odw.noa oAYUP, S I ( [IFod Ut.. by POVOt pPLO I,±Nb�to, P,,UoFsd SmgIP—oPIA Tymg Pod o NyodmgFoARbtAd ANY VNAVTHORIVED REPRODUCTION OR DISTRIBUTED N IS A VIOLATION OF THE FOR REAL COPYRIGHT 11 AND THE LICENSE AGREEMENT, AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER DEFINITIONS CONTROL. A manual or automatic device designed to regu- late 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 (16°C), saturated with water vapor and under a pressure equivalent to that of 30 inches of mercury (101 kPa). DAMPER. A manually or automatically controlled device to regulate draft or the rate of flow of air or combustion 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). [B] 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. 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 outside atmosphere and all flue gases are discharged directly to the outside atmosphere. DRAFT. The pressure difference existing between the appli- ance 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 termination. Natural draft. The pressure difference created by a vent or chimney 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 (1) provide for ready escape of the flue gases from the appliance in the event of no draft, back - draft or stoppage beyond the draft hood, (2) prevent a back - draft from entering the appliance, and (3) neutralize the effect of stack action of the chimney or gas vent upon operation of the appliance. DRAFT REGULATOR. A device that functions to maintain a desired draft in the appliance by automatically reducing the draft to the desired value. DRIP. The container placed at a low point in a system of pip- ing 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 -air 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. [B] 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 (EFV). 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. FIREPLACE. A fire chamber and hearth constructed of non- combustible material for use with solid fuels and provided 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. 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 I 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. 2012 INTERNATIONAL FUEL GAS CODE® 11 I II I CoTy,ght @ zoI I ICC ALL RIGHTS RESERVED Awsedby().(-)O,d,,Nmmbsx1oovco189 oc SIP so.2.o19 oa.ws PM(PDT)p—Pot to IL eAgemt,oUICC No FYUPep,oddtoaoAYUP, (,,Fod,Yo¢ebymytl,dputy,o,ANb,to,au o,sd Single —oPIA opymg PodortuodmgFokbad ANY VNAVTHORIVED REPRODUCTION REDISTRIBUTION IS A VIOLATION OF THE FEDERAL COPYRIGHT ACT AND THE LICENSE AGREEMENT, AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER DEFINITIONS E* [B] FLOOD HAZARD AREA. The greater of the following two areas: 1. The area within a floodplain subject to a 1 percent or greater chance of flooding in any given year. 2. 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 which pro- vides the primary means for circulating air. Gravity type. A floor furnace depending primarily upon circulation of air by gravity. This classification shall also include floor furnaces equipped with booster -type fans which 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 air in appliance flues or heat exchangers. FLUE LINER (LINING). A system or material used to form the inside surface of a flue in a chimney or vent, for the pur- pose of protecting the surrounding structure from the effects of combustion products and for conveying combustion prod- ucts 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 air 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. Downflow furnace. A furnace designed with airflow dis- charge vertically downward at or near the bottom of the furnace. Forced air furnace with cooling unit A single -package unit, consisting of a gas -fired forced -air furnace of one of the types listed below combined with an electrically or fuel gas -powered summer air-conditioning system, con- tained in a common casing. Forced -air type. A central furnace equipped with a fan or blower which provides the primary means for circulation of air. Gravity furnace with booster fan. A furnace equipped with a booster fan that does not materially restrict free cir- culation of air by gravity flow when the fan is not in oper- ation. Gravity type. A central furnace depending primarily on circulation of air by gravity. Horizontal forced -air type. A furnace with airflow through the appliance essentially in a horizontal path. Multiple -position furnace. A furnace designed so that it can be installed with the airflow discharge in the upflow, horizontal or downflow direction. Upflow furnace. A furnace designed with airflow dis- charge vertically upward at or near the top of the furnace. This classification includes "highboy" furnaces with the blower mounted below the heating element and "lowboy" furnaces with the blower mounted beside the heating ele- ment. 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 which 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 high - hazard group classification. HOUSE PIPING. See "Piping system." [F] HYDROGEN CUT-OFF ROOM. See Section 702.1. HYDROGEN GENERATING APPLIANCE. See Section 702.1. 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 switching devices. INCINERATOR. An appliance used to reduce combustible refuse material to ashes and which 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 12 2012 INTERNATIONAL FUEL GAS CODE" Copy,gbt@ ON I ICC ALL RIGHTS RESERVED A-P—d by ().(-)O,d,,Nombsx/00760/89 oc SIP SO, 2019 oa. Os PM(PDT) p—Pot to l»eAge mt,oUICC No FYUP ep,odw.noa oAYUP, S I ( [IFod Ut.. by POVO d party. o,±RYb�toc P,,Uoosd Single —oPIA PTymg Pod o Nyodmgplokb,Ad ANY VNAVTHORIVED REPRODUCTION OR DISTRIBUTED N IS A VIOLATION OF THE TRY REAL COPYRIGHT 11 AND THE LICENSE AGREEMENT, AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER DEFINITIONS 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 air. 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 unvented type. JOINT, FLANGED. A joint made by bolting together a pair of flanged ends. 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 joints obtained by the joining of metal parts through a positive - holding mechanical construction, such as press joint, flanged joint, threaded joint, flared joint or compression joint. JOINT, PLASTIC ADHESIVE. A joint made in thermoset plastic piping by the use of an adhesive substance which forms a continuous bond between the mating surfaces with- out dissolving either one of them. JOINT, PLASTIC HEAT FUSION. A joint made in ther- moplastic piping by heating the parts sufficiently to permit fusion of the materials when the parts are pressed together. JOINT, WELDED. A gas-tightjoint 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, inspection 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 equipmentor 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. LIVING SPACE. Space within a dwelling unit utilized for living, sleeping, eating, cooking, bathing, washing and sanita- tion purposes. LOG LIGHTER. A manually operated solid fuel ignition appliance for installation in a vented solid fuel -burning 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 air 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- determined steps or increments of movement as caused by its actuating medium. [M] NONCOMBUSTIBLE MATERIALS. Materials that, when tested in accordance with ASTM E 136, have at least three of four specimens tested meeting all of the following criteria: 1. 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. 2. There shall not be flaming from the specimen after the first 30 seconds. 3. 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. 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 section. 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 2012 INTERNATIONAL FUEL GAS CODE" 13 I " ' Copy,gbtOO?.o„ ICC ALL RIGHTS RESERVED A-P—dby().(-)O,d,,Nombsxlow6ole9 oc SIP V,201902OsPM(PDT)p—Pot to IL eAgemt,oUICC No FYUPep,oddtoaoAYUP, (,,Fod,Yo¢tbymytl,dputy,o,ANb,to,au o,sd Single —oPIA opymg PodortuodmgFokbad ANY VNAVTHORIVED REPRODUCTION REDISTRIBUTION IS A VIOLATION OF THE FEDERAL COPYRIGHT ACT AND THE LICENSE AGREEMENT, AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER DEFINITIONS the main and pilot burners if the oxygen in the surrounding atmosphere is reduced below a predetermined level. PILOT. A small flame that is utilized to ignite the gas at the main burner or burners. PIPING. Where used in this code, "pipink' refers to either pipe or tubing, or both. Pipe. A rigid conduit of iron, steel, copper, brass or plas- tic. Tubing. Semirigid conduit of copper, aluminum, plastic or steel. PIPING SYSTEM. All fuel piping, valves and fittings from the outlet of the point of delivery to the outlets of the appli- ance shutoff valves. PLASTIC, THERMOPLASTIC. A plastic that is capable 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 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 (MP 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. Types of appliance regulators are as follows: Adjustable. 1. Spring type, limited adjustment. A regulator in which the regulating force acting upon the dia- phragm is derived principally from a spring, the loading of which is adjustable over a range of not more than 15 percent of the outlet pressure at the midpoint of the adjustment range. 2. Spring type, standard adjustment. A regulator in which the regulating force acting upon the dia- phragm is derived principally from a spring, the loading of which is adjustable. The adjustment means shall be concealed. Multistage. A regulator for use with a single gas whose adjustment means is capable of being positioned manually or automatically to two or more predetermined outlet pres- sure settings. Each of these settings shall be adjustable or nonadjustable. The regulator may modulate outlet pres- sures automatically between its maximum and minimum predetermined outlet pressure settings. Nonadjustable. 1. Spring type, nonadjustable. A regulator in which the regulating force acting upon the diaphragm is derived principally from a spring, the loading of which is not field adjustable. 2. Weight type. A regulator in which the regulating force acting upon the diaphragm is derived from a weight or combination of weights. 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, 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, 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. 14 2012 INTERNATIONAL FUEL GAS CODE" Copy,gbt@ ON I ICC ALL RIGHTS RESERVED A-P—d by ().(-)O,d,,Nombsx/00760/89 oc SIP SO, 2019 oa. Os PM(PDT) p—Pot to l»eAge mt,oUICC No FYUP ep,odw.noa oAYUP, S I ( [IFod Ut.. by POVO d party. o,±RYb�toc P,,Uoosd SmgIP—oPIA Tymg Pod o NyodmgFoARbtAd ANY VNAVTHORIVED REPRODUCTION OR DISTRIBUTED N IS A VIOLATION OF THE FOR REAL COPYRIGHT 11 AND THE LICENSE AGREEMENT, AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER DEFINITIONS E* 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 predetermined temperature and that must be manually returned to the closed position. Reseating 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 also "Vented room heater") SAFETY SHUTOFF DEVICE. See "Flame safeguard." [B] SHAFT. An enclosed space extending through one or more stories of a building, connecting vertical openings in successive floors, or floors and the roof. [B] 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 air, both measured under the same condition. STATIONARY FUEL CELL POWER PLANT. A self- contained package or factory -matched packages which con- stitute 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. Integral gas valve type. An automatic device, actuated by temperature changes, designed to control the gas supply to the burner(s) in order to maintain temperatures between predetermined limits, and in which the thermal actuating element is an integral part of the device. 1. Graduating thermostat. A thermostat in which the motion of the valve is approximately in direct propor- tion to the effective motion of the thermal element induced by temperature change. 2. Snap -acting thermostat. A thermostat in which the ther- mostatic valve travels instantly from the closed to the open position, and vice versa. [P] THIRD -PARTY CERTIFICATION AGENCY. An approved agency operating a product or material certification 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 third -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- ments. TRANSITION FITTINGS, PLASTIC TO STEEL. An adapter for joining plastic pipe to steel pipe. The purpose of this fitting is to provide a permanent, pressure -tight connec- tion between two materials which cannot be joined directly one to another. UNIT HEATER. High -static pressure type. A self-contained, automati- cally controlled, vented appliance having integral means for circulation of air against 0.2 inch (15 mm Hz0) or greater static pressure. Such appliance is equipped with provisions for attaching an outlet air duct and, where the appliance is for indoor installation remote from the space to be heated, is also equipped with provisions for attaching an inlet air duct. Low -static pressure type. A self-contained, automati- cally controlled, vented appliance, intended for installa- tion in the space to be heated without the use of ducts, having integral means for circulation of air. Such units are allowed to be equipped with louvers or face extensions made in accordance with the manufacturer's specifica- tions. UNLISTED BOILER. A boiler not listed by a nationally recognized testing agency. UNVENTED ROOM HEATER. An unvented 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- 2012 INTERNATIONAL FUEL GAS CODE" 15 I II I Copy,gbtOO?.o„ ICC ALL RIGHTS RESERVED A-P—dby().(-)O,d,,Nombsxlow6ole9 oc SIP V,201902OsPM(PDT)p—Pot to IL eAgemt,oUICC No FYUPep,oddtoaoAYUP, (,,Fod,Yo¢tbymytl,dputy,o,ANb,to,au o,sd Single —oPIA opymg PodortuodmgFokbad ANY VNAVTHORIVED REPRODUCTION REDISTRIBUTION IS A VIOLATION OF THE FEDERAL COPYRIGHT ACT AND THE LICENSE AGREEMENT, AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER DEFINITIONS 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. 1VIILINow IWILII" 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 nonpositive 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 warm 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 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 outside 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 nonpositive 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. WATER HEATER. Any heating appliance or equipment that heats potable water and supplies such water to the pota- ble hot water distribution system. 16 2012 INTERNATIONAL FUEL GAS CODE" Copy,ght @ ON I ICC ALL RIGHTS RESERVED Awsed by ().(-)O,d,,Nombsx 100760189 oc Sep SO, 2019 oa. ws PM(PDT) p—Pot to l»eAge mt,oUICC No FYUP ep,odw.noa oAYUP, S I ( [IFod Ut.. by POVO d party. o,±RYb�toc P,,Uoosd Single —oPIA PTymg Pod o Nyodmgplokb,Ad ANY VNAVTHORIVED REPRODUCTION OR DISTRIBUTED N IS A VIOLATION OF THE TRY REAL COPYRIGHT 11 AND THE LICENSE AGREEMENT, AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER CHAPTER 3 GENERAL REGULATIONS 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 air for gas -fired appliances shall be governed by Section 304. The requirements for combustion and dilution air 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 upon 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 listed appli- ances, the seal or mark of the testing agency. A label shall also 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- tional Building Code. [B] 301.11 Flood hazard. For structures located in flood haz- ard areas, the appliance, equipment and system installations regulated by this code shall be located at or above the eleva- tion 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, dur- ing the occurrence of flooding to such elevation. 301.12 Seismic resistance. When earthquake loads are appli- cable in accordance with the International Building Code, the supports shall be designed and installed for the seismic forces in accordance with that code. 301.13 Ducts. All ducts required for the installation of sys- tems 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. 2012 INTERNATIONAL FUEL GAS CODE" 17 I II I C,gbtOO?.ot I ICC ALL RIGHTS RESERVED Awsedby().(-)O,d,,Nmmbsx1oovco189 oc SIP so.2.o19 oa.ws PM(PDT)p—Pot to IL eAg—mt,oUICC No FYUPep,oddtoaoAYUP, (,,Fod,Yo¢ebymytl,dputy,o,ANb,to,au o,sd Single —ooly, mpymg Pod-Pyo,k,Fokbad ANY VNAVTHORIVED REPRODUCTION REDISTRIBUTION IS A VIOLATION OF THE FEDERAL COPYRIGHT ACT AND THE LICENSE AGREEMENT, AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER GENERAL REGULATIONS 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 [B] 302.1 Structural safety. The building shall not be weak- ened by the installation of any gas piping. In the process of installing or repairing any gas piping, the finished floors, walls, ceilings, tile work or any other part of the building or premises which 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. [B] 302.2 Penetrations of floor/ceiling assemblies and fire - resistance -rated assemblies. Penetrations of floor/ceiling assemblies and assemblies required to have a fire -resistance rating shall be protected in accordance with the International Building Code. [B] 302.3 Cutting, notching and boring in wood members. The cutting, notching and boring of wood members shall comply with Sections 302.3.1 through 302.3.4. [B] 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. [B] 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 diameter shall not exceed one-third 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. [B] 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 notching 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. [B] 302.3.4 Bored holes. A hole not greater in diameter than 40 percent of the stud depth is permitted to be bored in any wood stud. Bored holes not greater than 60 percent of the depth of the stud are permitted in nonload-bearing partitions or in any wall where each bored stud is doubled, provided not more than two such successive doubled studs are so bored. In no case shall the edge of the bored hole be nearer than V, inch (15.9 mm) to the edge of the stud. Bored holes shall not be located at the same section of a stud as a cut or notch. [B] 302.4 Alterations to trusses. Truss members and compo- nents 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. [B] 302.5 Cutting, notching and boring holes in structural steel framing. The cutting, notching and boring of holes in structural steel framing members shall be as prescribed by the registered design professional. [B] 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, notching and boring holes of steel floor/ roof decking shall be as prescribed by the registered design professional. [B] 302.7 Cutting, notching and boring holes in nonstruc- tural cold -formed steel wall framing. Flanges and lips of nonstructural cold -formed steel wall studs shall be permitted along the centerline of the web of the framing member, shall not exceed V/z inches (38 mm) in 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 304.5. 3. A single wall -mounted unvented room heater is installed in a bathroom and such unvented room heater is equipped as specified in Section 621.6 and has an input rating not greater than 6,000 Btu/h (1.76 M). The bathroom shall meet the required volume criteria of Section 304.5. 18 2012 INTERNATIONAL FUEL GAS CODE" Copy,gbt@ ON I ICC ALL RIGHTS RESERVED A-P—d by ().(-)O,d,,Nombsx/00760/89 oc SIP SO, 2019 oa. Os PM (PDT) p—Pot to l»eAge mt,oUICC No FYUP ep,odw.noa oAYUP, rk S I ( [IFodUt.. byzoyUb,dparty.oPAxmbmoo Uoosd Single—oPIA PTymg PodortxodmgFokbad ANY VNAVTHORIVED REPRODUCTION REDISTRIBUTION IS A VIOLATION OF THE ,EDERAL COPYRIGHT 11 AND THE LICENSE AGREEMENT, AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER GENERAL REGULATIONS 4. A single wall -mounted unvented room heater is installed in a bedroom and such unvented room heater is equipped as specified in Section 621.6 and has an input rating not greater than 10,000 Btu/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. All combustion air shall be taken directly from the outdoors in accordance with Section 304.6. 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 a minimum of 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 a mini- mum of 4 inches (102 mm) above adjoining grade and shall have sufficient 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. Directventappliances, gas appliances of other than natural draft design and vented gas appliances other than Category I 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 614.5. 304.2 Appliance location. Appliances shall be located so as not to interfere with proper circulation of combustion, venti- lation and dilution air. 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 so as to pre - vent 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 air shall be determined 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 communicating 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 minimum required vol- ume shall be 50 cubic feet per 1,000 Btu/h (4.8 m3/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 determined as follows: For appliances other than fan -assisted, calculate vol- ume using Equation 3-1. Required Uolume,i,,> Aft IDeeRr ACH �1,000 Btu/h� (Equation 3-1) For fan -assisted appliances, calculate volume using Equation 3-2. Required Volume D,,> 15 fir I"N' ACH �1,000 Btu/� (Equation 3-2) where: Ith,. = All appliances other than fan assisted (input in Btu/h). I,, = Fan -assisted appliance (input in Btu/h). ACH = Air change per hour (percent of volume of space exchanged per hour, expressed as a decimal). For purposes of this calculation, an infiltration rate greater than 0.60 ACHshall 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. Each opening shall have a minimum free area of 1 square inch per 1,000 Btu/h (2,200 mm'/kW) of the total input rating of all appliances in the space, but not less than 100 square inches (0.06 m'). One opening shall com- mence within 12 inches (305 mm) of the top and one opening shall commence within 12 inches (305 mm) of 2012 INTERNATIONAL FUEL GAS CODE" 19 I II I C,IVYEItOO?.o„ ICC ALL RIGHTS RESERVED A-P—dby().(-)O,d,,Nmmbsxlow6ole9 oc SIP V,2o19 oa.ws PM(PDT)p—Pot to IL eAgemt,oUICC No FYUPep,oddtoaoAYUP, (,,Fod,Yo¢tbymytl,dputy,o,ANb,to,au o,sd Single —oPIA mpymg PodortuodmgFokbad ANY VNAVTHORIVED REPRODUCTION REDISTRIBUTION IS A VIOLATION OF THE FEDERAL COPYRIGHT ACT AND THE LICENSE AGREEMENT, AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER GENERAL REGULATIONS the bottom of the enclosure. The minimum 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 as communicating spaces where such spaces are connected by one or more openings in doors or floors having a total minimum free area of 2 square inches per 1,000 Btu/h (4402 mm2/kW) 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 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 mm2/kW) of total input rating of all appliances in the enclosure [see Figures 304.6.1(1) and 304.6.1(2)]. 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 (1,100 mm2/ kW) of total input rating of all appliances in the enclosure [see Figure 304.6.1(3)]. Furnace Water ® heater CD FIGURE 304.5.3 ALL AIR FROM INSIDE THE BUILDING (see Section 304.5.3) OPENING OPENING ALTERNATE AIR INLET OPENING T( OUTDOORS VENTILATION LOUVERS FOR UNHEATED CRAWL SPACE \TION LOUVERS END OF ATTIC) ITLET AIR ET AI R FIGURE 304.6.1(1) ALL AIR FROM OUTDOORS —INLET AIR FROM VENTILATED CRAWL SPACE AND OUTLET AIR TO VENTILATED ATTIC (see Section 304.6.1) CHIMNEY OR GAS VENT Furnace Water ® heater 0 For SI: 1 foot = 304.8 mm. VENTILATION LOUVERS -(EACH END OF ATTIC) OUTLET AIR - INLET AIR DUCT (ENDS 1 FOOT (305 MM) ABOVE FLOOR) FIGURE 304.6.1(2) ALL AIR FROM OUTDOORS THROUGH VENTILATED ATTIC (see Section 304.6.1) 20 2012 INTERNATIONAL FUEL GAS CODE* + + Copyright © 2011 ICC. ALL RIGHTS RESERVED. Accessed by (), (-) Order Number #100760189 on Sep 30, 2019 02:03 PM (PDT) 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. GENERAL REGULATIONS 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 at least 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 mini- mum 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 304.7.3. 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 minus the ratio of interior spaces. 3. 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 OUTLET AIR DUCT Water heater INLET AIR DUCT 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 air 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 Btu/h (0.034 m3/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 air. 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 air. 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 not smaller than 1/4 inch (6.4 mm) . Nonmotorized louvers and grilles shall be fixed in the open position. Motorized louvers OPENING ALTERNATIVE OPENING LOCATION FIGURE 304.6.2 SINGLE COMBUSTION AIR OPENING, ALL AIR FROM THE OUTDOORS (see Section 304.6.2) 2012 INTERNATIONAL FUEL GAS CODE° 21 Copyright © 2011 ICC. ALL RIGHTS RESERVED. Accessed by Q, (-) Order Number #100760189 on Sep 30, 2019 02:03 PM (PDT) 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. GENERAL REGULATIONS 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 fail 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- ing 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 air to 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 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. Exception: Direct -vent gas -fired appliances designed for installation in a solid fuel -burning fire- 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- rine 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 installation 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 determined by the code official. 305.2 Hazardous area. Equipmentand 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 -dispensing 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 unfit 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 which 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 a minimum of 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 vehi- 22 2012 INTERNATIONAL FUEL GAS CODE" C,gbt@ ON I ICC ALL RIGHTS RESERVED Awsed by ().(-)O,d,,Nmmbsx 100760189 oc Sep SO, 201902 ws PM(PDT)p—Pot to IL eAg—mt,oUICC No FYUP ep,odw.noa oAYUP, S I IT [,Fod,... by POVOtput, I,ANb�to,P,,UoFsd Single—mly mpymg Pod oNyo,k,Fokb,Ad ANY VNAVTHORIVED REPRODUCTION OR DISTRIBUTED N IS A VIOLATION OF THE riRPEDREAL COPYRIGHT 11 AND THE LICENSE AGREEMENT, AND SUBJECT 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. Boiler 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 installation 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 a detached building or room, separated from repair areas by walls or partitions, floors or floor -ceiling assemblies that are constructed so as to prohibit the transmission of vapors and having a fire -resis- tance rating of not less than 1 hour, and that have no openings in the wall separating the repair area within 8 feet (2438 mm) of the floor. Wall penetrations shall be firestopped. Air for combustion purposes shall be obtained from the outdoors. The appliance room shall not be used for the storage of com- bustible materials. Exceptions: 1. Overhead heaters where installed not less than 8 feet (2438 mm) above the floor shall be permitted. 2. Heating appliances for vehicle repair areas where there is no dispensing or transferring of Class I or II flammable or combustible liquids or liquefied petro- leum gas 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 [M] 306.1 Access for maintenance and replacement. Appliances shall be accessible for inspection, service, repair and replacement without disabling the function of a fire -resis- tance -rated assembly or removing permanent construction, other appliances, or any other piping or ducts not connected to the appliance being inspected, serviced, repaired or replaced. A level working space at least 30 inches deep and 30 inches wide (762 mm by 762 mm) shall be provided in front of the control side to service an appliance. [M] 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 min), is present at the front or service side of the appliance with the door open. [M] 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 not be 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 a minimum of 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 luminaire 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] 306.4 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 not be 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- 2012 INTERNATIONAL FUEL GAS CODE" 23 I II I C,gbtOO?.ot I ICC ALL RIGHTS RESERVED Awsedby().(-)O,d,,Nombsx1oovco189 oc SIP so.2.o19 oa.ws PM(PDT)p—Pot to IL eAg—mt,oUICC No FYUPep,oddtoaoAYUP, (,,Fod,Yo¢ebymytl,dputy,o,ANb,to,au o,sd Single —ooly, mpymg Pod-Pyo,k,Fokbad ANY VNAVTHORIVED REPRODUCTION REDISTRIBUTION IS A VIOLATION OF THE FEDERAL COPYRIGHT ACT AND THE LICENSE AGREEMENT, AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER GENERAL REGULATIONS 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 - bearing capacity to resist collapse. The clear access opening dimensions shall be a minimum of 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 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 luminaire 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 a maximum of 24 inches (610 mm) below the upper edge of the roof hatch, roof or parapet, as appli- cable. 3. Ladders shall have a toe spacing not less than 6 inches (152 mm) deep. 4. There shall be a minimum of 18 inches (457 mm) between rails. 5. Rungs shall have a minimum 0.75-inch (19 mm) diameter and be capable of withstanding a 300-pound (136.1 kg) load. 6. Ladders over 30 feet (9144 mm) in height shall be provided with offset sections and landings capable of withstanding 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 a minimum of 30 inches (762 mm) measured perpendicular to the rungs. This 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 (762 mm) by 30 inches (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 stairs installed in accor- dance with the requirements specified in the International 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 appli- ances or other 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 such appliances, com- ponents and roof hatch openings and the top of the guard 24 2012 INTERNATIONAL FUEL GAS CODE" Co,gbt@ ON I ICC ALL RIGHTS RESERVED Awsed by ().(-)O,d,,Nombsx 100760189 oc Sep SO, 2019 oa. ws PM(PDT)p—Pot to IL eAg—mt,oUICC No FYUP ep,odw.noa oAYUP, S I ( od,,to—by POVO d party. o,±RYb�toc P,,Uoosd Smglo mly, So, Pod o Nyo,k,Fokb,Ad ANY VNAVTHORIVED REPRODUCTION OR DISTRIBUTED N IS A VIOLATION OF THE riRPEDREAL COPYRIGHT 11 AND THE LICENSE AGREEMENT, AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER GENERAL REGULATIONS 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-diame- ter (533 mm) sphere and shall comply with the loading requirements for guards specified in the International Build- ing Code. 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 installation instructions. Condensate piping shall be of approved corrosion -resistant material and shall not be smaller than the drain connection on the appliance. Such piping shall maintain a minimum slope in the direction of discharge of not less than one -eighth unit ver- tical in 12 units horizontal (I-percentslope). [M] 307.3 Drain pipe materials and sizes. Components of the condensate disposal system shall be cast iron, galvanized steel, copper, cross -linked polyethylene, polybutylene, poly- ethylene, ABS, CPVC or PVC pipe or tubing. All compo- nents 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 drain line size shall be not less than '/q inch (19 mm) internal diameter and shall not decrease in size from the drain pan connection to the place of condensate dis- posal. Where the drain 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 drains 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 drain 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 drain pan shall not be required for appliances that automatically shut down operation in the event of a stoppage in the condensate drainage system. 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 an assembly listed for such application. Where required clearances are not listed in Table 308.2, the reduced clearances 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 combusti- bles for listed and labeled appliances and equipment shall be in accordance with the requirements of this section except that such clearances shall not be reduced where reduction is specifically prohibited by the terms of the appliance or equip- mentlisting [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. Air-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- rial 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- 4m 4m 2012 INTERNATIONAL FUEL GAS CODE" 25 I II I C,gbtOO?.ot I ICC ALL RIGHTS RESERVED Awsedby().(-)O,d,,Nombsx1oovco189 oc SIP so.2.o19 oa.ws PM(PDT)p—Pot to IL eAg—mt,oUICC No FYUPep,oddtoaoAYUP, (,,Fod,Yo¢ebymytl,dputy,o,ANb,to,au o,sd Single —ooly, mpymg Pod-Pyo,k,Fokbad ANY VNAVTHORIVED REPRODUCTION REDISTRIBUTION IS A VIOLATION OF THE FEDERAL COPYRIGHT ACT AND THE LICENSE AGREEMENT, AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER GENERAL REGULATIONS rial 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 rum) or less. 308.4.5 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 rum) 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. TABLE 308.2 aftoughk 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) 36 118 112 1 9 6 Allowable clearances with specified protection (inches) TYPE OF PROTECTION APPLIED TO Use Column 1 for clearances above appliance or horizontal connector. Use Column 2 AND COVERING ALL SURFACES OF COMBUSTIBLE for clearances from appliance, vertical connector and single -wall metal pipe. Sides Sides Sides Sides Sides MATERIAL WITHIN THE DISTANCE SPECIFIED AS THE REQUIRED CLEARANCE WITH NO PROTECTION Above antlrear Above antlrear Above antlrear Above antlrear Above antlrear [see Figures 308.2(1), 308.2(2), and 308.2(3)] Col. 1 Col. 2 Col. 1 Col. 2 Col. 1 Col. 2 Col. 1 Col. 2 Col. 1 Col. 2 1. 3'/2-inch-thick masonry wall without ventilated 24 12 9 6 5 airspace 2. l/z inch insulation board over 1-inch glass fiber or 24 18 12 9 9 6 6 5 4 3 mineral wool baits 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. 3'/2-inch-thick masonry wall with ventilated airspace 12 6 6 6 6 5. 0.024-inch (nominal 24 gage) sheet metal with 18 12 9 6 6 4 5 3 3 2 ventilated airspace 6. l/z inch -thick 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 rum, °C — h'F- 32)118], 1 pound per cubic foot= 16 02 kg/m', 1 For per inch per square foot per hour per °F — 0 144 Winn' K a Reduction of clearances from combustible materials shall not interfere with combustion air, draft hood clearance and relief, and accessibility of servicing b All 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 at least 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 1500°F IF Insulation material used as part of a clearance reduction system shall have a thermal conductivity of 10 For per inch per square foot per hour per °F or less i There shall be at least 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 j All 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 installation instructions 26 2012 INTERNATIONAL FUEL GAS CODE" C,gbt@ON I ICC ALL RIGHTS RESERVED Awsedby().(-)O,d6 Nombsx 1007601e9 oc Sep SO, 2019 oa. Os To (PDT) p—Pot to l»eAge mt,oUICC No FYUP ep,odw.noaoo AYUP, S I ( ,,Fod,Y.. byPoytlubdparty.o,ANb,toc Uo„Pd Single,ss¢®Iym,ymgandortuoc,p,okb,hd ANY VNAVTHORIVED REPRODUCTION REDISTRIBUTION IS A VIOLATION OF THE ,ED REAL COPYRIGHT 11 AND THE LICENSE AGREEMENT, AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER GENERAL REGULATIONS 100760189 CONSTRUCTION USING COMBUSTIBLE MATERIAL, PLASTERED OR UNPLASTERED ED CTSH.EE ETAL GAS EQUIPMENTR OR VENT CONNECTORTION "A" equals the clearance with no protection. " B" equals 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." FIGURE 308.2(1) EXTENT OF PROTECTION NECESSARY TO REDUCE CLEARANCES FROM APPLIANCE OR VENT CONNECTIONS 1-INCH MINIM AIRSPACE BE MASONRY AN COMBUSTIBLI 41NCH BRICK% BOTTOM AN[ OF BRICKS S FOR VENTILA A STRIP OF HEAVY GF USED FOR ADDED SUI NOTE DO NOT PLACE WALL TIES DIRECTLY APPLIANCE OR CONN For SI: I inch = 25.4 Tom. MOUNTED WITH SIDE AND TOP EDGES OPEN WALL WI H ALL CTOREDGE MOUNTED ' WITH ALL EDGES OPEN r WALL PROTECTOR INSTALLED N CORNER For SI: I inch = 25.4 Tom. MOUNTED WITH TDP AND BOTTOM EDGES OPEN WALL PROTECTOR MOUNTED ON SINGLE FLAT WALL MUST BE MOUNTED WITH TOP AND BOTTOM EDGES OPEN P � MASONRY WALL TIE 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 2012 INTERNATIONAL FUEL GAS CODE® 27 Cop-,ght @ 2011 ICC ALL RIGHTS RESERVED Accessed by (), (-) O,de, Number' #100760189 ov Sep 30, 2019 02 03 PM (PDT) pins t to U...v e Ag.eem-t-th ICC No fu,threprod.,Lov, vo fu,the, reproducLovsbya.ythadpa,ty,o,d�stc�buLova.thoc�zed Smgle—o.Iy,copT.ga dvetwockmg proh�lAted ANY UNAUTHORIZED REPRODUCTION OR DISTRIBUTION ISA VIOLATION OF THE FEDERAL COPYRIGHT ACT AND THE LICENSE AGREEMENT, AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER GENERAL REGULATIONS 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 appliances that are connected to the equipment grounding conductor of the circuit supplying that appliance. 310.1.1 CSST. Corrugated stainless steel tubing (CSST) gas pipingsystems shall be bonded to the electrical service grounding electrode system. The bonding jumper shall connect to a metallic pipe or fitting between the point of deliveryand the first downstream CSST fitting. The bond- ing jumper shall be not smaller than 6 AWG copper wire or equivalent. Gas piping systems that contain one or more segments of CSST shall be bonded in accordance with this section. 28 2012 INTERNATIONAL FUEL GAS CODE" IFEI I C,gbt@ ON I ICC ALL RIGHTS RESERVED Awsed by ().(-)O[d6Nombsx 100760189 oc Sep SO,2019 oa. Os PM (PDT) p—Pot to l»eAg—mt,oUICC No FYUP ep,od U:oa oAYUP, Rk MT, I ( �ep�odUt.. byzoyUb,dparty.oPAembmoo Uoosd Single—mly mpymg PodoehxodmgFokb,Ad ANY VNAVTHORIVED REPRODUCTION REDISTRIBUTION IS A VIOLATION OF THE ,ED REAL COPYRIGHT 11 AND THE LICENSE AGREEMENT, AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER CHAPTER GAS PIPING INSTALLATIONS 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 pipingof 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 min). 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 - letside 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. All 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. 401.10 Third -party testing and certification. All piping, tubing and fittings shall comply with the applicable refer- enced standards, specifications and performance criteria of this code and shall be identified in accordance with Section 401.9. Piping, tubing and fittings shall either be tested by an I approved third -party testing agency or certified by an approved third party certification agency. 