ADOPTS WITH AMENDMENTS:

International Residential Code 2015 (IRC 2015)

Part I — Administrative

Part II — Definitions

Part III — Building Planning and Construction

Part IV — Energy Conservation

Part V — Mechanical

Part VI — Fuel Gas

Part VII — Plumbing

Part VIII — Electrical

Part IX — Referenced Standards

Heads up: There are no amended sections in this chapter.

Chapter 24 Fuel Gas

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All fuel gas piping installations shall comply with rule 661—301.9(103A).

UpCodes note: According to CHAPTER 301 STATE BUILDING CODE—GENERAL PROVISIONS:

661—301.9(103A) Fuel gas piping requirements. Fuel gas piping shall comply with the requirements of rule 641—25.3(105) and NFPA 54, ANSI Z223.1-2012, National Fuel Gas Code, 2012 Edition, published by the National Fire Protection Association, 1 Batterymarch Park, Quincy, MA 02169-7471.
[ARC 8305B, IAB 11/18/09, effective 1/1/10; ARC 2492C, IAB 4/13/16, effective 5/18/16]

Section G2401 (101) General

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G2401.1 (101.2) Application

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Section G2402 (201) General

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G2402.1 (201.1) Scope

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G2402.2 (201.2) Interchangeability

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G2402.3 (201.3) Terms Defined in Other Codes

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Section G2403 (202) General Definitions

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Section G2404 (301) General

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G2404.1 (301.1) Scope

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G2404.2 (301.1.1) Other Fuels

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G2404.3 (301.3) Listed and Labeled

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G2404.4 (301.8) Vibration Isolation

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G2404.5 (301.9) Repair

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G2404.6 (301.10) Wind Resistance

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G2404.7 (301.11) Flood Hazard

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G2404.8 (301.12) Seismic Resistance

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G2404.9 (301.14) Rodentproofing

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G2404.10 (307.5) Auxiliary Drain Pan

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G2404.11 (307.6) Condensate Pumps

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Section G2405 (302) Structural Safety

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G2405.1 (302.1) Structural Safety

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G2405.2 (302.4) Alterations to Trusses

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G2405.3 (302.3.1) Engineered Wood Products

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Section G2406 (303) Appliance Location

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G2406.1 (303.1) General

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G2406.2 (303.3) Prohibited Locations

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G2406.3 (303.6) Outdoor Locations

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Section G2407 (304) Combustion, Ventilation and Dilution Air

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G2407.1 (304.1) General

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G2407.2 (304.2) Appliance Location

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G2407.3 (304.3) Draft Hood/Regulator Location

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G2407.4 (304.4) Makeup Air Provisions

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G2407.5 (304.5) Indoor Combustion Air

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G2407.5.1 (304.5.1) Standard Method

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G2407.5.2 (304.5.2) Known Air-Infiltration-Rate Method

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G2407.5.3 (304.5.3) Indoor Opening Size and Location

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G2407.5.3.1 (304.5.3.1) Combining Spaces on the Same Story

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G2407.5.3.2 (304.5.3.2) Combining Spaces in Different Stories

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G2407.6 (304.6) Outdoor Combustion Air

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G2407.6.1 (304.6.1) Two-Permanent-Openings Method

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G2407.6.2 (304.6.2) One-Permanent-Opening Method

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G2407.7 (304.7) Combination Indoor and Outdoor Combustion Air

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G2407.7.1 (304.7.1) Indoor Openings

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G2407.7.2 (304.7.2) Outdoor Opening Location

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G2407.7.3 (304.7.3) Outdoor Opening(s) Size

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G2407.8 (304.8) Engineered Installations

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G2407.9 (304.9) Mechanical Combustion Air Supply

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G2407.9.1 (304.9.1) Makeup Air

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G2407.9.2 (304.9.2) Appliance Interlock

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G2407.9.3 (304.9.3) Combined Combustion Air and Ventilation Air System

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G2407.10 (304.10) Louvers and Grilles

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G2407.11 (304.11) Combustion Air Ducts

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G2407.12 (304.12) Protection From Fumes and Gases

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Section G2408 (305) Installation

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G2408.1 (305.1) General

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G2408.2 (305.3) Elevation of Ignition Source

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G2408.2.1 (305.3.1) Installation in Residential Garages

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G2408.3 (305.5) Private Garages

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G2408.4 (305.7) Clearances From Grade

