Page 562 - 2018_IRC

Part VI—Fuel Gas

CHAPTER 24
FUEL GAS

The text of this chapter is extracted from the 2018 edition of the International Fuel Gas Code and
has been modified where necessary to conform to the scope of application of the International Residential
Code for One- and Two-Family Dwellings. The section numbers appearing in parentheses after each
section number are the section numbers of the corresponding text in the International Fuel Gas Code.

User notes:
About this chapter: Chapter 24 addresses fuel gas piping, appliances, combustion air, appliance venting and specific appliances, among
other subjects. Note that Chapter 24 includes definitions that are unique to this chapter. The text of this chapter is identical to that of the Inter-

national Fuel Gas Code , except that this chapter contains coverage only for that which is typically found in residential occupancies, consis-
tent with the scope of this code.
Code development reminder: Code change proposals to this chapter will be considered by the IRC—Plumbing/Mechanical Code Develop-
ment Committee during the 2018 (Group A) Code Development Cycle. See explanation on page iv.

SECTION G2401 (101) nances used by the serving gas supplier in the distribu-
GENERAL tion of gas, other than undiluted LP-gas.
G2401.1 (101.2) Application. This chapter covers those fuel 4. Portable LP-gas appliances and equipment of all types
gas piping systems, fuel-gas appliances and related accesso- that is not connected to a fixed fuel piping system.
ries, venting systems and combustion air configurations most
commonly encountered in the construction of one- and two- 5. Portable fuel cell appliances that are neither connected
family dwellings and structures regulated by this code. to a fixed piping system nor interconnected to a power
grid.
Coverage of piping systems shall extend from the point of
delivery to the outlet of the appliance shutoff valves (see defi- 6. Installation of hydrogen gas, LP-gas and compressed
nition of “Point of delivery”). Piping systems requirements natural gas (CNG) systems on vehicles.
shall include design, materials, components, fabrication,
assembly, installation, testing, inspection, operation and
maintenance. Requirements for gas appliances and related SECTION G2402 (201)
accessories shall include installation, combustion and ventila- GENERAL
tion air and venting and connections to piping systems. G2402.1 (201.1) Scope. Unless otherwise expressly stated,
The omission from this chapter of any material or method the following words and terms shall, for the purposes of this
of installation provided for in the International Fuel Gas chapter, have the meanings indicated in this chapter.
Code shall not be construed as prohibiting the use of such G2402.2 (201.2) Interchangeability. Words used in the
material or method of installation. Fuel-gas piping systems, present tense include the future; words in the masculine gen-
fuel-gas appliances and related accessories, venting systems der include the feminine and neuter; the singular number
and combustion air configurations not specifically covered in includes the plural and the plural, the singular.
these chapters shall comply with the applicable provisions of
the International Fuel Gas Code. G2402.3 (201.3) Terms defined in other codes. Where
terms are not defined in this code and are defined in the Inter-
Gaseous hydrogen systems shall be regulated by Chapter 7 national Building Code, International Fire Code, Interna-
of the International Fuel Gas Code. tional Mechanical Code, International Fuel Gas Code or
This chapter shall not apply to the following: International Plumbing Code, such terms shall have mean-
ings ascribed to them as in those codes.
1. Liquified natural gas (LNG) installations.
2. Temporary LP-gas piping for buildings under construc-
tion or renovation that is not to become part of the per- SECTION G2403 (202)
manent piping system. GENERAL DEFINITIONS
3. Except as provided in Section G2412.1.1, gas piping, ACCESS (TO). That which enables a device, appliance or
meters, gas pressure regulators, and other appurte- equipment to be reached by ready access or by a means that

2018 INTERNATIONAL RESIDENTIAL CODE ® 537
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