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, in cubic feet per hour, shall be calculated using the manufacturer's input ratings of the appliances served adjusted for altitude. Where an input rating is not indi- cated, the gas supplier, appliance manufacturer or a qualified agency shall be contacted, or the rating from Table 402.2 shall be used for estimating the volumetric flow rate of gas to be supplied. 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. 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. 2. The sizing tables included in a listed piping system's manufacturer's installation instructions. 3. Other approved engineering methods. 402.4 Sizing tables and equations. 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 determined in accordance with Sec- tion 402.4.1, 402.4.2 or 402.4.3. 1. Low-pressure gas equation [Less than 11/2 pounds per square inch (psi) (10.3 kPa)]: 0 381 D — 19.17( A H� 0 206 (Equation 4-1) Cr x 2012 INTERNATIONAL FUEL GAS CODE" 29 I II I C,gbtOO?.o„ ICC ALL RIGHTS RESERVED A-P—dby().(-)O,d,,Nmmbsxlow6ole9 oc SIP V,2o19 oa.ws PM(PDT)p—Pot to IL eAg—mt,oUICC No FYUPep,oddtoaoAYUP, (,,Fod,Yo¢tbymytl,dputy,o,ANb,to,au o,sd Single —ooly, mpymg Pod-Pyo,k,Fokbad ANY VNAVTHORIVED REPRODUCTION REDISTRIBUTION IS A VIOLATION OF THE FEDERAL COPYRIGHT ACT AND THE LICENSE AGREEMENT, AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER GAS PIPING INSTALLATIONS 2. High-pressure gas equation [P/z psi (10.3 kPa) and above]: M QO 381 [(P2 Pal 10206 18.93 1C,x L (Equation 4-2) where: D = Inside diameter of pipe, inches (mm). Q = Input rate appliance(s), cubic feet per hour at 60°F (16°C) and 30-inch mercury column. P1 = Upstream pressure, psia (P, + 14.7). P2 = Downstream pressure, psia (Pz + 14.7). 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, Y Natural gas 0.6094 0.9992 Undiluted propane 1.2462 0.9910 For SI 1 cubic foot= 0 028 No', 1 foot= 305 Part, 1-inch 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 pipingshall be determined using the longest length of piping from the point of delivery to the TABLE 402.2 APPROXIMATE GAS INPUT FOR TYPICAL APPLIANCES INPUT BTUIH APPLIANCE (Approx.) Space Heating Units Hydronic boiler Single family 100,000 Multifamily, per unit 60,000 Warm -air furnace Single family 100,000 Multifamily, per unit 60,000 Space and Water Heating Units Hydronic boiler Single family 120,000 Multifamily, per unit 75,000 Water Heating Appliances Water heater, automatic instantaneous Capacity at 2 gal./minute 142,800 Capacity at 4 gal./minute 285,000 Capacity at 6 gal./minute 428,400 Water heater, automatic storage, 30- to 40-gal. tank 35,000 Water heater, automatic storage, 50-gal. tank 50,000 Water heater, domestic, circulating or side -arm 35,000 Cooking Appliances Built-in oven or broiler unit, domestic 25,000 Built-in top unit, domestic 40,000 Range, free-standing, domestic 65,000 Other Appliances Barbecue 40,000 Clothes dryer, Type 1 (domestic) 35,000 Gas fireplace, direct -vent 40,000 Gas light 2,500 Gas log 80,000 Refrigerator 3,000 For SI 1 British thermal unit per hour= 0 293 W, 1 gallon= 3 785 L, 1 gallon per minute — 3 785 L/m 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 Allowable pressure drop. The design pressure loss in any piping system under maximum probable flow conditions, from the point of deliveryto the inlet connection of the appli- ance, shall be such that the supply pressure at the appliance is greater than or equal to the minimum pressure required by the appliance. 30 2012 INTERNATIONAL FUEL GAS CODE" Co,gbt@ ON I ICC ALL RIGHTS RESERVED A-P—d by ().(-)O[d6 Nmmbsx/00760/89 oc SIP SO, 201902 Os To (PDT) p—Pot to l»eAge mt,oUICC No FYUP ep,odw.noa oAYUP, S I ( olUto—by mythdparty. o, ANb�to, P,,UoFPd Smglo mly, 0pymg PodoNyo,k, ploIRbUd ANY VNAVTHORIVED REPRODUCTION OR DISTRIBUTED N IS A VIOLATION OF THE TRY REAL COPYRIGHT 11 AND THE LICENSE AGREEMENT, AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER GAS PIPING INSTALLATIONS TABLE 402.4(1) SCHEDULE 40 METALLIC PIPE Gas Natural Inlet Pressure Less than 2 psi Pressure Drop 03in we Specific Gravity 0 60 PIPE SIZE (inch) Nominal 112 '/4 1 1114 1112 2 2112 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 (f0 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 1,700 NA 17 32 66 98 189 302 533 1,090 1,970 3, 190 6, 550 11,900 18,800 1,800 NA 16 31 64 95 184 295 517 1,050 1,910 3,090 6,350 11,500 18,300 1,900 NA 16 30 62 93 178 284 502 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 Pont, 1 foot= 304 8 Pont, 1 pound per square inch= 6 895 kPa, Finch 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 road Notes 1 NA means a flow of less than 10 cfh 2 All table entries have been rounded to three significant digits 2012 INTERNATIONAL FUEL GAS CODE" 31 I " ' C,gbtOO?.ot I ICC ALL RIGHTS RESERVED Awsedby().(-)O,d6 Nombsx 100760189 oc Sep so.2.o19 oa.Os PM(PDT)p-Pottal»eAg-mt,oUICC No FYUP,,eploddtoo.00 AYUP, (,eFod,Yo¢ebymytl,dputy,o,ANb,to,au o,sd Single -oolym,ymg andortuodmgFokbad ANY VNAVTHORIVED REPRODUCTION ORDISIRIBVTION 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 Inlet Pressure Less than 2 psi Pressure Drop 05in we Specific Gravity 0 60 PIPE SIZE (inch) Nominal 11, '14 1 1114 1'IS 2 211, 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 (f0 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 1 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 1 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 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 Pont, 1 foot= 304 8 Pont, 1 pound per square inch = 6 895 kPa, Finch 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 0 174 5 raid Notes 1 NA means a flow of less than 10 cfh 2 All table entries have been rounded to three significant digits 32 2012 INTERNATIONAL FUEL GAS CODE" " ' C,gbt@ON I ICC ALL RIGHTS RESERVED Awsedby().(-)O[d6Nombsx 100760189 oc Sep SO,2019 oa.Os PM(PDT)p-Potty l»eAg-mt,oUICC No FYUP ep,odw.no-oAYUP, S I17I' �ep�odA,.. byzoyUb,dparty.oPAembmo-Uoosd Single-mly mpymg Pod-PyodmgFokb,Ad ANY VNAVTHORIVED REPRODUCTION ORDISIRIBVTION IS A VIOLATION OF THE FEDERAL COPYRIGHT 11 AND THE LICENSE AGREEMENT. AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER GAS PIPING INSTALLATIONS Gas Natural TABLE 402.4(3) Inlet Pressure Less than 2 psi SCHEDULE 40 METALLIC PIPE Pressure Drop 3 0 in w c Specific Gravity 0 60 INTENDED USE: Initial supply pressure of 8.0 inches w.c. or greater PIPE SIZE (inch) Nominal 112 '14 1 1114 1112 2 2112 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 10 454 949 1,787 3,669 5,497 10,588 16,875 29,832 43,678 20 312 652 1,228 2,522 3,778 7,277 11,598 20,503 30,020 30 250 524 986 2,025 3,034 5,844 9,314 16,465 24,107 40 214 448 844 1,733 2,597 5,001 7,971 14,092 20,632 50 190 397 748 1,536 2,302 4,433 7,065 12,489 18,286 60 172 360 678 1,392 2,085 4,016 6,401 11,316 16,569 70 158 331 624 1,280 1,919 3,695 5,889 10,411 15,243 80 147 308 580 1,191 1,785 3,437 5,479 9,685 14,181 90 138 289 544 1,118 1,675 3,225 5,140 9,087 13,305 100 131 273 514 1,056 1,582 3,046 4,856 8,584 12,568 125 116 242 456 936 1,402 2,700 4,303 7,608 11,139 150 105 219 413 848 1,270 2,446 3,899 6,893 10,092 175 96 202 380 780 1,169 2,251 3,587 6,342 9,285 200 90 188 353 726 1,087 2,094 3,337 5,900 8,638 250 80 166 313 643 964 1,856 2,958 5,229 7,656 300 72 151 284 583 873 1,681 2,680 4,738 6,937 350 66 139 261 536 803 1,547 2,456 4,359 6,382 400 62 129 243 499 747 1,439 2,294 4,055 5,937 450 58 121 228 468 701 1,350 2,152 3,804 5,570 500 55 114 215 442 662 1,275 2,033 3,594 5,262 550 52 109 204 420 629 1,211 1,931 3,413 4,997 600 50 104 195 400 600 1,156 1,842 3,256 4,767 650 47 99 187 384 575 1,107 1,764 3,118 4,565 700 46 95 179 368 552 1,063 1,695 2,996 4,386 750 44 92 173 355 532 1,024 1,632 2,886 4,225 800 42 89 167 343 514 989 1,576 2,787 4,080 850 41 86 162 332 497 957 1,526 2,697 3,949 900 40 83 157 322 482 928 1,479 2,615 3,828 950 39 81 152 312 468 901 1,436 2,539 3,718 1,000 38 79 148 304 455 877 1,397 2,470 3,616 1,100 36 75 141 289 432 833 1,327 2,346 3,435 1,200 34 71 134 275 412 794 1,266 2,238 3,277 1,300 33 68 128 264 395 761 1,212 2,143 3,138 1,400 31 65 123 253 379 731 1,165 2,059 3,014 1,500 30 63 119 244 366 704 1,122 1,983 2,904 1,600 29 61 115 236 353 680 1,083 1,915 2,804 1,700 28 59 111 228 342 658 1,048 1,854 2,714 1,800 27 57 108 221 331 638 1,017 1,797 2,631 1,900 27 56 105 215 322 619 987 1,745 2,555 2,000 26 54 102 209 313 602 960 1,698 2,485 For SI 1 inch = 25 4 mm, 1 foot= 304 8 mm, 1 pound per square inch= 6 895 kPa, Finch 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 road 2012 INTERNATIONAL FUEL GAS CODE® 33 I " ' Co,gbtOO?.ot I ICC ALL RIGHTS RESERVED Awsedby().(-)O,d6 Nombsx 100760189 oc Sep so.2.o19 02.Os PM(PDT)p-Pottal»eAg-mt,oUICC No FYUP,,eploddtoo.00 AYUP, (,eFod,Yo¢ebymytl,dputy,o,ANb,to,au o,sd Single -oolym,ymg PodortuodmgFokbad ANY VNAVTHORIVED REPRODUCTION REDISTRIBUTION IS A VIOLATION OF THE FEDERAL COPYRIGHT ACT AND THE LICENSE AGREEMENT, AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER GAS PIPING INSTALLATIONS Gas Natural TABLE 402.4(4) Inlet Pressure Less than 2 psi SCHEDULE 40 METALLIC PIPE Pressure Drop 6 0 in w c Specific Gravity 0 60 INTENDED USE: Initial supply pressure of 11.0 inches w.c. or greater PIPE SIZE (inch) Nominal 112 '/Q 1 P/a 1112 2 2112 3 4 Actual ID 0.622 0.824 1.049 1.380 1.610 2.067 2.469 3.068 4.026 Length (f0 Capacity in Cubic Feet of Gas Per Hour 10 660 1,380 2,600 5,338 7,999 15,405 24,553 43,405 63,551 20 454 949 1,787 3,669 5,497 10,588 16,875 29,832 43,678 30 364 762 1,435 2,946 4,415 8,502 13,551 23,956 35,075 40 312 652 1,228 2,522 3,778 7,277 11,598 20,503 30,020 50 276 578 1,089 2,235 3,349 6,449 10,279 18,172 26,606 60 250 524 986 2,025 3,034 5,844 9,314 16,465 24,107 70 230 482 907 1,863 2,791 5,376 8,568 15,147 22,178 80 214 448 844 1,733 2,597 5,001 7,971 14,092 20,632 90 201 420 792 1,626 2,437 4,693 7,479 13,222 19,359 100 190 397 748 1,536 2,302 4,433 7,065 12,489 18,286 125 168 352 663 1,361 2,040 3,928 6,261 11,069 16,207 150 153 319 601 1,234 1,848 3,559 5,673 10,029 14,684 175 140 293 553 1,135 1,700 3,275 5,219 9,227 13,509 200 131 273 514 1,056 1,582 3,046 4,856 8,584 12,568 250 116 242 456 936 1,402 2,700 4,303 7,608 11,139 300 105 219 413 848 1,270 2,446 3,899 6,893 10,093 350 96 202 380 780 1,169 2,251 3,587 6,342 9,285 400 90 188 353 726 1,087 2,094 3,337 5,900 8,638 450 84 176 332 681 1,020 1,965 3,131 5,535 8,105 500 80 166 313 643 964 1,856 2,958 5,229 7,656 550 76 158 297 fill 915 1,762 2,809 4,966 7,271 600 72 151 284 583 873 1,681 2,680 4,738 6,937 650 69 144 272 558 836 1,610 2,566 4,537 6,643 700 66 139 261 536 803 1,547 2,465 4,359 6,382 750 64 134 252 516 774 1,490 2,375 4,199 6,148 800 62 129 243 499 747 1,439 2,294 4,055 5,937 850 60 125 235 483 723 1,393 2,220 3,924 5,745 900 58 121 228 468 701 1,350 2,152 3,804 5,570 950 56 118 221 454 681 1,311 2,090 3,695 5,410 1,000 55 114 215 442 662 1,275 2,033 3,594 5,262 1,100 52 109 204 420 629 1,211 1,931 3,413 4,997 1,200 50 104 195 400 600 1,156 1,842 3,256 4,767 1,300 47 99 187 384 575 1,107 1,764 3,118 4,565 1,400 46 95 179 368 552 1,063 1,695 2,996 4,386 1,500 44 92 173 355 532 1,024 1,632 2,886 4,225 1,600 42 89 167 343 514 989 1,576 2,787 4,080 1,700 41 86 162 332 497 957 1,526 2,697 3,949 1,800 40 83 157 322 482 928 1,479 21615 3,828 1,900 39 81 152 312 468 901 1,436 2,539 3,718 2,000 38 79 148 304 455 877 1,397 2,470 3,616 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 perhour- 0 0283 m'lh, 1 degree- 0 01745 rad 34 2012 INTERNATIONAL FUEL GAS CODE® " ' Co,gbt@ON I ICC ALL RIGHTS RESERVED Awsedby().(-)O,d6N-bsx 100760189 oc Sep SO,2019 oa.Os PM(PDT)p-Potty l»eAg-mt,oUICC No FYUP ep,odU:o-oAYUP, S I (eFodmYo,,bymytl,dputy,o,ANb�to,au o,sd Smglo mlym,ymg and-PyodmgFokbad ANY VNAVTHORIVED REPRODUCTION REDISTRIBUTION IS A VIOLATION OF THE ,EDBRAL COPYRIGHT 11 AND THE LICENSE AGREEMENT, AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER GAS PIPING INSTALLATIONS Gas Natural TABLE 402.4(5) Inlet Pressure 20 psi SCHEDULE 40 METALLIC PIPE Pressure Drop 10psi Specific Gravity 0 60 PIPE SIZE (inch) Nominal 11, '14 1 1114 1'/z 2 21/z 3 4 Actual ID 0.622 0.824 1.049 1.380 1.610 2.067 2.469 3.068 1 4.026 Length (f0 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 1,800 96 200 358 736 1,100 2, 120 3,390 5,980 12,200 1,900 93 195 348 715 1,070 2,060 3,290 5,810 11,900 2,000 91 189 1 339 695 1,040 2,010 1 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 kPa, Finch 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 Part Note: All table entries have been rounded to three significant digits 2012 INTERNATIONAL FUEL GAS CODE" 35 I " ' C,gbtOO?.ot I ICC ALL RIGHTS RESERVED Awsedby().(-)O,d6 Nombsx 100760189 oc Sep so.2.o19 oa.Os PM(PDT)p-Pottal»eAg-mt,oUICC No FYUP,,eploddtoo.00 AYUP, (,eFod,Yo¢ebymytl,dputy,o,ANb,to,au o,sd Single -oolym,ymg andortuodmgFokbrhd ANY VNAVTHORIVED REPRODUCTION ORDISIRIBVTION 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(6) SCHEDULE 40 METALLIC PIPE Gas Natural Inlet Pressure 30 psi Pressure Drop 2 0 psi Specific Gravity 0 60 PIPE SIZE (inch) Nominal 11, 'a 1 1114 111, 2 21/z 3 4 Actual ID 0.622 0.824 1.049 1.380 1 1.610 2.067 2.469 3.068 4.026 Length (f0 Capacity in Cubic Feet of Gas Per Hour 10 2,350 4,920 9,270 19,000 1 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 Pont, 1 foot- 3048 Pont, 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 perhour- 0 0283 m'/h, 1 degree- 0 01745 rad Note: All table entries have been rounded to three significant digits 36 2012 INTERNATIONAL FUEL GAS CODE" " ' C,gbt@ON I ICC ALL RIGHTS RESERVED Awsedby().(-)O[d6N-bsx 100760189 oc Sep SO,2019 oa.Os PM(PDT)p-Potty l»eAg-mt,oUICC No FYUP ep,odw.no-oAYUP, r I ( �ep�odA,o.. byzoy Ub,d,PLP,o[dlembmo-Uoosd Single-mly mpymg Pod-PyodmgFokb,Ad ANY VNAVTHORIVED REPRODUCTION ORDISIRIBVTION IS A VIOLATION OF THE FED ERAL COPYRIGHT 11 AND THE LICENSE AGREEMENT. AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER GAS PIPING INSTALLATIONS TABLE 402.4(7) SCHEDULE 40 METALLIC PIPE Gas Natural Inlet Pressure 5 0 psi Pressure Drop 3 5 psi Specific Gravity 0 60 PIPE SIZE (inch) Nominal 1/2 '/a 1 11/4 11/z 2 21/z 3 4 Actual ID 0.622 0.824 1 1.049 1.380 1.610 1 2.067 2.469 3.068 1 4.026 Length (ft) Capacity in Cubic Feet of Gas Per Hour 10 3,190 1 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 11 Q000 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 Pont, 1 foot= 304 8 Pont, 1 pound per square inch= 6 895 kPa, Finch 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 road Note: All table entries have been rounded to three significant digits 2012 INTERNATIONAL FUEL GAS CODE" 37 I " ' C,gbtOO?.ot I ICC ALL RIGHTS RESERVED Awsedby().(-)O,d6 Nombsx 100760189 oc Sep so.2.o19 oa.Os PM(PDT)p-Pottal»eAg-mt,oUICC No FYUP,,eploddtoo.00 AYUP, (,eFod,Yo¢ebymytl,dputy,o,ANb,to,au o,sd Single -oolym,ymg andortuodmgFokbad ANY VNAVTHORIVED REPRODUCTION ORDISIRIBVTION 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 03in we Specific Gravity 0 60 TUBE SIZE (inch) Nominal K & L I/, '/S I/y % 3/1 1 lI/q lI/y 2 ACR '/a I/T '/a '/g '/a 11/a 1'/a Outside 0 375 0 500 0 625 0 750 0 875 1 125 1 375 1 625 2 125 Inside 0305 0402 0527 0652 0745 0995 1245 1481 1959 Length (M 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 1,600 NA NA NA NA 13 29 52 82 1,700 NA NA NA NA 13 28 50 79 1,800 NA NA NA NA 13 27 49 77 gl 1,900 NA NA NA NA 12 26 47 74 2,000 NA NA NA NA 12 25 46 72 For SI 1 inch = 25 4 Pont, 1 foot= 304 8 Pont, 1 pound per square inch = 6 895 kPa, Finch 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 0 174 5 raid 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 cfh 3 All table entries have been rounded to three significant digits 38 2012 INTERNATIONAL FUEL GAS CODE" " ' C,gbt@ON I ICC ALL RIGHTS RESERVED Awsedby().(-)O[d6Nombsx 100760189 oc Sep SO,2019 oa.Os PM(PDT)p—Potty l»eAg—mt,oUICC No FYUP epoodw.no—oAYUP, S I ( �ep�odA,.. byzoyUb,dparty.oPAembmo—Uoosd Single—mly mpymg Pod-PyodmgFokb,Ad ANY VNAVTHORIVED REPRODUCTION ORDISIRIBVTION IS A VIOLATION OF THE FED ERAL COPYRIGHT 11 AND THE LICENSE AGREEMENT. AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER GAS PIPING INSTALLATIONS Gas Natural TABLE 402.4(9) Inlet Pressure Less than 2 psi SEMIRIGID COPPER TUBING Pressure Drop 05in we Specific Gravity 0 60 TUBE SIZE (inch) Nominal I(& L I/q '/a I/z '/a '/q 1 11/q 11' 2 ACR '/a I/T '/a '/g '/a1'/a Outside 0 375 0 500 0 625 0 750 0 875 1 125 1 375 1 625 2125 Inside 0 305 0 402 0 527 0 652 0 745 0 995 1 245 1 481 1959 Length (fd 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 66 104 217 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 Pont, 1 foot= 304 8 Pont, 1 pound per square inch= 6 895 kPa, Finch 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 NA means a flow of less than 10 cfh 3 All table entries have been rounded to three significant digits 2012 INTERNATIONAL FUEL GAS CODE" 39 I " ' C,gbtOO?.ot I ICC ALL RIGHTS RESERVED Awsedby().(-)O[d6Nombsx 1007601e9 oc Sep so.2.o19 oa.Os PM(PDT)p—Potty IL eAg—mt,oUICC No FYUP epooddto—oAYUP, (,eFodmYo¢ebymytl,dputy,o,ANb,to,au o,sd Smglo poly, mpymg PodortuodmgFokbad ANY VNAVTHORIVED REPRODUCTION ORDISIRIBVTION 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 Inlet Pressure Less than 2 psi Pressure Drop 1 0 in w c Specific Gravity 0 60 INTENDED USE: SIZING BETWEEN HOUSE LINE REGULATOR AND THE APPLIANCE TUBE SIZE (inch) Nominal K % L I/4 '4 I/2 5/8 1 1I/ lI/y 2 ACR 3/8 I/2 1/8 3/4 I/S lI/S 1'/S Outside 0375 0500 0625 0750 0875 1125 1375 1625 2125 Inside 0305 0402 0527 0652 0745 0995 1245 1481 1959 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 Pont, 1 foot= 304 8 Pont, 1 pound per square inch = 6 895 kPa, Finch 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 road 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 cfh 3 All table entries have been rounded to three significant digits 40 2012 INTERNATIONAL FUEL GAS CODE" " ' C,gbt@ON I ICC ALL RIGHTS RESERVED Awsedby().(-)O[d6N-bsx 1007601e9 oc Sep SO,2019 oa.Os PM(PDT)p-Potty l»eAg-mt,oUICC No FYUP epoodw.no-oAYUP, r I ( �ep�odA,.. byzoyUb,dparty.oPAembmo-Uoosd Single-mly mpymg Pod-PyodmgFokb,Ad ANY VNAVTHORIVED REPRODUCTION ORDISIRIBVTION IS A VIOLATION OF THE FEDRRAL COPYRIGHT 11 AND THE LICENSE AGREEMENT. AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER GAS PIPING INSTALLATIONS Gas Natural TABLE 402.4(11) Inlet Pressure Less than 2 psi SEMIRIGID COPPER TUBING Pressure Drop 170 in we Specific Gravity 0 60 TUBE SIZE (inch) Nominal I(& L I/, '/a I/' '/a '/q 1 11/q 11/z 2 ACR '/a I/T '/a '/g '/a 11/a 1'/a Outside 0375 0500 0625 0750 0875 1125 1375 1625 2125 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 86 123 262 472 744 1,550 1,800 11 24 48 84 119 254 457 721 1,500 1,900 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 Pont, 1 foot= 304 8 Pont, 1 pound per square inch= 6 895 kPa, Finch 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 Part 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 All table entries have been rounded to three significant digits 2012 INTERNATIONAL FUEL GAS CODE" 41 I " ' C,gbtOO?.ot I ICC ALL RIGHTS RESERVED Awsedby().(-)O[d6N-bsx 1007601e9 oc Sep so.2.o19 oa.Os PM(PDT)p-Potty IL eAg-mt,oUICC No FYUP epooddto-oAYUP, (,eFodmYo¢ebymytl,dputy,o,ANb,to,au o,sd Single ®Iy, mpymg PodortuodmgFokbad ANY VNAVTHORIVED REPRODUCTION ORDISIRIBVTION IS A VIOLATION OF THE FEDERAL COPYRIGHT ACT AND THE LICENSE AGREEMENT. AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER GAS PIPING INSTALLATIONS Gas I Natural TABLE 402.4(12) Inlet Pressure 2 0 psi SEMIRIGID COPPER TUBING Pressure Drop 10psi Specific Gravity 0 60 TUBE SIZE (inch) K & L I/, '/q I/y T/q '/1 1 11/q 11/y 2 Nominal ACR '/a I/T T/a '/g 7/8 11/a 1'/S 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 1959 Length (f0 Capacity in Cubic Feet of Gas Per Hour 10 245 506 1,030 1,800 2,550 5,450 9,820 15,500 32,200 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 10,500 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 Pont, 1 foot= 304 8 Pont, 1 pound per square inch = 6 895 kPa, Finch 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 road 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 All table entries have been rounded to three significant digits 42 2012 INTERNATIONAL FUEL GAS CODE" " ' C,gbt@ON I ICC ALL RIGHTS RESERVED Awsedby().(-)O[d6N-bsx 100760189 oc Sep SO,2019 oa.Os PM(PDT)p-Potty l»eAg-mt,oUICC No FYUP epoodw.no-oAYUP, S I I �ep�odA,.. byzoyUb,dparty.oPAembmo-Uoosd Single-mly mpymg Pod-PyodmgFokb,Ad ANY VNAVTHORIVED REPRODUCTION ORDISIRIBVTION IS A VIOLATION OF THE FED ERAL COPYRIGHT 11 AND THE LICENSE AGREEMENT. AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER GAS PIPING INSTALLATIONS Gas Natural TABLE 402.4(13) Inlet Pressure 2 0 psi SEMIRIGID COPPER TUBING Pressure Drop 15psi Specific Gravity 0 60 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 I(& L I/q a 11/4 z 2 ACR '/a bT T/a '/g '/a 11/a 1'/a Outside 0375 0500 0625 0750 0875 1125 1375 1625 2125 Inside 0305 0402 0527 0652 0745 0995 1245 1481 1959 Length (ft) 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 27700 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 1 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 79 138 196 419 753 1,190 2,470 1,800 18 38 77 134 190 406 731 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 Pont, 1 foot= 304 8 Pont, 1 pound per square inch= 6 895 kPa, Finch 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 road 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 aline 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 All table entries have been rounded to three significant digits 2012 INTERNATIONAL FUEL GAS CODE" 43 I " ' C,gbtOO?.ot I ICC ALL RIGHTS RESERVED Awsedby().(-)O[d6N-bsx 1007601e9 oc Sep so.2.o19 oa.Os PM(PDT)p-Potty IL eAg-mt,oUICC No FYUP epooddto-oAYUP, (,eFod,Yo¢ebymytl,dputy,o,ANb,to,au o,sd Smglo poly, mpymg PodortuodmgFokbad ANY VNAVTHORIVED REPRODUCTION ORDISIRIBVTION IS A VIOLATION OF THE FEDERAL COPYRIGHT ACT AND THE LICENSE AGREEMENT. AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER GAS PIPING INSTALLATIONS Gas I Natural TABLE 402.4(14) Inlet Pressure 5 0 psi SEMIRIGID COPPER TUBING Pressure Drop 35psi Specific Gravity 0 60 TUBE SIZE (inch) Nominal K & L I/q T/q '/q 1 11/q 11/y 2 ACR % bT T/a '/P '/ 11/a 1'/a Outside 0375 0500 0625 0750 0875 1125 1375 1625 2125 Inside 0305 0402 0527 0652 0745 0995 1245 1481 1959 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 65 133 233 330 705 1,270 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 ,200 it 1,890 3,930 2,000 29 60 122 213 302 646 1,160 1,830 3,820 For SI 1 inch = 25 4 Pont, 1 foot= 304 8 Pont, 1 pound per square inch = 6 895 kPa, Finch 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 road 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 All table entries have been rounded to three significant digits 44 2012 INTERNATIONAL FUEL GAS CODE" " ' C,gbt@ON I ICC ALL RIGHTS RESERVED Awsedby().(-)O[d6N-bsx 100760189 oc Sep SO,2019 oa.Os PM(PDT)p-Potty l»eAg-mt,oUICC No FYUP epoodw.no-oAYUP, S I I �ep�odA,.. byzoyUb,dparty.oPAembmo-Uoosd Single-mly mpymg Pod-PyodmgFokb,Ad ANY VNAVTHORIVED REPRODUCTION ORDISIRIBVTION IS A VIOLATION OF THE FEDERAL COPYRIGHT 11 AND THE LICENSE AGREEMENT. AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER GAS PIPING INSTALLATIONS TABLE 402.4(15) CORRUGATED STAINLESS STEEL TUBING (CSST) Gas Natural Inlet Pressure Less than 2 psi Pressure Drop 0 5 in w c Specific Gravity 0 60 TUBE SIZE (EHD) Flow Designation 13 15 18 19 23 25 30 31 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 74 121 141 248 295 471 563 1,000 1,110 80 10 15 29 33 60 69 113 132 232 277 440 527 940 1,040 90 10 14 28 32 57 65 107 125 219 262 415 498 887 983 100 9 13 26 30 54 62 101 118 208 249 393 472 843 933 150 7 10 20 23 42 48 78 91 171 205 320 387 691 762 200 6 9 18 21 38 44 71 82 148 179 277 336 600 661 250 5 8 16 19 34 39 63 74 133 161 247 301 538 591 300 5 7 15 17 32 36 57 67 95 148 226 275 492 540 For SI 1 inch = 25 4 Pont, 1 foot= 304 8 Pont, 1 pound per square inch= 6 895 kPa, Finch 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 Part Notes: 1 Table includes losses for four 90-degree bends and two end fittings Tubing rums with larger numbers of bends and/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 and/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 All table entries have been rounded to three significant digits 2012 INTERNATIONAL FUEL GAS CODE" 45 I " ' C,gbtOO?.ot I ICC ALL RIGHTS RESERVED Awsedby().(-)O[d6N—bsx 1007601e9 oc Sep so.2.o19 oa.Os PM(PDT)p—Potty IL eAg—mt,oUICC No FYUP epooddto—oAYUP, (,eFodmYo¢ebymytl,dputy,o,ANb,to,au o,sd Smglo poly, mpymg PodortuodmgFokbad ANY VNAVTHORIVED REPRODUCTION ORDISIRIBVTION 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(16) CORRUGATED STAINLESS STEEL TUBING(CSST) Gas Natural Inlet Pressure Less than 2 psi Pressure Drop 30in we Specific Gravity 0 60 INTENDED USE: Initial supply pressure of 8.0 inches w.c. or greater TUBE SIZE (EHD) Flow Designation 13 15 18 19 23 25 1 30 31 37 46 48 60 62 Length (f0 Capacity in Cubic Feet of Gas Per Hour 5 120 160 277 327 529 649 1,180 1,370 2,140 4,430 5,010 8,800 10,100 10 83 112 197 231 380 462 828 958 1,530 3,200 3,560 6,270 7,160 15 67 90 161 189 313 379 673 778 1,250 2,540 2,910 5,140 5,850 20 57 78 140 164 273 329 580 672 1,090 2,200 2,530 4,460 5,070 25 51 69 125 147 245 295 518 599 978 1,960 2,270 4,000 4,540 30 46 63 115 134 225 270 471 546 895 1,790 2,070 3,660 4,140 40 39 54 100 116 196 234 407 471 778 1,550 1,800 3,180 3,590 50 35 48 89 104 176 210 363 421 698 1,380 1,610 2,850 3,210 60 32 44 82 95 161 192 330 383 639 1,260 1,470 2,600 2,930 70 29 41 76 88 150 178 306 355 593 1,170 1,360 2,420 2,720 80 27 38 71 82 141 167 285 331 555 1,090 1,280 2,260 2,540 90 26 36 67 77 133 157 268 311 524 1,030 1,200 2,140 2,400 100 24 34 63 73 126 149 254 295 498 974 1,140 2,030 2,280 150 19 27 52 60 104 122 206 240 409 793 936 1,660 1,860 200 17 23 45 52 91 106 178 207 355 686 812 1,440 1,610 250 15 21 40 46 82 95 159 184 319 613 728 1,290 1,440 300 13 19 37 42 75 87 144 168 234 559 665 1,180 1,320 For SI 1 inch = 25 4 Pont, 1 foot= 304 8 Pont, 1 pound per square inch = 6 895 kPa, Finch 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 raid Notes: 1 Table includes losses for four 90-degree bends and two end fittings Tubing inns with larger numbers of bends and/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 and/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 All table entries have been rounded to three significant digits 46 2012 INTERNATIONAL FUEL GAS CODE" " ' C,gbt@ON I ICC ALL RIGHTS RESERVED Awsedby().(-)O[d6Nombsx 100760189 oc Sep SO,2019 oa.Os PM(PDT)p-Potty l»eAg-mt,oUICC No FYUP epoodw.no-oAYUP, S I ( �ep�odA,.. byzoyUb,dparty.oPAembmo-Uoosd Single-mly mpymg Pod-PyodmgFokb,Ad ANY VNAVTHORIVED REPRODUCTION ORDISIRIBVTION IS A VIOLATION OF THE FED ERAL COPYRIGHT 11 AND THE LICENSE AGREEMENT. AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER GAS PIPING INSTALLATIONS TABLE 402.4(17) CORRUGATED STAINLESS STEEL TUBING(CSST) Gas Natural Inlet Pressure Less than 2 psi Pressure Drop 60in we Specific Gravity 0 60 INTENDED USE: Initial supply pressure of 11.0 inches w.c. or greater TUBE SIZE (EHD) Flow Designation 13 15 18 19 23 25 30 31 37 46 48 60 62 Length (ft) Capacity in Cubic Feet of Gas Per Hour 5 173 229 389 461 737 911 1,690 1,950 3,000 6,280 7,050 12,400 14,260 10 120 160 277 327 529 649 1,180 1,370 2,140 4,430 5,010 8,800 10,100 15 96 130 227 267 436 532 960 1,110 1,760 3,610 4,100 7,210 8,260 20 83 112 197 231 380 462 828 958 1,530 3,120 3,560 6,270 7,160 25 74 99 176 207 342 414 739 855 1,370 2,790 3,190 5,620 6,400 30 67 90 161 189 313 379 673 778 1,250 2,540 2,910 5,140 5,850 40 57 78 140 164 273 329 580 672 1,090 2,200 2,530 4,460 5,070 50 51 69 125 147 245 295 518 599 978 1,960 2,270 4,000 4,540 60 46 63 115 134 225 270 471 546 895 1,790 2,070 3,660 4,140 70 42 58 106 124 209 250 435 505 830 1,660 1,920 3,390 3,840 80 39 54 100 116 196 234 407 471 778 1,550 1,800 3,180 3,590 90 37 51 94 109 185 221 383 444 735 1,460 1,700 3,000 3,390 100 35 48 89 104 176 210 363 421 698 1,380 1,610 2,850 3,210 150 28 39 73 85 145 172 294 342 573 1,130 1,320 2,340 2,630 200 24 34 63 73 126 149 254 295 498 974 1,140 2,030 2,280 250 21 30 57 66 114 134 226 263 447 870 1,020 1,820 2,040 300 19 27 52 60 104 122 206 240 409 793 936 1,660 1,860 For SI 1 inch = 25 4 Pont, 1 foot= 304 8 Pont, 1 pound per square inch= 6 895 kPa, Finch 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 road Notes: 1 Table includes losses for four 90-degree bends and two end fittings Tubing rums with larger numbers of bends and/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 and/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 All table entries have been rounded to three significant digits 2012 INTERNATIONAL FUEL GAS CODE" 47 I " ' C,gbtOO?.ot I ICC ALL RIGHTS RESERVED Awsedby().(-)O[d6Nombsx 1007601e9 oc Sep so.2.o19 oa.Os PM(PDT)p-Potty IL eAg-mt,oUICC No FYUP epooddto-oAYUP, (,eFodmYo¢ebymytl,dputy,o,ANb,to,au o,sd Smglo poly, mpymg PodortuodmgFokbad ANY VNAVTHORIVED REPRODUCTION ORDISIRIBVTION 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) Gas Natural Inlet Pressure 2 psi Pressure Drop 10psi Specific Gravity 0 60 TUBE SIZE (EHD) Flow Designation 13 15 18 19 23 25 30 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 Pont, 1 foot= 304 8 Pont, 1 pound per square inch = 6 895 kPa, Finch 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 raid Notes: 1 Table does not include effect of pressure drop across the line regulator Where regulator loss exceeds'/g 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 inns with larger numbers of bends and/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 and/or bends 4 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 5 All table entries have been rounded to three significant digits 48 2012 INTERNATIONAL FUEL GAS CODE" " ' C,gbt@ON I ICC ALL RIGHTS RESERVED Awsedby().(-)O[d6N-bsx 1007601e9 oc Sep SO,2019 oa.Os PM(PDT)p-Potty l»eAg-mt,oUICC No FYUP epoodw.no-oAYUP, S I ( �ep�odA,.. byzoyUb,dparty.oPAembmo-Uoosd Single-mly mpymg Pod-PyodmgFokb,Ad ANY VNAVTHORIVED REPRODUCTION ORDISIRIBVTION IS A VIOLATION OF THE ,ED REAL COPYRIGHT 11 AND THE LICENSE AGREEMENT. AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER GAS PIPING INSTALLATIONS TABLE 402.4(19) CORRUGATED STAINLESS STEEL TUBING (CSST) Gas Natural Inlet Pressure 5 0 psi Pressure Drop 3 5 psi Specific Gravity 0 60 TUBE SIZE (EHD) Flow Designation 13 15 18 19 23 25 1 30 1 31 1 37 1 39 46 48 60 62 Length (f0 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 8,140 300 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 Pont, 1 foot= 304 8 Pont, 1 pound per square inch= 6 895 kPa, Finch 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 road Notes: 1 Table does not include effect of pressure drop across the line regulator Where regulator loss exceeds'/g 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 rums with larger numbers of bends and/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 and/or bends 4 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 5 All table entries have been rounded to three significant digits 2012 INTERNATIONAL FUEL GAS CODE" 49 I " ' C,gbtOO?.ot I ICC ALL RIGHTS RESERVED Awsedby().(-)O[d6N-bsx 1007601e9 oc Sep so.2.o19 oa.Os PM(PDT)p-Potty IL eAg-mt,oUICC No FYUP epooddto-oAYUP, (,eFodmYo¢ebymytl,dputy,o,ANb,to,au o,sd Smglo poly, mpymg PodortuodmgFokbad ANY VNAVTHORIVED REPRODUCTION ORDISIRIBVTION 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(20) POLYETHYLENE PLASTIC PIPE Gas Natural Inlet Pressure Less than 2 psi Pressure Drop 03in we Specific Gravity 0 60 PIPE SIZE (inch) Nominal OD l/g 1/1 1 11/4 11/2 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 70 122 184 330 914 1,770 500 18 37 66 115 174 312 863 1,670 For SI 1 inch = 25 4 Pont, 1 foot= 304 8 Pont, 1 pound per square inch = 6 895 kPa, Finch 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 raid Note: All table entries have been rounded to three significant digits 50 2012 INTERNATIONAL FUEL GAS CODE" " ' C,gbt@ON I ICC ALL RIGHTS RESERVED Awsedby().(-)O[d6Nombsx 100760189 oc Sep SO,2019 oa.Os PM(PDT)p-Potty l»eAg-mt,oUICC No FYUP ep,odw.no-oAYUP, S I ( �ep�odA,.. byzoyUb,dparty.oPAembmo-Uoosd Single-mly mpymg Pod-PyodmgFokb,Ad ANY VNAVTHORIVED REPRODUCTION ORDISIRIBVTION IS A VIOLATION OF THE FEDRRAL COPYRIGHT 11 AND THE LICENSE AGREEMENT. AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER GAS PIPING INSTALLATIONS TABLE 402.4(21) POLYETHYLENE PLASTIC PIPE Gas Natural Inlet Pressure Less than 2 psi Pressure Drop 05in we Specific Gravity 0 60 PIPE SIZE (inch) Nominal OD l/g 1/1 1 11/1 11/2 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 99 171 258 464 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 Pont, 1 foot= 304 8 Pont, 1 pound per square inch= 6 895 kPa, Finch 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 road Note: All table entries have been rounded to three significant digits 2012 INTERNATIONAL FUEL GAS CODE" 51 I " ' C,gbtOO?.ot I ICC ALL RIGHTS RESERVED Awsedby().(-)O,d6 Nombsx 100760189 oc Sep so.2.o19 oa.Os PM(PDT)p-Pottal»eAg-mt,oUICC No FYUP,,eploddtoo.00 AYUP, (,eFod,Yo¢ebymytl,dputy,o,ANb,to,au o,sd Single -oolym,ymg andortuodmgFokbad ANY VNAVTHORIVED REPRODUCTION ORDISIRIBVTION 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(22) POLYETHYLENE PLASTIC PIPE Gas Natural Inlet Pressure 20 psi Pressure Drop 10psi Specific Gravity 0 60 PIPE SIZE (inch) Nominal OD 4E 1 lI/g 111E 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 1943 2 864 3 682 Length (f0 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 Pont, 1 foot= 304 8 Pont, 1 pound per square inch = 6 895 kPa, Finch 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 raid Note: All table entries have been rounded to three significant digits 52 2012 INTERNATIONAL FUEL GAS CODE" " ' C,gbt@ON I ICC ALL RIGHTS RESERVED Awsedby().(-)O[d6N-bsx 100760189 oc Sep SO,2019 oa.Os PM(PDT)p-Potty l»eAg-mt,oUICC No FYUP ep,odw.no-oAYUP, S I ( �ep�odA,.. byzoyUb,dparty.oPAembmo-Uoosd Single-mly mpymg Pod-PyodmgFokb,Ad ANY VNAVTHORIVED REPRODUCTION ORDISIRIBVTION IS A VIOLATION OF THE FEDRRAL COPYRIGHT 11 AND THE LICENSE AGREEMENT. AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER GAS PIPING INSTALLATIONS TABLE 402.4(23) POLYETHYLENE PLASTIC TUBING Gas Natural Inlet Pressure Less than 2 0 psi Pressure Drop 10 3 in w c Specific Gravity 10 60 PLASTIC TUBING SIZE (CTS) (inch) Nominal DID I/2 % 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 For SI 1 inch- 25 4 mm, 1 foot= 304 8 mm, 1 pound per square inch = 6 895 kPa, Finch water column = 0 2488 kPa, 1 British thermal unit per hour= 0 2931 W, 1 cubic foot per hour= 0 0283 RNA, 1 degree= 0 01745 rod Notes: 1 NA means a flow of less than 10 cfh 2 All table entries have been rounded to three significant digits TABLE 402.4(24) POLYETHYLENE PLASTIC TUBING Gas Natural Inlet Pressure Less than 2 0 psi Pressure Drop 0 5 in w c Specific Gravity 0 60 PLASTIC TUBING SIZE (CTS) (inch) Nominal DID I/2 '14 Designation SDR 7 SDR 11 Actual ID 0 445 0 927 Length (f0 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 Pont, 1 foot= 304 8 Pont, 1 pound per square inch = 6 895 kPa, Finch water column = 0 2488 kPa, 1 British thermal unit per hour= 0 2931 W, 1 cubic foot per hour= 0 0283 m3/h, 1 degree= 0 01745 Part Notes: 1 NA means a flow of less than 10 cfh 2 All table entries have been rounded to three significant digits 2012 INTERNATIONAL FUEL GAS CODE" 53 I " ' C,gbtOO?.ot I ICC ALL RIGHTS RESERVED Awsedby().(-)O,d6 Nombsx 1007601e9 oc Sep so.2.o19 oa.Os PM(PDT)p—Pottal»eAg—mt,oUICC No FYUP,,eploddtoo.00 AYUP, ( ,eFod, Yo¢ebymytl ,dputy,o,ANb,to,au o,sd Single— ooly, m,ymg andortuodmg Fo F,,Ad ANY VNAVTHORIVED REPRODUCTION ORDISIRIBVTION 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) SCHEDULE 40 METALLIC PIPE Gas Undiluted Propane Inlet Pressure 10 0 psi Pressure Drop 10psi Specific Gravity 1 50 INTENDED USE Pipe sizing between first stage (high-pressure regulator) and second stage (low-pressure regulator). PIPE SIZE (inch) Nominal 1/T 1/1 1 11/g 11/ 2 21/ 3 4 Actual ID 0622 0824 1049 1380 1610 2067 2469 3068 4026 Length (ft) Capacity in Thousands of Btu per Hour 10 3,320 6,950 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 3,280 6,180 12,700 19,000 36,600 58,400 103,000 211,000 50 1,390 2,910 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 2,260 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 1,770 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 8,560 16,500 26,300 46,500 94,700 200 657 1,370 2,590 5,320 7,960 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 3,900 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 2,290 3,430 6,600 10,500 18,600 37,900 1,000 275 575 1,080 2,230 3,330 6,420 10,200 18,100 36,900 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 1,930 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 1,700 206 432 813 1,670 2,500 4,820 7,680 13,600 27,700 1,800 200 419 789 1,620 2,430 4,670 7,450 13,200 26,900 1,900 194 407 766 1,570 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 mm, 1 pound per square inch = 6 895 kPa, Finch water column= 0 2488 kPa, 1 British thermal unit per hour= 0 2931 W, 1 cubic foot per hour= 0 0283 RNA, 1 degree= 0 01745 bad Note: All table entries have been rounded to three significant digits 54 2012 INTERNATIONAL FUEL GAS CODE" " ' C,gbt@ON I ICC ALL RIGHTS RESERVED Awsedby().(-)O[d6Nombsx 1007601e9 oc Sep SO,2019 oa.Os PM(PDT)p-Potty l»eAg-mt,oUICC No FYUP ep,odw.no-oAYUP, S I 1 �ep�odA,.. byzoyUb,dparty.oPAembmo-Uoosd Single-mly mpymg Pod-PyodmgFokb,Ad ANY VNAUTHORIVED REPRODUCTION ORDISIRIBUTION IS A VIOLATION OF THE FEDRRAL COPYRIGHT 11 AND THE LICENSE AGREEMENT. AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER GAS PIPING INSTALLATIONS TABLE 402.4(26) SCHEDULE 40 METALLIC PIPE Gas Undiluted Propane Inlet Pressure 10 0 psi Pressure Drop 3 0 psi Specific Gravity 1 50 INTENDED USE Pipe sizing between first stage (high-pressure regulator) and second stage (low-pressure regulator). PIPE SIZE (inch) Nominal 1/T '/g 1 11/g 11/ 2 21/ 3 4 Actual ID 0622 0824 1049 1380 1610 2067 2469 3068 4026 Length (M Capacity in Thousands of Btu per Hour 10 5,890 12,300 23,200 47,600 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 7,560 11,300 21,800 34,800 61,500 125,400 350 860 1,800 3,390 6,950 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 49,400 100,700 500 709 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 4,980 7,450 14,400 22,900 40,500 82,500 700 591 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 3,940 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 3,570 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 3,280 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 2,960 4,430 8,530 13,600 24,000 49,000 1,800 355 741 1,400 2,870 4,300 8,270 13,200 23,300 47,600 1,900 344 720 1,360 2,780 4,170 8,040 12,800 22,600 46,200 2,000 335 700 1,320 2,710 4,060 7,820 12,500 22,000 44,900 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 kloa, 1 Bntlsh thermal umt per hour = 0 2931 W, 1 cubm foot per hour = 0 0283 m'/h, 1 degree = 0 01745 and Note: All table entrees have been rounded to dvee slgmfican[ dlgrts 2012 INTERNATIONAL FUEL GAS CODE° 55 I " ' C,ghtOO?.ot I ICC ALL RIGHTS RESERVED Awsedby().