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G2408.5 (305.8) Clearances to Combustible Construction

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G2408.6 (305.12) Avoid Strain on Gas Piping

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Section G2409 (308) Clearance Reduction

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G2409.1 (308.1) Scope

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G2409.2 (308.2) Reduction Table

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G2409.3 (308.3) Clearances for Indoor Air-Conditioning Appliances

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G2409.3.1 (308.3.1) Appliances Clearances

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G2409.3.2 (308.3.2) Clearance Reduction

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G2409.3.3 (308.3.3) Plenum Clearances

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G2409.3.4 (308.3.4) Clearance From Supply Ducts

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G2409.4 (308.4) Central Heating Boilers and Furnaces

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G2409.4.1 (308.4.1) Appliances Clearances

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G2409.4.2 (308.4.2) Clearance Reduction

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G2409.4.3 (308.4.4) Plenum Clearances

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G2409.4.4 (308.4.5) Clearance From Supply Ducts

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G2409.4.5 (308.4.3) Clearance for Servicing Appliances

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Section G2410 (309) Electrical

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G2410.1 (309.1) Grounding

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G2410.2 (309.2) Connections

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Section G2411 (310) Electrical Bonding

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G2411.1 (310.1) Pipe and Tubing Other Than CSST

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G2411.1.1 (310.1.1) CSST

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G2411.1.1.1 (310.1.1.1) Point of Connection

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G2411.1.1.2 (310.1.1.2) Size and Material of Jumper

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G2411.1.1.3 (310.1.1.3) Bonding Jumper Length

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G2411.1.1.4 (310.1.1.4) Bonding Connections

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G2411.1.1.5 (310.1.1.5) Connection Devices

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Section G2412 (401) General

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G2412.1 (401.1) Scope

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G2412.1.1 (401.1.1) Utility Piping Systems Located Within Buildings

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G2412.2 (401.2) Liquefied Petroleum Gas Storage

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G2412.3 (401.3) Modifications to Existing Systems

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G2412.4 (401.4) Additional Appliances

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G2412.5 (401.5) Identification

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G2412.6 (401.6) Interconnections

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G2412.7 (401.7) Piping Meter Identification

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G2412.8 (401.8) Minimum Sizes

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G2412.9 (401.9) Identification

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G2412.10 (401.10) Third-Party Testing and Certification

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Section G2413 (402) Pipe Sizing

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G2413.1 (402.1) General Considerations

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G2413.2 (402.2) Maximum Gas Demand

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G2413.3 (402.3) Sizing

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G2413.4 (402.4) Sizing Tables and Equations

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G2413.4.1 (402.4.1) Longest Length Method

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G2413.4.2 (402.4.2) Branch Length Method

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G2413.4.3 (402.4.3) Hybrid Pressure

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G2413.5 (402.5) Allowable Pressure Drop

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G2413.6 (402.6) Maximum Design Operating Pressure

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G2413.6.1 (402.6.1) Liquefied Petroleum Gas Systems

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Section G2414 (403) Piping Materials

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G2414.1 (403.1) General

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G2414.2 (403.2) Used Materials

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G2414.3 (403.3) Other Materials

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G2414.4 (403.4) Metallic Pipe

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G2414.4.1 (403.4.1) Cast Iron

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G2414.4.2 (403.4.2) Steel

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G2414.5 (403.5) Metallic Tubing

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G2414.5.1 (403.5.1) Steel Tubing

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G2414.5.2 (403.5.2) Copper Copper Alloy Tubing

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G2414.5.3 (403.5.4) Corrugated Stainless Steel Tubing

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G2414.6 (403.6) Plastic Pipe, Tubing and Fittings

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G2414.6.1 (403.6.1) Anodeless Risers

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G2414.6.2 (403.6.2) LP-gas Systems

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G2414.6.3 (403.6.3) Regulator Vent Piping

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G2414.7 (403.7) Workmanship and Defects

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G2414.8 (403.8) Protective Coating

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G2414.9 (403.9) Metallic Pipe Threads

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G2414.9.1 (403.9.1) Damaged Threads

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G2414.9.2 (403.9.2) Number of Threads

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G2414.9.3 (403.9.3) Thread Joint Compounds

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G2414.10 (403.10) Metallic Piping Joints and Fittings

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G2414.10.1 (403.10.1) Pipe Joints

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G2414.10.2 (403.10.2) Tubing Joints