(-)O,d6 Nombsx1oovco1es oc SIP so.2.o19 oa.Os PM(PDT)p-Pot to IL eAg-mt,oUICC No FYUP,,,Aoddtoaoo AYUP, (,eFod,Yo¢ebymytl,dputy,o,ANb,to,au o,sd Single -oolym,ymg PodortuodmgFokbad ANY VNAUTHORIVED REPRODUCTION ORDISIRIBUTION 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 I Undiluted Propane Inlet Pressure 2 0 psi Pressure Drop 1 0 psi Specific Gravity 1 50 INTENDED USE Pipe sizing between 2 psig service and line pressure regulator. PIPE SIZE (inch) Nominal bT 1 11/g 11/ 2 21/ 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 1,260 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 44,900 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 27,900 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 23,900 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 fill 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 15,900 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 0 166 348 655 1,340 2,010 3,880 6,180 10,900 22,300 0 161 337 635 1,300 1,950 3,760 6,000 10,600 21,600 0 12,000 157 327 617 1,270 1,900 3,650 5,820 10,300 21,000 152 318 600 1,230 1,840 3,550 5,660 10,000 20,400 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'lh, 1 degree = 0 01745 bad Note: All table entries have been rounded to three significant digits 56 2012 INTERNATIONAL FUEL GAS CODE" " ' Co,gbt@ON I ICC ALL RIGHTS RESERVED Awsedby().(-)O[d6N-bsx 1007601e9 oc Sep SO,2019 oa.Os PM(PDT)p-Potty l»eAg-mt,oUICC No FYUP ep,odw.no-oAYUP, S I 1eFodmYo,,bymytl,dputy,o,ANb�to,au o,sd Smglo mlym,ymg and-PyodmgFokbad ANY UNAUTHORIVED REPRODUCTION REDISTRIBUTION IS A VIOLATION OF THE PEDRRAL COPYRIGHT 11 AND THE LICENSE AGREEMENT, AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER GAS PIPING INSTALLATIONS TABLE 402.4(28) SCHEDULE 40 METALLIC PIPE Gas Undiluted Propane Inlet Pressure 11 0 in w c Pressure Drop 05in we Specific Gravity 1 50 INTENDED USE Pipe sizing between single- or second -stage (low pressure) regulator and appliance. PIPE SIZE (inch) Nominal I/, '/g 1 11/g 11/ 2 21/ 3 4 Actual ID 0622 0824 1049 1380 1610 2067 2469 3068 4626 Length (f0 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 1,470 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 kPa, Finch 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 road Note: All table entries have been rounded to three significant digits 2012 INTERNATIONAL FUEL GAS CODE" 57 I " ' C,gbtOO?.ot I ICC ALL RIGHTS RESERVED Awsedby().(-)O,d6 Nombsx 100760189 oc Sep so.2.o19 oa.Os PM(PDT)p-Pottal»eAg-mt,oUICC No FYUP,,eploddtoo.00 AYUP, (,eFod,Yo¢ebymytl,dputy,o,ANb,to,au o,sd Single -oolym,ymg PodortuodmgFokbad ANY VNAUTHORIVED REPRODUCTION REDISTRIBUTION 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(29) SEMIRIGID COPPER TUBING Gas Undiluted Propane Inlet Pressure 10 0 psi Pressure Drop 10psi Specific Gravity 1 50 INTENDED USE Sizing between first stage (high-pressure regulator) and second stage (low-pressure regulator). TUBE SIZE (in.) Nominal I( & L I/q '/S I/ 5/S I 1 lI/q lI/y 2 ACR 'a I/y T/! '/g a lI/a 1'/a Outside 0 375 0 500 0 625 0 750 0 875 1 125 1 375 1 625 2125 Inside 0 305 0 402 0 527 0 652 0 745 0 995 1 245 1 481 1959 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 3,280 5,900 9,310 19,400 125 131 270 549 959 1,360 2,910 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 2,250 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 1,370 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 1,270 2,010 4,190 1,800 31 64 130 227 321 1,240 1,950 4,060 1,900 30 62 126 220 312 E667 1,200 1,890 3,940 2,000 29 60 122 214 304 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, Finch 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 raid 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 All table entries have been rounded to three significant digits 58 2012 INTERNATIONAL FUEL GAS CODE" " ' C,gbt@ON I ICC ALL RIGHTS RESERVED Awsedby().(-)O[d6Nombsx 100760189 oc Sep SO,2019 oa.Os PM(PDT)p-Potty l»eAg-mt,oUICC No FYUP epoodw.no-oAYUP, r I I �ep�odA,.. byzoyUb,dparty.oPAembmo-Uoosd Single-mly mpymg Pod-PyodmgFokb,Ad ANY VNAUTHORIVED REPRODUCTION ORDISIRIBUTION IS A VIOLATION OF THE FEDRRAL COPYRIGHT 11 AND THE LICENSE AGREEMENT. AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER GAS PIPING INSTALLATIONS TABLE 402.4(30) SEMIRIGID COPPER TUBING Gas Undiluted Propane Inlet Pressure 11 0 in w c Pressure Drop 05in we Specific Gravity 1 50 INTENDED USE Sizing between single or second stage (low-pressure regulator) and appliance. TUBE SIZE (inch) Nominal K & L 1 11/q 11/z 2 ACR 'a I/T T/q '/g '/a 11/8 1'/a Outside 0 375 0 500 0 625 0 750 0 875 1 125 1 375 1 625 2125 Inside 0 305 0 402 0 527 0 652 0 745 0 995 124 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 3,250 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 87 157 248 517 950 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 1,900 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 kPa, Finch 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 road 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 10,000 Btu/hr 3 All table entries have been rounded to three significant digits 2012 INTERNATIONAL FUEL GAS CODE" 59 I " ' C,gbtOO?.ot I ICC ALL RIGHTS RESERVED Awsedby().(-)O[d6 Nombsx 1007601e9 oc Sep so.2.o19 oa.Os PM(PDT)p-Potty IL eAg-mt,oUICC No FYUP epooddto-oAYUP, (,eFodmYo¢ebymytl,dputy,o,ANb,to,au o,sd Smglo poly, mpymg PodortuodmgFokbad ANY VNAUTHORIVED REPRODUCTION REDISTRIBUTION 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 Pressure 20 psi Pressure Drop 10psi Specific Gravity 1 50 INTENDED USE Tube sizing between 2 psig service and line pressure regulator. TUBE SIZE (inch) Nominal K & L I/q 1/a I/1 'a 1/1 1 11/18 11/1 2 ACR 1/1 I/y '/1 1/g '/1 lI/1 11/1 Outside 0 375 0 500 0 625 0 750 0 875 1 125 1 375 1 625 2 125 Inside 0305 0402 0527 0652 0745 0995 1245 1481 1959 Length (f0 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 2,950 6,310 11,400 17,900 37,300 30 228 470 956 1,670 2,370 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 2,980 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 53 108 188 267 570 1,030 1,620 3,370 1,800 25 51 104 182 259 553 1,000 1,570 3,270 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, Finch 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 raid 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 All table entries have been rounded to three significant digits 60 2012 INTERNATIONAL FUEL GAS CODE" " ' C,gbt@ON I ICC ALL RIGHTS RESERVED Awsedby().(-)O[d6Nombsx 100760189 oc Sep SO,201 oa.Os PM(PDT)p-Potty l»eAg-mt,oUICC No FYUP epoodw.no-oAYUP, S I ( �ep�odA,.. byzoyUb,dparty.oPAembmo-Uoosd Single-mly mpymg Pod-PyodmgFokb,Ad ANY VNAUTHORIVED REPRODUCTION ORDISIRIBUTION IS A VIOLATION OF THE FEDRRAL COPYRIGHT 11 AND THE LICENSE AGREEMENT. AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER 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 5 in w c Specific Gravity 1 50 INTENDED USE: SIZING BETWEEN SINGLE OR SECOND STAGE (Low Pressure) REGULATOR AND THE APPLIANCE SHUTOFF VALVE TUBE SIZE (EHD) Flow Designation 13 15 18 19 23 25 1 30 1 31 1 37 1 39 46 48 60 62 Length (fd 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 j 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 kPa, Finch 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 road Notes: 1 Table includes losses for four 90-degree bends and two end fittings Tubing rums with larger numbers of bends and/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 and/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 All table entries have been rounded to three significant digits 2012 INTERNATIONAL FUEL GAS CODE" 61 I " ' C,gbtOO?.ot I ICC ALL RIGHTS RESERVED Awsedby().(-)O[d6 Nombsx 1007601e9 oc Sep so.2.o19 oa.Os PM(PDT)p-Potty IL eAg-mt,oUICC No FYUP epooddto-oAYUP, (,eFodmYo¢ebymytl,dputy,o,ANb,to,au o,sd Smglo poly, mpymg PodortuodmgFokbad ANY VNAUTHORIVED REPRODUCTION REDISTRIBUTION 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) Gas Undiluted Propane Inlet Pressure 20 psi Pressure Drop 1 0 psi Specific Gravity 1 50 INTENDED USE: SIZING BETWEEN 2 PSI SERVICE AND THE LINE PRESSURE REGULATOR TUBE SIZE (EHD) Flow Designation 13 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, Finch water column= 0 2488 kPa, 1 British thermal unit per hour= 0 293 1 W, 1 cubic foot per hour= 0 0283 RNA, 1 degree= 0 01745 bad Notes: 1 Table does not include effect of pressure drop across the line regulator Where regulator loss exceeds I/y 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 inns with larger numbers of bends and/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 and/or bends 4 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 5 All table entries have been rounded to three significant digits 62 2012 INTERNATIONAL FUEL GAS CODE" " ' C,gbt@ON I ICC ALL RIGHTS RESERVED Awsedby().(-)O[d6Nombsx 1007601e9 oc Sep SO,2019 oa.Os PM(PDT)p-Potty l»eAg-mt,oUICC No FYUP epoodw.no-oAYUP, S I ( �ep�odA,.. byzoyUb,dparty.oPAembmo-Uoosd Single-mly mpymg Pod-PyodmgFokb,Ad ANY VNAUTHORIVED REPRODUCTION ORDISIRIBUTION IS A VIOLATION OF THE ,ED REAL COPYRIGHT 11 AND THE LICENSE AGREEMENT. AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER GAS PIPING INSTALLATIONS TABLE 402.4(34) CORRUGATED STAINLESS STEEL TUBING (CSST) Gas Undiluted Propane Inlet Pressure 5 0 psi Pressure Drop 3 5 psi Specific Gravity 1 50 TUBE SIZE (EHD) Flow Designation 13 15 18 19 23 25 1 30 1 31 1 37 1 39 46 48 60 1 62 Length (fd 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 54400 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 kPa, Finch 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 road Notes: 1 Table does not include effect of pressure drop across line regulator Where regulator loss exceedsl 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 Consult with the tubing manufacturer for guidance 3 Table includes losses for four 90-degree bends and two end fittings Tubing rums with larger numbers of bends and/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 and/or bends 4 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 5 All table entries have been rounded to three significant digits 2012 INTERNATIONAL FUEL GAS CODE" 63 I " ' C,gbtOO?.ot I ICC ALL RIGHTS RESERVED Awsedby().(-)O[d6N-bsx 1007601e9 oc Sep so.2.o19 oa.Os PM(PDT)p-Potty IL eAg-mt,oUICC No FYUP epooddto-oAYUP, (,eFodmYo¢ebymytl,dputy,o,ANb,to,au o,sd Smglo poly, mpymg PodortuodmgFokbad ANY VNAUTHORIVED REPRODUCTION REDISTRIBUTION 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(35) POLYETHYLENE PLASTIC PIPE Gas Undiluted Propane Inlet Pressure 11 0 in w c Pressure Drop 05in we Specific Gravity 1 50 INTENDED USE PE pipe sizing between integral two -stage regulator at tank or second stage (low-pressure regulator) and building. PIPE SIZE (inch) Nominal DID 1/2 3/4 1 11/4 11/2 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 (f0 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 mm, 1 foot= 304 8 mm, 1 pound per square inch = 6 895 kPa, Finch 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 raid Note: All table entries have been rounded to three significant digits 64 2012 INTERNATIONAL FUEL GAS CODE" " ' C,gbt@ON I ICC ALL RIGHTS RESERVED Awsedby().(-)O[d6Nombsx 100760189 oc Sep SO,2019 oa.Os PM(PDT)p-Potty l»eAg-mt,oUICC No FYUP ep,odw.no-oAYUP, S I ( �ep�odA,.. byzoyUb,dparty.oPAembmo-Uoosd Single-mly mpymg Pod-PyodmgFokb,Ad ANY VNAUTHORIVED REPRODUCTION ORDISIRIBUTION IS A VIOLATION OF THE FEDERAL COPYRIGHT 11 AND THE LICENSE AGREEMENT. AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER GAS PIPING INSTALLATIONS TABLE 402.4(36) POLYETHYLENE PLASTIC PIPE Gas Undiluted Propane Inlet Pressure 2 0 psi Pressure Drop 10psi Specific Gravity 1 50 INTENDED USE PE pipe sizing betmen 2 psig service regulator and line pressure regulator. PIPE SIZE (inch) Nominal OD 112 '1, 1 lI/g 142 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 1943 2 864 3 682 Length (ft) 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 3,530 9,760 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 1,90000 183 366 661 1,140 1,730 3,110 8,590 16,600 2,0 178 356 643 1,110 1,680 3,020 8,360 16,200 For SI 1 inch = 25 4 mm, 1 foot = 304 8 mm, 1 pound per square inch= 6 895 kPa, Finch 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 road Note: All table entries have been rounded to three significant digits 2012 INTERNATIONAL FUEL GAS CODE" 65 I " ' C,gbtOO?.ot I ICC ALL RIGHTS RESERVED Awsedby().(-)O,d6 Nombsx 100760189 oc Sep so.2.o19 oa.Os PM(PDT)p-Pottal»eAg-mt,oUICC No FYUP,,eploddtoo.00 AYUP, (,eFod,Yo¢ebymytl,dputy,o,ANb,to,au o,sd Single -oolym,ymg PodortuodmgFokbad ANY VNAUTHORIVED REPRODUCTION REDISTRIBUTION 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(37) POLYETHYLENE PLASTIC TUBING Gas Undiluted Propane Inlet Pressure 11 0 in w c Pressure Drop 05 in we Specific Gravity 1 50 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 1 /2 1 Designation SDR 7 SDR 11 Actual ID 0.445 0.927 Length (ft) Capacity in Cubic Feet of Gas per Hour 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 mm, 1 foot= 304 8 mm, 1 pound per square inch = 6 895 kPa, Finch water column= 0 2488 kPa, 1 British thermal unit per hour= 0 293 1 W, 1 cubic foot per hour= 0 0283 m'/h, 1 degree= 0 0 1745 rod Note: All table entries have been rounded to three significant digits 66 2012 INTERNATIONAL FUEL GAS CODE" " ' C,gbt@ON I ICC ALL RIGHTS RESERVED Awsedby().(-)O[d6Nombsx 1007601e9 oc Sep SO,2019 oa.Os To(PDT)p—Potty l»eAg—mt,oUICC No FYUP ep,odw.no—oAYUP, S I ( �ep�odA,o.. byzoy Ub,d,PLP,o[dlembmo—Uoosd Single—mly So, Pod-PyodmgFokb,Ad ANY VNAUTHORIVED REPRODUCTION REDISTRIBUTION IS A VIOLATION OF THE FED BRAL COPYRIGHT 11 AND THE LICENSE AGREEMENT, AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER GAS PIPING INSTALLATIONS 402.6 Maximum design operating pressure. The maximum design operating 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 fol- lowing conditions are met: 1. The piping system is welded. 2. The piping is located in a ventilated chase or otherwise enclosed for protection against accidental gas accumu- lation. 3. The piping is located inside buildings or separate areas of buildings used exclusively for: 3.1. Industrial processing or heating; 3.2. Research; 3.3. Warehousing; or 3.4. Boiler or mechanical rooms. 4. The piping is a temporary installation for buildings under construction. 5. The piping serves appliances or equipment used for agricultural purposes. 6. The piping system is an LP -gas piping system with a design operating pressure greater than 20 psi (137.9 kPa) and complies with NFPA 58. 402.6.1 Liquefied petroleum gas systems. LP -gas sys- tems designed to operate below -5°F (-21°C) or with butane or a propane -butane mix shall be designed to either accommodate liquid LP -gas or prevent LP -gas vapor from condensing into a liquid. 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 and wrought -iron pipe shall be at least of standard weight (Schedule 40) and shall comply with one of the following standards: 1. ASME B36.10, 10M; 2. ASTM A 53/A53M; or 3. ASTM A 106. 403.4.3 Copper and brass. Copper and brass pipe shall not be used if the gas contains more than an average of 0.3 grains of hydrogen sulfide per 100 standard cubic feet of gas (0.7 milligrams per 100 liters). Threaded copper, brass and aluminum -alloy pipe shall not be used with gases cor- rosive to such materials. 403.4.4 Aluminum. Aluminum -alloy pipe shall comply with ASTM B 241 (except that the use of alloy 5456 is prohibited), and 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. Seamless copper, aluminum alloy and steel tubing shall not be used with gases corrosive to such materials. 403.5.1 Steel tubing. Steel tubing shall comply with ASTM A 254. 403.5.2 Copper and brass tubing. Copper tubing shall comply with Standard Type K or L of ASTM B 88 or ASTM B 280. Copper and brass tubing shall not be used if the gas contains more than an average of 0.3 grains of hydrogen sulfide per 100 standard cubic feet of gas (0.7 milligrams per 100 liters). 403.5.3 Aluminum tubing. Aluminum -alloy tubing shall comply with ASTM B 210 or ASTM B 241. Aluminum - alloy tubing shall be coated to protect against external cor- rosion where it is in contact with masonry, plaster or insu- 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. 403.5.4 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 the 2009 edition of ASTM D 2513. Such pipe shall be marked "Gas" and "ASTM D 2513." Plastic pipe, tubing and fittings, other than polyethylene, shall be identified and conform to the 2008 edition of ASTM D 2513. Such pipe shall be marked "Gas" and "ASTM D 2513." 403.6.1 Anodeless risers. Plastic pipe, tubing and anode - less 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. 2. 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 the 2009 edition of ASTM D 2513, and U.S. Department of Transporta- 2012 INTERNATIONAL FUEL GAS CODE" 67 I II I Copy,gbtOO?.o„ ICC ALL RIGHTS RESERVED A-P-dby().(-)O,d,,Nombsxlowcole9 oc SIP V,201902OsPM(PDT)p-Pot to IL eAgemt,oUICC No FYUPep,oddtoaoAYUP, (,,Fod,Yo¢tbymytl,dputy,o,ANb,to,au o,sd Single -oPIA opymg PodortuodmgFokbad ANY VNAVTHORIVED REPRODUCTION REDISTRIBUTION IS A VIOLATION OF THE FEDERAL COPYRIGHT ACT AND THE LICENSE AGREEMENT, AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER GAS PIPING INSTALLATIONS tion, Code of Federal Regulations, Title 49, Part 192.281(e). The manufacturer shall provide the user with qualified installation instructions as prescribed by the U.S. Department of Transportation, Code of Federal Regulations, 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 termina- tions shall be PVC conforming to ANSI/UL 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. 403.9 Metallic pipe threads. Metallic pipe and fitting threads shall be taper pipe threads and shall comply with ASME B1.20.1. 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 3/4 10 3/4 3/4 10 1 7/e 10 1l/q 1 11 1l/2 1 11 2 1 11 21/2 11/2 12 3 1l/2 12 4 15/e 13 For SI 1 inch= 25 4 mm 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. Pipe joints shall be threaded, flanged, brazed or welded. 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 con- tain more than 0.05-percent phosphorus. 403.10.2 Tubing joints. Tubing joints shall be made with approved gas tubing fittings, brazed with a material hav- ing a melting point in excess of 1,000°F (538°C) or made with press -connect fittings complying with ANSI LC-4. Brazing alloys shall not contain more than 0.05-percent phosphorus. 403.10.3 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. 403.10.4 Metallic fittings. Metallic fittings shall comply with the following: 1. Threaded fittings in sizes larger than 4 inches (102 mm) shall not be used except where approved. 2. Fittings used with steel or wrought -iron pipe shall be steel, brass, bronze, malleable iron or cast iron. 3. Fittings used with copper or brass pipe shall be cop- per, brass or bronze. 4. Fittings used with aluminum -alloy pipe shall be of aluminum alloy. 5. Cast-iron fittings: 5.1. Flanges shall be permitted. 5.2. Bushings shall not be used. 5.3. Fittings shall not be used in systems contain- ing flammable gas -air mixtures. 5.4. 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. Aluminum -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, proprie- tary -type joints, saddle tees, gland -type compression fittings, and flared, flareless or compression -type 68 2012 INTERNATIONAL FUEL GAS CODE" C,gbt@ ON I ICC ALL RIGHTS RESERVED A-P—d by ().(-)O,d,,Nombsx/00760/89 oc SIP SO, 2019 oa.Os PM(PDT)p—Pot to IL eAg—mt,oUICC No FYUP ep,odw.noa oAYUP, od Uto.. by POVO d party. o,±RYb�to, P,,Uoosd Single—mly mpymg Pod o Nyo,k,Fokb,Ad ANY VNAVTHORIVED REPRODUCTION OR DISTRIBUTED N IS A VIOLATION OF THE FOR REAL COPYRIGHT 11 AND THE LICENSE AGREEMENT, AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER GAS PIPING INSTALLATIONS tubing fittings shall be: used within the fitting manu- facturer's pressure -temperature recommendations; used within the service conditions anticipated with respect to vibration, fatigue, thermal expansion or contraction; installed or braced to prevent separation of the joint by gas pressure or external physical damage; and shall be approved 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 at least equal to the tensile strength of the plastic piping mate- rial. 2. Heat -fusion joints shall be made in accordance with qualified procedures that have been established and proven by test to produce gas -tight joints at least as strong as 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 D 2513." 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 at least to the outside end of the compression fit- ting 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. All flanges shall comply with ASME B16.1, ASME B16.20 or MSS SP-6. The pressure -temperature rat- ings shall equal or exceed that required by the application. 403.12.1 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. 403.12.2 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, and aluminum "0" rings and spiral wound metal gaskets. When a flanged joint is opened, the gasket shall be replaced. Full -face gaskets shall be used with all bronze and cast-iron flanges. SECTION 404 (IFGC) PIPING SYSTEM INSTALLATION 404.1 Installation of materials. All 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 mini- 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. Pipinginstalled downstream of the point ofdeliveryshall 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 Piping in concealed locations. Portions of a piping system installed in concealed locations shall not have unions, tubing fittings, right and left couplings, bushings, compres- sion couplings and swingjoints made by combinations of fit- ngs. Exceptions: 1. Tubing joined by brazing. 2. Fittings listed for use in concealed locations. 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. In concealed locations, where pipingother than black or galvanized steel is installed through holes or notches in wood studs, joists, raf- ters or similar members less than P/z inches (38 mm) from the nearest edge of the member, the pipe shall be protected by shield plates. Protective steel shield plates having a minimum thickness of 0.0575 inch (1.463 mm) (No. 16 gage) 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. 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. 2012 INTERNATIONAL FUEL GAS CODE" 69 I II I Copy,gbtOO?.o„ ICC ALL RIGHTS RESERVED A-P—dby().(-)O,d,,Nombsxlowcole9 oc SIP V,201902OsPM(PDT)p—Pot to IL eAgemt,oUICC No FYUPep,oddtoaoAYUP, (,,Fod,Yo¢tbymytl,dputy,o,ANb,to,au o,sd Single —oPIA opymg PodortuodmgFokbad ANY VNAVTHORIVED REPRODUCTION REDISTRIBUTION IS A VIOLATION OF THE FEDERAL COPYRIGHT ACT AND THE LICENSE AGREEMENT, AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER GAS PIPING INSTALLATIONS 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 terminates 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 prevent the entrance of water and insects. 404.8.2 Conduit with both ends terminating indoors. Where the conduit originates and terminates within the same building, the conduit shall originate and terminate 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. All piping installed outdoors shall be elevated not less than 3'/z inches (152 mm) above ground and where installed across roof surfaces, shall be elevated not less than 3'/z inches (152 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 also be protected against corrosion by coating or wrap- ping with an inert material. Where piping is encased in a pro- tective 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. Metallic pipe or tubing exposed to corrosive action, such as soil condition or mois- ture, shall be protected in an approved manner. Zinc coatings (galvanizing) shall not be deemed adequate protection for gas piping underground. Where dissimilar metals are joined underground, an insulating coupling or fitting shall be used. Piping shall not be laid in contact with cinders. 404.11.1 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. 404.11.2 Protective coatings and wrapping. Pipe protec- tive coatings and wrappings shall be approved for the application and shall be factory applied. Exception: Where installed in accordance with the manufacturer's installation instructions, field applica- tion of coatings and wrappings shall be permitted for pipe nipples, fittings and locations where the factory coating or wrapping has been damaged or necessarily removed at joints. 404.12 Minimum burial depth. Underground piping sys- tems shall be installed a minimum depth of 12 inches (305 mm) below grade, except as provided for in Section 404.12.1. 404.12.1 Individual outside appliances. Individual lines to outside lights, grills or other appliances shall be installed a minimum of 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 buildings is prohibited except where the piping is encased in a conduit of wrought iron, plastic pipe, steel pipe 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 Section 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 terminates 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 terminates within the same building, the conduit shall originate and terminate 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 installation 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 not be 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 70 2012 INTERNATIONAL FUEL GAS CODE" 17 S I C,gbt@ ON I ICC ALL RIGHTS RESERVED Awsed by ().(-)O,d,,Nombsx 100760189 oc Sep SO, 2019 oa. OsPM(PDT)p—Pot to l»eAg—mt,oUICC No FYUP ep,odw.noa oAYUP, ( �ep�odUt.. byzoyUb,dparty.oPAembmoo Uoosd Single—mly mpymg Pod-PyodmgFokb,Ad ANY VNAVTHORIVED REPRODUCTION REDISTRIBUTION IS A VIOLATION OF THE TRY REAL COPYRIGHT 11 AND THE LICENSE AGREEMENT, AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER GAS PIPING INSTALLATIONS 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 installation 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 terminate 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 installation instructions. 2. Plastic pipe shall be permitted to terminate 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 with ASTM D 2513 Category I or ASTM F 1973. 404.17.3 Tracer. A yellow insulated copper tracer wire or other approved conductor 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 not be less than 18 AWG and the insulation type shall be suitable for direct burial. 404.18 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. 404.19 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. All 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 arc of more than 90 degrees (1.6 rad). 5. The inside radius of a bend shall be not less than six times the outside diameter of the pipe. 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 not be 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 arc length measured along the crotch at least 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 determine 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. 2012 INTERNATIONAL FUEL GAS CODE" 71 I II I CopyngbtOO?.o„ ICC ALL RIGHTS RESERVED A-P—dby().(-)O,d,,Nmmbsxlow6ole9 oc SIP V,2o19 oa.ws PM(PDT)p—Pot to IL eAgemt,oUICC No FYUPep,oddtoaoAYUP, (,,Fod,Yo¢tbymytl,dputy,o,ANb,to,au o,sd Single —oPIA opymg PodortuodmgFokbad ANY VNAVTHORIVED REPRODUCTION REDISTRIBUTION IS A VIOLATION OF THE FEDERAL COPYRIGHT ACT AND THE LICENSE AGREEMENT, AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER GAS PIPING INSTALLATIONS 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. Under no circumstances shall a valve in a line be used as a bulkhead between gas in one section of the piping system and test medium in an adjacent section, unless two valves are installed in series with a valved "telltale" located between these valves. A valve shall not be subjected to the test pressure unless it can be determined that the valve, includ- ing 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 which they are to be installed shall be permitted to be tested with inert gas or air at the time of fabrication. I 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. 406.3 Test preparation. Pipe joints, including welds, shall be left exposed for examination during the test. Exception: Covered or concealed pipe end joints 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 is). 406.3.5 Testing precautions. All testing of piping sys- tems 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 no less than P/2 times 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 '/z 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. 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. Matches, candles, open flames or other methods that could provide a source of ignition shall not be used. 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 permitted 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 determine 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. Appliances 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. 72 2012 INTERNATIONAL FUEL GAS CODE" Co,gbt@ ON I ICC ALL RIGHTS RESERVED Awsed by ().(-)O,d,,Nmmbsx 100760189 oc Sep SO, 201902 ws PM(PDT)p—Pot to IL eAg—mt,oUICC No FYUP ep,odw.noa oAYUP, S I ( od,,to—by POVOt put, I,ANb�to,P,,UoFsd Smgle�ss¢®Iym,ymgandoNyo,k,Fokbad ANY VNAVTHORIVED REPRODUCTION OR DISTRIBUTED N IS A VIOLATION OF THE riRTRY REAL COPYRIGHT 11 AND THE LICENSE AGREEMENT, AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER GAS PIPING INSTALLATIONS 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 onches)a LENGTH OF PIPING (fee0 > 21/z < 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- taining 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 406.7.1.3. 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 at least 10 feet (3048 mm) from sources of ignition, at least 10 feet (3048 mm) from building openings and at least 25 feet (7620 min) 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 min) 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. 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 indicat- ing 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. 2012 INTERNATIONAL FUEL GAS CODE" 73 I II I C,gbtOO?.ot I ICC ALL RIGHTS RESERVED Awsedby().(-)O[d6 Nombsx 1007601e9 oc Sep so.2.o19 oa.Os PM(PDT)p—Pot to IL eAgemt,oUICC No FYUPep,oddtoaoAYUP, (,,Fod,Yo¢ebymytl,dputy,o,ANb,to,au o,sd Single —ooly, mpymg Pod-Pyo,k,FokbUd ANY VNAVTHORIVED REPRODUCTION REDISTRIBUTION IS A VIOLATION OF THE FEDERAL COPYRIGHT ACT AND THE LICENSE AGREEMENT, AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER GAS PIPING INSTALLATIONS E* 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 TEE expansion and contraction of the piping between anchors. All parts of the supporting equipment shall be designed and installed so they will not be disengaged by movement of the supported piping. SECTION 408 (IFGC) NIPPLE OF DRIPS AND SLOPED PIPING LENGTH 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 min) to prevent traps. CAP 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 also be provided at the outlet of the meter and shall be installed so as to constitute a trap wherein an accu- mulation of condensate will shut off the flow of gas before the condensate will run back into the meter. AS SUPPLY FIGURE 408.4 Method of Installing a tee fitting sediment trap 408.3 Location of drips. Drips shall be provided with ready SECTION 409 (IFGC) access to permit cleaning or emptying. A drip shall not be SHUTOFF VALVES located where the condensate is subject to freezing. 409.1 General. Pipingsystems shall be provided with shutoff 408.4 Sediment trap. Where a sediment trap is not incorpo- valves in accordance with this section. rated as part of the appliance, a sediment trap shall be 409.1.1 Valve approval. Shutoff valves shall be of an installed downstream of the appliance shutoff valve as close approved type; shall be constructed of materials compati- to the inlet of the appliance as practical. The sediment trap ble with the piping, and shall comply with the standard shall be either a tee fitting having a capped nipple of any that is applicable for the pressure and application, in length installed vertically in the bottommost opening of the accordance with Table 409.1.1. tee as illustrated in Figure 408.4 or other device approved as 409.1.2 Prohibited locations. Shutoff valves shall be gro- an effective sediment trap. Illuminating appliances, ranges, hibited in concealed locations and furnace plenums. clothes dryers, decorative vented appliances for installation in vented fireplaces, gas fireplaces, and outdoor grills need not 409.1.3 Access to shutoff valves. Shutoff valves shall be be so equipped. located in places so as to provide access for operation and shall be installed so as to be protected from damage. TABLE 409.1.1 MANUAL GAS VALVE STANDARDS VALVE STANDARDS APPLIANCE SHUTOFF VALVE APPLICATION UP TO 112 psig PRESSURE OTHER VALVE APPLICATIONS UP TO 112 psig PRESSURE UP TO 2 psig PRESSURE UP TO 5 psig PRESSURE UP TO 125 psig PRESSURE ANSI Z21.15 X ASME 1316.44 X X X' Xe — ASME 1316.33 X X X X X For SI 1 pound per square inch gauge= 6 895 kPa a If labeled 2G b If labeled 5G 74 2012 INTERNATIONAL FUEL GAS CODE" 17 S I C,gbt@ON I ICC ALL RIGHTS RESERVED Awsed by (). (-)For, Nombsx1oovco189 oc Sep SO, 2019 oa. OsPM(PDT) p—Pot to l»eAge mt,oUICC No FPUP ep,odUttoaoo APUP, ( �ep�olUto.. byzoyUbdparty.oPAembmoo UoFPd Single—mly So, Pod-PyodmgploGGAd ANY VNAVTGNSIVED REPRODUCTION ORDISIRIBUTION IS A VIOLATION OF THE ,EDERAL COPYRIGHT 11 AND THE LICENSE AGREEMENT, AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER GAS PIPING INSTALLATIONS 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. Appliance shut- off 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 serve no other appliance. The piping from the shutoff valve to within 6 feet (1829 mm) of the appliance shall be designed, sized and installed in accor- dance 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." 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. Access shall be provided to pressure regulators. Pressure reg- ulators shall be protected from physical damage. Regulators installed on the exterior of the building shall be approved for outdoor installation. 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 lockup (no -flow) conditions. 3. The capacity of the MP regulator, determined 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 410.3. 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. 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 2012 INTERNATIONAL FUEL GAS CODE" 75 I II I C,gbtOO?.o„ ICC ALL RIGHTS RESERVED A-P—dby().(-)O,d,,Nombsxlow6ole9 oc SIP V,201902OsPM(PDT)p—Pot to IL eAg—mt,oUICC No FYUPep,oddtoaoAYUP, (,,Fod,Yo¢tbymytl,dputy,o,ANb,to,au o,sd Single —ooly, mpymg Pod-Pyo,k,Fokbad ANY VNAVTHORIVED REPRODUCTION REDISTRIBUTION IS A VIOLATION OF THE FEDERAL COPYRIGHT ACT AND THE LICENSE AGREEMENT, AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER GAS PIPING INSTALLATIONS where sized in accordance with an approved design that minimizes back -pressure in the event of diaphragm rup- ture. 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 for the application and shall be sized and installed in accordance with the manufac- turer's instructions. 410.5 Flashback arrestor check valve. Where fuel gas is used with oxygen in any hot work operation, a listed protec- tive 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 pressure 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 opera- tion. 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 instruc- 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 and installed in accordance 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. 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 con- nector listed as complying with ANSI Z21.69 or in accor- dance with Item 1 or 3 of Section 411.1. 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 connec- tors shall be installed in accordance with the manufac- turer's instructions and Sections 411.1.3.1 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 409.5. 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 approved flexible connector designed and labeled for the application. Such flexible connectors shall be installed and protected against physical damage in accordance with the manufacturer's installation instructions. 411.1.5 OFGS) Connection of gas engine -powered air conditioners. Internal combustion engines shall not be rigidly connected to the gas supply piping. 76 2012 INTERNATIONAL FUEL GAS CODE" 17 S I C,gbt@ ON I ICC ALL RIGHTS RESERVED Awsed by ().(-)O,d,,Nmmbsx/00760/89 oc Sep SO, 201902 Os PM(PDT)p—Pot to l»eAg—mt,oUICC No FYUP ep,odw.noa oAYUP, ( �ep� odUt.. byanytlu,dparty.oPANb�toc UoFsd Single—mly So, and-PyodmgFokb,Ad ANY VNAVTHORIVED REPRODUCTION REDISTRIBUTION IS A VIOLATION OF THE PEDRRAL COPYRIGHT 11 AND THE LICENSE AGREEMENT, AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER GAS PIPING INSTALLATIONS 411.1.6 Unions. A union fitting shall be provided for appliances connected by rigid metallic pipe. Such unions 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 installation 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 6.10. The connector shall be installed as specified by the tube heater manufacturer's instructions. SECTION 412 (IFGC) LIQUEFIED PETROLEUM GAS MOTOR VEHICLE FUEL -DISPENSING FACILITIES [F] 412.1 General. Motor fuel -dispensing facilities for LP - gas fuel shall be in accordance with this section and the Inter- national Fire Code. The operation of LP -gas motor fuel -dis- pensing 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 412.4 [F] 412.3 Approved equipment Containers; pressure -relief devices, including pressure -relief valves; and pressure regula- tors and pipingused 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 412.8 by persons trained in the proper handling of LP -gas. [F] 412.6 Location. In addition to the fuel dispensing requirements of the International Fire Code, the point of transfer for dispensing operations shall be 25 feet (7620 mm) or more from buildings having combustible exterior wall sur- faces, buildings having noncombustible exterior wall surfaces that are not part of a 1-hour fire -resistance -rated assembly, buildings having combustible overhangs, lot lines of property that could be built on, public streets, sidewalks and railroads; and at least 10 feet (3048 mm) from driveways and buildings having noncombustible exterior wall surfaces that are part of a fire -resistance -rated assembly having a rating of 1 hour or more. Exception: The point of transfer for dispensing operations need not be separated from canopies providing weather protection for the dispensing equipment constructed in accordance with the International Building Code. 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 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] 412.7.1 Valves. A manual shutoff valve and an excess flow -control check valve shall be located in the liquid line between the pump and the dispenser inlet where the dis- pensing 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 emergency shutoff valve shall be installed in or on the dispenser at the point at which the dispenser hose is connected to the liquid piping. A differential backpressure valve shall be consid- ered equivalent protection. A listed shutoff valve shall be located at the discharge end of the transfer hose. [F] 412.7.2 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] 412.7.3 Vehicle impact protection. Vehicle impact protection for LP -gas storage containers, pumps and dis- pensers shall be provided in accordance with the Interna- tional Fire Code. [F] 412.8 Private fueling of motor vehicles. Self-service LP -gas dispensing systems, including key, code and card lock dispensing systems, shall not be open to the public and shall be limited to the filling of permanently mounted fuel contain- ers on LP -gas powered vehicles. In addition to the require- ments in the International Fire Code, self-service LP -gas dispensing systems shall be provided with an emergency shutoff switch located within 100 feet (30 480 mm) of, but not less than 20 feet (6096 mm) from, dispensers and the owner of the dispensing facility shall ensure the safe opera- tion of the system and the training of users. 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- tional Fire Code. The operation of CNG motor fuel -dispens- ing 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 2012 INTERNATIONAL FUEL GAS CODE® 77 I II I Co,gbtOO?.ot I ICC ALL RIGHTS RESERVED Awsedby().(-)O,d,,Nmmbsx1oovco189 oc SIP so.2.o19 oa.ws PM(PDT)p—Pot to IL eAg—mt,oUICC No FYUPep,oddtoaoAYUP, (,,Fod,Yo¢ebymytl,dputy,o,ANb,to,au o,sd Single —ooly, mpymg Pod-Pyo,k,Fokbad ANY VNAVTHORIVED REPRODUCTION REDISTRIBUTION IS A VIOLATION OF THE FEDERAL COPYRIGHT ACT AND THE LICENSE AGREEMENT, AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER GAS PIPING INSTALLATIONS 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 listed. The capacity of a residential fueling appliance shall not exceed 5 standard cubic feet per minute (0.14 standard cubic meter/min) of natural gas. [F] 413.3 Location of dispensing operations and equip- ment Compression, storage and dispensing equipment shall be located above ground outside. Exceptions: 1. Compression, storage or dispensing equipment is allowed in buildings of noncombustible construc- tion, as set forth in the International Building Code, which are unenclosed for three-quarters or more of the perimeter. 2. Compression, storage and dispensing equipment is allowed to be located indoors or in vaults in accor- dance with the International Fire Code. 3. Residential fueling appliances and equipment shall be allowed to be installed indoors in accordance with the equipment manufacturer's instructions and Section 413.4.3. [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 min) from the nearest build- ing 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 min) from the nearest rail of any railroad main track or any railroad or transit line where power for train propulsion is provided by an outside electrical source, such as third rail or overhead catenary. 5. Less than 50 feet (15 240 min) 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 Gas connections. Residential fueling appli- ances shall be connected to the premises' gas pipingsys- temwithout causing damage to the piping system or the connection to the internal appliance apparatus. [F] 413.4.2 Outdoor installation. Residential fueling appliances located outdoors shall be installed on a firm, noncombustible base. [F] 413.4.3 Indoor installation. Where located indoors, residential fueling appliances shall be vented to the out- doors. A gas detector set to operate at one -fifth of the lower limit of flammability of natural gas shall be installed in the room or space containing the appliance. The detec- tor shall be located within 6 inches (152 mm) of the high- est point in the room or space. The detector shall stop the operation of the appliance and activate an audible or a visual alarm. [F] 413.5 Private fueling of motor vehicles. Self-service CNG-dispensing 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 rain, sleet, snow, ice, mud or debris). This protection is allowed to be integral with the regulator. [F] 413.7 Valves. Pipingto equipmentshall 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 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 which explains the logical sequence for discharg- ing 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- 78 2012 INTERNATIONAL FUEL GAS CODE" S I C,gbt@ ON I ICC ALL RIGHTS RESERVED Awsed by ().(-)O,d,,Nmmbsx 100760189 oc Sep SO, 201902 Os PM(PDT)p—Pot to l»eAg—mt,oUICC No FYUP ep,odw.noa oAYUP, ( �ep� odUt.. byanytlu,dparty.oPANb�toc UoFsd Single—mly So, and-PyodmgFokb,Ad ANY VNAVTHORIVED REPRODUCTION REDISTRIBUTION IS A VIOLATION OF THE PEDRRAL COPYRIGHT 11 AND THE LICENSE AGREEMENT, AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER GAS PIPING INSTALLATIONS 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 the hori- zontal and lateral movement of the vessel. The system shall be designed to prevent the 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 non- combustible materials. [F] 413.9.2.3 Separation. The structure or appurte- nance used for stabilizing the cylinder shall be sepa- rated 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 lines 15 Public ways 15 Vehicles 25 CNG compressor and storage vessels 25 CNG dispensers 25 For SI 1 foot - 304 8 mm [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 cylin- der 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 a minimum of 10 feet (3048 mm) above grade level. The vent tube shall not be provided with a rain cap or other feature which 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 fund 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. Pipingshall 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, NOMINALSIZEOF NOMINAL SIZE SPACING OF TUBING SPACING OF OF PIPE SUPPORTS (SMOOTH -WALL) SUPPORTS (inches) (feeU (inch O.D.) (feeU 1/2 6 1/2 4 3/4or1 8 5/,or'/4 6 11/4 or larger 7/g or 1 (horizontal) 10 (horizontal) $ l l/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 mm SECTION 416 (IFGS) OVERPRESSURE PROTECTION DEVICES 416.1 General. Overpressure protection devices shall be pro- vided in accordance with this section to prevent the pressure in the piping system from exceeding the pressure that would cause unsafe operation of any connected and properly adjusted appliances. 2012 INTERNATIONAL FUEL GAS CODE" 79 I I I I C,gbtOO?.o„ ICC ALL RIGHTS RESERVED A-P—d by ().(-)O[d6 Nombsx 100760189 oc SIP V, 2019 02 Os To (PDT) p—Potto l»eAge mt,oUICC No FYUP L,od„dtoa oAYUP, ( ,,Fod,Yo¢tbymytl,dputy,o,ANb,No,au o,sd Stoglo—ooly mpymg Pod-Pyodmgp,okb,hd ANY VNAVTHORIVED REPRODUCTION REDISTRIBUTION IS A VIOLATION OF THE FEDERAL COPYRIGHT ACT AND THE LICENSE AGREEMENT, AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER GAS PIPING INSTALLATIONS 416.2 Protection methods. The requirements of this section shall be considered to be met and a piping system deemed to have overpressure protection where a service or line pressure regulator plus one other device are installed such that the fol- lowing occur: Each device limits the pressure to a value that does not exceed the maximum working pressure of the down- stream system. 2. The individual failure of either device does not result in the overpressurization of the downstream system. 416.3 Device maintenance. The pressure regulating, limiting and relieving devices shall be maintained; and inspection pro- cedures shall be devised or instrumentation installed to detect failures or malfunctions of such devices; and replacements or repairs shall be made. 416.4 Where required. A pressure -relieving or pressure -lim- iting device shall not be required where: (1) the gas does not contain materials that could seriously interfere with the oper- ation of the service or line pressure regulator; (2) the operat- ing pressure of the gas source is 60 psi (414 kPa) or less; and (3) the service or line pressure regulator has all of the follow- ing design features or characteristics: 1. Pipe connections to the service or line regulator do not exceed 2 inches (51 mm) nominal diameter. 2. The regulator is self-contained with no external static or control piping. 3. The regulator has a single port valve with an orifice diameter not greater than that recommended by the manufacturer for the maximum gas pressure at the reg- ulator inlet. 4. The valve seat is made of resilient material designed to withstand abrasion of the gas, impurities in the gas and cutting by the valve, and to resist permanent deforma- tion where it is pressed against the valve port. 5. The regulator is capable, under normal operating condi- tions, of regulating the downstream pressure within the necessary limits of accuracy and of limiting the dis- charge pressure under no -flow conditions to not more than 150 percent of the discharge pressure maintained under flow conditions. 416.5 Devices. Pressure -relieving or pressure -limiting devices shall be one of the following: 1. Spring -loaded relief device. 2. Pilot -loaded back pressure regulator used as a relief valve and designed so that failure of the pilot system or external control piping will cause the regulator relief valve to open. 3. A monitoring regulator installed in series with the ser- vice or line pressure regulator. 4. A series regulator installed upstream from the service or line regulator and set to continuously limit the pres- sure on the inlet of the service or line regulator to the maximum working pressure of the downstream piping system. 5. An automatic shutoff device installed in series with the service or line pressure regulator and set to shut off when the pressure on the downstream piping system reaches the maximum working pressure or some other predetermined pressure less than the maximum work- ing pressure. This device shall be designed so that it will remain closed until manually reset. 6. A liquid seal relief device that can be set to open accu- rately and consistently at the desired pressure. The devices shall be installed either as an integral part of the service or line pressure regulator or as separate units. Where separate pressure -relieving or pressure -limiting devices are installed, they shall comply with Sections 416.5.1 through 416.5.6. 416.5.1 Construction and installation. Pressure relieving and pressure -limiting devices shall be constructed of mate- rials so that the operation of the devices will not be impaired by corrosion of external parts by the atmosphere or of internal parts by the gas. Pressure -relieving and pres- sure -limiting devices shall be designed and installed so that they can be operated to determine whether the valve is free. The devices shall also be designed and installed so that they can be tested to determine the pressure at which they will operate and examined for leakage when in the closed position. 416.5.2 External control piping. External control piping shall be protected from falling objects, excavations and other causes of damage and shall be designed and installed so that damage to any control pipingwill not render both the regulator and the overpressure protective device inop- erative. 416.5.3 Setting. Each pressure -relieving or pressure -limit- ing device shall be set so that the pressure does not exceed a safe level beyond the maximum allowable working pres- sure for the connected piping and appliances. 416.5.4 Unauthorized operation. Where unauthorized operation of any shutoff valve can make a pressure reliev- ing valve or pressure limiting device inoperative, one of the following shall apply: 1. 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. 2. 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 safety device can be ren- dered inoperative at a time. 416.5.5 Vents. The discharge stacks, vents and outlet parts of all pressure -relieving and pressure -limiting devices shall be located so that gas is safely discharged to the out- doors. Discharge stacks and vents shall be designed to pre- vent the entry of water, insects and other foreign material 80 2012 INTERNATIONAL FUEL GAS CODE" C,gbt@ ON I ICC ALL RIGHTS RESERVED A-P—d by ().(-)O,d,,Nombsx/00760/89 oc SIP SO, 2019 oa.Os PM(PDT)p—Pot to l»eAg—mt,oUICC No FYUP ep,odw.noa oAYUP, MT, I ( �ep�odUt.. byzoyUb,dparty.oPAxmbmoo Uoosd Single—mly mpymg Pod-PyodmgFokb,Ad ANY VNAVTHORIVED REPRODUCTION REDISTRIBUTION IS A VIOLATION OF THE PEDERAL COPYRIGHT 11 AND THE LICENSE AGREEMENT, AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER GAS PIPING INSTALLATIONS that could cause blockage. The discharge stack or vent line shall be at least the same size as the outlet of the pressure - relieving device. 416.5.6 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. 2012 INTERNATIONAL FUEL GAS CODE" 81 I " ' Copy,ght @ zoI I ICC ALL RIGHTS RESERVED Awsed by ().(-)O,d,,Nombsx 100760189 oc Sep so.2.o19 oa. Os PM (PDT) p—Potto l»eAge mt,oUICC No FYUP ep,oddtoa oAYUP, (,,Fod,Yo¢ebymytl,dputy,o,ANb,to,au o,sd Single —oPIA opymg PodortuodmgFokbad ANY VNAVTHORIVED REPRODUCTION REDISTRIBUTION IS A VIOLATION OF THE FEDERAL COPYRIGHT ACT AND THE LICENSE AGREEMENT, AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER 82 2012 INTERNATIONAL FUEL GAS CODE" C,gbtOO ON I ICC ALL RIGHTS RESERVED Awsedby().(-)O[d6 Nombsx 100760189 oc Sep SO, 201902 Os PM (PDT) pwmmtto IL eAg—mt,oUICC No FYUP ep,odmno—oAYUP, S I ( odUt..lymyUb,dparty.oPAembmo—Uoosd Single—mly mpymg Pod-Pyodmgp,okb,Ad ANY VNAVTHORIVED REPRODUCTION REDISTRIBUTION IS A VIOLATION OF THE ,ED REAL COPYRIGHT 11 AND THE LICENSE AGREEMENT, AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER CHAPTER 5 CHIMNEYS AND VENTS SECTION 501 (IFGC) GENERAL 501.1 Scope. This chapter shall govern the installation, main- tenance, repair and approval of factory -built 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 -built 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- tional Building 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 air 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 listed and marked for optional venting. 3. Hot plates 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 dishwashing 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 unvented use. 9. Direct -fired makeup air heaters. 10. Other appliances listed for unvented use and not pro- vided with flue collars. 11. Specialized appliances of limited input such as labo- ratory burners and gas lights. Where the appliances listed in Items 5 through 11 above are installed so that the aggregate input rating exceeds 20 British thermal units (Btu) per hour per cubic feet (207 watts per m') of volume of the room or space in which such appli- ances are installed, one or more shall be provided with vent- ing systems or otherapproved means for conveying the vent gases to the outdoor atmosphere so that the aggregate input rating of the remaining unvented appliances does not exceed 20 Btu per hour per cubic foot (207 watts per m3). 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 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 2012 INTERNATIONAL FUEL GAS CODE" 83 I II I C,gbtOO?.ot I ICC ALL RIGHTS RESERVED Awsedby().(-)O,d,,Nmmbsx 100760189 oc Sep so.2.o19 oa.Os PM(PDT)p—Pot to IL eAg—mt,oUICC No FYUPep,oddtoaoAYUP, (,,Fod,Yo¢ebymytl,dputy,o,ANb,to,au o,sd Single —ooly, mpymg Pod-Pyo,k,Fokbad ANY VNAVTHORIVED REPRODUCTION REDISTRIBUTION IS A VIOLATION OF THE FEDERAL COPYRIGHT ACT AND THE LICENSE AGREEMENT, AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER CHIMNEYS AND VENTS 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 C 315 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 lim- ited 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 installation 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 fuel -burning appliance or fireplace. The flue liner, chimney inner wall or vent inner wall shall be continuous and shall be free of cracks, gaps, perforations or other damage or deterioration which 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 min). 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 lined or relined with a chimney lining system listed for use in chimneys with reduced clearances in accordance with UL 1777. The chimney 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 fireblocking shall be provided in accordance with the International Building Code. SECTION 502 (IFGC) VENTS 502.1 General. All 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 installation instructions. 502.2 Connectors required. Connectors shall be used to connect appliances to the vertical chimney or vent, except where the chimney or vent is attached directly to the appli- ance. Vent connector size, material, construction and installa- 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 not be less than the clearance to combustibles specified by the vent man- ufacturer's installation instructions. Where vents pass through attic space, the shield shall terminate 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 installation instructions. 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'/2 inches (38 mm) from the nearest edge of the member, the vent shall be protected by shield plates. Protective steel shield plates having a minimum thickness of 0.0575 inch (1.463 84 2012 INTERNATIONAL FUEL GAS CODE" 17 C,gbt@ ON I ICC ALL RIGHTS RESERVED Awsed by ().(-)O,d,,Nmmbsx 100760189 oc Sep SO, 201902 Os PM(PDT)p—Pot to l»eAg—mt,oUICC No FYUP ep,odw.noa oAYUP, S I ( �ep� odUt.. byanytlu,dparty.oPANb�toc UoFsd Single—mly mpymgand-PyodmgFokb,Ad ANY VNAVTHORIVED REPRODUCTION REDISTRIBUTION IS A VIOLATION OF THE PEDRRAL COPYRIGHT 11 AND THE LICENSE AGREEMENT, AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER CHIMNEYS AND VENTS mm) (No. 16 gage) shall cover the area of the vent 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. 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 503.2.1 through 503.2.4 and 501.8, all appliances shall be connected to venting systems. 503.2.1 Ventilating hoods. Ventilating hoods and exhaust systems shall be permitted to be used to vent appliances installed in commercial applications and to vent industrial appliances, such as where the process itself requires fume disposal. 503.2.2 Well -ventilated spaces. Where located in a large and well -ventilated space, industrial appliances shall be permitted to be operated by discharging the flue gases directly into the space. 503.2.3 Direct -vent appliances. Listed directventappli- 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 and shall be installed in accordance with the manufacturer's installation 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. 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 into 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. Venti- lating hoods and exhaust systems shall be permitted to be used to vent appliances installed in commercial applica- tions. Where automatically operated appliances, other than commercial cooking appliances, are vented through a ven- tilating 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 air -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. 503.4 Type of venting system to be used. The type of vent- ing system to be used shall be in accordance with Table 503.4. 503.4.1 Plastic piping. Plastic piping used for venting appliances listed for use with such venting materials shall be approved. 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 installation instruc- tions. Where a primer is required, it shall be of a con- trasting color. 2012 INTERNATIONAL FUEL GAS CODE" 85 I II I Co,gbtOO?.ot I ICC ALL RIGHTS RESERVED Awsedby().(-)O,d,,Nmmbsx 100760189 oc Sep so.2.o19 oa.Os PM(PDT)p—Pot to IL eAg—mt,oUICC No FYUPep,oddtoaoAYUP, (,,Fod,Yo¢ebymytl,dputy,o,ANb,to,au o,sd Single —ooly, mpymg Pod-Pyo,k,Fokbad ANY VNAVTHORIVED REPRODUCTION REDISTRIBUTION IS A VIOLATION OF THE FEDERAL COPYRIGHT ACT AND THE LICENSE AGREEMENT, AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER CHIMNEYS AND VENTS yI 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) Chimney (Section 503.5) Single -wall metal pipe (Section 503.7) Listed chimney 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 appliances As specified or furnished by manufacturers of listed appliances (Sections 503.4.1, 503.4.2) Category III appliances As specified or furnished by manufacturers of listed appliances (Sections 503.4.1, 503.4.2) Category IV appliances As specified or furnished 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 Chimney (Section 503.5) Unlisted combination gas and oil -burning appliances Chimney (Section 503.5) Listed combination gas and oil -burning appliances Type L vent (Section 503.6) or chimney (Section 503.5) Combination gas and solid fuel -burning appliances Chimney (Section 503.5) Appliances listed for use with chimneys only Chimney (Section 503.5) Unlisted appliances Chimney (Section 503.5) Decorative appliances in vented fireplaces Chimney Gas -fired toilets Single -wall metal pipe (Section 626) Direct -vent appliances See Section 503.2.3 Appliances with integral vent See Section 503.2.4 503.4.2 Special gas vent. Special gas vent shall be listed and installed in accordance with the special gas vent man- ufacturer's installation instructions. 503.5 Masonry, metal and factory -built chimneys. Masonry, metal and factory -built chimneys shall comply with Sections 503.5.1 through 503.5.10. 503.5.1 Factory -built chimneys. Factory -built chimneys shall be installed in accordance with the manufacturer's installation instructions. Factory -built chimneys 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 in accordance with NFPA 211. 503.5.3 Masonry chimneys. Masonry chimneys shall be built and installed in accordance with NFPA 211 and shall be lined with approved clay flue lining, a listed chimney lining system or other approved material that will resist corrosion, erosion, softening or cracking from vent gases at temperatures 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 in accordance with the liner manufacturer's installation instructions. A per- manent 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 burn 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 503.6.3. 503.5.4 Chimney termination. Chimneys for residential - type or low -heat appliances shall extend at least 3 feet (914 mm) above the highest point where they pass through a roof of a building and at least 2 feet (610 mm) higher than any portion of a building within a horizontal distance of 10 feet (3048 mm). Chimneys for medium -heat appli- ances shall extend at least 10 feet (3048 mm) higher than any portion of any building within 25 feet (7620 mm). Chimneys shall extend at least 5 feet (1524 mm) above the highest connected appliance draft hood outlet or flue col- lar. Decorative shrouds shall not be installed at the termi- nation of factory -built chimneys except where such shrouds are listed and labeled for use with the specific fac- tory -built chimney system and are installed in accordance with the manufacturer's installation instructions. 4m 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. 86 2012 INTERNATIONAL FUEL GAS CODE" Copy,gbt OO?.ot I ICC ALL RIGHTS RESERVED Awsed by ().(-)O,d,,Nmmbsx/00760/89 oc Sep s, 2019 Oi R9 To (PDT) p—Potb l»eAge mt,oUICC No FYUP ep,oddtoa oAYUP, ,Fod,Yo¢ebymytl,dputy,o,ANb,to,au o,sd Single —oPIA opymg andortuodmgFokbad ANY VNAVTHORIVED REPRODUCTION REDISTRIBUTION IS A VIOLATION OF THE FEDERAL COPYRIGHT ACT AND THE LICENSE AGREEMENT, AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER CHIMNEYS AND VENTS 2. For sizing an individual chimney 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 times 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 chimney, 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 503.5.6.3 and its siz- ing is in accordance with Section 503.5.5, its contin- ued use shall be allowed where the appliance vented by such chimney is replaced by an appliance of sim- ilar type, input rating and efficiency. 503.5.6.2 Cleanouts. Cleanouts shall be examined to determine if they will remain tightly closed when not in use. 503.5.6.3 Unsafe chimneys. Where inspection reveals that an existing chimney 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 appli- ance shall not be connected to a chimney flue serving a separate appliance designed to burn solid fuel. 503.5.7.2 Liquid fuel -burning appliances. Where one chimney flue serves gas appliances and liquid fuel - burning appliances, the appliances shall be connected through separate openings or shall be connected through a single opening where joined by a suitable fit- ting located as close as practical to the chimney. 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. A listed combination gas- and oil fuel - burning appliance shall be permitted to be connected to a single chimney flue. The chimney flue shall be sized to properly vent the appliance. 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 installa- 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 at least 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 pipinginstalled within a masonry chim- ney flue shall not be used to vent another appliance. The insertion of another liner or vent within the chimney 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 directventappli- ances designed for installation in a solid fuel -burning fireplace and installed in accordance with the manufac- turer's installation instructions. 503.6 Gas vents. Gas vents shall comply with Sections 503.6.1 through 503.6.13 (see Section 202, Definitions). 503.6.1 Installation, general. Gas vents shall be installed in accordance with the manufacturer's installation instruc- tions. 503.6.2 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. 503.6.3 Gas vents installed within masonry chimneys. Gas vents installed within masonry chimneys shall be installed in accordance with the manufacturer's installa- tion instructions. 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 -burning appliances or incinerators." 2012 INTERNATIONAL FUEL GAS CODE" 87 I II I C,Ty,ght @ zoI I ICC ALL RIGHTS RESERVED Awsedby().(-)O,d,,Nmmbsx1oovco189 oc SIP so.2.o19 oa.ws PM(PDT)p—Pot to IL eAgemt,oUICC No FYUPep,oddtoaoAYUP, (,,Fod,Yo¢ebymytl,dputy,o,iNb,to,au o,sd Single —oPIA opymg PodortuodmgFokbad ANY VNAVTHORIVED REPRODUCTION REDISTRIBUTION IS A VIOLATION OF THE FEDERAL COPYRIGHT ACT AND THE LICENSE AGREEMENT, AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER CHIMNEYS AND VENTS 100760189 503.6.4 Gas vent terminations. A gas vent shall termi- nate in accordance with one of the following: 1. Gas vents that are 12 inches (305 mm) or less in size and located not less than 8 feet (2438 mm) from a vertical wall or similar obstruction shall terminate above the roof in accordance with Figure 503.6.4. 2. Gas vents that are over 12 inches (305 mm) in size or are located less than 8 feet (2438 mm) from a ver- tical wall or similar obstruction shall terminate not less than 2 feet (610 mm) above the highest point where they pass through the roof and not less than 2 feet (610 mm) above any portion of a building within 10 feet (3048 mm) horizontally. 3. As provided for industrial appliances in Section 503.2.2. 4. As provided for direct -vent systems in Section 503.2.3. 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 SI: 1 inch = 25.4 mm, 1 foot = 304.8 mm. FIGURE 503.6.4 TERMINATION LOCATIONS FOR GAS VENTS WITH LISTED CAPS 12 INCHES OR LESS IN SIZE AT LEAST 8 FEET FROM A VERTICAL WALL 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. 503.6.4.1 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 installation instructions. 503.6.5 Minimum height. A Type B or L gas vent shall terminate at least 5 feet (1524 mm) in vertical height above the highest connected appliance draft hood or flue collar. A Type B-W gas vent shall terminate at least 12 feet (3658 mm) in vertical height above the bottom of the wall furnace. 503.6.6 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. 503.6.7 Forced air inlets. Gas vents shall terminate not less than 3 feet (914 mm) above any forced air inlet located within 10 feet (3048 mm). 503.6.8 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. 503.6.9 Size of gas vents. Venting systems shall be sized and constructed in accordance with Section 504 or other approved engineering methods and the gas vent and appli- ance manufacturer's installation instructions. 503.6.9.1 Category I appliances. The sizing of natural draft venting systems serving one or more listed appli- ances 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 fol- lowing 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. 503.6.9.2 Vent offsets. Type B and L vents sized in accordance with Item 2 or 3 of Section 503.6.9.1 shall 88 2012 INTERNATIONAL FUEL GAS CODE® Cop-,ght @ 2011 ICC ALL RIGHTS RESERVED Accessed by (), (-) O,de, Number' #100760189 ov Sep 30, 2019 02 03 PM (PDT) pins t to U...v e Ag.eem-t-th ICC No fu,threprod.,L,., vo fu,the, ' reproduct�ovsbya.ythadpa,ty,o,d�stc�but�ova.thoc�zed Smgle—o.Iy,copT.ga dvetwockmg proh�]Ated ANY UNAUTHORIZED REPRODUCTION OR DISTRIBUTION ISA VIOLATION OF THE FEDERAL COPYRIGHT ACT AND THE LICENSE AGREEMENT, AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER CHIMNEYS AND VENTS E* 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. 503.6.9.3 Category II, III and IV appliances. The siz- ing of gas vents for Category II, III and IV appliances shall be in accordance with the appliance manufac- turer's instructions. 503.6.9.4 Mechanical draft Chimney venting systems using mechanical draft shall be sized in accordance with approved engineering methods. 503.6.10 Gas vents serving appliances on more than one floor. A common vent shall be permitted in 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 as floor levels. 503.6.10.1 Appliance separation. All 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 air that is not supplied from an occupiable space. 503.6.10.2 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 504.3(1), provided that: 1. The available total height (M 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 not be 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. 503.6.11 Support of gas vents. Gas vents shall be sup- ported and spaced in accordance with the manufacturer's installation instructions. 503.6.12 Marking. In those localities where solid and liq- uid fuels are used extensively, gas vents shall be perma- nently identified by a label attached to the wall or ceiling at a point where the vent connector enters the gas vent. The determination of where such localities exist shall be made by the code official. The label shall read: "This gas vent is for appliances that burn gas. Do not con- nect to solid or liquid fuel -burning appliances or incinera- tors." 503.6.13 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. Single -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. Uninsulated 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 at least 5 feet (1524 mm) in vertical height above the highest connected appliance draft hood outlet or flue col- lar. Single -wall metal pipe shall extend at least 2 feet (610 mm) above the highest point where it passes through a roof of a building and at least 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. 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 at least 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 accordance with Section 503.7.7. 503.7.6 Installation. 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 503.7.7. 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: For listed appliances with draft hoods and appli- ances listed for use with Type B gas vents, the thim- 2012 INTERNATIONAL FUEL GAS CODE" 89 I II I Co,gbtOO?.ot I ICC ALL RIGHTS RESERVED Awsedby().(-)O,d,,Nmmbsx 100760189 oc Sep so.2.o19 oa.Os PM(PDT)p—Pot to IL eAg—mt,oUICC No FYUPep,oddtoaoAYUP, (,,Fod,Yo¢ebymytl,dputy,o,ANb,to,au o,sd Single —ooly, mpymg Pod-Pyo,k,Fokbad ANY VNAVTHORIVED REPRODUCTION REDISTRIBUTION IS A VIOLATION OF THE FEDERAL COPYRIGHT ACT AND THE LICENSE AGREEMENT, AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER CHIMNEYS AND VENTS ble shall be not lees 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- rial. Any material used to close up such opening shall be noncombustible. 503.7.8 Clearances. Minimum 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 not be greater than seven times 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 which 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 503.6.12. 503.8 Venting system termination location. The location of venting system terminations shall comply with the following (see Appendix C): 1. A mechanical draft venting system shall terminate at least 3 feet (914 mm) above any forced -air inlet located within 10 feet (3048 min). 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 terminate at least 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 at least 12 inches (305 mm) above finished ground level. 3. The vent terminal of a direct -vent appliance with an input of 10,000 Btu per hour (3 kW) or less shall be located at least 6 inches (152 mm) from any air opening into a building, and such an appliance with an input over 10,000 Btu per hour (3 kW) but not over 50,000 Btu per hour (14.7 kW) shall be installed with a 9-inch (230 mm) vent termination clearance, and an appliance with an input over 50,000 Btu/h (14.7 kW) shall have at least a 12-inch (305 mm) vent termination clearance. The bottom of the vent terminal and the air intake shall be located at least 12 inches (305 mm) above finished ground level. 4. Through -the -wall vents for Category II and IV appli- ances and noncategorized condensing appliances shall not terminate 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. 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, provision shall be made to drain 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- 90 2012 INTERNATIONAL FUEL GAS CODE" 17 C,gbt@ ON I ICC ALL RIGHTS RESERVED Awsed by ().(-)O,d,,Nmmbsx 100760189 oc Sep SO, 201902 OsPM(PDT)p—Pot to l»eAg—mt,oUICC No FYUP ep,odw.noa oAYUP, S I ( �,Fod,Y..1yanytlu,dparty.oPANb�toc UoFsd Single—mlym,ymgand-Pyo,k,Fokbad ANY VNAVTHORIVED REPRODUCTION REDISTRIBUTION IS A VIOLATION OF THE PEDRRAL COPYRIGHT 11 AND THE LICENSE AGREEMENT, AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER CHIMNEYS AND VENTS 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 503.10.2.1 through 503.10.2.5. 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 unconditioned 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 min) thick; 3. Aluminum (1100 or 3003 alloy or equivalent) sheet not less than 0.027 inch (0.69 min) 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 above; or 6. A listed vent connector. Vent connectors shall not be covered with insula- tion. Exception: Listed insulated vent connectors shall be installed in accordance with the manufacturer's installation 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 than 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 mm 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 C 64, Type F), or the equivalent. 2. The lining shall be at least 2'/2 inches (64 mm) thick for a vent connector having a diameter or greatest cross -sectional dimension of 18 inches (457 min) or less. 3. The lining shall be at least 4'/z inches (114 mm) thick laid on the 41/2-inch (114 min) bed for a vent connector having a diameter or greatest cross -sectional dimension greater than 18 inches (457 min). 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 mmE 503.10.3 Size of vent connector. Vent connectors shall be sized in accordance with Sections 503.10.3.1 through 503.10.3.5. 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 2012 INTERNATIONAL FUEL GAS CODE" 91 I II I C,gbtOO?.ot I ICC ALL RIGHTS RESERVED Awsedby().(-)O[d6 Nombsx1oovco1es oc SIP so.2.o19 oa.ws To(PDT)p—Pot to IL eAgemt,oUICC No FYUPep,oddtoaoAYUP, (,,Fod,Yo¢ebymytl,dputy,o,ANb,to,au o,sd Single —ooly, mpymg Pod-Pyo,k,FokbUd ANY VNAVTHORIVED REPRODUCTION REDISTRIBUTION IS A VIOLATION OF THE FEDERAL COPYRIGHT ACT AND THE LICENSE AGREEMENT, AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER CHIMNEYS AND VENTS there are no instructions, the manifold shall be designed and constructed in accordance with approved engineer- ing 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 minimum 1-foot (305 mm) rise. 503.10.3.3 Multiple appliances. Where two or more appliances are connected to a common vent or chim- ney, each vent connector shall be sized in accordance with Section 504 or other approved engineering meth- ods. As an alternative method applicable only when 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 which 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 chimney at least '/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. TABLE 503.10.5a CLEARANCES FOR CONNECTORS APPLIANCE MINIMUM DISTANCE FROM COMBUSTIBLE MATERIAL Listetl Type Bgas vent material Listetl Type Lvent 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 burner 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 36 inches As listed For SI 1 inch= 25 4 rum 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 92 2012 INTERNATIONAL FUEL GAS CODE" 74 C,gbt@ ON I ICC ALL RIGHTS RESERVED Awsed by ().(-)O[d6 Nombsx 100760189 oc Sep SO, 2019 oa. ws To (PDT) p—Pot to l»eAge mt,oUICC No FYUP ep,odw.noa oAYUP, S I ( �,Fod,Y.. byPoytlubdparty.oPANb�toc UoFPd Single—mlym,ymgand-Pyo,k,FokbUd ANY VNAVTHORIVED REPRODUCTION REDISTRIBUTION IS A VIOLATION OF THE TRY REAL COPYRIGHT 11 AND THE LICENSE AGREEMENT, AND SUBJECT 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 503.7.4. 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; directventappliances; 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. 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 installation instruc- tions. 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 installation instructions. 2012 INTERNATIONAL FUEL GAS CODE" 93 I II I C,Ty,ght @ zoI I ICC ALL RIGHTS RESERVED Awsedby().(-)O,d,,Nmmbsx1oovco189 oc SIP so.2.o19 oa.ws PM(PDT)p—Pot to IL eAgemt,oUICC No FYUPep,oddtoaoAYUP, (,,Fod,Yo¢ebymytl,dputy,o,ANb,to,au o,sd Single —oPIA opymg PodortuodmgFokbad ANY VNAVTHORIVED REPRODUCTION REDISTRIBUTION IS A VIOLATION OF THE FEDERAL COPYRIGHT ACT AND THE LICENSE AGREEMENT, AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER CHIMNEYS AND VENTS 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. 