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G2414.10.3 (403.10.3) Flared Joints

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G2414.10.4 (403.10.4) Metallic Fittings

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G2414.11 (403.11) Plastic Piping, Joints and Fittings

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Section G2415 (404) Piping System Installation

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G2415.1 (404.1) Installation of Materials

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G2415.2 (404.2) CSST

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G2415.3 (404.3) Prohibited Locations

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G2415.4 (404.4) Piping in Solid Partitions and Walls

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G2415.5 (404.5) Fittings in Concealed Locations

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G2415.6 (404.6) Underground Penetrations Prohibited

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G2415.7 (404.7) Protection Against Physical Damage

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G2415.7.1 (404.7.1) Piping Through Bored Holes or Notches

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G2415.7.2 (404.7.2) Piping Installed in Other Locations

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G2415.7.3 (404.7.3) Shield Plates

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G2415.8 (404.8) Piping in Solid Floors

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G2415.8.1 (404.8.1) Conduit With One End Terminating Outdoors

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G2415.8.2 (404.8.2) Conduit With Both Ends Terminating Indoors

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G2415.9 (404.9) Above-Ground Piping Outdoors

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G2415.10 (404.10) Isolation

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G2415.11 (404.11) Protection Against Corrosion

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G2415.11.1 (404.11.1) Prohibited Use

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G2415.11.2 (404.11.2) Protective Coatings and Wrapping

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G2415.12 (404.12) Minimum Burial Depth

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G2415.12.1 (404.12.1) Individual Outside Appliances

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G2415.13 (404.13) Trenches

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G2415.14 (404.14) Piping Underground Beneath Buildings

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G2415.14.1 (404.14.1) Conduit With One End Terminating Outdoors

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G2415.14.2 (404.14.2) Conduit With Both Ends Terminating Indoors

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G2415.15 (404.15) Outlet Closures

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G2415.16 (404.16) Location of Outlets

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G2415.17 (404.17) Plastic Pipe

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G2415.17.1 (404.17.1) Limitations

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G2415.17.2 (404.17.2) Connections

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G2415.17.3 (404.17.3) Tracer

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G2415.18 (404.18) Pipe Cleaning

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G2415.19 (404.19) Prohibited Devices

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G2415.20 (404.20) Testing of Piping

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Section G2416 (405) Piping Bends and Changes in Direction

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G2416.1 (405.1) General

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G2416.2 (405.2) Metallic Pipe

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G2416.3 (405.3) Plastic Pipe

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Section G2417 (406) Inspection, Testing and Purging

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G2417.1 (406.1) General

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G2417.1.1 (406.1.1) Inspections

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G2417.1.2 (406.1.2) Repairs and Additions

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G2417.1.3 (406.1.3) New Branches

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G2417.1.4 (406.1.4) Section Testing

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G2417.1.5 (406.1.5) Regulators and Valve Assemblies

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G2417.1.6 (406.1.6) Pipe Clearing

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G2417.2 (406.2) Test Medium

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G2417.3 (406.3) Test Preparation

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G2417.3.1 (406.3.1) Expansion Joints

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G2417.3.2 (406.3.2) Appliance and Equipment Isolation

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G2417.3.3 (406.3.3) Appliance and Equipment Disconnection

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G2417.3.4 (406.3.4) Valve Isolation

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G2417.3.5 (406.3.5) Testing Precautions

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G2417.4 (406.4) Test Pressure Measurement

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G2417.4.1 (406.4.1) Test Pressure

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G2417.4.2 (406.4.2) Test Duration

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G2417.5 (406.5) Detection of Leaks and Defects

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G2417.5.1 (406.5.1) Detection Methods

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G2417.5.2 (406.5.2) Corrections

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G2417.6 (406.6) Piping System and Equipment Leakage Check

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G2417.6.1 (406.6.1) Test Gases

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G2417.6.2 (406.6.2) Before Turning Gas On

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G2417.6.3 (406.6.3) Leak Check

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G2417.6.4 (406.6.4) Placing Appliances and Equipment in Operation

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G2417.7 (406.7) Purging

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G2417.7.1 (406.7.1) Piping Systems Required to Be Purged Outdoors

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G2417.7.1.1 (406.7.1.1) Removal From Service

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G2417.7.1.2 (406.7.1.2) Placing in Operation

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G2417.7.1.3 (406.7.1.3) Outdoor Discharge of Purged Gases