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 directventappliances, 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. NAT Max. The maximum input rating of a Category I draft - hood -equipped 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 + 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 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 system shall be determined using the "NAT Max" column. The minimum capacity shall be determined as if the appliance were a fan -assisted appliance, using the "FAN Min" column to determine 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 (M is at least 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. 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-inch-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 (0.79 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 includ- ing 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 determining maximum capacity for high altitude installation. Actual input (derated for alti- tude) shall be used for determining minimum capacity for high altitude installation. 94 2012 INTERNATIONAL FUEL GAS CODE" C,gbt@ ON I ICC ALL RIGHTS RESERVED Awsed by ().(-)O,d,,Nmmbsx 100760189 oc Sep SO, 201902 ws PM(PDT)p—Pot to IL eAg—mt,oUICC No FYUP ep,odw.noa oAYUP, S I ( odUto.. by POVOtput, I,ANb�to,P,,UoFsd Single—mly mpymg Pod oNyo,k,Fokb,Ad ANY VNAVTHORIVED REPRODUCTION OR DISTRIBUTED N IS A VIOLATION OF THE riRPEDREAL COPYRIGHT 11 AND THE LICENSE AGREEMENT, AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER CHIMNEYS AND VENTS 504.2.6 Multiple input rate appliances. For appliances with more than one input rate, the minimum 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 minimum 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 determine 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 503.6.4, and where vents terminate in accordance with Section 503.6.4, 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 IV, 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 run 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 installation instructions for such listed accessories. 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 interpola- tion 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(7) 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 when the second appliance is a fan -assisted appliance, or the NAT+NAT column when the sec- ond appliance is equipped with a draft hood. 2012 INTERNATIONAL FUEL GAS CODE" 95 I II I Co,gbtOO?.ot I ICC ALL RIGHTS RESERVED Awsedby().(-)O,d,,Nmmbsx1oovco189 oc SIP so.2.o19 oa.ws PM(PDT)p—Pot to IL eAg—mt,oUICC No FYUPep,oddtoaoAYUP, (,,Fod,Yo¢ebymytl,dputy,o,ANb,to,au o,sd Single —ooly, mpymg Pod-Pyo,k,Fokbad ANY VNAVTHORIVED REPRODUCTION REDISTRIBUTION IS A VIOLATION OF THE FEDERAL COPYRIGHT ACT AND THE LICENSE AGREEMENT, AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER CHIMNEYS AND VENTS 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. 3.2. 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 504.3.2. TABLE 504.3.2 MAXIMUM VENT CONNECTOR LENGTH CONNECTOR DIAMETER (inches) CONNECTOR MAXIMUM HORIZONTAL LENGTH (feet) 3 4l/z 4 6 5 7l/z 6 9 7 10l/z 8 12 9 13l/z 10 15 12 18 14 21 16 24 18 27 20 30 22 33 24 36 For SI 1 inch= 25 4 turn, 1 foot= 304 8 Part 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: 1. 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 (M 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 (Lj shall not exceed V/z feet for each inch (18 mm per mm) of common vent connector manifold diameter (D). 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 P/z 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 V/z 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 includ- 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 includ- 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- 96 2012 INTERNATIONAL FUEL GAS CODE" C,gbt@ ON I ICC ALL RIGHTS RESERVED Awsed by ().(-)O[d6 Nombsx 100760189 oc Sep SO, 2019 oa. Os PM(PDT) p—Pot to l»eAge mt,oUICC No FYUP ep,odw.noa oAYUP, S I ( [,Fod,... by mythdparty.o,±RYb�tocP,,UoFPd Single—mly mpymg Pod oNyo,k,FokbUd ANY VNAVTHORIVED REPRODUCTION OR DISTRIBUTED N IS A VIOLATION OF THE riRFOR REAL COPYRIGHT 11 AND THE LICENSE AGREEMENT, AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER CHIMNEYS AND VENTS 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 as part of the common gas vent and shall be constructed of materials consistent with that of the common 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 determining minimum capacity for high -altitude installation. 504.3.11 Connector rise measurement. Connector rise (M 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 (a 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 (M 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 centerline 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 (M 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 listed 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 11/2 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- taining 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 chimney 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 chimneys shall be sized by using Table 504.3(1) or 504.3(2) for Type B vents, with the maximum capacity reduced by 20 percent (0.80 x maximum capacity) and the minimum capacity as shown in Table 504.3(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 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 503.6.4 and where vents terminate in accordance with Section 503.6.4, 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 connector is Type B double wall. 2. At least one appliance is draft hood equipped. 3. The combined appliance input rating is less than the maximum capacity given by Table 504.3(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 2012 INTERNATIONAL FUEL GAS CODE" 97 I II I Co,gbtOO?.ot I ICC ALL RIGHTS RESERVED Awsedby().(-)O,d,,Nombsx1oovco189 oc SIP so.2.o19 oa.ws PM(PDT)p—Pot to IL eAg—mt,oUICC No FYUPep,oddtoaoAYUP, (,,Fod,Yo¢ebymytl,dputy,o,ANb,to,au o,sd Single —ooly, mpymg Pod-Pyo,k,Fokbad ANY VNAVTHORIVED REPRODUCTION REDISTRIBUTION IS A VIOLATION OF THE FEDERAL COPYRIGHT ACT AND THE LICENSE AGREEMENT, AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER CHIMNEYS AND VENTS 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- ted provided 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 [e.g., 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 [e.g., 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. All combinations of pipe sizes, single -wall and double -wall metal pipe shall be allowed within any connector run(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 com- mon 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 installation 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 interpo- 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 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 chimneys for building heating appliances producing flue gases having a temperature not greater than 1,000°F (538°C), 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 installation instruc- tions. 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°C), 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 installation instructions. 98 2012 INTERNATIONAL FUEL GAS CODE" 17 S I C,SVYght Oo ON I ICC ALL RIGHTS RESERVED Awsed by ().(-)O,d,,Nombsx 100760189 oc Sep SO, 2019 oa. OsPM(PDT) p—Pot to l»eAge mt,oUICC No FYUP ep,odw.noa oAYUP, ( [IFod Ut.. byzoyUb,dparty.oPAembmoo Uoosd Single —oPIA mpymg andortuodmgploIRb,Ad ANY VNAVTHORIVED REPRODUCTION REDISTRIBUTION IS A VIOLATION OF THE FOR REAL COPYRIGHT 11 AND THE LICENSE AGREEMENT, AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER CHIMNEYS AND VENTS % O O N C I W I CO LSJ I CO I N C m I N N m CO I I A,, Cp LSJ M O 6J W OJ C N W C N O F 6J OJ .ti 6J L` LSJ M Z 22 C M M M LSJ C C M LSJ C C C CO LSJ LSJ LSJ C l� CO LSJ LSJ LSJ LSJ NI M CO O O m I CO 6J C .� .� � LSJ P, 6J C M M O O 6J O� N^ O lI e[J M^ O t` e[J M Z 22 W LP LP LP CO CO LP CO CO CO - W W I I - m m W W W Q LL C M M 0 6J M O O� � O ep pJ ti 0 ep pJ .ti ti O LSJ 6J N ti O LSJ 6J ti M O LSJ W .ti 'y C % O OJ 6J M LSJ N M M O OJ CO O OJ C M Cp M LSJ O A I W I I .ti N .ti O OJ LSJ C M N O W I I I CO C N Z 22 M N N N C M M M C M M M LSJ C t M M LSJ C C C C C qW LSJ 6J M D M M M I M N C O M O O O LL� L` LSJ C C mN .ti W W I GE)C M N O I M N O W O^ 6J l� LSJ M Z 2CES C C C l� C C C W LSJ LSJ LSJ m Cp Cp Cp LSJ t` Cp Cp Cp Cp Q LL C M 6J M O M 6J W W u'J O CO I .ti W u'J OM N OM G Z 2N Sol SolON M N N N M N N N M N C M M M m ^ LL 0 A N N O W CO C M O 6J l� CO C M O mW CO 2 LSJ M M M LSJ M M LSJ LSJ C C C Z 0 L Q LL C C CO W N O C O W W W C C W M N .� C 0 yI O C CO l� O C t` W O C CO W O M CO W m O M CO = 0 2 F Q N LSJ O L` OJ M e[J 6J C LSJ M O W M I LSJ CE) LSJ LSJ LSJ m W W LSJ t` LSJ W LSJ N L` .� W O W 6J L` 6J .� W L` CO d/ w Z Z '2 N .ti .-. .ti N .ti — .ti N .ti .-. .ti N N N N .ti M N N N N N Z LSJ N I M LSJ M LSJ I I m O I N m O OJ .ti O 1 1 q C C W W O M M .ti O C L` CO OJ M N Q � ZM Q N N N' LSJ M M M M LSJ M M M M M 0 z f m LL C N O 6J W M C CE) N I N M C CE) O I N M C w > O. i O M LSJ LSJ O N LSJ CO O N LSJ CO O N C CO w u f% .ti LSJ M O or,O or, m CO m C OJ l� D N LSJ W N CE) O O N C Z Q m C O O O OJ N O CO N N W LSJ C M N O CO CO OJ C M 1, J Z 22 ti ti N d d % .� l� M 6J CO W .� C LSJ C t` CO t` CO 6J CO LSJ 6J O N 6J t` CO N Q N LSJ N LSJ .ti LSJ C .ti l� N L` .ti L` CO .ti 6J N 6J .ti W L` .ti N M N N .ti N O N 6J .ti C M LSJ N C N N N .ti N O N Z Q LL O O O O O N M C N C LSJ N C LSJ N M LSJ Cp M LSJ LSJ Cp N Z 22 W CO CO CO 6J l� t` CO 'y W t` t` ti 6J W W t` ti ti 6J W W t` q N LSJ 6J M LSJ W M C .� Cp O 4 N N 6J M M C Cp Q 2 i[J ti 0 0 CO ti O ti ti ti ti ti ti ti ti ti ti ti ti ti ti ti ti Z Q LL C W O CO :P O W C m W CO OJ C q CE) CE) C N O O W OJ M N O CO W W OJ .ti I .ti .ti W C O OJ Z 2 C M M M LSJ C M M LSJ C C M LSJ C C C M CE) LSJ C C C M M N W 6J CO C I M 6J W .� t` .� C 6J LSJ 6J M I` LSJ .� C W N l� LSJ C C W LSJ LSJ C W CO LSJ LSJ m CE) CE) LSJ LSJ m I L` CE) LSJ LSJ Z Q LL O M LSJ O N M W O N M O O N 6J LSJ O O W C W N N N N N M N N M N N M C ¢J CES O N or, W O N or, O N or, ti O N or, O OJ O Qv J f 2 y co w w 2 a 2012 INTERNATIONAL FUEL GAS CODE" 99 I " ' C,gbt@zot I ICC ALL RIGHTS RESERVED Awsedby().(-)O[d6 Nombsx1oovco189 oc Sep V,201902 os PM(PDT)p,Ymmtto IL eAg—mt,oUICC No FYUP,,eplodmeoo.00 AYUP, (,eFod,Yo¢ebymytl,dputy,o,ANb,to,au o,sd Single—mlympymg mdortuodmg F oARItAd ANY VNAVTHORIVED REPRODUCTION REDISTRIBUTION IS A VIOLATION OF THE FEDERAL COPYRIGHT ACT AND THE LICENSE AGREEMENT, AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER CHIMNEYS AND VENTS f i� LSJ O W W W W C N M W LYS CO O LYS O M I Q LSJ O W CE) C N m LYS .� M I C N I O M N .� M W C W L '2 W I CO CO CO CO LYS m W I I I I CO m m 6J W W W I W N LYS W N O CO m O M CE) LYS W CE) 6J N LYS W I W % C l� LP N O O M, LP M O L` N O M .ti 6J Cp M W W LSJ 0 0 0 0 l� N N N N 6J LP LP C C C M N Z ti ti ti ti ti ti ti ti ti ti ti ti ti ti ti ti ti ti ti ti Q LL .� t` .� .� 6J N pJ L� O�� O N M L� O M� O M Cp O N�m- O N C N % O LSJ C t` O M C W LP LP m N CE) N O O N m CE) M I LYS N LP M N O m l� C O O W I LYS N I O m I CO LP N I z Lp LP LP LP LP LP LP LP t` t` Cp Cp Cp Cp Cp LP % t` Lp W LYS M N LYS O LYS .� W CO m '2 'y N .� = W CE) C O N l� CO M C .�_ .�_ O O O Z - 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N N LP N O C or,m M M m m M M N M M 6J N z Z� Q LL C Cp W I Cp W C LYS LP C M C N M M O m W Q M C LYS CE) W O .� M C LYS CE) W O .� M C LP LP t` 'z 2 p '2 N CO CO C M N z Q LL M W I C M M I LP N O 6J O CO M O L` � O N M C LP IO N M C LP Cp O N M N C CO C O Q Q Q l� a Qi Qi Qi Qi Qi Qi Qi Qi Qi Qi Qi Qi Qi Z 2m co or, LYS LYS z z z z z z z z z z z z z z z z M p •� L� O C W Q 0 CO N CES O Q Q Q Q Q Q Q Q Q Q mc0 LYS 'Z .� W W I I Z Q Q O CO 6J Q Q Q Q Q Q Q Q Q Q O Sy, N N M LP 'z O N N LYS J ^ O L[J O O LP O L[J O O O N LP O L[J O O O N M N M LP QJ v f �Ia o 0 0 W a v M LYS 2 a 100 2012 INTERNATIONAL FUEL GAS CODE" " ' C,gbt@ON I ICC ALL RIGHTS RESERVED Awsedby().(-)O[d6 Nombsx1oovco189 oc Sep SO, 201902 OsPM(PDT)p,Ymmtto l»eAg—mt,oUICC No FYUP ep,od U:o—oAYUP, L I ( �ep�od Uto.. bymyUb,dpPLP,o[dlembmo—Uoosd Single—mly mpymg Pod-Pyodmgp,okb,Ad ANY VNAVTHORIVED REPRODUCTION REDISTRIBUTION IS A VIOLATION OF THE PEDERALCO PYRIGHT 11 AND THE LICENSE AGREEMENT, AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER CHIMNEYS AND VENTS CE O O O C M = L` C O OJ h OJ O O O L� O Z h M CO N CO_ CO N O C O M O M O M C C M M M M M M M h O C O C O C OJ M O CO L` C CO CO C CO C C C N 'j Q q �[Mi W CO O O C N O C ti O C OJ OJ L� CO C N CO C N CO C N CO W M ti h N _ OJ O h M CO N CO h CO OJ .ti CO yMj _ ti d� L` OJ .ti L` M O L` L� O L` M OJ CO LL '2 d� h CO � h CO M h CO M h CO M � h CO CO F Z x O OJ O N h O N N CO M M CO _ C _ M _ L� M C OJ N OJ_ OJ L` N C C C M OJ M M C M M O M M OJ OJ C OJ M OJ w M M w M OJ M CO M N M L� L` CO h OJ CO LCi N O CO O ICE � OJ OJ LCi pJ y� pJ N q L� M M M h OJ OC OC N M M N CO N L` OJ OJ OJ OJ L` Z h M M M CO M M M L` Q LL C_ O O CO OJ CO N O CO M CO L� L� M O OJ OC CO C O O OJ N O C CO O OJ CO M O OJ OC ti C 4C OC F x O M C_ O ICi OC_ LLC M OC_ O OC_ O ICi L` O ti O OJ O_ O L� O_ O ICi O O C OC O OC O O O L� L` OJ M O O O CO O O L� O Mi O OJ O ICi Z2 N .ti .ti .ti N N N N M N N N M N N N N C M M M M M N OC L� CO OC OJ OC CO LLC LLC M O OJ O N N OJ OC OC M OC M Z C N _ M _ PC _ PC4C M M M Q LL 2 C_ CO O L� OC OC O C N OJ OJ N OJ O L` M OJ h O OJ OJ M O L� OJ h O CO OC h O M h M L` O N M ti h OJ f m LL F% O Cp O pC LLC L� O L` O N O O LLC OC 0 L` 0 LO 0 pJ L` 0 0 O 0 - LLC N M — O ICE O - O - d� - O O LLC - O M C NQ Z .ti IV, — —— IV, tiN N N N N M N SA N N N O N I M C M N N w OJ pC w I N N M CO I O I =Z CO Q y q O LLC N N M OC . I OC CO I I CO I O CO L` LLC N OC M OJ C I/I 2 pC N _ M . . h L` pC pC_ pC_ tp C C C M M OJ OJ OC OC I O O Z M N N N C N N C N N N I M M M M CO M M M M M 2 LL ~ C O LLC N O O ti C O ti I 4C O N O O O I O CO OC M OC CO C I OC O I L� O L` I M N L` I O Z '2 N M M �4 N �4 M M N M CO M N M M N M M C W y~j p: F Z x '2 O PC _ O L� _ O CO _ O _ O C L� O C M_ O PCA, M_ O M_ 4C OJ_ O wCO C_ C_ 0 PCI C_ 0 _CO_ 0 IC OC N .-r I O _ O O OC IC O O O w'2 0SA Z ID f y q M OC OJ CS .-r CS M OJ SJ O M M O O N C CO 4C OC N OJ O N OJ CO SJ OJ N OC C L� SJ .-r L� SJ OC OC OC C w a oo --- M O O_ O I` N c IA, co_ co_ co m O O O o0 oo_ > Z Z N .ti PC N cA, N PC N cA, N C N cA, cA, N C M M M N W LL C OC N Cp pC .� SJ .� M OC SJ M OC SJ SJ M CS h z Z O L� C O CS 4C OC O CS C SJ O , C N pC O M L� O M Q J SA M a Q Z o 0 0 0 M 0 O 0 O 0 O O 0 ICi C 0 M O o OC O 0 AI 1 0 M M m OC o h N 0 O SJ o 4C m SJ C o CS C N C o SJ M O y ry L� N CS d' M_ OC M M_ O M M_ ti L� M C OC N C 4C N OC_ M I CS SJ CS_ SJ Cp CS_ N M N CS O_ .ti C O_ SJ O O_ Cp I, SJ_ .� O L` M C M_ O M_ N OC I N O Z IV, .ti .ti .ti N .ti .ti .ti N .ti .ti .ti M N N N .ti M N N N N N Q LL C O M SJ O OM SJ M O N SA SJ M�[Ii SA SA SAN C SA f x O O O O O TR M ON COS CE OIJ b b L� CS b 00 E� O Q N LCi LCi M t` M O LCi SJ pC Cp M O M_ Z 22 OC CS CS CS SJ L� L` L` - OC OC L` - SJ SJ SJ SJ - SJ N Z y ry C N SJ SJ IE, IE,m SJ �_ N o •-r I� SJ O_ o M O_ c N _ m N _ c O _ o OC N_ u� SJ C_ o L` C_ o C C_ m C_ M N_ SJ CS_ I CS_ CS_ CS_ Q LL .ti .ti .ti .ti .ti PC .ti .ti � .ti .ti N .ti .ti .ti N f Q x m O l� ICE ICi ICi M O CS ICi ti M O O SJ ON O CS . I . N O I . I O Cp . M O O M ICE OC M O OC OC ICi CS -L c c c co c m co co co co 00 co co O y q .NCS N L` C M SA 4C M ti O_ O O L` h L` O .-r PC M I O .-r w L` O_ SA 4C O_ Z '2 .-r CS CS CS - L� L` L` OC OC OC _ O O Q LL J a 0 0 0 0 ch. o c co o m o 0 0 QJ v f w 2 2012 INTERNATIONAL FUEL GAS CODE" 101 I " ' C,gbt OO C.ot I ICC ALL RIGHTS RESERVED Awsed by ().(-)O[d6 Nombsx1oovco189 oc Sep so.C.o1902 os PM(PDT) p,Ymmtto IL eAg—mt,oUICC No FYUP,,eplodmeoo.00 AYUP, (,eFod,Yo¢ebymytl,dputy,o,ANb,to,au o,sd Single—mlympymg mdortuodmg F oARItAd ANY VNAVTHORIVED REPRODUCTION REDISTRIBUTION IS A VIOLATION OF THE FEDERAL COPYRIGHT ACT AND THE LICENSE AGREEMENT, AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER CHIMNEYS AND VENTS Q % d O CO O O O CO N h IA .ti L` C .ti OJ M O M TO N_ O M C O CO w OJ w OF, C I O I O L` CO M O CO O O M O O w CO I M OJ CO CO M OJ M O OJ CO CO CO CO CO CO OJ OJ OJ OJ OJ OJ OJ % N OJ L� d� L� LL� O L� M O I OJ N d� O w w .. I M N I . O I w w C w M w I I CO I O I O I OSYS O O OJ O L` I M Q N Z '2 M O pj pj I pj C pj M pj pj CO CO O O O O O O O C C C C M M M N 0 Q LL C O h OJ OJ M h M TO O OJ h OJ M CO OJ M L` O ti h N C OJ M ti OJ C N C TO w OJ N L` CO O C O .ti C M c0 M C OJ w C N N OJ TO N h L` O _T N -o % O TO OJ O CO N N CO c, t� h oI m C PC M oI c OJ oo CO TO CO w.. m LCi I O LCi c c C O o CO O o N co o o PC.m m. O OJ O w OJ O o CO a N Z '2 b b b b _ _ _ d O m O M I L� M w w OJ N O OJ mOF, N O N m C_ I I` . O In OJ OJ_ L` CO_ �_ C_ M_ OJ N Uy U Z LL O O OF, OJ OF,w OO OF, OO TO OO OO OO OO CO O d 6 O u C f u O C L� ICi O W C TO M O OJ O c0 M OJ LLO CO c0 O L` L` O OJ CO M OJ C L` W N h y� OF, ICi d c d u y N m c I O N M c c N M C C IO co O o M m I o I I o r_ N .-. m .-. o o m t� m o0 0 n p Q d U C Q Z L� OO oO L` M I in . CO O I M CO M CO m I I -. InCO r_ N o o co co O I o M_ O C M M M M M M 4O C C C C C C CO 4O m E a u O N % d .-. C M o 0 OJ m 0 w m 0 w c C I co w CO c TO .-. m m M TO m C N TO .-r O m O m OF, TO t- TO c- C M m m c OO Z C N Z OJ I _ ti . _ . _ . . . . ti OF, OF, OF, OF, OF, OF, OO OF, N_ Cp .� L� O ti PCI.I PC w I OO w I. N PCPC PCC C I O� S M OF, M C OF, C O M N M M M C LLO LL O F % O L� O IO O O L` O O L` LLO OO O CO O L` OJ M LLO OO C M OO M 0 O 0 O CO CO OJ O ti LLO C OJ OJ N O IO N 0 Z L� M O M O M OF, N OJ_ N OO_ N I N C C CO M CO M I M M C M C M M I CO C I C I C C C M C C O C d = u Z Q VI d O C M 8, O C C OJ N d� N d� C L� C CO N M CO .-r O .-r N TO � .-r OJ w d� w L� OF, O .-r OF, O CO Q Q C L� L` CO 1 C 1 w OO_ I L` , CO I LCi C C PC M OJ I ¢ - C C C C C C W 4O 4O CO C C O .-. C 4O O .-. O OJ OJ C O OJ CO LL W O ti h M OO M C C O C M OJ N M M CO M C O N O. N O M M M I M w C W Z Z 2 O OJ_ O M_M_ O O O N_ O ON_ O .Mi_ O C O w Mi OO_ L� L ti L` LLO CO_ .ti . O TO O O OI LLO C C C N M .ti M L` O SYS O O Q f "JrN N N N N N N N N N N N C M M M M M M M Z = d I O CO O CO t� CO o h SYS IC PC .-. L` 4O o 4O c C oo C co M PC N c OF, c PC w r_ S7, L` r_ PC L` m CO_ m CO O TO 00 OO wa i = W U Z Q 4O M M M M M M CO C C C C C C L� 4O C_ LN . OJ N OJ OJ Mi .� M C O I N M N I OJ h LL J '2 O_ O I OJ M . M CE_ OJ C I O M C M O S L` N I M C a a Q r % o t� o o OO r_ - m M - N oo - o I - w TO o I N N O. c O_ co O_ r_ w OF, o OJ 0 I OJ 0 I -. m o O. I S7, C_ m M C_ r_ M_ o I N Z N _ N _ N _ N N N .ti .ti N N N N N N N N Z W d> Q % d N. 4O N w OJ ICi Cp C I M M LLO 4O C M O OJ O C O OO M N M M I OO _ OJ N _ O ICE _ OJ _ M2 M N— OO _ N _ N OO _ M Mi _ I. M O ICi OO Ca ¢ LL C N N N N N N C M M M M M M C C C C C C M C C OJ L� O ICi O .ti CO N C I CO O CO CO ICi O UI O J 0 0 CO OSYS M COSYS O O. h OJ NSYS CSYS wSYS O M_ OO OSYS N. M U J o o M m w c b o N w o PC m m C o O C m C m o C o c PCO_ 0 o w m o OO r_ L� c L` o L` m OTO CO o N W Z _ _ _ _ _ _ — C C ti C OO M L` ti ti CO CO LN OO C ICi I N .ti O O M I O m N N q O O OO C O L` O C M O CO OO N N O CO N pO O Z O O_ OJ_ OJ_ OJ_ OO_ OO_ C C C_ M_ M N OJ O O OF, OJ_ OO_ OO_ CO_ J M N .ti .ti .ti .ti .ti M N N N N N N M M M N N N N m in LL W a C O C LN C CO L� OO L` OSYS CO C SYS O O O OO C I L� ICi OJ N M O C C I O N C M� CO OO ti OJ y IO OJ CO I � N O ti N PC •-r .-r O O Z '2 OO OO OO OO L� OJ OJ OJ OJ OO N OJ_ ICi M_ M M_ O M_ N N N O CO_ O CO_ CO M O C C_ OJ C_ L� OJ_ ICi OJ_ N OJ_ OF, OO_ Cp OO_ O OO_ OO CO_ O Z _ _ _ _ SA- _ _ _ N .-r .-r .-r .-r .-r .-r .-r Q O C N C CO OJ O M ICi OO O OM w LL J OSYS I o SYSo o O N o SYSo 0 o N o SYS0 0 0 3 (7gg O W v M o 0 2 102 2012 INTERNATIONAL FUEL GAS CODE" " ' C,gbt@ON I ICC ALL RIGHTS RESERVED Awsedby().(-)O[d6 Nombsx loovcoles oc Sep SO, 201902 Os PM(PDT) pwmmtto l»eAg—mt,oUICC No FYUP eplodmno—oAYUP, Wk I ( �eplod Uto.. bymyUb,dpPLP,o[dlembmo—Uoosd Single—mlympymg Pod-Pyodmgplokb,Ad ANY VNAUTHORIVED REPRODUCTION REDISTRIBUTION IS A VIOLATION OF THE PEDERALCO PYRIGHT 11 AND THE LICENSE AGREEMENT, AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER CHIMNEYS AND VENTS x ¢ e z N m Z 'r 'r 'r 'r 'r - 'r 'r 'r - 'r 'r 'r 'r - 'r 'r 'r 'r 'r Q LL C ~ N aOp 2 2 v v v O in in v t� y in in W O O O O m t� t� t� O O O Q LL C M 00 Q 2 a m 2 Q LL C � N N N M N N M M N N N M N N N M c N N N M M c 2 \ H 4 m 2 � LL N N 0 ❑ Z m O Z Q u LL VI C r ❑ � N z m W z W Z x N n F N [� 0 F Q LL C y z a w Z > W ~ 'o z N 2 J X m n b a M a z Q Q LL C f x '2 - z 'r 'r 'r 'r 'r 'r 'r 'r 'r 'r 'r 'r 'r 'r 'r 'r 'r x N Z Q c, m z z x m v Z Z Z z Q LL C M in Q v M Q Q ~ xm M z. e z z z " y� N t� M in z z W in Z Z W in Z m O z z O O z z z z Q LL C W m Q Q n m Q Q n - [� Q a0 M M z z M M z z M Z M in Z Z M tin Z Z Z ¢J¢ W?a v J f c7 2 a PO w a 2 a 2012 INTERNATIONAL FUEL GAS CODE" 103 I " ' C,gbt@zot I ICC ALL RIGHTS RESERVED Awsedby().(-)O[d6 Nombsx1oovco189 oc Sep V,201902 os PM(PDT)p,Ymmtto IL eAg—mt,oUICC No FYUP,,eplodmeoo.00 AYUP, (,eFod,Yo¢ebymytl,dputy,o,ANb,to,au o,sd Single—mlympymg mdortuodmg F oARItAd ANY VNAVTHORIVED REPRODUCTION REDISTRIBUTION IS A VIOLATION OF THE FEDERAL COPYRIGHT ACT AND THE LICENSE AGREEMENT, AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER CHIMNEYS AND VENTS x b OJ M C b CO .-r W OJ o b .-r L� W SA L:;� . M O. I OJ ., O PC OJ N O CO O OJ C C C M M O OJ L� CO CO C Z ry Z % N CO OJ OJ OJ — .-r L� — LN — C OJ — .-r C — OJ N M M N CO OJ L� C OJ OJ OJ N ti M .-r N M O OJ OJ M OJ OJ OJ M OJ M L` C Q LL C N N ON N W �[Ci CO O L� 1 L` M OJ C O C C I I CO CO C L` W OJ OJ M IC M C I C CO OJ CO M� OJ f Q % N O M CO CO C .-r N C OF, w CO O OJ .-r O^ O OJ M CO C M CO O OJ C ' O M_ CO �[Mi PC M OJ O_ C O Q Z '2 OJ OJ OJ L� L` L` - - OF, OF, OF, OF, _ - _ _ _ - z CO C N L� W CO I C M h .-r .-r OJ M L` OJ OJ OJ L` O L` h C h O h c0 TO N L` C OJ Z Q OF, .-r M_ M_ _ _ _ _ _ N CO_ .-r _ .-r _ .-r _ .-r C_ .-r M_ .-r C_ N OJ_ OJ_ OJ OJ_ OJ_ I _ LL C N CO O. O C O OJ C C M '2 M SJ CO . M C C O ICi I O L� SJ OJ I PC M .-r C OJ C I L� CS N I N M w OC M I. C I O ICi M CS w OC OC SJ C OC N CS OC M LLC .-r C L� OC C .-r .-r LLC SJ LLC CS CS PC WSJ C M O PC PC .z N O C W. C N < Z '2 W CO CO CO CO CO OJ W I I I I . - OJ OJ OJ W W W z pS % q I. SJ SJ I L� �� N M N L� M W O. W O O N M L� L� M d� O M dC O Z Q _ O_ O_ O_ m O L` _ _ _ _ _ O_ SJ_ _ _ C_ C_ C_ M_ _ LL C SJ SJ SJ L� SJ M O SJ L` M M ti L` CS O M ~ T G= '2 N N PC IC PC M C C O ti PC CS PC O SJ N SJ C PC SJ PC SJ C I f N f Q % N L` C M M O W CS N C O Mi N O M W N CS M C N O 4C CS W SJ W W N L� Cp OF, PC << Z '2 . C C C . . . . . . . . . Zi z 0 N M ry cWp N.. o I� O N O SB M TO M N C O CS o SJ o CE M O I C W W tS co 2 Z 2 W W... o - O O O W W W C - _ _ _ o - o - O W om LL C C CE CS W C M SJ CS W C W W L` O Q W ti L� ti .-r CS M M C L` CS ti O LLC SJ M CS LLC ti SJ ti N N SA M C CS WQ F Z f % m N L� N SJ N W L� CS OF, C PC PCO h TO 7 PC C TOO PC SA h O SJ W < TO W O ti O CS W PC I ICi << F Ur Z C PC PC M PC PC PC C C C PCz C C C z z W Z SJ O 4C O L� N L` WSIP, SA ti, NSIP, M ti WSIP, Mi SJ C SJ C 0 KK¢ Z m 2 W co 1 u� C o, I� OF,CS co co co co OF, w Q f LL C C SJ MTO W SJ W m M in C co M O C TO W M TO CS O 0 0 TO O SAW SA PCin N N m I W f % A C M SJ ti L` 4C N W < ti CS N .-r 4C O N SJ O W L` < 4C SJ M L� CS CS C M<<< C Z Z M N N N N z M M M N z M M M M M z z z Q d % C SJ L� IF, L� L� Q' SJ LLC N .ti .ti O CS SJ M N L� W Q' ID d Z W LCi C C SJ M PC M M z CS SJ C W C CS C C C C SO M IO CS CS LCi I M I I I W C C C z Q Q LL C O SJ CS .-r W CS Q' h C .-r N SJ CS h O W W C ti Q' O M L� O N z O O M CS SJ N M O O N i[Mi W O z 4 % OF, PC PC c°Jo ¢¢ TO m 6 6 6 6 6 6 6 6 6 6 Z m OF, ¢ w SIP, TO h ¢ PC SIP, N TO Q N Z 2 L� PCN W LN 4C PCTO SIP,PC z SJ PC PC O PCSA SJ LN SAz O C 4C PC C PC PC PCSA SJ N z Q LL C CS CS W Q M PCC Q OF,O O ti Q N Q m SA O W Q Q Q M N .fir Q Q Q Q Q Q Q Q Q Q Q Q Z 21 pm Z N CS 4C C M z z W Q LL N .-r .-r M O SJ O .-r L` 2M TO TO L� SJ z z L` W ti z z C CS W w M z z z ~ M CS N Q Q Q Q CS G Q Q Q Q Q Q Q Q Q Q Q Q Q i 2 CO u' u' z z z z o z z z z z z z z z z z z z SJ O C Q Q Q Q OF,C O Q Q Q Q Q Q Q Q Q Q Q Q Iy Z OF, O W W z z z z z z z z z z z z Q LL C C IC O Q Q Q Q M CS W Q Q Q Q Q Q Q Q Q Q Q Q M M C z z z z M M C z z z z z z z z z z z z ¢J¢ QJ v TOo 0 SA 0 PC0 0SA I 0 0 SA 0 PC 0 TO 0 0 0 f _ O U=� oM o 0 104 2012 INTERNATIONAL FUEL GAS CODE" " ' C,gbtOO zoo I ICC ALL RIGHTS RESERVED Awsedby().(-)O[d6 Nombsx1oovco189 oc Sep SO, 201902 OsPM(PDT) pwmmtto l»eAg—mt,oUICC No FYUP ep,odmno—oAYUP, S I ( �ep�od Uto.. bymyUb,dpPLP,o[dlembmo—Uoosd Single—mly mpymg Pod-Pyodmgp,okb,Ad ANY VNAVTHORIVED REPRODUCTION REDISTRIBUTION IS A VIOLATION OF THE PEDERALCO PYRIGHT 11 AND THE LICENSE AGREEMENT, AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER CHIMNEYS AND VENTS 8 N U N a 'o a ED f % N O N N N OJ ti w L` SIP, PC PC J O` O L` Q Z OJ CO h . C . . . . L` CO . C L` C h M L C O N N Q Q N L� O O C C N M OJ CO N h O OJ N N M CO '2 z z O_ O_ O_ M_ M_ M_ C_ C_ C_ Z ti ti ti ti ti ti ti ti ti ti ti ti ti ti LL C Q' Q' E f Q % ry .-r o CO I� CO c N O .-r o� CO co C c N co M M L� co h m LN L` o� CO co ti c Mi O Z O oX y y ry N Z Q a '^ r ¢ x ry $ 'j M M M M M M M C C M M C C C C M C L m d d d Q p -j '2 Zi Zi pOj h Zi z CO CO CO L` L` L` CO W W W L` L` Q q W < < < N 2` '2 y C = f CO .-r h O SAC CO E m W Z C% C N N N N N NB N N M M NB N M M M M NB ° m O in A d d d d d °J d d rj d N d d Z W a VI C Q Q Q Q Q OJ Q Q C OJ N Q .-r h Q Q � O a 2 H % O. m o E, m M, m— c o -. o� o -. N co -. o c N c I N O o O O z 2 m H uF Z 2 'Z� 'Z� 'Z� 'Z� 'Z� 'Z� 'Z� 'Z� c 'Z� 'Z� 'Z� u� z z z Q Q W C Q Q Q Q Q Q Q Q M Q Q Q .-r O Q Q Q K Z r N w o0 0o c PC W w W U Z O OJ L` LCi C ¢ Z Q m 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 p d z z z z z z z z z z z z z z z z z Z o! a ¢ W Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q W z Q m w SA PCw PC 0 CO I ti 0 I OJ N� 0 I PCO Z 2 U j y N Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q 3 N ¢ z z z z z z z z z z z z z z z z z W W C Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q pc Y, Y, o 0] co coo co c°Jo coo z z w p x 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 F -L Zi Zi Zi Zi Zi Zi Zi Zi Zi Zi Zi Zi Zi Zi Zi Zi Zi Q W C Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q h OJ CO .-r OJ h h OJ d 'z OJ CO d d d N N M N N M M N M M Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q tOJ Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q z z z z z z z z z z z z z z z z z J SA I w O O O O f QJ v f o 2 a 2012 INTERNATIONAL FUEL GAS CODE" 105 I " ' C,gbtOO?.ot I ICC ALL RIGHTS RESERVED Awsedby().(-)O[d6 Nombsx1oovco189 oc Sep so.2.o19 oa.os PM(PDT)pw.mmtto IL eAg—mt,oUICC No FYUP,,eplodmeoo.00 AYUP, (,eFod,Yo¢ebymytl,dputy,o,ANb,to,au o,sd Single—mlympymg mdortuodmg F oARItAd ANY VNAVTHORIVED REPRODUCTION REDISTRIBUTION IS A VIOLATION OF THE FEDERAL COPYRIGHT ACT AND THE LICENSE AGREEMENT, AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER CHIMNEYS AND VENTS N c TO M I N I� m 0 o o N oo-- - m m m - M CO ti OJ w O O NCp .� CpPC m 1 L` TO O_ OSYS_ OSYS_ OJ_ OJ_ OJ lzt- CO_ CO_ O OJhI OOJ OJ C OJ SYS L� M w N C M N OJ I, °� TO "' m 1 NO 0 a E O c°Jo co cCOo d OI m 0 0 x O CO CO OJ M TO M L` L` L` OJ CO pI N d O N L� M O M w C O N OJ h jp U F m r Z Q LL _ _ _ _ _ O_ C_ M_ POS M_ M_ d 6 O C .ti `� ^ m M O OF, N N d f OO N O CO O CO MPC . I OJ w n C C N 'N Q q U Z '2 h h h O C C C CO OF,h J CO TO M hh C O 6 C r Q d C % N LN M O O W C O L` y O -L W OJ OJ OJ OJ z 9 U .5 .-r .-r .-r .-r p0 Q Z d 6 N CO O PC TO I` 'z CO OJ C CO z Q T 9 f % M M M N w I h C O Cp I d f 0 Z '2 N E LL C PC PC PC PC A, C C C C M M 0 F -j uPOS Z Q O C L� O TO<<< .-r M Q Q Q Q a VI LL = O '2 TOOJ .-r z z z z z z z d = PC _ O Z Q Z PCM N O N ISYS N N w ti M M N O N z = N Q Q Q Q Q Q Q Q Q Q t Z O V^ f OJ h CO h z z z z z z z z z z 9 C Q Kr cr c TO 6 6 6 6 6 6 6 6 6 6 :Q LL 0 z 3 OF, TO OF, TO d F U cr OJ .ti OJ .ti L` .ti .ti z N M N N OJ .ti OJ .ti z Z Z x Q Q Q Q Q Q Q Q Q Q Q Q cr OJ d O '2 Zi Zi Zi Zi Zi Zi Zi Zi Zi Zi Zi Zi PC a Z O Q Q LL 9 C Q Q Q Q Q Q Q Q Q Q Q Q 'a i r x I� m I� 4 "= 0 Z m M o z c0 M z z y c} c E xm < < < < < < < < < < < < C Z J m m z z z z z z z z z z z zSYS g� 3 Z C Q Q Q Q Q Q Q Q Q Q Q Q V J LL NZ 0 O m Z °J CO z z z o z z z z z WN Q w m Q Q Q Q Q Q Q Q Q Q Q Q m OJ Q } f O Z Z Q C Q Q Q Q Q Q Q Q Q Q Q Q LL € z z z z z z z z z z z z cr % ¢ z z z z z z z z z z z z M Z Q C Q Q Q Q Q Q Q Q Q Q Q Q LL € z z z z z z z z z z z z J T _ T a o 0 0 0 0 0 E' = E' = P F` PC t _ E (� I PCO "2i ry P ^1i ry P Q Q 106 2012 INTERNATIONAL FUEL GAS CODE" " ' C,gbtOO zoo I ICC ALL RIGHTS RESERVED Awsedby().(-)O[d6 Nombsx 100760189 oc Sep SO,2019 oa.Os PM(PDT) pwmmtto l»eAg—mt,oUICC No FYUP ep,odmno—oAYUP, S I ( �ep�od Uto.. bymyUb,dpPLP,o[dlembmo—Uoosd Single—mly mpymg Pod-Pyodmgp,okb,Ad ANY VNAVTHORIVED REPRODUCTION REDISTRIBUTION IS A VIOLATION OF THE PEDERALCO PYRIGHT 11 AND THE LICENSE AGREEMENT, AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER CHIMNEYS AND VENTS rI o o CE ICi m -. N o b o I I w CE ICi CE I I CE Z OJ CO CO M CO N CO N L� L` Cp CO C OJ N OJ L� L` M L` OJ M OJ L` OJ M OJ O OJ Q Q N M O N OJ M OJ OJ N N C C OJ h L` C M C ry M_ M_ M_ MO_ MQ' — — Q'OO h h N pJ O h .ti O titihZC E CO M O.. OJ CO M M C C C C C C CE � M x d d N d d °J °� °� "' N I� m v m v o 0 m v m a o m o c o N U N ry ¢ LL y y C_ Q Q N Q Q d 6 O E '2 Zi z M z z M C h M C M h CO N C h O h COO CN m F % OJ 6 ¢= C CN U d ¢ Z q '2 M OJ C M M M W M c0 M C M C C C OJ M L� M OJ C c0 C M C C OJ M 6 6 C a¢ j c" z z z z z co cm0 z I� coo m m m z E yu Z ¢ LL ` N C Q Q Q Q Q Q ti Q Z m m 'L z z z z z L� N M M z CO N N M OJ M h C N M OJ M C C z n m T ¢ C m Z C M CO d' M OJ L� CO o NB N N N N N N N N M M N N M M M M E LL x Q Q Q Q Q Q Q m d d - - N d d 0 u 2'z' z z z z u� z z co u� z z c0 c0 c0 z z a 0 Z N Z ¢ LL C Q Q Q Q Q O Q Q ti Q Q 0 - Q Q f % O C . N C O M OJ OJ O C OJ M h L` 2 OJ CO OJ OJ L� O OJ C M OJ L` M O a O Z Z '2 yy ry Q Q Q Q Q Q Q Q M Q Q Q Q Q Q Q N Z a r Z C Q Q Q Q Q Q Q Q Q Q QIs, O Q Q Q F LL a € z z z z z z z z- z z z- °J z z z f % O CO h M ti L` L` OJ M OJ O M O CO C ? w U Z M C M N CO C M L� CO M O OJ L` C W Z m Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q ¢ ¢— p b d m z z z z z z z z z z z z z z z z z a Z C Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q ¢ LL W F % Is, N N M o N Z 0 U 2 W 4 N m Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q ¢ N ou } ¢ O O Z Q] Q0 W Z 4N'i 40'i h C CO C CO C Zi z r m Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q VI O Z C Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q LL ~ OJ h OJ CO M ti w. h N L Q 'z w h Q 'z Q 'z Q 'z ZSASA SAN M N SAM M N M M x Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q M Z C Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q LL ¢J¢ QJ v f 2 �4 w 2 a 2012 INTERNATIONAL FUEL GAS CODE" 107 I " ' C,gbtOOC.ot I ICC ALL RIGHTS RESERVED Awsedby().(-)O[d6 Nombsx1oovco189 oc Sep so.C.o19 oa.os PM(PDT)p,Ymmtto IL eAg—mt,oUICC No FYUP,,eploddtoo.00 AYUP, (,eFod,Yo¢ebymytl,dputy,o,ANb,to,au o,sd Single—mlympymg mdortuodmg F oARItAd ANY VNAVTHORIVED REPRODUCTION REDISTRIBUTION IS A VIOLATION OF THE FEDERAL COPYRIGHT ACT AND THE LICENSE AGREEMENT, AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER CHIMNEYS AND VENTS F x o 0 CE N 0 0 SA 0 c 0 0 o o N o o l Z m m m ry q 0 W o CO mi m CO N o M o L� c C c OJ u� C m OJ O M I— 1 L` CO_ CO_ O_ O_ OJ_ OJ_ OJ_ OJ_ ti Z Q LL C OJ O O OJ OJ O CO TO CO L` W fTOO C TO TO C O O w TO O O E ZS7, coo 0 0 O q PC N o .ti m Cp m N o pJ Q,' m O OJ PC M c OJ h Q h L Z _ _ _ _ O_ z C_ M_ M z OF, N Q ¢' N E '2 M C h CO z M M C h CO z N CO CO ti h w ti M N M OJ 'N ¢ TO N OJ L� C O M OJ . M O ICi Z h � C C C C o � � c ~ W OJ O ¢' ¢' M O OJ L� OJ M Q Q Q OJ O -L OJ OJ SA OJ w C_ OF, CO O OJ ¢' ¢' OJ M h Q Q Q N LL t 0 N 4; '2 C OM M C Zi z M O TO M Zi z z 9 T = F f M O— O OF, N~ h N O h O OJ 0 C m Z '2 C M M M M N C C C M M M E LL % m M MO Q Q Q M Q Q Q Q Q O O m v. L Z -L L� ml= z z z W z z z z z O LL N C_ O O h O d d d `� d d d d d = O N N ti N = 2 f % m N O. OJ O O C M N w O O OJ L` OJ L ? Z N CO N N N .ti M M N N z A N (" Q Q Q Q Q Q Q Q Q Q Q Z O _ ^ z z z z z z z z z z z d u ¢ N � -. z z z z z z z z z z z a co N m y o d m W U 2 22 o m co Z Till. o m z c N Q Q Q Q Q Q Q Q Q Q Q Q ¢ J W b K a ¢ a C Q Q Q Q Q Q Q Q Q Q Q Q Q LL _ w s 2 x o Mi N M TO O m 6 0 CO 0 C o M N Q' Q' y O Z z z z E y N Q Q Q Q Q Q Q Q Q Q Q Q J Q N OJ � zzzzzzzzzzz z ; N J LL C Q Q Q Q Q Q Q Q Q Q Q Q ¢ � zzzzzzzzzzz z 3 % ._. ¢ ¢ ¢ ._. ¢ ¢ ¢ ¢ w J Z 22 W 1 c0 z z z o z z z z 1 c� % Q Q Q Q Q Q Q Q Q Q Q Q ? OJ N O Zi Zi Zi Zi Zi Zi Zi Zi Zi Zi Zi Zi -L Q C Q Q Q Q Q Q Q Q Q Q Q Q LL zzzzzzzzzzz z Z 2 z z z z z z z z z z z M Z Q C Q Q Q Q Q Q Q Q Q Q Q Q LL zzzzzzzzzzz z J � E¢ E c E¢ E c r ` w 2 108 2012 INTERNATIONAL FUEL GAS CODE" " ' C,gbtOO zoo I ICC ALL RIGHTS RESERVED Awsedby().(-)O[d6 Nombsx 1007e0189 oe Sep SO,2019 oa.Os PM(PDT) pwmmtto l»eAg—mt,oUICC No FYUP ep,odmno—oAYUP, S I ( �ep�od Uto.. bymyUb,dpPLP,o[dlembmo—Uoosd Single—mly mpymg Pod-Pyodmgp,okb,Ad ANY VNAVTHORIVED REPRODUCTION REDISTRIBUTION IS A VIOLATION OF THE PEDERALCO PYRIGHT 11 AND THE LICENSE AGREEMENT, AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER CHIMNEYS AND VENTS Number of Appliances I Single TABLE 504.2(5) SINGLE -WALL METAL PIPE OR TYPE B ASBESTOS CEMENT VENT I Appliance Typel Draft hood equipped Appliance Vent Connectionj Connected directly to pipe or vent HEIGHT (H) (feet) LATERAL (L) (fee0 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 2012 INTERNATIONAL FUEL GAS CODE" 109 I " ' C,gbtOO?.ot I ICC ALL RIGHTS RESERVED Awsed by().(-)O,d6 Nombsx 100760189 oc Sep so.2.o1902Os PM(PDT)pwmm, bl»eAffiee^mt,oUICC No FYUP,,eploddtoo.00 AYUP, (,eFod,Yo¢ebymytl,dputy,o,ANb,to,au o,sd Single mlym,ymg mdortuodmgFokbad ANY VNAVTHORIVED REPRODUCTION REDISTRIBUTION IS A VIOLATION OF THE FEDERAL COPYRIGHT ACT AND THE LICENSE AGREEMENT, AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER CHIMNEYS AND VENTS Number of Appliances Single TABLE 504.2(6) 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 38 50 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 26oF 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 16oF 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 4°F Local 99% Winter Design Temperature: -10 to 4°F 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 of or Lower Local 99% Winter Design Temperature: -11oF or Lower Not recommended for any vent configurations For SI °C = (IF - 32)118, 1 inch = 25 4 mm, 1 foot= 304 8 mm, 1 British thermal unit per hour= 0 2931 W Note: See Figure 13-19 in Appendix B for a map showing local 99 percent winter design temperatures in the United States 110 2012 INTERNATIONAL FUEL GAS CODE" ' C,gbt@ ON I ICC ALL RIGHTS RESERVED Awsed by ().(-)O[d6 Nombsx 100760189 oc Sep SO,2019 oa. Os PM(PDT) p—Potty l»eAge mt,oUICC No FYUP ep,odw.noa oAYUP, S I ( " olY,o.. byzoyUbdparty.oPAembmoo UoFPd Single—mly mpymg PodoehxodmgFokb,Ad ANY VNAUTHORIVED REPRODUCTION REDISTRIBUTION IS A VIOLATION OF THE FEDORA, COPYRIGHT 11 AND THE LICENSE AGREEMENT, AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER CHIMNEYS AND VENTS Number of Appliances Two or more TABLE 504.3(1) TYPE B DOUBLE -WALL VENT Appliance Type Category I Appliance Vent Connection Type B double -wall connector VENT CONNECTOR CAPACITY TYPE B DOUBLE -WALL VENT AND 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 (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 22 37 26 35 66 46 46 106 72 58 164 104 77 225 142 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 fill 204 91 810 266 112 1,038 341 135 1,285 417 100 2 19 83 44 30 161 79 42 267 123 55 447 178 75 619 242 94 822 316 1 115 11,0541 405 139 1,306 494 3 20 84 1 50 31 163 89 1 44 1 272 138 57 452 109 78 1 627 272I 18341 55 1 118 11,0691 455 142 1,327 555 COMMON VENT CAPACITY 4 5 6 7 8 9 10 VENT HEIGHT COMBINED APPLIANCE INPUT RATING IN THOUSANDS OF BTU/H (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 AT6 92 81 65 140 116 103 204 161 147 309 248 200 404 314 260 547 434 335 672 108 101 90 73 155 129 114 224 178 163 339 275 223 444 348 290 602 480 378 740 510 110 97 79 169 141 124 243 194 178 367 299 242 477 377 315 649 522 405 800 515 125 112 91 195 164 144 283 228 206 427 352 280 556 444 365 753 612 465 924 fFANNAT 520 136 123 102 215 183 160 314 255 229 475 394 310 621 499 405 842 688 523 1,035030 152 138 118 244 210 185 361 297 266 547 459 360 720 585 470 979 808 605 1,209050 167 153 134 279 244 214 421 353 310 641 547 423 854 706 550 1,164 977 705 1,451 60100 175 163 NA 311 277 NA 489 421 NA 751 658 479 1,025 873 625 1,408 1,215 800 1784 75 (continued) 2012 INTERNATIONAL FUEL GAS CODE" 111 I " ' C,gbtOO?.ot I ICC ALL RIGHTS RESERVED Awsedby().(-)O,d6 Nombsx 100760189 oc Sep so.2.o19 oa.os PM(PDT)p—Pot to IL eAg—mt,oUICC No FYUP,,eploddtoo.00 AYUP, (,eFod,Yo¢ebymytl,dputy,o,ANb,to,au o,sd Single —ooly mpymg andortuodmg F oARItAd ANY VNAVTHORIVED REPRODUCTION ORDISIRIBVTION IS A VIOLATION OF THE FEDERAL COPYRIGHT ACT AND THE LICENSE AGREEMENT, AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER CHIMNEYS AND VENTS Number of Appliances Two or more TABLE 504.3(1)-continued TYPE B DOUBLE -WALL VENT Appliance Type Category I Appliance Vent Connection Type B double -wall connector VENT CONNECTOR CAPACITY TYPE B DOUBLE -WALL VENT AND DIAMETER-(D) inches 12 14 1 16 1 18 1 20 1 22 24 VENT CONNECTOR APPLIANCE INPUT RATING LIMITS IN THOUSANDS OF BTUM HEIGHT (H) RISE (R) FAN NAT FAN NAT FAN NAT FAN NAT FAN NAT FAN NAT FAN NAT (fee0 (feet) Min Max Max Min Max Max Min Max Max Min Max Max Min Max Max Min Max Max Min Max Max 2 174 1 764 496 223 1,046 653 281 1,371 853 346 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 1,072 313 1,902 1,3901 380 2,434 1,770 478 3,018 2,180 568 3,665 2,640 669 4,373 3,130 2 196 870 536 249 1,195 730 311 1,570 955 379 2,049 1,2051 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 1,0951 792 263 1,509 1,118 325 1,989 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 1,978 1,320 416 2,579 1,665 523 3,197 2,060 624 3,881 2,490 734 4,631 2,960 6 1 228 1,181 856 286 1 1,6321 1,222 351 1 2,157 1,610 424 2,796 2,025 533 13,470 1 2,5101 634 4,2161 3,0301 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 1,3951 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 2,287 1,695 450 2,984 2,1451 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 1,3161 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 1 273 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 1,561d12 281 2,139 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 1,631 290 2,242 1,575 369 2,951 2,055 461 3,893 2,605 594 4,808 3,208 724 5,826 3,885 867 6,943 4,620 2 192 1,923254 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 1,984263 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 2,035 272 2,811 1,642 346 3,714 2,1501 426 4,968 2,700 539 6,143 3,350 654 7,453 4,070 786 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 BTUM (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 1,284 990 815 1,735 1,336 1,065 2,253 1,732 1,345 2,838 2,180 1,660 3,488 2,677 1,970 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 3,162 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 3,444 2,665 2,030 4,241 3,278 2,400 5,123 3,957 2,920 15 1,247 986 825 1,794 1,410 1,158 2,440 1,910 1,510 3,184 2,484 1,910 4,026 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 4,548 3,552 2,640 5,573 4,352 3,120 6,749 5,261 3,800 30 1,658 1,327 1,025 2,373 1,892 1,525 3,220 2,558 1,990 4,197 3,326 2,520 5,303 4,193 3,110 6,539 5,157 3,680 7,940 6,247 4,480 50 2,024 1,640 1,280 2,911 2,347 1,863 3,964 3,183 2,430 5,184 4,149 3,075 6,567 5,240 3,800 8,116 6,458 4,500 9,837 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 7,200 For SI 1 inch = 25 4 mm, 1 foot = 304 8 mm, 1 British thermal unit per hour= 0 2931 W 112 2012 INTERNATIONAL FUEL GAS CODE" ' C,gbt@ON I ICC ALL RIGHTS RESERVED A-P-dby().(-)O,d6 Nombsx/00760/89 oc SIP SO,2019 oa.Os PM(PDT)p-Potty l»eAg-mt,oUICC No FYUP LodU:oaoAYUP, S I ( " odA,o.. byzoyUb,dparty.oPAxmbmoo Uoosd Single-mly mpymg Podoetwodmg plokb,Ad ANY VNAVTHORIVED REPRODUCTION ORDISIRIBVTION IS A VIOLATION OF THE FEDERAL COPYRIGHT 11 AND THE LICENSE AGREEMENT. AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER CHIMNEYS AND VENTS Number of Appliances I Two or more TABLE 504.3(2) 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 NAT FAN NAT FAN NAT FAN NAT FAN NAT FAN NAT FAN NAT FAN NAT (feeU (feeU 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 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 NA 50 119 121 77 182 186 110 240 253 150 302 335 196 372 429 252 506 534 308 10INA NA 33 84 85 59 124 134 91 189 203 132 248 278 183 311 369 235 381 473 302 517 589 368 NA 36 89 91 67 129 144 102 197 217 148 257 299 203 320 398 265 391 511 339 528 637 413 NA 29 79 87 52 116 138 81 177 214 116 238 291 158 312 380 208 397 482 266 556 596 324 15 NA 34 83 94 62 121 150 97 185 230 138 246 314 189 321 411 248 407 522 317 568 646 387 NA 39 87 100 70 127 160 109 193 243 157 255 333 215 331 438 281 418 557 360 579 690 437 56 30 78 97 54 115 152 84 175 238 120 233 325 165 306 425 217 390 538 276 546 664 336 20 59 36 82 103 64 120 163 101 182 252 144 243 346 197 317 453 259 400 574 331 558 709 403 62 40 87 107 72 125 172 113 190 264 164 252 363 223 326 476 294 412 607 375 570 750 457 60 31 77 110 57 112 175 89 169 278 129 226 380 175 296 497 230 378 630 294 528 779 358 301 62 37 81 115 67 117 185 106 177 290 152 236 397 208 307 521 274 389 662 349 541 819 425 64 42 85 119 76 122 193 120 185 300 172 244 412 235 316 542 309 400 690 394 555 855 482 69 34 75 128 60 109 207 96 162 336 137 217 460 188 284 604 245 364 768 314 507 951 384 50 71 40 79 132 72 114 215 113 170 345 164 226 473 223 294 623 293 376 793 375 520 983 458 72 45 83 136 82 119 221 123 178 353 186 235 486 252 304 640 331 387 816 423 535 1,013 518 79 34 71 150 61 104 249 98 153 424 140 205 585 192 269 774 249 345 993 321 476 1,236 393 100 2 48 80 41 75 153 73 110 255 115 160 428 167 212 593 228 279 788 299 358 1,011 383 490 1,259 469 3 51 81 46 79 157 85 114 260 129 168 433 190 222 603 256 289 801 339 368 1,027 431 506 1,2801 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) (feeU 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 26 30 145 132 113 236 202 180 350 286 257 533 446 349 703 570 459 958 790 M1,7411,459 23 50 159 145 128 268 233 208 406 337 296 622 529 410 833 686 535 1,139 954 38 100 166 153 NA 297 263 NA 469 398 NA 726 633 464 999 846 606 1,378 1,185948 For SI 1 inch= 25 4 mm, 1 foot = 304 8 mm, 1 British thermal unit per hour= 0 2931 W 2012 INTERNATIONAL FUEL GAS CODE" 113 I " ' C,gbtOO?.ot I ICC ALL RIGHTS RESERVED A-P—dby().(-)O,d6 Nombsxlowcole9 oc SIP V,2o19 oa.ws PM(PDT)p—Pot to IL eAg—mt,oUICC No FYUP,,ep,oddtoo.00 AYUP, (,,Fod,Yo¢tbymytl,dputy,o,ANb,to,au o,sd Single —oolym,ymg andortuodmgFokbad ANY VNAVTHORIVED REPRODUCTION ORDISIRIBVTION IS A VIOLATION OF THE FEDERAL COPYRIGHT ACT AND THE LICENSE AGREEMENT, AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER CHIMNEYS AND VENTS Number of Appliances Two or more TABLE 504.3(3) 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 1 6 1 7 1 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 (feeU (feet) Min FMa. 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 98 437 173 123 584 239 150 752 180 943 397 20 2 25 58 31 39 114 56 55 190 91 73 335 138 101 467 199 126 625 270 153 805 184 1,011 452 3 26 63 35 123 65 57 204 104 75 353 157 104 493 222 129 661 301 156 851 187 1,067 505 1 24 54 25 111 48 52 192 82 69 357 127 96 504 187 119 680 255 145 883 175 1,115 432 30 2 25 60 32 122 58 54 208 95 72 376 145 99 531 209 122 715 287 149 928 ]18 179 1,171 484 3 26 64 36 131 66 56 221 107 74 392 163 101 554 233 125 746 317 152 968 182 1,220 535 1 23 51 25 116 51 51 209 89 67 405 143 92 582 213 115 798 294 140 1,049168 1,334 506 50 2 24 59 32 127 61 53 225 102 70 421 161 95 604 235 118 827 326 143 1,085172 1,379 558 3 26 64 36 135 69 55 237 115 72 435 80 98 624 260 121 854 357 147 1,118176 1,421 fill 1 23 46 24 108 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 31 120 60 51 224 105 67 444 174 92 660 260 113 933 368 138 1,253 497 165 1,626 651 3 25 59 351 130 68 53 237 118 69 458 193 1 94 679 285 116 956 1 399 1 141 11,2821 540 1 169 1,6611 705 COMMON VENT CAPACITY MINIMUM INTERNAL AREA OF MASONRY CHIMNEY FLUE (square inches) 12 19 28 1 38 1 50 1 63 78 113 VENT HEIGHT COMBINED APPLIANCE INPUT RATING IN THOUSANDS OF BTUIH (H) (feeU FAN ,FAN FAN +NAT NAT +NAT FAN +FAN FAN +NAT NAT +NAT FAN +FAN +NAN FAINANA AN 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 74 25 NA 119 46 NA 1A 257 103 NA 351 143 NA 458 188 NA 582 246 1,041 853 NA 8 NA 80 28 NA 130 53 NA 1A 279 119 NA 384 163 NA 501 218 724 636 278 1,144 937 408 10 NA 84 31 NA 138 56 NA 2A 299 131 NA 409 177 606 538 236 776 686 302 1,226 1,010 454 15 NA NA 36 NA 152 67 NA 2NA 334 152 523 467 212 682 fill 283 874 781 365 1,374 1,156 546 20 NA NA 41 NA NA 75 NA 2NA 368 172 565 508 243 742 668 325 955 858 419 1,513 1,286 648 30 NA NA NA NA NA NA NA 2NA 404 198 615 564 278 816 747 381 1,062 969 496 1,702 1,473 749 50 NA NA NA NA NA NA NA NNA NA NA NA 620 328 879 831 461 1,165 li 1,0891 606 11,905 11,6921 922 100 NA NA NA NA NA NA NA I NA I NA I NA I NA NA NA NA 348 NA NA 1 499 NA I NA 1 669 12,053 11,92111,058 For SI 1 inch= 25 4 mm, 1 square inch= 645 16 mm2, 1 foot = 304 8 Pont, 1 British thermal unit per hour= 0 2931 W 114 2012 INTERNATIONAL FUEL GAS CODE" ' C,gbt@ ON I ICC ALL RIGHTS RESERVED Awsed by ().(-)O,d6 Nombsx/00760/89 oc Sep SO,2019 oa. Os PM(PDT)p—Pot to l»eAg—mt,oUICC No FYUP ep,od U:oa oAYUP, r I ( " odA,o.. byzoy Ub,d,PLP,o[dlembmoo Uoosd Single—mly mpymg Podoehuodmg plokb,Ad ANY VNAVTHORIVED REPRODUCTION ORDISIRIBVTION IS A VIOLATION OF THE FED ERAL CO PYFIGHT 11 AND THE LICENSE AGREEMENT. AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER CHIMNEYS AND VENTS Number of Appliances I Two or more TABLE 504.3(4) MASONRY CHIMNEY Appliance Type Category I Appliance Vent Connection I 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 BTUM 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 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 90 205 325 136 274 455 195 355 610 266 450 787 348 627 986 443 3 NA NA 35 96 119 64 140 199 103 213 343 154 282 481 219 365 644 298 461 831 391 639 1,0421 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 89 182 410 151 243 617 232 315 875 328 402 1,181 444 560 1,537 580 100 2 NA NA 3) 88 115 59 127 215 102 190 425 169 253 636 254 326 899 361 415 1,210 488 575 1,570 634 3 NA NA 34 93 124 67 133 228 115 199 438 188 262 654 279 337 921 392 427 1,238 529 1 589 11,6041 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 BTUM (H) (feeU 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 N T NAT +NAT FAN +FAN FAN +NAT NAT +NAT 6 NA NA 25 NA 118 45 NA 176 71 NA 255 102 NA 348 142 NA 455 187 245 NA8 NA NA 28 NA 128 52 NA 190 81 NA 276 118 NA 380 162 NA 497 217 277 1,136 928 405 10 NA NA 31 NA 136 56 NA 205 89 NA 295 129 NA 405 175 NA 532 234 300 IT 1,216 1,000 450 15 NA NA 36 NA NA 66 NA 230 105 NA 335 150 NA 400 210 677 602 280 2 360 1,359 1,139 540 NA NA NA NA 74 NA 247 120 NA 362 170 NA 503 240 765 661 321 415 1,495 1,264 640 [ItNA NA NA NA NA NA NA NA 135 NA 398 195 NA 558 275 808 739 377 7 490 1,682 1,447 740 NA NA NA NA NA NA NA NA NA NA NA NA 612 325 NA 821 456 6 600 1,879 1,672 910 NA NA NA NA NA NA NA NA 1 NA NA NA NA NA NA NA NA 494 NA I NA 1 663 12,00611,885 1,046 For SI 1 inch = 25 4 mm, 1 square inch = 645 16 mm2, 1 foot = 304 8 mm, 1 British thermal unit per hour= 0 2931 W 2012 INTERNATIONAL FUEL GAS CODE" 115 I " ' C,gbtOO?.ot I ICC ALL RIGHTS RESERVED A-P—dby().(-)O,d6 Nombsxlowcole9 oc SIP V,2o19 oa.ws PM(PDT)p—Pot to IL eAg—mt,oUICC No FYUP,,ep,oddtoo.00 AYUP, (,,Fod,Yo¢tbymytl,dputy,o,ANb,to,au o,sd Single —oolym,ymg andortuodmgFokbad ANY VNAVTHORIVED REPRODUCTION ORDISIRIBVTION 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(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 1 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 (fee0 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 Pont, 1 foot = 304 8 mm, 1 British thermal unit per hour= 0 2931 W 116 2012 INTERNATIONAL FUEL GAS CODE" C,gbt@ ON I ICC ALL RIGHTS RESERVED Awsed by ().(-)O,d6 Nombsx 100760189 oc Sep SO,2019 oa. Os PM(PDT)p—Potty IL eAg—mt,oUICC No FYUP ep,odw.noa oAYUP, TWIRTIir"TITTIT"llilklig od A,.. byzoy Ub,dparty.oPAembmoo Uoosd Single—mly mpymg Podoetwodmg plokb,Ad ANY VNAVTHORIVED REPRODUCTION ORDISIRIBVTION IS A VIOLATION OF THE FED ERAL COPYRIGHT 11 AND THE LICENSE AGREEMENT. AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER CHIMNEYS AND VENTS TABLE 504.3(6a) EXTERIOR MASONRY CHIMNEY Nun' r of Appliances Two or more Appliance Type NAT, NAT Appliance Type B Vent doublewall 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 Numher of Appliances Two or more Appliance Type NAT+ NAT Appliance Type B Vent doublewall 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) 1 12 1 19 1 28 1 38 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 NA NA NA NA NA NA NA 27 to 36°F Local 99% Winter Design Temperature: 27 to 36oF 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 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 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 NA NA NA NA NA NA NA 4°F or Lower Local 99% Winter Design Temperature: 4°F or Lower Not recommended for any vent configurations For SI °C= (°F- 32)118, 1 inch = 25 4 mm, 1 square inch = 645 16 mm', 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 2012 INTERNATIONAL FUEL GAS CODE" 117 I " ' Copy,gbtOO?.ot I ICC ALL RIGHTS RESERVED Awsedby().(-)O[d6Nombsx 100760189 oc Sep so.2.o19 oa.Os To(PDT)p—Pottal»eAgemt,oUICC No FYUPep,oddtoaoAYUP, (,eFod,Yo¢ebymytl,dputy,o,ANb,to,au o,sd Single —ooly mpymg Pod,PPyPPmg Fokbad ANY VNAUTHORIVED REPRODUCTION REDISTRIBUTION 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(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 1 (feet) 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 19 28 38 50 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 334 398 393 334 0 50 NA NA NA NA NA 714 707 579 100 NA I NA I NA I NA I NA I NA NA 1,600 27 to 36oF Local 99% Winter Design Temperature: 27 to 36oF 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 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) 12 19 1 28 1 38 50 63 78 113 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 16oF Local 99% Winter Design Temperature: 5 to 16oF 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 1 NA NA I NA I NA I NA I NA I NA 1,833 -10 to 4°F Local 99% Winter Design Temperature: -10 to 4°F 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 NA NA NA NA NA NA NA -11°F or Lower Local 99% Winter Design Temperature: -11°F or Lower Not recommended for any vent configurations For SI °C= (°F - 32)118, 1 inch = 25 4 Pont, 1 square inch= 645 16 Pont', 1 foot= 304 8 Pont, 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 118 2012 INTERNATIONAL FUEL GAS CODE" " ' C,gbt@ ON I ICC ALL RIGHTS RESERVED Awsed by ().(-)O[d6Nombsx 1007601e9 oc Sep SO,2019 oa.Os PM(PDT)p—Potty l»eAg—mt,oUICC No FYUP ep,odw.noa oAYUP, S I ( lig odUt.. byzoyUb,dparty.oPAembmoo Uoosd Single—mly mpymg PodoehxodmgFokb,Ad ANY VNAUTHORIVED REPRODUCTION ORDISIRIBUTION IS A VIOLATION OF THE FEDERAL COPYRIGHT 11 AND THE LICENSE AGREEMENT. AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER CHAPTER 6 SPECIFIC APPLIANCES 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 and shall be installed in accor- dance with the manufacturer's installation instructions. Man- ually 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 installation 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, shall be installed in accordance with the manufacturer's installation 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 installation instruc- tions, shall be tested in accordance with ANSI Z21.88 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 installation instructions. SECTION 607 (IFGC) COMMERCIAL -INDUSTRIAL INCINERATORS 607.1 Incinerators, commercial -industrial. Commercial - 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 installation 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 air 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. 608.6 Access. Vented wall furnaces shall be provided with access for cleaning of heating surfaces, removal of burners, 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. 2012 INTERNATIONAL FUEL GAS CODE" 119 I II I Copy,gbtOO?.o„ ICC ALL RIGHTS RESERVED A-P—dby().(-)O,d,,Nmmbsxlow6ole9 oc SIP V,2o19 oa.ws PM(PDT)p—Pot to IL eAgemt,oUICC No FYUPep,oddtoaoAYUP, (,,Fod,Yo¢tbymytl,dputy,o,ANb,to,au o,sd Single —oPIA opymg PodortuodmgFokbad ANY VNAVTHORIVED REPRODUCTION REDISTRIBUTION IS A VIOLATION OF THE FEDERAL COPYRIGHT ACT AND THE LICENSE AGREEMENT, AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER SPECIFIC APPLIANCES 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 installation 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 corners. The register of a floor furnace with a horizontal warm -air outlet shall not be placed closer than 6 inches (152 mm) to the nearest wall. A distance of at least 18 inches (457 mm) from two adjoining sides of the floor furnace register to walls shall be provided 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 corner. 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-inch (152 mm) clearance from the grade level; except where the lower 6-inch (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) minimum 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 which 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 buildings 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 akin accordance with Section 304. SECTION 610 (IFGC) DUCTFURNACES 610.1 General. Duct furnaces shall be tested in accordance with ANSI Z83.8 or UL 795 and shall be installed in accor- dance with the manufacturer's installation 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 air shall also 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 air blower. SECTION 611 (IFGC) NONRECIRCULATING DIRECT -FIRED INDUSTRIAL AIR HEATERS 611.1 General. Nonrecirculating direct -bred 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 -bred industrial air heaters shall not be used to supply any area containing sleeping quarters. Nonrecirculating directfiredindustrial air heaters shall be installed only in industrial or commercial occupancies. Nonrecirculating direct -bred 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 directfiredindustrial air heater, including combustion air, shall be ducted directly from the outdoors. 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 train 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 120 2012 INTERNATIONAL FUEL GAS CODE" C,gbt@ ON I ICC ALL RIGHTS RESERVED A-P—d by ().(-)O,d,,Nmmbsx/00760/89 oc SIP SO, 201902 Os PM(PDT)p—Pot to IL eAg—mt,oUICC No FYUP ep,odw.noa oAYUP, S I ( lig odUt.. byanytlu,dparty.oPANb�toc UoFsd Single—mly mpymgand-PyodmgFokb,Ad ANY VNAVTHORIVED REPRODUCTION REDISTRIBUTION IS A VIOLATION OF THE ,EDORD, COPYRIGHT 11 AND THE LICENSE AGREEMENT, AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER SPECIFIC APPLIANCES line shall not be required to be provided on a valve train com- ponent equipped with a listed vent limiter. 611.7 Relief opening. The design of the installation shall include provisions to permit 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 determined by approved engineering meth- ods. Relief openings shall be permitted to be louvers or coun- terbalanced gravity dampers. Motorized dampers or closable louvers shall be permitted to be used, provided they are veri- fied to be in their full open position prior to main burner oper- ation. 611.8 Access. Nonrecirculating direct -bred 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-firedindustrial airheat- ers shall be listed to ANSI Z83.18 and shall be installed in accordance with the manufacturer's installation instructions. 612.2 Location. Recirculating directfiredindustrial air heaters shall be installed only in industrial and commercial occupancies. Recirculating directfiredair heaters shall not serve any area containing sleeping quarters. Recirculating direct -fired industrial airheaters 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 permitted 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. Air 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 m3 per min per kW) of rated input of the heater. If a separate means is used to supply ventilation air, an interlock shall be provided so as to lock out the main burner operation until the mechanical means is veri- fied. Where outside air 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 train 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 train component equipped with a listed vent limiter. 612.7 Relief opening. The design of the installation shall include adequate provision to permit 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 determined by approved engineering methods. Relief openings shall be permitted to be louvers or counterbalanced gravity dampers. Motorized dampers or closable louvers shall be permitted to be used, provided they are 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 or ANSI Z21.5.2 and shall be installed in accordance with the manufacturer's installation instructions. SECTION 614 (IFGC) CLOTHES DRYER EXHAUST [M] 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, shall convey the moisture and any products of combustion to the outside of the building. [M] 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 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 shall be provided with a cleanout or other means for cleaning the interior of the duct. 2012 INTERNATIONAL FUEL GAS CODE" 121 I I I I Copy,ght @ zoI I ICC ALL RIGHTS RESERVED Awsed by ().(-)O,d,,Nombsx 100760189 oc Sep so.2.o19 oa. ws PM(PDT) p—Potto l»eAge mt,oUICC No FYUP ep,oddtoa oAYUP, (,,Fod,Yo¢ebymytl,dputy,o,ANb,to,au o,sd Single —oPIA opymg PodortuodmgFokbad ANY VNAVTHORIVED REPRODUCTION REDISTRIBUTION IS A VIOLATION OF THE FEDERAL COPYRIGHT ACT AND THE LICENSE AGREEMENT, AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER SPECIFIC APPLIANCES [M] 614.4 Exhaust installation. Exhaust ducts for clothes dryers shall terminate 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. [M] 614.5 Makeup air. Installations exhausting more than 200 cfm (0.09 in /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] 614.6 Domestic clothes dryer exhaust ducts. Exhaust ducts for domestic clothes dryers shall conform to the requirements of Sections 614.6.1 through 614.6.7. [M] 614.6.1 Material and size. Exhaust ducts shall have a smooth interior finish and shall be constructed of metal a minimum 0.016 inch (0.4 min) thick. The exhaust duct size shall be 4 inches (102 mm) nominal in diameter. [M] 614.6.2 Duct installation. Exhaust ducts shall be sup- ported at 4-foot (1219 min) intervals and secured in place. The insert 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 into the inside of the duct. [M] 614.6.3 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 P/, inches (32 min) between the duct and the finished face of the framing member. Protective shield plates shall be constructed of steel, shall have a minimum thickness of 0.062 inch (1.6 min) and shall extend a minimum of 2 inches (51 mm) above sole plates and below top plates. [M] 614.6.4 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 a maximum of 8 feet (2438 mm) in length, and shall not be concealed within construction. [M] 614.6.5 Duct length. The maximum allowable exhaust duct length shall be determined by one of the methods specified in Section 614.6.5.1 or 614.6.5.2. [M] 614.6.5.1 Specified length. The maximum length of the exhaust duct shall be 35 feet (10 668 min) 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 614.6.5.1. [M] 614.6.5.2 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 614.6.5.1 shall be utilized. [M] 614.6.6 Length identification. Where the exhaust duct is concealed within the building construction, 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 min) of the exhaust duct connection. [M] 614.6.7 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] 614.7 Commercial clothes dryers. The installation of dryer exhaust ducts serving Type 2 clothes dryers shall com- ply with the appliance manufacturer's installation instruc- tions. Exhaust fan motors installed in exhaust systems shall be located outside 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 min- imum clearance of 6 inches (152 min) to combustible materi- als. [M] TABLE 614.6.5.1 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 min, 1 foot — 304 8 min, 1 degree — 0 01745 rad 122 2012 INTERNATIONAL FUEL GAS CODE" Co,gbt@ ON I ICC ALL RIGHTS RESERVED Awsed by ().(-)O[d6 Nombsx 100760189 oc Sep SO,2019 oa. Os To (PDT) p—Potty l»eAge mt,oUICC No FYUP ep,odw.noa oAYUP, S I ([ N ,Fod,Yo,,bymytl,dputy,o,Abau �to,o,sd Single—mlym,ymgand-Pyo,k,FokbUd ANY VNAVTHORIVED REPRODUCTION REDISTRIBUTION IS A VIOLATION OF THE ,EDORD, COPYRIGHT 11 AND THE LICENSE AGREEMENT, AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER SPECIFIC APPLIANCES [M] 614.8 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-resistant 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 installation 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- bustion 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 back- ground and the wording shall be in letters not less than (/4 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 which will limit room tempera- ture to 194°F (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. 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 HARM- FUL 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 '/q 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 installation instructions and NBPA 37. Stationary engine generator assemblies shall meet the requirements of UL 2200. 2012 INTERNATIONAL FUEL GAS CODE" 123 I II I C,gbtOO?.ot I ICC ALL RIGHTS RESERVED Awsedby().(-)O,d,,Nombsx1oovco189 oc SIP so.2.o19 oa.ws PM(PDT)p—Pot to IL eAg—mt,oUICC No FYUPep,oddtoaoAYUP, (,,Fod,Yo¢ebymytl,dputy,o,ANb,to,au o,sd Single —ooly, mpymg Pod-Pyo,k,Fokbad ANY VNAVTHORIVED REPRODUCTION REDISTRIBUTION IS A VIOLATION OF THE FEDERAL COPYRIGHT ACT AND THE LICENSE AGREEMENT, AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER SPECIFIC APPLIANCES E* 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 and shall be installed in accordance with the manufacturer's installation 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 or UL 795 and shall be installed in accordance with the manufacturer's installation instructions. 618.2 Forced -air furnaces. The minimum unobstructed total area of the outside and return air ducts or openings to a forced -air warm -air furnace shall be not less than 2 square inches for each 1,000 Btu/h (4402 mm'/W) output rating capacity of the furnace and not less than that specified in the furnace manufacturer's installation instructions. The mini- mum unobstructed total area of supply ducts from a forced - air warm -air furnace shall be not less than 2 square inches for each 1,000 Btu/h (4402 mm'/W) output rating capacity of the furnace and not less than that specified in the furnace manu- facturer's installation instructions. Exception: The total area of the supply air ducts and out- side and return air ducts shall not be required to be larger than the minimum size required by the furnace manufac- turer's installation instructions. 618.3 Dampers. Volume dampers shall not be placed in the air inlet to a furnace in a manner that will reduce the required air to the furnace. 618.4 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 Section 618.2, adjoining rooms or spaces shall be considered as 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- ing requirements: 2.1. The return air shall be taken from a room or space having a volume exceeding 1 cubic foot for each 10 Btu/h (9.6L/W) of combined input rating of all fuel -burning appliances therein. 2.2. The volume of supply air discharged back into the same space shall be approximately equal to the volume of return air taken from the space. 2.3. 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 atmospheric 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. 618.5 Screen. Required outdoor air 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). 124 2012 INTERNATIONAL FUEL GAS CODE" C,gbt@ ON I ICC ALL RIGHTS RESERVED Awsed by ().(-)O,d,,Nombsx 100760189 oc Sep SO, 2019 oa. ws PM(PDT)p—Pot to IL eAg—mt,oUICC No FYUP ep,odw.noa oAYUP, S I ( ,Fod,Y..1yPoytlu,dparty.oPANb�toc UoFsd Single—mlym,ymgand-Pyo,k,Fokbad ANY VNAVTHORIVED REPRODUCTION REDISTRIBUTION IS A VIOLATION OF THE ,EDORD, COPYRIGHT 11 AND THE LICENSE AGREEMENT, AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER SPECIFIC APPLIANCES 618.6 Return -air limitation. Return air from one dwelling unit shall not be discharged into another dwelling unit 618.7 (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 also be handled by a duct(s) sealed to the furnace casing and terminating outside of the space con- taining 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 and shall be installed in accordance with the manufacturer's installation 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 installation 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 unvented 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 Btu/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 unvented room heaters shall also comply with Section 303.3. 621.5 Room or space volume. The aggregate input rating of all unvented appliances installed in a room or space shall not exceed 20 Btu/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 unvented 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 unvented 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 installation instruc- tions. 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- cues, shall be tested in accordance with ANSI Z21.1, ANSI Z21.58 or ANSI Z83.11 and shall be installed in accordance with the manufacturer's installation instructions. 2012 INTERNATIONAL FUEL GAS CODE" 125 I II I C,gbtOO?.ot I ICC ALL RIGHTS RESERVED Awsedby().(-)O,d,,Nmmbsx1oovco189 oc SIP so.2.o19 oa.ws PM(PDT)p—Pot to IL eAg—mt,oUICC No FYUPep,oddtoaoAYUP, (,,Fod,Yo¢ebymytl,dputy,o,ANb,to,au o,sd Single —ooly, mpymg Pod-Pyo,k,Fokbad ANY VNAVTHORIVED REPRODUCTION REDISTRIBUTION IS A VIOLATION OF THE FEDERAL COPYRIGHT ACT AND THE LICENSE AGREEMENT, AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER SPECIFIC APPLIANCES 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. 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 (760mm) 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 mm) insulating millboard covered with sheet metal not less than 0.0122 inch (0.3 mm) thick. Z. 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 and ANSI Z21.10.3 and shall be installed in accordance with the manufacturer's installation instructions. Water heaters utilizing fuels other than fuel gas shall be regulated by the International Mechanical Code. 624.1.1 Installation requirements. The requirements for water heaters relative to sizing, relief valves, drain 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 installa- tion instructions and the International Plumbing Code. SECTION 625 (IFGC) REFRIGERATORS 625.1 General. Refrigerators shall be tested in accordance with ANSI Z21.19 and shall be installed in accordance with the manufacturer's installation 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, at least 2 inches (51 mm) shall be provided between the back of the refrigerator and the wall and at least 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 installation instructions. 626.2 Clearance. A gas -fired toilet shall be installed in accordance with its listing and the manufacturer's instruc- 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 air-conditioning appliances shall be tested in accordance with ANSI Z21.40.1 or ANSI Z21.40.2 and shall be installed in accordance with the manufacturer's installation instructions. 627.2 Independent piping. Gas pipingserving 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. 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 126 2012 INTERNATIONAL FUEL GAS CODE" C,gbt@ ON I ICC ALL RIGHTS RESERVED Awsed by ().(-)O,d,,Nombsx 100760189 oc Sep SO, 2019 oa.Os PM(PDT)p—Pot to IL eAg—mt,oUICC No FYUP ep,odw.noa oAYUP, rk S I ( odUt.. byzoyUb,dparty.oPAembmoo Uoosd Single—mly mpymg Pod-PyodmgFokb,Ad ANY VNAVTHORIVED REPRODUCTION REDISTRIBUTION IS A VIOLATION OF THE ,EDORD, COPYRIGHT 11 AND THE LICENSE AGREEMENT, AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER SPECIFIC APPLIANCES 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 material, provided that the combustible material is protected in accordance with Table 308.2. 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 air-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 combusti- ble 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 noncom- bustible material and surface finish and with no combustible material against the underside thereof. 627.7 Plenums and air ducts. A plenum supplied as a part of the air-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 air. 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 air 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 imposed 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 inter- rupting the electrical supply to the air-conditioning appliance and to its associated cooling tower (if supplied and installed in a location remote from the air 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 installation 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 3/4-inch (19.1 mm) Schedule 40 steel pipe. Drain 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 illuminating 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. Ceramic kilns with a maximum interior vol- ume of 20 cubic feet (0.566 m') and used for hobby and non- commercial purposes shall be installed in accordance with the manufacturer's installation instructions and the provisions of this code. 2012 INTERNATIONAL FUEL GAS CODE" 127 I II I C,gbtOO?.ot I ICC ALL RIGHTS RESERVED Awsedby().(-)O,d,,Nombsx1oovco189 oc SIP so.2.o19 oa.ws PM(PDT)p—Pot to IL eAg—mt,oUICC No FYUPep,oddtoaoAYUP, (,,Fod,Yo¢ebymytl,dputy,o,ANb,to,au o,sd Single —ooly, mpymg Pod-Pyo,k,Fokbad ANY VNAVTHORIVED REPRODUCTION REDISTRIBUTION 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 (0.38 m3/min/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 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, Sections 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 308.4. 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 633.1 General. Stationary fuel -cell power systems having a power output not exceeding 10 MW shall be tested in accor- dance with ANSI CSA America FC 1 and shall be installed in accordance with the manufacturer's installation instructions, NFPA 853, the International Building Code and the Interna- tional Fire Code. T] 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 Interna- 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 inchesp 8 13 20 1 29 1 39 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 min, 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 tile 128 2012 INTERNATIONAL FUEL GAS CODE" C,gbt@ ON I ICC ALL RIGHTS RESERVED Awsed by ().(-)O[d6 Nombsx 1007601e9 oc Sep SO, 2019 oa. Os PM(PDT) p-Pot to l»eAge mt,oUICC No FYUP ep,od U:oa oAYUP, S I ( �,Fod,Y.. byPoytlubdparty.oPANb�toc UoFPd Single-mlym,ymgand-Pyo,k,FokbUd ANY VNAVTHORIVED REPRODUCTION REDISTRIBUTION IS A VIOLATION OF THE ,EDORD, COPYRIGHT 11 AND THE LICENSE AGREEMENT, AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER CHAPTER 7 GASEOUS HYDROGEN 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. [F] 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. [F] HYDROGEN CUTOFF ROOM. A room or space which is intended exclusively to house a gaseous hydrogen system. 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. Ventilation shall be required in accordance with Section 703.1.1, 703.1.2 or 703.1.3 in public garages, private garages, repair garages, automotive motor fuel -dispensing facilities and parking garages that contain hydrogen -generating appliances or refueling systems. 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 con- sidered to be part of the private garage. 703.1.1 Natural ventilation. Indoor locations intended for hydrogen -generating or refueling operations shall be lim- tied to a maximum floor area of 850 square feet (79 m') and shall communicate with the outdoors in accordance with Sections 703.1.1.1 and 703.1.1.2. The maximum rated output capacity of hydrogen generating appliances shall not exceed 4 standard cubic feet per minute (0.00189 m3/s) of hydrogen for each 250 square feet (23.2 m') of floor area in such spaces. The minimum cross -sectional dimension of air openings shall be 3 inches (76 mm). Where ducts are used, they shall be of the same cross -sec- tional area as the free area of the openings to which they connect. In such locations, equipmentand appliances hav- ing an ignition source shall be located such that the source of ignition is not within 12 inches (305 mm) of the ceiling. 703.1.1.1 Two openings. Two permanent openings shall be provided within the garage. The upper opening shall be located entirely within 12 inches (305 mm) of the ceiling of the garage. The lower opening shall be located entirely within 12 inches (305 mm) of the floor of the garage. Both openings shall be provided in the same exterior wall. The openings shall communicate directly with the outdoors and shall have a minimum free area of '/z square foot per 1,000 cubic feet (1 m2/ 610 m3) of garage volume. 703.1.1.2 Louvers and grilles. In calculating the free area required by Section 703.1.1.1, the required size of openings shall be based on the net free area of each opening. If the free area through a design of louver or grille is known, it shall be used in calculating the size opening required to provide the free area specified. If the design and free area 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. Louvers and grilles shall be fixed in the open position. 703.1.2 Mechanical ventilation. Indoor locations intended for hydrogen -generating or refueling operations shall be ventilated in accordance with Section 502.16 of the International Mechanical Code. In such locations, equipment and appliances having an ignition source shall be located such that the source of ignition is below the mechanical ventilation outlet(s). 703.1.3 Specially engineered installations. As an alterna- tive to the provisions of Section 703.1.1 and 703.1.2, the necessary supply of air for ventilation and dilution of flammable gases shall be provided by an approved engi- neered system. [F] 703.2 Containers, cylinders and tanks. Compressed gas containers, cylinders and tanks shall comply with Chapters 53 and 58 of the International Fire Code. [F] 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') at normal temperature and pressure (NTP). 2012 INTERNATIONAL FUEL GAS CODE" 129 I I I I Copy,ght @ zoI I ICC ALL RIGHTS RESERVED Awsed by ().(-)O,d,,Nombsx 100760189 oc Sep so.2.o19 oa. ws PM(PDT) p—Potto l»eAge mt,oUICC No FYUP ep,oddtoa oAYUP, (,,Fod,Yo¢ebymytl,dputy,o,ANb,to,au o,sd Single —oPIA opymg PodortuodmgFokbad ANY VNAVTHORIVED REPRODUCTION REDISTRIBUTION IS A VIOLATION OF THE FEDERAL COPYRIGHT ACT AND THE LICENSE AGREEMENT, AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER GASEOUS HYDROGEN SYSTEMS [F] 703.2.2 Design and construction. Compressed gas containers, cylinders and tanks shall be designed, con- structed and tested in accordance with the Chapter 50 of the International Fire Code, ASME Boiler and Pressure Vessel Code (Section VIII) or DOTn 49 CUR, Parts 100- 180. [F] 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. [F] 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 times. [F] 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. [F] 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 CUR, Parts 100-180 and Section 703.3.7. [F] 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 CUR, Parts 100- 180. [F] 703.3.5 Sizing. Pressure relief devices shall be sized in accordance with the specifications to which the container was fabricated. The relief device shall be sized to prevent the maximum design pressure of the container or system from being exceeded. [F] 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. [F] 703.3.7 Access. Pressure relief devices shall be located such that they are provided with ready access for inspec- tion and repair.] [F] 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, equipmentand adjacent structures and to prevent introduction of escaping gas into enclosed spaces. The dis- charge shall not terminate 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. [F] 703.4 Venting. Relief device vents shall be terminated in an approved location in accordance with Section 2309 of the International Fire Code. [F] 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. [F] 703.6 Electrical wiring and equipment. Electrical wir- ing and equipment shall comply with NFPA 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 machin- 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 fail 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 704.1.2.1 through 704.1.2.5.1, Chapter 50 of the International Fire Code, and ASME 1331.3. 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 meth- ods. 704.1.2.2 Identification of hydrogen piping systems. Hydrogen piping systems shall be marked in accor- dance with ANSI At 3.1. Markings used for pipingsys- 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. Pipingand 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. Pipingsys- temsshall 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; chimney 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. 130 2012 INTERNATIONAL FUEL GAS CODE" Copyngbt@ ON I ICC ALL RIGHTS RESERVED A-P—d by ().(-)O,d,,Nombsx/00760/89 oc SIP SO, 2019 oa. Os PM(PDT) p—Pot to l»eAge mt,oUICC No FYUP ep,odw.noa oAYUP, S I ( [IFod Ut.. byzoyUb,dparty.oPAxmbmoo Uoosd Single —oPIA mpymg andortuodmgploIRb,Ad ANY VNAVTHORIVED REPRODUCTION REDISTRIBUTION IS A VIOLATION OF THE PEDERAL COPYRIGHT 11 AND THE LICENSE AGREEMENT, AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER GASEOUS HYDROGEN SYSTEMS 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 P/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 mini- mum of '/16-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. Pipinginstalled 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 also be protected against corrosion by coating or wrapping with an inert material. Below -ground piping shall be protected against corrosion. 704.1.2.3.7 Settlement. Pipingpassing 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- ing with ASME B31.3. 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 determine 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 B31.3 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 B31.3 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. 2012 INTERNATIONAL FUEL GAS CODE" 131 I II I C,gbtOO?.o„ ICC ALL RIGHTS RESERVED A-P—dby().(-)O,d,,Nombsxlow6ole9 oc SIP V,201902OsPM(PDT)p—Pot to IL eAg—mt,oUICC No FYUPep,oddtoaoAYUP, (,,Fod,Yo¢tbymytl,dputy,o,iNb,to,au o,sd Single —ooly, mpymg Pod-Pyo,k,Fokbad ANY VNAVTHORIVED REPRODUCTION REDISTRIBUTION IS A VIOLATION OF THE FEDERAL COPYRIGHT ACT AND THE LICENSE AGREEMENT, AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER GASEOUS HYDROGEN SYSTEMS 705.3.3 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. Deionized 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 inert gas; oxygen shall not be used. 705.3.5 Test duration. The minimum test duration shall be (/2 hour. The test duration shall be not less than (/2 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 m3), 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. 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 is). 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- ingsystems 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 upon. 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 hydrogen systems shall be located in indoor rooms or areas in accordance with one of the following: 1. Inside a building in a hydrogen cutoff room designed and constructed in accordance with Section 421 of the International Building Code; 132 2012 INTERNATIONAL FUEL GAS CODE" C,gbt@ ON I ICC ALL RIGHTS RESERVED Awsed by ().(-)O,d,,Nmmbsx 100760189 oc Sep SO, 201902 ws PM(PDT)p—Pot to IL eAg—mt,oUICC No FYUP ep,odw.noa oAYUP, S I ( �ep� odUt.. byanytlu,dparty.oPANb�toc UoFsd Single—mly mpymgand-PyodmgFokb,Ad ANY VNAVTHORIVED REPRODUCTION REDISTRIBUTION IS A VIOLATION OF THE ,EDORD, COPYRIGHT 11 AND THE LICENSE AGREEMENT, AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER GASEOUS HYDROGEN SYSTEMS 2. Inside a building not in a hydrogen cutoff room where the gaseous hydrogen system is listed and labeled for indoor installation and installed in accordance with the manufacturer's installation instructions; and 3. Inside a building in a dedicated hydrogen fuel dispens- ing area having an aggregate hydrogen delivery capac- ity not greater than 12 SCFM and designed and constructed in accordance with Section 703.1. [F] 706.3 Outdoor gaseous hydrogen systems. Gaseous hydrogen systems shall be located outdoors in accordance with Section 2309.3.2 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 Section 2311.8 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 sys- tems shall comply with Chapter 55 of the International Fire Code. 2012 INTERNATIONAL FUEL GAS CODE" 133 I II I C,gbtOO?.o„ ICC ALL RIGHTS RESERVED A-P—dby().(-)O,d,,Nombsxlow6ole9 oc SIP V,201902OsPM(PDT)p—Pot to IL eAg—mt,oUICC No FYUPep,oddtoaoAYUP, (,,Fod,Yo¢tbymytl,dputy,o,ANb,to,au o,sd Single —ooly, mpymg Pod-Pyo,k,Fokbad ANY VNAVTHORIVED REPRODUCTION REDISTRIBUTION IS A VIOLATION OF THE FEDERAL COPYRIGHT ACT AND THE LICENSE AGREEMENT, AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER 134 2012 INTERNATIONAL FUEL GAS CODE" C,gbtOO ON I ICC ALL RIGHTS RESERVED Awsedby().(-)O[d6 Nombsx1oovco189 oc Sep SO, 201902 ws PM (PDT) pwmmtto IL eAg—mt,oUICC No FYUP ep,odmno—oAYUP, S I ( odUt..lymyUb,dparty.oPAembmo—Uoosd Single—mly mpymg Pod-Pyodmgp,okb,Ad ANY VNAVTHORIVED REPRODUCTION REDISTRIBUTION IS A VIOLATION OF THE ,EDORD, COPYRIGHT 11 AND THE LICENSE AGREEMENT, AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER IFGC/IFGS CHAPTER 8 REFERENCED STANDARDS 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 title, 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 American National Standards Institute 25 West43rd Street Fourth Floor New York, NY 10036 reference in code number Title section number ANSI At 3.1-2007 Scheme for the Identification of Piping Systems...........................................704.1.2.2 ANSI CSA-America FC 1-03 Stationery Fuel Cell Power Systems........................................................633.1 LC 1/CSA 6.26 05 Fuel Gas Piping Systems Using Corrugated Stainless Steel Tubing (CSSH ....................... 403.5.4 ANSI LC-4 07 Press -connect Copper and Copper Alloy Fittings for Use In Fuel Gas Distribution Systems.......... 403.10.2 Z21.1-05 Household Cooking Gas Appliances.......................................................623.1 Z21.5.1/CSA 7.106 Gas Clothes Dryers -Volume I -Type 1 Clothes Dryers.......................................613.1 Z21.5.2/CSA 7.205 Gas Clothes Dryers -Volume II -Type 2 Clothes Dryers ................................. 613.1, 614.3 Z21.8-94 (R2002) Installation of Domestic Gas Conversion Burners.............................................619.1 Z21.10.1/CSA 4.109 Gas Water Heaters -Volume IStorage, Water Heaters with Input Ratings of75,000 Btu per Hour or Less.........................................................624.1 Z21.10.3/CSA 4.304 Gas Water Heaters -Volume IIIStorage, Water Heaters with Input Ratings Above 75,000 Btu per hour, Circulating and Instantaneous....................................624.1 Z21.11.2-07 Gas -fired Room Heaters -Volume II-Unvented Room Heaters....................................621.1 Z21.13/CSA 4.9-10 Gas -fired Low-pressure Steam and Hot Water Boilers..........................................631.1 Z21.15/CGA 9.109 Manually Operated Gas Valves for Appliances, Appliance Connector Valves and Hose End Valves ... 409.1.1 Z21.19/CSA 1.402(R2007) Refrigerators Using Gas (R1999) Fuel......................................................625.1 Z21.24/CGA 6.10-06 Connectors for Gas Appliances............................................................411.1 Z21.40.1/CGA 2.9196 (R2002) Gas -Fired Heat Activated Air Conditioning and Heat Pump Appliances............................627.1 Z21.40.2/CGA 2.9296 (R2002) Gas -Fired Work Activated Air Conditioning and Heat Pump Appliances (Internal Combustion) .........627.1 Z21.42-93 (R2002) Gas -Fired Illuminating Appliances.........................................................628.1 Z21.47/CSA 2.3-06 Gas -Fired Central Furnaces...............................................................618.1 Z21.50/CSA 2.22-07 Vented Gas Fireplaces...................................................................604.1 Z21.56/CSA 4.7-06 Gas -Fired Pool Heaters..................................................................617.1 Z21.58/CSA 1.6-07 Outdoor Cooking Gas Appliances..........................................................623.1 Z21.60/CSA 2.26-03 Decorative Gas Appliances for Installation in Solid -fuel Burning Fireplaces ........................602.1 Z21.61-83 (R2004) Gas -fired Toilets........................................................................626.1 Z21.69/CSA 6.16-09 Connectors for Movable Gas Appliances .................................................. 411.1.1 Z21.75/CSA 6.2707 Connectors for Outdoor Gas Appliances and Manufactured Homes ......................... 411.1, 411.2 Z21.80-03(R2008) Line Pressure Regulators.................................................................410.1 Z21.8402 Manually -lighted, Natural Gas Decorative Gas Appliances for Installation in Solid Fuel Burning Fireplaces -with Addenda Z21.84a-2003 ........................... 602.1, 602.2 Z21.86-08 Vented Gas -fired Space Heating Appliances......................................608.1, 609.1, 622.1 Z21.88/CSA 2.33-09 Vented Gas Fireplace Heaters.............................................................605.1 Z21.91 07 Ventiess Firebox Enclosures for Gas -fired Unvented Decorative Room Heaters ................... 621.7.1 Z21.97-09 Outdoor Decorative Appliances............................................................. 636 Z83.4/CSA 3.7-03 Nonrecirculating Direct -gas -fired Industrial Air Heaters........................................611.1 Z83.6-90 (R1998) Gas -fired Infrared Heaters................................................................630.1 Z83.8/CSA 2.609 Gas Unit Heater, Gas Packaged Heater, Gas Utility Heaters and Gas -fired Duct Furnaces ..............620.1 Z83.11/CSA 1.8-06 Gas Food Service Equipment.............................................................623.1 Z83.18-04 Recirculating Direct Gas -fired Industrial Air Heaters..........................................612.1 Z83.19-01(R2005) Gas -fired High -intensity Infrared Heaters....................................................630.1 Z83.20-08 Gas -fired Low -intensity Infrared Heaters....................................................630.1 2012 INTERNATIONAL FUEL GAS CODE" 135 I " ' C,ghtOO?.ot I ICC ALL RIGHTS RESERVED Awsedby().(-)O[d6 Nombsx1oovco189 oc SIP so.2.o19 oa.ws PM(PDT)p-Pottal»eAgemt,oUICC No FYUPep,oddtoaoAYUP, (,,Fod,Yo¢ebymytl,dputy,o,ANb,to,au o,sd Single -ooly, mpymg Pod-Pyo,k,FokbUd ANY VNAVTHORIVED REPRODUCTION REDISTRIBUTION IS A VIOLATION OF THE FEDERAL COPYRIGHT ACT AND THE LICENSE AGREEMENT, AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER REFERENCED STANDARDS A V M L American Society of Mechanical Engineers Three Park Avenue New York, NY 10016-5990 reference in code number Title section number B1.20.1-83 (Reaffirmed 2006) Pipe Threads, General Purpose (inch) ....................................................... 403.9 B 16.1-2005 (Reaffirmed 2004) Cast-iron Pipe Flanges and Flanged Fittings, Class 25, 125 and 250 ............................. 403.12 B 16.20-98 (Reaffirmed 2007) Metallic Gaskets for Pipe Flanges Ring joint, Spiral -wound and Jacketed ......................... 403.12 B 16.33-02 (Reaffirmed 2007) Manually Operated Metallic Gas Valves for Use in Gas Piping Systems up to 125 psig (Sizes'/2 through 2).....................................................409.1.1 B 16.44-2002 (Reaffirmed 2007) Manually Operated Metallic Gas Valves for Use in Aboveground Piping Systems Upto 5 psi........................................................................409.1.1 B31.3-04 Process Piping ................................................... 704.1.2, 704.1.2.4, 705.2, 705.3 B36.10M-2004 Welded and Seamless Wrought -steel Pipe..................................................403.4.2 BPVC-- 07 ASME Boiler & Pressure Vessel Code (2007 Edition) . ................... 631.1, 703.2.2, 703.3.3, 703.3.4 CSD-1-2009 Controls and Safety Devices for Automatically Fired Boilers ................................... 631.1 ASTM ASTM International 100 Barr Harbor Drive West Conshohocken, PA 19428-2959 reference number Title in code section number A 53/A 53M07 Specification for Pipe, Steel, Black and Hot Dipped Zinc -coated Welded and Seamless ..............403.4.2 A 106/A 106M-- 08 Specification for Seamless Carbon Steel Pipe for High -temperature Service .......................403.4.2 A 25497 (2007) Specification for Copper Brazed Steel Tubing...............................................403.5.1 B 88-03 Specification for Seamless Copper Water Tube..............................................403.5.2 B 210-04 Specification for Aluminum and Aluminum -alloy Drawn Seamless Tubes.........................403.5.3 B 241/13 241M 02 Specification for Aluminum and Aluminum -alloy, Seamless Pipe and Seamless Extruded Tube .................................................. 403.4.4,403.5.3 C 315-07 Specification for Clay Flue Liners and Chimney Pots ......................................... 501.12 D 2513-- 09 Specification for Polyethylene (PE) Gas Pressure Pipe, Tubing and Fittings ...403.6, 403.6.1, 403.11, 404.17.2 D 2513-08b Specification for Thermoplastic Gas Pressure Pipe, Tubing and Fittings ........................... 403.6 F 1973-- 08 Standard Specification for Factory Assembled Anodeless Risers and Transition Fittings in Pod ethylene (PE) and Polyamide 11 (PAL 1) and Polyamide 12 (PA12� Fuel Gas Distribution Systems..................................404.17.2 C GA Compressed Gas Association 1725 Jefferson Davis High way, 5th Floor Arlington, VA 22202-4102 Standard Referenced reference in code number Title section number S-1.1(2002) Pressure Relief Device Standards —Part 1Cylinders for Compressed Gases ...................... 703.3 S-1.2(1995) Pressure Relief Device Standards —Part 2—Cargo and Portable Tanks for Compressed Gases ......... 703.3 S-1.3(1995) Pressure Relief Device Standards —Part 3—Stationary Storage Containers for Compressed Gases ...... 703.3 CSA CSA America Inc 8501E Pleasant Valley Rd Cleveland, OH USA 44131-5575 reference in code number Title section number ANSI CSA America FC1-03 Stationary Fuel Cell Power Systems....................................................... 633.1 CSA 893 Requirements for Gas -fired Log Lighters for Wood Burning Fireplaces —with Revisions through January 1999........................................................ 603.1 136 2012 INTERNATIONAL FUEL GAS CODE" C,gbt@ ON I ICC ALL RIGHTS RESERVED Awsed by ().(-)O[d6 Nombsx 1007601e9 oc Sep SO,2019 oa. Os To (PDT) p—Potty l»eAge mt,oUICC No FYUP epoodw.noa oAYUP, S I ' liR olUto.. byzoyUbdparty.oPAembmoo UoFPd Single—mly mpymg PodoehxodmgFokb,Ad ANY VNAVTHORIVED REPRODUCTION REDISTRIBUTION IS A VIOLATION OF THE TRY REAL COPYRIGHT 11 INC THE LICENSE AGREEMENT, AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER REFERENCED STANDARDS DOTn Department of Transportation 400 Seventh St SW Washington, DC 20590 reference in code number Title section number 49 CFR, Parts 192.281(e) & 192.283 (b)(2009) Transportation of Natural and Other Gas by Pipeline: Minimum Federal Safety Standards ........... 403.6.1 49 CFR Parts 100-180 Hazardous Materials Regulations .......................................... 703.2.2, 703.3.3, 703.3.4 ICC International Code Council, Inc 500 New Jersey Ave, NW 6th Floor Washington, DC 20001 reference in code number Title section number IBC-12 International Building Code° ........................................ 102.2.1, 201.3, 301.10, 301.11, 301.12, 301.14, 302.1, 302.2, 305.6, 306.6, 401.1.1, 412.6, 413.3, 413.3.1, 501.1, 501.3, 501.12, 501.15.4, 609.3, 614.2, 706.2, 706.3 IECC-12 International Energy Conservation Code°...................................................301.2 IFC-12 International Fire Code°................................................201.3, 401.2, 412.1, 412.6, 412.7, 412.7.3, 412.8, 413.1, 413.3, 413.3.1, 413.5, 413.9.2.5, 701.1, 701.2, 703.2, 703.2.2, 703.3.8, 703.4, 703.5, 704.1.2, 704.3, 704.4, 706.2, 706.3, 707.1, 707.2, 708.1 IMC12 International Mechanical Code°......................................101.2.5, 201.3, 301.1.1, 301.13, 304.11, 501.1, 614.2, 618.5, 621.1, 624.1, 631.2, 632.1, 703.1.2 IPC-12 International Plumbing Code ............................................ 201.3, 301.6, 624.1.1, 624.2 IRC-12 International Residential Code°......................................................... 703.2.1 MSS Manufacturers Standardization Society of the Valve and Fittings Industry 127 Park Street, Northeast Vienna, VA 22180 reference number Title in code section number SP-6 01 Standard Finishes for Contact Faces of Pipe Flanges and Connecting -end Flanges of Valves and Fittings...............................................................403.12 SP-58-93 Pipe Hangers and Supports -Materials, Design and Manufacture..................................407.2 National Fire Protection Association N FPA 1 Batterymarch Park Quincy, MA 02269-9101 Standard Referenced reference in code number Title section number 30A-12 Code for Motor Fuel Dispensing Facilities and Repair Garages..................................305.4 37-10 Installation and Use of Stationary Combustion Engines and Gas Turbines ..........................616.1 5102 Design and Installation of Oxygen -fuel Gas Systems for Welding, Cutting and Allied Processes ........414.1 58-11 Liquefied Petroleum Gas Code................................................401.2, 402.6, 403.11 70-11 National Electrical Code.................................................306.3.1, 306.4.1, 306.5.2, 309.2, 413.9.2.4, 703.6 82-09 Incinerators, Waste and Linen Handling Systems and Equipment..........................503.2.5, 607.1 85-11 Boiler and Combustion Systems Hazards Code...............................................631.1 88A-11 Parking Structures......................................................................305.9 21110 Chimneys, Fireplaces, Vents and Solid Fuel -burning Appliances ....... 503.5.2, 503.5.3, 503.5.6.1, 503.5.6.3 2012 INTERNATIONAL FUEL GAS CODE" 137 I " ' C,ghtOO?.ot I ICC ALL RIGHTS RESERVED Awsedby().(-)O[d6 Nombsx1oovco1es oc SIP so.2.o19 oa.ws PM(PDT)p—Pottal»eAgemt,oUICC No FYUPepooddtoaoAYUP, (,eFod,Yo¢ebymytl,dputy,o,ANb,to,au o,sd Single —ooly, mpymg PodoehuodmgFokbad ANY VNAVTHORIVED REPRODUCTION REDISTRIBUTION IS A VIOLATION OF THE FEDERAL COPYRIGHT ACT AND THE LICENSE AGREEMENT, AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER REFERENCED STANDARDS N F PA —continued 409-10 Aircraft Hangars...................................................................... 305.11 853-10 Installation of Stationary Fuel Cell Power Systems ............................................ 633.1 UL Undervvdters Laboratories Inc 333 Pfingsten Road Northbrook, IL 60062 reference number Title in code section number 1032001 Factory -built Chimneys, Residential Type and Building Heating Applianceswith Revisions through March 2010......................................................... 506.1 127-08 Factory -built Fireplaces —with Revisions through January 2010................................. 621.7 441-2010 Gas Vents —with Revisions through August 2006............................................ 502.1 641-95 Type L Low -temperature Venting Systems —with Revisions through July 2009 ..................... 502.1 651-05 Schedule 40 and 80 Rigid PVC Conduit and FittingswithRevisions through March 2010 ..........403.6.3 795-2006 Commercial -industrial Gas Heating Equipment —with Revisions through April 2010 ..... 610.1, 618.1, 631.1 95901 Medium Heat Appliance Factory -built Chimneys —with Revisions through June 2010 ............... 506.3 17381993 Venting Systems for Gas Burning Appliances, Categories II, III and IV —with Revisions through October 2006........................................................ 502.1 1777-2007 Chimney Liners —with Revisions through July 2009.................................. 501.12, 501.15.4 220098 Stationary Engine Generator Assemblies —with Revisions through December 2009 .................. 616.1 138 2012 INTERNATIONAL FUEL GAS CODE" C,gbt@ON I ICC ALL RIGHTS RESERVED Awsedby().(-)O[d6Nombsx1oovco189 oc Sep SO,2019 oa.ws PM(PDT)p—Pottal»eAgemt,oUICC No FYUPepood A:oaoAYUP, S I ( liR od At.. byzoyUb,dparty.oPAembmoo Uoosd Single—mly mpymg PodoehxodmgFokb,Ad ANY VNAVTHORIVED REPRODUCTION REDISTRIBUTION IS A VIOLATION OF THE TRY REAL COPYRIGHT 11 INC THE LICENSE AGREEMENT, AND SUBJECT 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.) 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-inch water column (w.c.) (1.25 kPa), which 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. This would seldom be of concern in small systems if the source pressure is V, 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 determined, whenever possible, directly from the manufacturer's gas input Btu/h rating of the appli- ance that will be installed adjusted for altitude where appro- priate. In the case where the ratings of the appliances to be installed are not known, Table 402.2 shows the approximate consumption (in Btu per hour) of certain types of typical household appliances. To obtain the cubic feet per hour of gas required, divide the total Btu/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; and in Tables 402.4(15) through 402.4(17) for corrugated stainless steel tubing. Tables 402.4(1) and 402.4(8) are based upon a pressure drop of 0.3-inch w.c. (75 Pa), whereas Tables 402.4(2), 402.4(9) and 402.4(15) are based upon a pressure drop of 0.5-inch 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 applications based upon pressure drops greater than 0.5-inch w.c. (125 Pa). In using these tables, an allow- ance (in 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 I'/, 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 lobe 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 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. 2012 INTERNATIONAL FUEL GAS CODE® 139 I II I C,gbtOO?.ot I ICC ALL RIGHTS RESERVED Awsedby().(-)O,d,,Nombsx1oovco189 oc SIP so.2.o19 oa.ws PM(PDT)p-Pot to IL eAg-mt,oUICC No FYUPep,oddtoaoAYUP, (,,Fod,Yo¢ebymytl,dputy,o,iNb,to,au o,sd Single -ooly, mpymg Pod-Pyodmg FoIRbad ANY VNAVTHORIVED REPRODUCTION REDISTRIBUTION IS A 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°/EII 90°/EII 180°close return Tee R/d = 1 R/d = 111, R/d = 2 R/d = 4 R/d = 6 R/d = 8 bends k factor = 0.42 0.90 2.00 1.80 0.48 0.36 0.27 0.21 0.27 0.36 L/d'ratio4 n= 14 30 67 60 16 12 9 7 9 12 Nominal Inside diameter d, pipe size, inches, inches Schedule 40E L =Equivalent Length In Feet of Schedule 40 (Standard -weight) Straight Pipe` 1/2 0.622 0.73 1.55 3.47 3.10 0.83 0.62 0.47 0.36 0.47 0.62 1/1 0.824 0.96 2.06 4.60 4.12 1.10 0.82 0.62 0.48 0.62 0.82 1 1.049 1.22 2.62 5.82 5.24 1.40 1.05 0.79 0.61 0.79 1.05 11/4 1.380 1.61 3.45 7.66 6.90 1.84 1.38 1.03 0.81 1.03 1.38 11/2 1.610 1.88 4.02 8.95 8.04 2.14 1.61 1.21 0.94 1.21 1.61 2 2.067 2.41 5.17 11.5 10.3 2.76 2.07 1.55 1.21 1.55 2.07 21/2 2.469 2.88 6.16 13.7 12.3 3.29 2.47 1.85 1.44 1.85 2.47 3 3.068 3.58 7.67 17.1 15.3 4.09 3.07 2.30 1.79 2.30 3.07 4 4.026 4.70 10.1 22.4 20.2 5.37 4.03 3.02 2.35 3.02 4.03 5 5.047 5.88 12.6 28.0 25.2 6.72 5.05 3.78 2.94 3.78 5.05 6 6.065 7.07 15.2 33.8 30.4 8.09 6.07 4.55 3.54 4.55 6.07 8 7.981 9.31 20.0 44.6 40.0 10.6 7.98 5.98 4.65 5.98 7.98 10 10.02 11.7 25.0 55.7 50.0 13.3 10.0 7.51 5.85 7.51 10.0 12 11.94 13.9 29.8 66.3 59.6 15.9 11.9 8.95 6.96 8.95 11.9 14 13.13 15.3 32.8 73.0 65.6 17.5 13.1 9.85 7.65 9.85 13.1 16 15.00 17.5 37.5 83.5 75.0 20.0 15.0 11.2 8.75 11.2 15.0 18 16.88 19.7 42.1 93.8 84.2 22.5 16.9 12.7 9.85 12.7 16.9 20 18.81 22.0 47.0 105.0 94.0 25.1 18.8 14.1 11.0 14.1 18.8 24 22.63 26.4 56.6 126.0 113.0 30.2 22.6 17.0 13.2 17.0 22.6 (continued) 140 2012 INTERNATIONAL FUEL GAS CODE" C,gbt@ON I ICC ALL RIGHTS RESERVED Awsedby().(-)O,d,,N„mbsx10076018901 Sep SO, 201902 OsPM(PDT)p-Pott°l»eAg-mt,oUICC No FYUP,ep,°dUto-oAYUP, S I '" 'ITLlig ,ep,°dmY°¢ebyanytlu,dparty.°,ANb,N°ca UoFP,d Single-mlym,ymgand-Pyo,kgp,°kb,Ad ANY VNAVTHORIVED REPRODUCTION REDISTRIBUTION IS A VIOLATION OF THE ,EDORD, COPYRIGHT 11 AND THE LICENSE AGREEMENT, AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER APPENDIX A TABLE A.2.2-continued EQUIVALENT LENGTHS OF PIPE FITTINGS AND VALVES MITER ELBOWS' (No. of miters) WELDING TEES VALVES (screwed, flanged, or welded) 1-45' 1-60o 1-90o 2-90os 3-90°s Forged Miter3 Gate Globe Angle Swing Check kfactor= 0.45 0.90 1.80 0.60 0.45 1.35 1.80 0.21 10 5.0 2.5 Ld' ratiO4 n = 15 30 60 1 20 15 45 60 7 333 167 83 Nominal Inside pipe size, diameter d, inches, L = Equivalent Length In Feet of Schedule 40 (Standard -weight) Straight Pipe` inches Schedule 40` 1/2 0.622 0.78 1.55 3.10 1.04 0.78 2.33 3.10 0.36 17.3 8.65 4.32 3/4 0.824 1.03 2.06 4.12 1.37 1.03 3.09 4.12 0.48 22.9 11.4 5.72 1 1.049 1.31 2.62 5.24 1.75 1.31 3.93 5.24 0.61 29.1 14.6 7.27 11/4 1.380 1.72 3.45 6.90 2.30 1.72 5.17 6.90 0.81 38.3 19.1 9.58 11/2 1.610 2.01 4.02 8.04 2.68 2.01 6.04 8.04 0.94 44.7 22.4 11.2 2 2.067 2.58 5.17 10.3 3.45 2.58 7.75 10.3 1.21 57.4 28.7 14.4 21/2 2.469 3.08 6.16 12.3 4.11 3.08 9.25 12.3 1.44 68.5 34.3 17.1 3 3.068 3.84 7.67 15.3 5.11 3.84 11.5 15.3 1.79 85.2 42.6 21.3 4 4.026 5.04 10.1 20.2 6.71 5.04 15.1 20.2 2.35 112.0 56.0 28.0 5 5.047 6.30 12.6 25.2 8.40 6.30 18.9 25.2 2.94 140.0 70.0 35.0 6 6.065 7.58 15.2 30.4 10.1 7.58 22.8 30.4 3.54 168.0 84.1 42.1 8 7.981 9.97 20.0 40.0 13.3 9.97 29.9 40.0 4.65 22.0 111.0 55.5 10 10.02 12.5 25.0 50.0 16.7 12.5 37.6 50.0 5.85 278.0 139.0 69.5 12 11.94 14.9 29.8 59.6 19.9 14.9 44.8 59.6 6.96 332.0 166.0 83.0 14 13.13 16.4 32.8 65.6 21.9 16.4 49.2 65.6 7.65 364.0 182.0 91.0 16 15.00 18.8 37.5 75.0 25.0 18.8 56.2 75.0 8.75 417.0 208.0 104.0 18 16.88 21.1 42.1 84.2 28.1 21.1 63.2 84.2 9.85 469.0 234.0 117.0 20 18.81 23.5 47.0 94.0 31.4 23.5 70.6 94.0 11.0 522.0 261.0 131.0 24 22.63 28.3 56.6 113.0 37.8 28.3 85.0 113.0 13.2 629.0 314.0 157.0 For SI 1 foot= 305 mm, 1 degree = 0 01745 road 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- M46 5 For condition of minimum resistance where the centerline length of each miter is between d and 2112d 6 For pipe having other inside diameters, the equivalent resistance may be computed from the above n values Source Crocker, S Piping Handbook, 4th ed , Table XIV, pp 100-101 Copyright 1945 by McGraw-Hill, Inc Used by permission of McGraw-Hill Book Company 2012 INTERNATIONAL FUEL GAS CODE" 141 I " ' C,gbt OO?.ot I ICC ALL RIGHTS RESERVED Awsed by ().(-)O,d6 Nombsx,00vco,es oc Sep so.2.o,s oa. ws PM(PDT) p-Potty l»eAge mt,oUICC No FYUP ep,od„ceoa oAYUP, (,ep,od,Yo¢ebymytl,dputy,o,ANb,No,au o„,d Smglo-ooly mpymg Podoehuodmgp,okb,Ad ANY VNAVTHORIVED REPRODUCTION REDISTRIBUTION IS A VIOLATION OF THE FEDERAL COPYRIGHT ACT AND THE LICENSE AGREEMENT, AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER APPENDIX A TABLE A.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 0.35 1.31 1.00 0.78 0.40 1.23 1.10 0.74 0.45 1.16 1.20 0.71 0.50 1.10 1.30 0.68 0.55 1.04 1.40 0.66 0.60 1.00 1.50 1 0.63 0.65 0.96 1.60 0.61 0.70 0.93 1.70 0.59 0.75 0.90 1.80 0.58 0.80 0.87 1.90 0.56 0.85 0.84 2.00 0.55 0.90 0.82 2.10 0.54 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 pipingsystem to the maximum value. To determine 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): (1) Divide the piping system into appropriate segments consistent with the presence of tees, branch lines and main runs. For each segment, determine the gas load (assuming all appliances operate simultaneously) and its overall length. An allowance (in equivalent length of pipe) as determined from Table A.2.2 shall be considered 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(36) are to be used to select the piping size, calculate the gas demand in terms of thousands 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) Determine the length of piping from the point of delivery to the most remote outlet in the building/ piping system. (5) In the appropriate capacity table, select the row showing 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 values 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 figures for this particular system of piping. (7) Starting at the most remote outlet, find the gas demand for that outlet in the horizontal row just 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 pipingwill be found. (9) Proceed in a similar manner for each outlet and each section of gas piping. For each section of piping, determine the total gas demand supplied by that section. When 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 may 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 in can be read from the table heading). The equivalent length values can be used with reasonable accuracy for copper or brass fittings and bends although the resistance per foot of copper or brass pipe is less than that of steel. For copper or brass 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. 142 2012 INTERNATIONAL FUEL GAS CODE® Co,gbt@ ON I ICC ALL RIGHTS RESERVED Awsed by ().(-)O,d,,Nombsx 100760189 oc Sep SO, 2019 oa.Os PM(PDT)p-Pot to IL eAg-mt,oUICC No FYUP ep,odw.noa oAYUP, S I ( ,Fod,Yo,,bymytl,dputy,o,ANb�to,au o�sd Single-mlym,ymg and-Pyo,k,Fokbad ANY VNAVTHORIVED REPRODUCTION REDISTRIBUTION IS A VIOLATION OF THE Tk FOR REAL COPYRIGHT 11 AND THE LICENSE AGREEMENT, AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER APPENDIX A 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) Determine the gas load for each of the connected appliances. (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 considered 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 connected 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 longest length distance in the first column or the next larger distance if the exact distance is not listed. The use of alternative operating pressures and/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 and/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 previously 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 ratings) from all connected appliances. (In certain circumstances the installed gas load may 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 3/4 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 regulator located inside the building. (3) If there are multiple line regulators, measure the distance 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 piping 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 distance 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 pipingsystem, 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 appliances. (2) Starting from the line regulator, divide the piping system into a number of connected segments and/or independent parallel piping segments, and determine the 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 considered for piping segments that include four or more fittings. 2012 INTERNATIONAL FUEL GAS CODE" 143 I I I I C,gbtOO?.ot I ICC ALL RIGHTS RESERVED Awsedby().(-)O,d,,Nombsx1oovco189 oc SIP so.2.o19 oa.ws PM(PDT)p—Pot to IL eAg—mt,oUICC No FYUP ep,oddto—oAYUP, (,,FodmYo¢ebymytl,dputy,o,ANb,to,au o,sd Smglo poly, mpymg Pod-Pyo,k,Fokbad ANY VNAVTHORIVED REPRODUCTION REDISTRIBUTION IS A VIOLATION OF THE FEDERAL COPYRIGHT ACT AND THE LICENSE AGREEMENT, AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER APPENDIX A (3) For each piping segment, use the actual length or longest length (if there are sub-branchlines) and the calculated 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 pressures and/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 and/or pressure drops may 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 piping system. A.3.4 Pressure drop per 100 feet method. This sizing method is less conservative than the others, but it allows the 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 pipingsegment, 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'/, 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 high drop section(s) and sizing selections modified. Note: Other values can be obtained by using the following equation: For example, if it is desired to get flow through 3/4 inch (19.1 mm) pipe at 2 inches/100 feet, multiply the capacity of 3/4 inch pipe at 1 inch/100 feet by the square root of the pressure ratio: 147 MBHx 2 w'e' = 147 x 1.414 = 208 MBH 1" w.c. (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= 181.6 Ds -(,— )-Y Cr fba L � 0 541 = 2237 D2623-(' I—') ' 1'� Cr L (2) Low Pressure [Less than 1.5 psi (10.3 kPa)]: Q = 187.3 D5 AH Cr fba L = 2313D 2623( AH�0541 C r 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 P, = Downstream pressure, psia Y = Superexpansibility factor = 1/supercompressibility factor Cr = Factor for viscosity, density and temperature* 0.00354 S7( 0152 Desired Value = MBHx wired Drop Note: See Table 402.4 for Yand Cr for natural gas and Table Drop propane. TABLE A.3.4 THOUSANDS OF BTUIH (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) 'fix '14 1 1114 1112 2 0.2 31 64 121 248 372 716 0.3 38 79 148 304 455 877 0.5 50 104 195 400 600 1160 1.0 71 147 276 566 848 1640 For SI 1 inch = 25 4 Part, 1 foot = 304 8 Part 144 2012 INTERNATIONAL FUEL GAS CODE" " ' C,gbt@ ON I ICC ALL RIGHTS RESERVED A-P—d by ().(-)O[d6 Nombsx 100760189 oc Sep SO,2019 oa. OsPM(PDT) p—Potto l»eAge mt,oUICC No FYUP ep,odw.noa oAYUP, r I ( �,Fod,Y.. byPoytlubdparty.oPANb�toc UoFPd Single—mlym,ymgand-Pyodmg FoIRbUd ANY VNAVTHORIVED REPRODUCTION REDISTRIBUTION IS A VIOLATION OF THE ,EDORD, COPYRIGHT 11 AND THE LICENSE AGREEMENT, AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER APPENDIX A S = Specific gravity of gas at 60°F and 30-inch mercury column (0.60 for natural gas, 1.50 for propane), or = 1488µ T = Absolute temperature, AT or = t+ 460 t = Temperature, AT Z = Viscosity of gas, centipoise (0.012 for natural gas, 0.008 for propane), or = 1488µ fba = Base friction factor for air at 60°F (CF = 1) L = Length of pipe, it AH = Pressure drop, in. w.c. (27.7 in. Hz0 = 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 INTERNAL NOMINAL SIZE INTERNAL (inch) DIAMETER (inch) DIAMETER (inch) (inch) 1/4 0.364 1l/z 1.610 '/e 0.493 2 2.067 1/2 0.622 21/2 2.469 3/4 0.824 3 3.068 1 1.049 31/2 3.548 11/4 1.380 4 4.026 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 outletof the pipingsys- tem shown in Figure ARL 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'). Solution: (1) Maximum gas demand for OutletA: Consumption (rating plate input, or Table 402.2 if necessary Btu of gas 35,000 Btu per hour rating - 35 cubic feet per hour = 35 Rib 1,000 Btu per cubic foot Maximum gas demain for Outlet B: Consumption - 75,000 - 75 cfh Btu of gas 1,000 Maximum gas demain for OutletC: Consumption _ 35,000 - 35 Rib Btu of gas 1,000 Maximum gas demain for OutletD: Consumption - 100,000 - 100 cfh Btu of gas 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. TABLE A.5.2 COPPER TUBE STANDARD SIZES TUBE TYPE NOMINAL OR STANDARD SIZE INTERNAL DIAMETER (inches) inches) K 1/4 0.305 L 1/4 0.315 ACR (D) % 0.315 ACR (A) % 0.311 K % 0.402 L % 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) d/g 0.545 ACR (A) d/e 0.555 K 54 0.652 L 54 0.666 ACR (D) '/q 0.666 ACR (A) '/q 0.680 K '/q 0.745 L '/q 0.785 ACR '/g 0.785 K 1 0.995 L 1 1.025 ACR 1l/e 1.025 K 11/4 1.245 L 11/4 1.265 ACR 13/e 1.265 K 11/2 1.481 L 11/2 1.505 ACR 164 1.505 K 2 1.959 L 2 1.985 ACR 21/e 1.985 K 21/2 2.435 L 21/2 2.465 ACR 25/e 2.465 K 3 2.907 L 3 2.945 ACR 31/e 2.945 For SI 1 inch - 25 4 min 2012 INTERNATIONAL FUEL GAS CODE" 145 I II I Co,gbtOO?.ot I ICC ALL RIGHTS RESERVED Awsedby().(-)O[d6 Nombsx1oovco189 oc SIP so.2.o19 oa.ws PM(PDT)p-Pottal»eAgemt,oUICC No FYUPep,oddtoaoAYUP, (,,Fod,Yo¢ebymytl,dputy,o,ANb,to,au o,sd Single -ooly, mpymg Pod-Pyo,k,FokbUd ANY VNAVTHORIVED REPRODUCTION REDISTRIBUTION IS A VIOLATION OF THE FEDERAL COPYRIGHT ACT AND THE LICENSE AGREEMENT, AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER /!\iiir9N1:�!1 (b) Outlet B, supplying 75 cfh (212 credit), requires '/q inch pipe (c) Seaton 1, supplying Outlets A and B, or 110 cfh (3 11 m'/k), requires '/q inch pipe (d) Seaton 2, supplying Outlets C and D, or 135 cfh (3 82 credit), requires '/q inch pipe (e) Seaton 3, supplying Outlets A, B, C and D, or 245 cfh (6 94 credit), requires 1-inch pipe (4) If a different gravity factor is applied to this example, the values in the row marked 60 feet (18 288 min) of Table 402 4 (2) would be multiplied by the appropriate multiplier from Table A 2 4 and the resulting cubic feet per how values would be used to size the piping Outlet D Ornate trader C mu"' Bet, 40 gal anemm¢ water heatr 35000 Wh Semon2 xJfl Sater3 Sationi Afl 10fl 15fl t l } Sit J L 5fl ahetA delheadryer d.bary 35p00 avh Cutlet B enunit 7570ae 0 Bhvh FIGURE A 6 1 PIPING PLAN SHOWING A STEEL PIPING SYSTEM 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 M]/m') Solution: (1) Size 2 psi (13 8 kPa) line using Table 402 4(18) (2) Size 10-inch w c (2 5 kPa) Imes using Table 402 4(16) (3) Using the following, determine if sizing tables can be used (a) Total gas load shown in Figure A 6 2 equals 110 cfh (3 11 me/hr) (b) Determine pressure drop across regulator [see notes in Table 402 4(18)] (c) If pressure drop across regulator exceeds'/e prig (5 2 kPa), Table 402 4(18) cannot be used Note If pressure drop exceeds'/e psi (5 2 kPa), then a larger regulator most be selected or an alternative sizing method most be used (d) Pressure drop across the line regulator [for 110 cfh (3 11 m'/k)] is 4-inch w c (0 99 kPa) based on manufacturer's performance data (e) Assume the CSST manufacturer has tubing sizes or EHDs 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'/k) (furnace+ water heater + dryer) (c) Table 402 4(18) shows that EHD 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 EHD size 18 has a capacity of 189 cfh (5 35 net In) (5) Seaton B(low pressure zone) (a) Distance from regulator to furnace is 15 feet (4572 min) (b) Load is 60 cfh (1 70 m'/k) (c) Table 402 4 (16) shows that EHD size 13 should be used (6) Seaton C (low pressure zone) (a) Distance from regulator to water heater is 10 feet (3048 min) �r�aw eo.m Sectl.n C w.rer heater aoam 2 psih sen4ar q llo saai.n x;ra ` - w.c. l „� n Dryer inn as Lerom of run.. A-1Wft MMangold B=tSfi C=10k ShwO.Ia 0=E5k cX G� P.... regulator Q G..etar FIGURE A 6 2 PIPING PLAN SHOWING CSST SYSTEM 146 2012 INTERNATIONAL FUEL GAS CODE' ! ! [ I [ rop..resrom.. er aoom. 111 .=1—PMawe--s . o�ffi— . oo�o .�+...a�e�,.,�..�arero m.sae.�omnmAa,m��mmawsuxxvmos®xeaeo� Mn�.we.re�okrA�rwoaorsexaxEFxmnrtC APPENDIX A 100760189 (b) Load is 30 cfh (0.85 m3/hr). (c) Table 402.4(16) shows that EHD size 13 should be used. (7) Section D (low pressure zone) (a) Distance from regulator to dryer is 25 feet (7620 mm). (b) Load is 20 cfh (0.57 m3/hr). (c) Table 402.4(16) shows that EHD size 13 should be used. A.6.3 Example 3: Branch length method. Determine 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 heating value of 1,000 Btu/ft3 (37.5 MJ/m3). Solution: (1) Section A (a) The length of tubing from the point of delivery to the most remote appliance is 50 feet (15 240 mm), A + C. (b) Use this longest length to size Sections A and C. (c) Using the row marked 50 feet (15 240 mm) in Table 402.4(10), Section A, supplying 220 cfh (6.2 m3/hr) for four appliances requires 1-inch tubing. (2) Section B (a) The length of tubing from the point of delivery to the range/oven at the end of Section B is 30 feet (9144 mm), A + B. (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 Fo—ol Range/oven 00 75 cfh Section B EC Section C Section A Section D M 220 cfh Water Section E 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 0 Gas meter E=10ft Total gas load = 220 cfh FIGURE A.6.3 PIPING PLAN SHOWING A COPPER TUBING SYSTEM (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 mm), 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 mm) in Table 402.4(10), Section C, supplying 30 cfh (0.85 m3/hr) for the dryer requires 3/8 inch tubing. (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 mm) , 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 m3/hr) for the water heater requires 3/8 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 mm) , A + E. (b) Use this branch length to size Section E only. (c) Using the row marked 30 feet (9144 mm) in Table 402.4(10), Section E, supplying 80 cfh (2.26 m3/hr) for the furnace requires 1/2-inch tubing. 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/ft3 (37.5 MJ/m3). Solution: (1) The length of pipe and CSST from the point of deliveryto the retrofit appliance (barbecue) at the end of Section G is 40 feet (12 192 mm), 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 m3/hr) 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 2012 INTERNATIONAL FUEL GAS CODE® 147 Cop-,ght @ 2011 ICC ALL RIGHTS RESERVED Accessed by + (-) O,de, Number' #100760189 ov Sep 30, 2019 02 03 PM (PDT) pins t to U...v e Ag.eem-t-th ICC No f,,threprod.,L,., vo f,,the, reproduct,ovs by avy th,,d pa,ty, o, d19t,l],.Loo -th--a Smgle — o.Iy, copT.g a d vetwockmg proh�]Ated 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 100760189 appliance has been added to the piping system (see A.6.1 for details). Barbecue 40 cfh 11 I1� ection G Section A Section B Section C Section E ESection F Section I I Water heater :urnace 30 cfh o 0 00 80 cfh Range/oven 75 cfh Length of runs: Key: A= 15 It E= 5 ft X Shut-off valve B = 10 ft F = 10 ft -1 Gas meter C=15ft G=15ft 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 VC). In accordance with local custom, the new pipingsys- temis 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 Pt T2 P2 where: Tl = Initial temperature, absolute (Tl + 459) Tz = Final temperature, absolute (Tz + 459) Pl = Initial pressure, psia (Pl + 14.7) Pz = Final pressure, psia (Pz + 14.7) (70 + 459) __ (20 + 14.7) (40 + 459) (Pz + 14.7) 529 34.7 499 (Pz + 14.7) (Pz + 14.7) x 529 = 34.7 499 (Pz + 14.7) x 34.7 1.060 PZ = 32.7 - 14.7 PZ = 18 psig Therefore, the gauge could be expected to register 18 psig (124 kPa) when the ambient temperature is 40°F (4°C). A.6.6 Example 6: Pressure drop per 100 feet of pipe method. Using the layout shown in Figure A.6.1 and AH pressure drop, in w.c. (27.7 in. H2O = 1 psi), proceed as fol- lows: (1) Length to A = 20 feet, with 35,000 Btu/hr. For '/z-inch pipe, AH= 20 fee`/too feet x 0.3 inch w.c. _ 0.06 in w.c. (2) Length to B = 15 feet, with 75,000 Btu/hr. For 3/4 inch pipe, AH = 15 feet/too feet x 0.3 inch w.c. _ 0.045 in w.c. (3) Section 1 = 10 feet, with 110,000 Btu/hr. Here there is a choice: For 1 inch pipe: AH- 10 feet/ 100feet x 0.2 inch w.c. = 0.02 in w.c. For 3/4 inch pipe: AH= 10 feet/100 feet x 10.5 inch w.c. + (110,000 Btu/hr-104,000 Btu/hr)/ x (1.0 inches (147,000 Btu/hr-104,000 Btu/hr) w.c. - 0.5 inch w.c.)] = 0.1 x 0.57 inch w.c.;z-, 0.06 inch W.C. Note that the pressure drop between 104,000 Btu/hr and 147, 000 Btu/hr has been interpolated as 110, 000 Btu/br. (4) Section 2 = 20 feet, with 135,000 Btu/hr. Here there is a choice: For 1-inch pipe: AH- 20 feet/100 feet x [0.2 inch w.c. + (14,000 Btu/hr)/(27 000 Btu/hr) x 0.1 inch w.c.] = 0.05 inch w.c. For 3/4 inch pipe: AH= 20 feet/100 feet x 1.0 inch w.c. = 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/br, but interpolation for the %-inch pipe (trivial for 104, 000 Btu/hr to 147, 000 Btu/br) was not used. (5) Section 3 = 30 feet, with 245,000 Btu/hr. Here there is a choice: For 1-inch pipe: AH- 30 feet/100 feet x 1.0 inches w.c. _ 0.3 inch w.c. For 11/4 inch pipe: AH = 30 feet/100 feet x 0.2 inch w.c. _ 0.06 inch w.c. Note that interpolation for these options is ignored since the table values are close to the 245, 000 Btu/hr carried by that section. (6) The total pressure drop is the sum of the section approaching A, Sections 1 and 3, or either of the following, depending on whether an absolute 148 2012 INTERNATIONAL FUEL GAS CODE® Cop-,ght @ 2011 ICC ALL RIGHTS RESERVED Accessed by (), (-) O,de, Number' #100760189 ov Sep 30, 2019 02 03 PM (PDT) pins t to U...v e Ag.eem-t-th ICC No fu,th,prod.,L,., vo fu,the, ' reproduct�ovsbya.ythadpa,ty,o,d�st,�but�ovauth,,�z,a Smgle-o.Iy,,,pT.ga dvetwockmg proh�]Ated ANY UNAUTHORIZED REPRODUCTION OR DISTRIBUTION ISA VIOLATION OF THE FEDERAL COPYRIGHT ACT AND THE LICENSE AGREEMENT, AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER APPENDIX A minimum is needed or the larger drop can be accommodated. Minimum pressure drop to farthest appliance: AH= 0.06 inch w.c. + 0.02 inch w.c. + 0.06 inch w.c. = 0.14 inch w.c. Larger pressure drop to the farthest appliance: AH= 0.06 inch w.c. + 0.06 inch w.c. + 0.3 inch w.c. _ 0.42 inch w.c. Notice that Section Z and the ran to B do not enterimo this calculation, provided that the appliances have similar inputpressure requirements. For SI units: 1 Btu/hr = 0.293 W, 1 cubic foot = 0.028 1113, 1 foot= 0.305 m, 1 inch w.c. = 249 Pa. 2012 INTERNATIONAL FUEL GAS CODE" 149 I " ' Co,gbtOO?.ot I ICC ALL RIGHTS RESERVED Awsedby().(-)O,d6 Nombsx1oovco189 oc SIP so.2.o19 oa.ws PM(PDT)p—Pot to IL eAg—mt,oUICC No FYUP,,eploddtoo.00 AYUP, (,,Fod,Yo¢ebymytl,dputy,o,ANb,to,au o,sd Single —oolym,ymg P,dortuodmgFokbad ANY VNAVTHORIVED REPRODUCTION REDISTRIBUTION IS A VIOLATION OF THE FEDERAL COPYRIGHT ACT AND THE LICENSE AGREEMENT, AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER 150 2012 INTERNATIONAL FUEL GAS CODE" Co,gbtOO ON I ICC ALL RIGHTS RESERVED Awsedby().(-)O[d6 Nombsx1oovco189 oc Sep SO, 201902 ws PM (PDT) pwmmtto IL eAg—mt,oUICC No FYUP ep,odmno—oAYUP, S I (eFodmYo,,bymytl,dputy,o,ANb�to,au o,sd Smglo mlympymg and-PyodmgFokbad ANY VNAVTHORIVED REPRODUCTION REDISTRIBUTION IS A VIOLATION OF THE ,EDORD, COPYRIGHT 11 AND THE LICENSE AGREEMENT, AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER 100760189 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.) 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 SI: 1 foot = 304.8 mm, 1 British thermal unit per hour = 0.2931 W. Table 504.2 (1) is used when sizing Type B double -wall gas vent connected directly to the appliance. Note: The appliance may 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 may 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) = 110,000 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. For SI: 1 foot = 304.8 mm, 1 British thermal unit per hour = 0.2931 W. Table 504.2 (2) is used when sizing a single -wall metal vent connector attached to a Type B double -wall gas vent. Note: The appliance may 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 2012 INTERNATIONAL FUEL GAS CODE® 151 Cop-,ght @ 2011 ICC ALL RIGHTS RESERVED Accessed by (), (-) O,de, Number' #100760189 ov Sep 30, 2019 02 03 PM (PDT) pins t to U...v e Ag.eem-t-th ICC No fu,threprod.,L,., vo fu,the, reprod,D,o by avy thad pa,ty, o, d19t,l],.Loo -th--a Smgle — o.Iy, copT.g a d vetwockmg proh�]Ated 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 100760189 TYPE GAS' CONP Table 504.2 (3) is used when 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 may 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 when 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 may 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-5 ASBESTOS CEMENT TYPE B OR SINGLE -WALL METAL VENT SYSTEM SERVING A SINGLE DRAFT -HOOD -EQUIPPED APPLIANCE VENT CAP TYPE B DOUBLE -WALL COMMON VENT CONNECTOR RISE 'R" TYPE B DOUBLE -WALL GAS VENT USED AS CONNECTORS Table 504.3 (1) is used when sizing Type B double -wall vent connectors attached to a Type B double -wall common vent. Note: Each appliance may 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 152 2012 INTERNATIONAL FUEL GAS CODE® Cop-ght @ 2011 ICC ALL RIGHTS RESERVED Accessed by (), (-) O,de, Number' #100760189 ov Sep 30, 2019 02 03 PM (PDT) pins t to U...v e Ag.eem-t-th ICC No fu,threprod.,Lov, vo fu,the, ' reproduct�ovsbya.ythadpa,ty,o,d�stc�but�ova.thoc�zed Smgle— ovly,copT.ga dvetwockmg proh�]Ated ANY UNAUTHORIZED REPRODUCTION OR DISTRIBUTION ISA 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 when sizing single -wall vent connectors attached to a Type B double -wall common vent. Note: Each appliance may 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 when 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 may 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 when 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 may 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 2012 INTERNATIONAL FUEL GAS CODE® 153 Copyright © 2011 ICC. ALL RIGHTS RESERVED. Accessed by Q, (-) Order Number #100760189 on Sep 30, 2019 02:03 PM (PDT) 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. APPENDIX B 100760189 TEE TEE SAME SIZE AS VENT CONNECTOR SEGMENT ABOVE '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 rR INCREASE VENT CONNECTOR SIZE IF NECESSARY ` BTU/H INPUT OTHERINPUTS FROM BELOW Example: Manifolded Common Vent Connector LMshall be no greater than 18 times the common vent connector manifold inside diameter; i.e., a 4-inch Vent connector size depends on: Common vent size depends on: (102 mm) inside diameter common vent connector manifold shall not exceed • Input • Combined inputs 72 inches (1829 mm) in length (see Section 504.3.4). • Rise • Available total height "H" Note: This is an illustration of a typical manifolded vent connector. Different • Available total height "H" • Table 504.3(1) common vent appliance, vent connector, or common vent types are possible. Consult • Table 504.3(1) connectors Section 502.3. FIGURE B-13 FIGURE B-11 MULTISTORY GAS VENT DESIGN PROCEDURE USE OF MANIFOLD COMMON VENT CONNECTOR FOR EACH SEGMENT OF SYSTEM Example: Offset Common Vent Note: This is an illustration of a typical 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 USE INDIVIDUAL VENT FOR TOP FLOOR APPLIANCE IF -LISTED CAP CONNECTOR REOUIREMENTFOR RISE OF TOTAL USE AVAILABLE TOTAL HEIGHT FC HEIGHT CANNOT TOP FLOOR APPLIANCE AND BE MET I AVAILABLE TOTAL COMBINE INPUT OF ALL APPLIAN HEIGHTFORTOP ON COMMON VENT FLOOR APPLIANCE USE VENT THIRD INTERCONNECTION TEE CONNECTORTABLE RISE AVAILABLE TOTAL HEIGHT AND THIRD -FLOOR APPLIANCE AND COMBINED INPUT OF THREE TOP FLOOR AVAILABLE TOTAL APPLIANCES (IF TOP FLOOR APPLIANCE 4 HEIGHT FOR APPLIANCE IS NOT CONNECTS THIRD -FLOOR MEASURED TOTAL HEIGHTTO APPLIANCE VENTTOP) USE VENT SECOND INTERCONNECTION T CONNECTORTABLE RISE AVAILABLE TOTAL USE AVAILABLE TOTAL HEIGHT HEIGHT FOR SECOND -FLOOR APPLIANCE Al THIRD FLOOR 3 SECOND -FLOOR COMBINED HEAT INPUT OF TW APPLIANCE APPLIANCE APPLIANCES FIRST INTERCONNECTION TEE USE VENT CONNECTORTABLE RISE DESIGN VENT CONNECTOR FOR FIR: SECOND -FLOOR 2 FLOOR APPLIANCE AS AN INDIVIDUA APPLIANCE VENT OF THIS TOTAL HEIGHT FOR IN OF FIRST FLOOR APPLIANCE TEE WITH CAP OPTIONAL FIRST -FLOOR ---� 1 I 'EACH INTERCONNECTION TEE IS SAME SIZE AS THE APPLIANCE 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 154 2012 INTERNATIONAL FUEL GAS CODE' 1111 I Copyright © 2011 ICC. ALL RIGHTS RESERVED. Accessed by (), (-) Order Number #100760189 on Sep 30, 2019 02:03 PM (PDT) pursuant to License Agreement with ICC. No further reproduction, no further l f 111 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. APPENDIX B 100760189 ft For SI: 1 foot = 304.8 mm, 1 British thermal unit per hour = 0.2931 W. FIGURE B-15 EXAMPLE 1 SINGLE DRAFT -HOOD -EQUIPPED A PLIANCE 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 next 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. For SI: 1 foot = 304.8 mm, 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 2/5 of the differ- ence between the 10-foot and 15-foot height values, or 77,000 + 2/5 (10,000) = 81,000 Btu per hour. Therefore, a 4- inch-diameter vent may be used in the installation. 2012 INTERNATIONAL FUEL GAS CODE' 155 ' + ' 0 Copyright© 201t ICC. ALL RIGHTS RESERVED. Accessed by (), (-) Order Number #100760199 on Sep 30, 2019 02:03 PM (PDT) 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. APPENDIX B 100760189 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 may 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 5-inch-diameter vent connector has a maximum vent capac- ity of 172,000 Btu per hour. Therefore, a 5-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 may be used without adjustments. DRAFT HOOD -EQUIPPED DRAFT HOOD -EQUIPMENT WATER HEATER FURNACE 35,000 BTU/H INPUT 150,000 BTU/H 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 5-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 5-inch common vent may 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 may be used without adjustments. Using the Vent Connector Capacity portion of Table 504.3(2), read down the Total Vent Height (I) column to 30 feet and read across the 2-foot Connector Rise (9 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 FIGURE B-18 EXAMPLE 5A COMMON VENTING A DRAFT HOOD WITH FAN -ASSISTED FURNACE INTO A TYPE B DOUBLE -WALL COMMON VENT 156 2012 INTERNATIONAL FUEL GAS CODE® Cop-,ght @ 2011 ICC ALL RIGHTS RESERVED Accessed by + (-) O,de, Number' tt10075o1a9 ov Sep 30, 2019 02 03 PM (PDT) pins t to U...v e Ag.eem-t-th ICC No fu,threprod.,L,., vo fu,the, ' reproduct�ovsbya.ythadpa,ty,o,d�stc�but�ova.thoc�zed Smgle—o.Iy,copT.ga dvetwockmg proh�]Ated ANY UNAUTHORIZED REPRODUCTION OR DISTRIBUTION ISA VIOLATION OF THE FEDERAL COPYRIGHT ACT AND THE LICENSE AGREEMENT, AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER APPENDIX B Btu per hour. Although this 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 rat- ing 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 (M column to 30 feet and across the 3-foot Connector Rise (M 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 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-inch 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 may 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 (M 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-inch common vent should be used in this example. Summary. In this example, the installer may 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- inch-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 tile -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 tile 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 (M column to 30 feet, and read across the 2-foot Connector Rise (M 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 (M column to 30 feet and across the 3-foot Connector Rise (M 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 504.3(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 no 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 times 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 tile 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: According to 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 HAP Chimney Liner Requirement. As in Example 5b, use the 63 square inch Internal Area columns for this size clay tile 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 2012 INTERNATIONAL FUEL GAS CODE" 157 I II I C,gbtOO?.o„ ICC ALL RIGHTS RESERVED A-P—dby().(-)O,d,,Nombsxlow6ole9 oc SIP V,201902OsPM(PDT)p—Pot to IL eAg—mt,oUICC No FYUPep,oddtoaoAYUP, (,,Fod,Yo¢tbymytl,dputy,o,ANb,to,au o,sd Single —ooly, mpymg Pod-Pyo,k,Fokbad ANY VNAVTHORIVED REPRODUCTION REDISTRIBUTION 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. According to Section 504.3.19, Table 504.3(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 (M column to 30 feet, and read across the 2-foot Connector Rise (M 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 (a column to 30 feet, and read across the 3-foot Connector Rise (M 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 504.3(1), read down the Vent Height (Fl) 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 110,000 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 EQUIVALENTSa NOMINAL LINERSIZE (inches) INSIDE DIMENSIONS OF LINER (inches) INSIDE DIAMETER OR EQUIVALENT DIAMETER (inches) EQUIVALENT AREA (square inches) 4 12.2 5 19.6 6 28.3 7 38.3 8 x 8 6'/4 x 6'/4 7.4 42.7 8 50.3 8 x 12 61/2 x 101/2 9 10 78.5 .5 12 x 12 91/4 x 9'/4 1 83.3 11 95 12 x 16 91/2 x 131/2 11.8 107.5 12 113.0 14 153.9 16x16 131/4x131/4 14.5 162.9 15 176.7 16x20 13x17 16.2 206.1 18 254.4 20 x 20 104 x 104 18.2 260.2 20 314.1 20 x 24 161/2 x 201/2 20.1 3 22 x 380.80.1 24 x 24 201/4 x 201/4 22.1 380.1 24 452.3 24 x 28 201/4 x 201/4 24.1 456.2 28 x 28 241/4 x 241/4 26.4 543.3 27 572.5 30 x 30 251/2 x 251/2 27.9 607 30 706.8 30 x 36 251/2 x 311/2 30.9 749.9 33 855.3 36 x 36 311/2 x 311/2 34.4 929.4 36 1017.9 For SI 1 inch= 25 4 ram, 1 square inch= 645 16 m' a Where liner sizes differ dimensionally from those shown in Table B-1, equivalent diameters may be determined from published tables for square and rectangular ducts of equivalent carrying capacity or by other engineedng methods 158 2012 INTERNATIONAL FUEL GAS CODE" " ' C,gbt@ ON I ICC ALL RIGHTS RESERVED A-P-d by ().(-)O[d6 Nombsx/00760/89 oc SIP SO,2019 oa. Os PM(PDT) p-Potto l»eAge mt,oUICC No FYUP ep,odw.noa oAYUP, S I ( lig olUto.. byzoyUbdparty.oPAxmbmoo UoFPd Single-mly mpymg Pod-PyodmgFokbUd ANY VNAVTHORIVED REPRODUCTION REDISTRIBUTION IS A VIOLATION OF THE ,EDORD, COPYRIGHT 11 AND THE LICENSE AGREEMENT, AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER APPENDIX B 100760189 u- U o t� r N u- (� u - t o U to T 2012 INTERNATIONAL FUEL GAS CODE® 159 Copy�ght @ 2011 ICC ALL RIGHTS RESERVED Accessed by (), (-) O,de, Number'—0760189 ov Sep 30, 2019 02 03 PM (PDT) pug —t to U...v e Ag.eem-t-th ICC No f-th—reprod-Lov, vo f-th, reproduct�ovsbya.ythadpa,ty,o,d�stc�but�ova.thoc�zed Smgle— ovly,copT.g-d-twockmgprohtbbed ANY UNAUTHORIZED REPRODUCTION OR DISTRIBUTION ISA VIOLATION OF THE FEDERAL COPYRIGHT ACT AND THE LICENSE AGREEMENT, AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER 160 2012 INTERNATIONAL FUEL GAS CODE" " ' C,gbtOO zoo I ICC ALL RIGHTS RESERVED Awsedby().(-)O[d6 Nombsx 100760189 oc SIP SO, 201902 Os PM (PDT) pwmmtto l»eAg—mt,oUICC No FYUP ep,odmno—oAYUP, S I ( �ep�odUt..lymyUb,dparty.oPAembmo—Uoosd Single—mly mpymg Pod-Pyodmgp,okb,Ad ANY VNAVTHORIVED REPRODUCTION REDISTRIBUTION IS A VIOLATION OF THE PEDERAL COPYRIGHT 11 AND THE LICENSE AGREEMENT, AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER APPENDIX C (IFGS) EXIT TERMINALS OF MECHANICAL DRAFT AND DIRECT -VENT VENTING SYSTEMS (This appendix is informative and is not part of the code.) CHANICAL DRAFT �T TERMINAL E SECTION 503.8, ITEM 1 ] DIRECT -VENT TERMINAL CLEARAN( MINIMUM CLEARANCE, C INPUT (BTU/HR) CLEARANCE 10,000 OR LESS 6 10,001 TO 50,000 9 OVER 50,000 12 [SEE SECTION 503.8, ITEM 3] LET 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 2012 INTERNATIONAL FUEL GAS CODE® 161 I Copyright © 2011 ICC. ALL RIGHTS RESERVED. Accessed by Q, (-) Order Number #100760189 on Sep 30, 2019 02:03 PM (PDT) pursuant to License Agreement with ICC. No further reproduction, no further 1 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. 162 2012 INTERNATIONAL FUEL GAS CODE" " ' C,gbtOO zoo I ICC ALL RIGHTS RESERVED Awsedby().(-)O[d6 Nombsx 100760189 oc SIP SO, 201902 Os PM (PDT) pwmmtto l»eAg—mt,oUICC No FYUP ep,odmno—oAYUP, S I ( �ep�odUt..lymyUb,dparty.oPAembmo—Uoosd Single—mly mpymg Pod-Pyodmgp,okb,Ad ANY VNAVTHORIVED REPRODUCTION REDISTRIBUTION IS A VIOLATION OF THE PEDERAL COPYRIGHT 11 AND THE LICENSE AGREEMENT, AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER APPENDIX D (IFGS) RECOMMENDED PROCEDURE FOR SAFETY INSPECTION OF AN 1WN1-31I►l[r1_1»Ir_1►lINQI►l6'1r_1IW_1IIs] ►lI (This appendix is informative and is not part of the code) The following procedure is intended as a guide to aid in 9. Determine that the pilot, where provided, is determining that an appliance is properly installed and is in a burning properly and that the main burner safe condition for continuing use. ignition is satisfactory by interrupting and This procedure is intended for cental furnace and boiler reestablishing the electrical supply to the installations and may not be applicable to all installations. appliance in any convenient manner. If the appliance is equipped with a continuous pilot, (a) This procedure should be performed prior to any test all pilot safety devices to determine if they attempt at modification of the appliance or of the are operating properly by extinguishing the installation. pilot when the main burner is off and (b) If it is determined that there is a condition that could determining, after 3 minutes, that the main result in unsafe operation, shut off the appliance and burner gas does not flow upon a call for heat. If advise the owner of the unsafe condition. The the appliance is not provided with a pilot, test following steps should be followed in making the for proper operation of the ignition system in safety inspection: accordance with the appliance manufacturer's lighting and operating instructions. 1 Conduct a check for gas leakage. (See Section 406.6) 10. Visually determine that the main burner gas is burning properly (i.e., no floating, lifting or 2. Visually inspect the venting system for proper flashback). Adjust the primary air shutters as size and horizontal pitch and determine there is required. If the appliance is equipped with high no blockage or restriction, leakage, corrosion and low flame controlling or flame modulation, and other deficiencies that could cause an check for proper main burner operation at low unsafe condition. flame. 3 Shut off all gas to the appliance and shut off 11. Test for spillage at the draft hood relief opening any other fuel -gas -burning appliancewithin the after 5 minutes of main burner operation. Use same room. Use the shutoff valve in the the flame of a match or candle or smoke. supply line to each appliance. 12. Turn on all other fuel -gas -burning appliances 4. Inspect burners and crossovers for blockage within the same room so they will operate at and corrosion. their full inputs. Follow lighting instructions 5. Furnace installations: Inspect the heat for each appliance. exchanger for cracks, openings or excessive 13. Repeat Steps 10 and 11 on the appliance being corrosion. inspected. 6. Boiler installations: Inspect for evidence of 14. Return doors, windows, exhaust fans, fireplace water or combustion product leaks. dampers and any other fuel -gas -burning 7. Close all building doors and windows and all appliance to their previous conditions of use. doors between the space in which the appliance 15. Furnace installations: Check both the limit is located and other spaces of the building that control and the fan control for proper operation. can be closed. Turn on any clothes dryers. Turn Limit control operation can be checked by on any exhaust fans, such as range hoods and blocking the circulating air inlet or temporarily bathroom exhausts, so they will operate at disconnecting the electrical supply to the maximum speed. Do not operate a summer blower motor and determining that the limit exhaust fan. Close fireplace dampers. If, after control acts to shut off the main burner gas. completing Steps 8 through 13, it is believed 16. Boiler installations: Verify that the water sufficient combustion air is not available, refer pumps are in operating condition. Test low to Section 304 of this code. water cutoffs, automatic feed controls, pressure 8. Place the appliance being inspected in and temperature limit controls and relief valves operation. Follow the lighting instructions. in accordance with the manufacturer's Adjust the thermostat so appliancewill operate recommendations to determine that they are in continuously. operating condition. 2012 INTERNATIONAL FUEL GAS CODE" 163 I I I I C,gbtOO?.ot I ICC ALL RIGHTS RESERVED Awsedby().(-)O,d,,Nombsx1oovco189 oc SIP so.2.o19 oa.ws PM(PDT)p—Pot to IL eAg—mt,oUICC No FYUP ep,oddto—oAYUP, (,,FodmYo¢ebymytl,dputy,o,ANb,to,au o,sd Smglo poly, mpymg Pod-Pyo,k,Fokbad ANY VNAVTHORIVED REPRODUCTION REDISTRIBUTION IS A VIOLATION OF THE FEDERAL COPYRIGHT ACT AND THE LICENSE AGREEMENT, AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER 164 2012 INTERNATIONAL FUEL GAS CODE" " ' C,gbtOO zoo I ICC ALL RIGHTS RESERVED Awsedby().(-)O[d6 Nombsx 100760189 oc SIP SO, 201902 Os PM (PDT) pwmmtto l»eAg—mt,oUICC No FYUP ep,odmno—oAYUP, S I ( �ep�odUt..lymyUb,dparty.oPAembmo—Uoosd Single—mly mpymg Pod-Pyodmgp,okb,Ad ANY VNAVTHORIVED REPRODUCTION REDISTRIBUTION IS A VIOLATION OF THE PEDERAL COPYRIGHT 11 AND THE LICENSE AGREEMENT, 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 202 Requirements 304 AIR-CONDITIONING EQUIPMENT 627 Clearances 3083 ALTERNATE MATERIALS AND METHODS 1052 APPLIANCES Broilers for indoor use 6235 Connections to building piping 411 Cooking 623 Decorative 602 Decorative vented 202, 3033, Table 503 4, 604 Domestic cooking 6233 Electrical 309 General Chapter 6 Installation Chapter 6 Listing 301 3 Prohibited locations 303 3, 623 2 Protection from vehicle impact 3034 BENDS, PIPE 405 BOILERS Existing installations Appendix D Listed 631 Prohibited locations 3033 Unlisted 632 BONDING 310 BUSHINGS 403 10 4, 404 5 F N11k111ETA ■11JNk11:1161 W Clearances 3084 Defined 202 Drain pans 3075 Existing installation Appendix D CERTIFICATES 1047 CERTIFICATION 401 10 CHIMNEYS 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 DRYERS 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 2012 INTERNATIONAL FUEL GAS CODE" 165 I II I Copy,gbt@zot I ICC ALL RIGHTS RESERVED Awsedby().(-)O,d,,Nombsx 100760189 oc Sep V,201902 os PM(PDT)p—Pot to IL eAgemt,oUICC No FYUPep,oddtoaoAYUP, (,,Fod,Yo¢ebymytl,dputy,o,ANb,to,au o,sd Single —oPIA mpymg PodortuodmgFokbad ANY VNAVTHORIVED REPRODUCTION REDISTRIBUTION IS A VIOLATION OF THE FEDERAL COPYRIGHT ACT AND THE LICENSE AGREEMENT, AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER INDEX _f DAMPERS, VENT 503 14, 503 15, 504 2 1, 504 3 1 DECORATIVE APPLIANCES 602,604 DECORATIVE SHROUDS 503 5 4, 503 6 4 1 DEFINITIONS Chapter 2 DIRECT VENT APPLIANCES Defined 202 Installation 3041,50323 DIVERSITY FACTOR 402 2, Appendix A DRAFT HOODS 202, 503 12 DUCT FURNACES 202,610 E ELECTRICAL BONDING 310 ELECTRICAL CONNECTIONS 3092 EXHAUST INTERLOCK 5051 1 EXHAUST SYSTEMS 202, 503 2 1, 503 3 4, 505 1 1 EXCESS FLOW VALVES 4104 F FEES 1065, 1066 FLASHBACK ARRESTOR 4104 FLOOD HAZARD 301 11 FLOOR FURNACES 609 FURNACES Central heating, clearance 308 3, 308 4 Duct 610 Floor 609 Prohibited location 3033 Vented wall 608 Warm -air 618 Cr 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 40261 Thread compounds 40393 LISTED AND LABELED APPLIANCES 301 3 LOG LIGHTERS 603 M 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 W OUTLET CLOSURES 40415 Outlet location 40416 OVERPRESSURE PROTECTION 416 OXYGEN DEPLETION SAFETY SYSTEM Defined 202 Unvented room heaters 303 3(3), 303 3(4), 621 6 166 2012 INTERNATIONAL FUEL GAS CODE" I I Copy,gbt@ ON I ICC ALL RIGHTS RESERVED Awsed by ().(-)O,d,,Nombsx 100760189 oc Sep SO, 201902 Os PM(PDT) p-Potto l»eAge mt,oUICC No FYUP ep,od Utoa oAYUP, riR S I ( [,Fod Uto,,by POVO d party. I, AeTbs �toc P,,Uood Single -oPIA mpymg Pod o Nyodpl mgokb,Ad ANY VNAVTHORIVED REPRODUCTION OR DISTRIBUTED N IS A VIOLATION OF THE FEDERAL COPYRIGHT 11 AND THE LICENSE AGREEMENT, AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER INDEX r PIPE SIZING..............................402 PIPING Bends..................................405 Bonding................................310 Changes in direction ....................... 405 Concealed locations ..................... 404.5 Identification ........................... 401.5 Installation..............................404 Inspection...............................406 Materials................................403 Maximum pressure ...................... 402.6 Plastic............ 403.6, 403.6.3, 403.11, 404.17 Prohibited penetrations and locations .................... 404.3, 404.6 Purging ............................... 406.7 Sediment traps ......................... 408.4 Sizing..................................402 Support.............................407,415 Testing.................................406 Tracer wire..........................404.17.3 POOL HEATERS ........................... 617 POWERS AND DUTIES OF THE CODE OFFICIAL ..................... 104 PRESSURE DROP ....................... 402.5 PROHIBITED INSTALLATIONS Elevator shafts ........................ 301.15 Floor furnaces .......................... 609.2 Fuel -burning appliances .................. 303.3 Piping in partitions ...................... 404.4 Plastic piping ......................... 404.17 Unvented room heater .............. 621.2, 621.4 PURGING .............................. 406.7 7 RADIANT HEATERS ........................ 630 RANGES, DOMESTIC ..................... 623.3 REFRIGERATORS ................... 501.8, 625 REGULATORS, PRESSURE ........... 410, 628.4 RISERS, ANODELESS ................... 403.6.1 ROOFTOP INSTALLATIONS ............... 306.5 ROOM HEATERS Defined.................................202 Location .............................. 303.3 Unvented...............................621 Vented.................................622 S SAFETY SHUTOFF DEVICES Flame safeguard device .................. 602.2 Unvented room heaters .................. 621.6 SAUNA HEATERS ......................... 615 SCOPE ................................. 101.2 SCOPE AND ADMINISTRATION ......... Chapter 1 Alternate materials and methods ........... 105.2 Appeals.................................109 Certificates ............................ 104.7 Conflicts .............................. 102.1 Connection of utilities .................... 107.6 Construction documents.................106.3.1 Duties and powers of code official ............ 104 Fees ............................ 106.5,106.6 Inspections and testing .......... 104.4, 106.4, 107 Liability ............................... 103.4 Modifications ........................... 105.1 Permits.................................106 Referenced codes and standards........... 102.8 Requirements not covered by code ......... 102.9 Severability ............................ 101.5 Scope ................................ 101.2 Temporary equipment ...................... 110 Title .................................. 101.1 Violations and penalties .................... 108 SEDIMENT TRAP ........................ 408.4 SEISMIC RESISTANCE .................. 301.12 SERVICE SPACE ..........................306 SHUTOFF VALVES .........................409 SPA HEATERS ............................617 STANDARDS ......................... Chapter 8 STRUCTURAL SAFETY ..................... 302 SUPPORTS, PIPING .................... 407, 415 11 TEMPORARY EQUIPMENT .................. 110 TESTING ................................. 107 THIMBLE, VENT ............... 503.7.7, 503.10.11 THREADS Damaged............................403.9.1 Specifications .......................... 403.9 TOILETS, GAS -FIRED ...................... 626 TUBING JOINTS .......................403.10.2 2012 INTERNATIONAL FUEL GAS CODE" 167 I I1 I Copy,gbtOO?.o„ ICC ALL RIGHTS RESERVED A-P-dby().(-)O,d,,Nombsxlowcole9 oc SIP V,2o19 oa.os PM(PDT)p-Pot to IL eAgemt,oUICC No FYUPep,oddtoaoAYUP, (,,Fod,Yo¢tbymytl,dputy,o,ANb,to,au o,sd Single -oPIA mpymg PodortuodmgFokbad ANY VNAVTHORIVED REPRODUCTION REDISTRIBUTION IS A VIOLATION OF THE FEDERAL COPYRIGHT ACT AND THE LICENSE AGREEMENT, AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER INDEX UNIT HEATERS 620 UNLISTED BOILERS 632 UNSAFE CHIMNEYS 503563 UNVENTED ROOM HEATERS 621 UNDERGROUND PENETRATIONS 4046 MA VALIDITY 10652 VALVES, MULTIPLE HOUSE LINES 4093 VALVES, SHUTOFF Appliances 409 5 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 50366 Direct vent 50323 Exhaust hoods 5051 1, 50334 Gas vent termination 50364 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 Multi -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 10 168 2012 INTERNATIONAL FUEL GAS CODE" I I Copy,gbt@ ON I ICC ALL RIGHTS RESERVED Awsed by ().(-)O,d,,Nombsx 100760189 oc Sep SO, 201902 Os PM(PDT) p—Potto l»eAge mt,oUICC No FYUP ep,od Utoa oAYUP, riR S I ( [,Fod Uto,,by POVO d party. I, AeTbs �toc P,,Uood Single —oPIA mpymg Pod o Nyodpl mgokb,Ad ANY VNAVTHORIVED REPRODUCTION OR DISTRIBUTED N IS A VIOLATION OF THE FEDERAL COPYRIGHT 11 AND THE LICENSE AGREEMENT, AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER EDITORIAL CHANGES - SECOND PRINTING Page 29, Section 402.4: line two now reads ... through 402.4(37) are used to size piping or tubing, the pipe EDITORIAL CHANGES - THIRD PRINTING Page 77, Section T] 412.6: now reads ... In addition to the fuel dispensing requirements of the International Fire Code, the point of transfer for dispensing operations shall be 25 feet (7620 mm) or more from buildings having combustible exterior wall surfaces, buildings having noncombustible exterior wall surfaces that are not part of a 1-hour fire -resistance -rated assembly, buildings having combustible overhangs, lot lines of property that could be built on, public streets, sidewalks and railroads; and at least 10 feet (3048 mm) from driveways and buildings having noncombustible exterior wall surfaces that are part of a fire - resistance -rated assembly having a rating of 1 hour or more. IIII]YI[Y]NI\I[NIT\�[IIIG��111.71YlYYNI�YYI�[ Page 139, Section A.2.1: first paragraph now reads ... A.2.1 General. The quantity of gas to be provided at each outletshould be determined, whenever possible, directly from the manufacturer's gas input Btu/h rating of the appliance that will be installed adjusted for altitude where appropriate. In the case where the ratings of the appliances to be installed are not known, Table 402.2 shows the approximate consumption (in Btu per hour) of certain types of typical household appliances. Page 139, Section A.2.2: line 4 now reads ... and lengths are shown in Tables 402.4(1) through 402.4(4) Page 139, Section A.2.2: line 8 now reads ... steel tubing. Tables 402.4(1) and 402.4(8) are based upon a Page 142, Section A.3.1: line 6 now reads ... 402.4(25) through 402.4(36) are to be used to select 2012 INTERNATIONAL FUEL GAS CODE® 169 I II I C,gbtOO?.ot I ICC ALL RIGHTS RESERVED Awsedby().(-)O,d,,Nombsx 100760189 oc Sep so.2.o19 oa.Os PM(PDT)p—Pot to IL eAg—mt,oUICC No FYUPep,oddtoaoAYUP, (,,Fod,Yo¢ebymytl,dputy,o,ANb,to,au o,sd Single —ooly, mpymg Pod-Pyo,k,Fokbad ANY VNAVTHORIVED REPRODUCTION REDISTRIBUTION IS A VIOLATION OF THE FEDERAL COPYRIGHT ACT AND THE LICENSE AGREEMENT, AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER 170 2012 INTERNATIONAL FUEL GAS CODE® Co,gbtOO ON I ICC ALL RIGHTS RESERVED Awsedby().(-)O[d6 Nombsx1oovco189 oc Sep SO, 201902 ws PM (PDT) pwmmtto IL eAg—mt,oUICC No FYUP ep,odmno—oAYUP, S I (eFodmYo,,bymytl,dputy,o,ANb�to,au o,sd Smglo mlympymg and-PyodmgFokbad ANY VNAVTHORIVED REPRODUCTION REDISTRIBUTION IS A VIOLATION OF THE ,EDORD, COPYRIGHT 11 AND THE LICENSE AGREEMENT, AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER tight lob market Imagine... increasingyour code knowledge and sharpen ingyourlobskills with special member discounts on • World -class training and educational programs to help you keep your competitive edge while earning CE Us and LUs • The latest code -related news to enhance your career potential • Member Discounts on code books, CDs, specialized publications, and training materials to help you stay on top of the latest code changes and become more valuable to your organ ization PLUS —having exclusive access to code opinions from experts to answer your code -related questions Imagine... extra benefits such as Member -Only privileged access to peers in online discussion groups as well as access to the industry's leading periodical, the Budding Safety Journal Online' Imagine... receiving these valuable discounts, benefits, and more by simply becoming a member of the nation's leading developer of building safety codes, the International Code Council' _ Free code book(s) — New members receive a free book or set of books (depending on membership category) from the latest, edition of the International Codes JOIN TODAY! 888-ICC-SAFE, x3380 membert.a iccsafe.org www.iccsafe.org 11-04304 Cop I@mudu, aoo011SI,�=1TMawI——A®,.1,..w��« .gym.. eT,.,�.�aNro emaa.�a., e.�omnm Aa, m��mma .re�M oa��na000moNosou-re�eunoNMAVI0=0NOEnff MnmA,.we.re�o�rrANrwAnffM Ao rr ArmATreJr CIVILArm� wewu'�us' xeuemm Most Widely Accepted and Trusted V� ICC EVALUATION SERVICE ICC-ES PLUMBING, MECHANICAL, AND FUEL GAS (PMG) LISTING PROGRAM ICC-ES PMG listings determine whether plumbing, mechanical or fuelgas product complies with applicable codes and standards. Accepted nationwide. Conducted under astringent quality assurance program. Peerless speed and customer service. Customers save when transferri ng to 'r an ICC-ES PMG Listing. - Accredited byAmerican National i Standards Institute (ANSI). Look for the mark of conformity. For more information, contact us at es(aNcc-es.org or call 1.800.423.6587(0643). www.icc-es.org io-oaeia Learn and apply Plumbing, Mechanical, and Fuel Gas codes For code officials looks ng to ensu re proper interpretation and application of the International Residential Code, International Plumbing Code, International Mechanical Code, and the International Fuel Gas Code, ICC Training is the solution ICC helps code professionals master the codes and manufacturers ensure their products meet relevant codes and standards e Y Enforcement officials, product manufacturers, architects, engineers, and contractors all turn to ICC— the leader in PMG codes -for information, certification, training, and guidance on code compliance and sustainability ICC offers Semmars, Institutes, and Webmars designed to keep code professionals up -to -speed on emerging issues Continuing Education Units (CEUs) are awarded and recognized in many states Masterthe PMG codeswith ICC Training and Education! For more information on ICC training, visit www.iccsafe.org/Education or caii 1-888-422-7233, ext. 33818. mpxglaomumc ai ®iEx QOooiex.m�b.wrema®.aeso»�em @dDwemsmwre�axsresanwoWam xo brepvAwm�w repvs,mm.xMam'Yvede�x'��. � �+�d �zuffi m�lxmewavtlummlyewn+0.mi isrc ueavmouzfn PFPAOOUCf10NOAO6111®unox�sxnounoxoe'�t¢ mnsaawevuoiixcsam''�t¢u�rsexms�rnwiimmsuelscs'maw.imm®nnwueervu'ms'�tm�smmsn Valuable Guides to Changes in the 2012 I -Codes° NEW! SIGNIFICANT CHANGES TO THE 2012 INTERNATIONAL CODES° Valuable, praclicalresourcesforanyoneussngthe Internationalrodesi Each book offers a comprehensive analysis of the critical changes made between the 2009 and 2012 editions of the codes Changes are identified then followed by in-depth discussion of how the change affects real -world application Coverage reflects provisions with special significance, including new and innovative design ideas and technologies, modern materials and methods of construction, and current approaches to safety and stability Authored by ICC code experts, these useful tools are "must -have" guides to the many important changes in the2012 International Codes ITIO EDITIONS • •.A.91�i ALSO AVAILABLE SIGNIFICANT CHANGES TO THE SIGNIFICANT CHANGES TO THE INTERNATIONAL BUILDING CODE, INTERNATIONAL FIRE CODE, 2012 EDITION 2012 EDITION AuthorScott Stookey Authors Doug Thornburg, Jay Woodward and #7404512 John Henry #7024512 SIGNIFICANT CHANGES TO THE INTERNATIONAL PLUMBING CODE/ SIGNIFICANT CHANGES TO THE INTERNATIONAL MECHANICAL CODE/ INTERNATIONAL RESIDENTIAL CODE, INTERNATIONAL FUEL GAS CODE, 2012 EDITION 2012 EDITION AuthorStephenA Van Note Authors Robert Guenther and Lee Clifton =7101512 =7202512 ORDER YOUR HELPFUL GUIDES TODAY! 1-800-786-4452 1 www.iccsafe.org/store