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G2417.7.1.4 (406.7.1.4) Combustible Gas Indicator

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G2417.7.2 (406.7.2) Piping Systems Allowed to Be Purged Indoors or Outdoors

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G2417.7.2.1 (406.7.2.1) Purging Procedure

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G2417.7.2.2 (406.7.2.2) Combustible Gas Detector

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G2417.7.3 (406.7.3) Purging Appliances and Equipment

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Section G2418 (407) Piping Support

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G2418.1 (407.1) General

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G2418.2 (407.2) Design and Installation

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Section G2419 (408) Drips and Sloped Piping

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G2419.1 (408.1) Slopes

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G2419.2 (408.2) Drips

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G2419.3 (408.3) Location of Drips

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G2419.4 (408.4) Sediment Trap

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Section G2420 (409) Shutoff Valves

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G2420.1 (409.1) General

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G2420.1.1 (409.1.1) Valve Approval

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G2420.1.2 (409.1.2) Prohibited Locations

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G2420.1.3 (409.1.3) Access to Shutoff Valves

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G2420.2 (409.2) Meter Valve

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G2420.3 (409.3.2) Individual Buildings

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G2420.4 (409.4) MP Regulator Valves

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This section has been amended at the state or city level.

G2420.5 (409.5) Appliance Shutoff Valve

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G2420.5.1 (409.5.1) Located Within Same Room

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G2420.5.2 (409.5.2) Vented Decorative Appliances and Room Heaters

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G2420.5.3 (409.5.3) Located at Manifold

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Section G2421 (410) Flow Controls

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G2421.1 (410.1) Pressure Regulators

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G2421.2 (410.2) MP Regulators

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G2421.3 (410.3) Venting of Regulators

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G2421.3.1 (410.3.1) Vent Piping

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G2421.4 (410.4) Excess Flow Valves

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G2421.5 (410.5) Flashback Arrestor Check Valve

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Section G2422 (411) Appliance Connections

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G2422.1 (411.1) Connecting Appliances

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G2422.1.1 (411.1.2) Protection From Damage

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G2422.1.2 (411.1.3) Connector Installation

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G2422.1.2.1 (411.1.3.1) Maximum Length

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G2422.1.2.2 (411.1.3.2) Minimum Size

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G2422.1.2.3 (411.1.3.3) Prohibited Locations and Penetrations

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G2422.1.2.4 (411.1.3.4) Shutoff Valve

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G2422.1.3 (411.1.5) Connection of Gas Engine-Powered Air Conditioners

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G2422.1.4 (411.1.6) Unions

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G2422.1.5 (411.1.4) Movable Appliances

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G2422.2 (411.3) Suspended Low-Intensity Infrared Tube Heaters

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Section G2423 (413) Compressed Natural Gas Motor Vehicle Fuel-Dispensing Facilities

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G2423.1 (413.1) General

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Section G2424 (415) Piping Support Intervals

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G2424.1 (415.1) Interval of Support

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Section G2425 (501) General

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G2425.1 (501.1) Scope

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G2425.2 (501.2) General

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G2425.3 (501.3) Masonry Chimneys

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G2425.4 (501.4) Minimum Size of Chimney or Vent

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G2425.5 (501.5) Abandoned Inlet Openings

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G2425.6 (501.6) Positive Pressure

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G2425.7 (501.7) Connection to Fireplace

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G2425.7.1 (501.7.1) Closure and Access

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G2425.7.2 (501.7.2) Connection to Factory-Built Fireplace Flue

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G2425.7.3 (501.7.3) Connection to Masonry Fireplace Flue

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G2425.8 (501.8) Appliances Not Required to Be Vented

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G2425.9 (501.9) Chimney Entrance

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G2425.10 (501.10) Connections to Exhauster

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G2425.11 (501.11) Masonry Chimneys

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G2425.12 (501.12) Residential and Low-Heat Appliances Flue Lining Systems

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G2425.13 (501.13) Category I Appliance Flue Lining Systems

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G2425.14 (501.14) Category II, III and IV Appliance Venting Systems

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G2425.15 (501.15) Existing Chimneys and Vents

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G2425.15.1 (501.15.1) Size

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G2425.15.2 (501.15.2) Flue Passageways

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G2425.15.3 (501.15.3) Cleanout

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G2425.15.4 (501.15.4) Clearances

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G2425.15.4.1 (501.15.4.1) Fireblocking

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Section G2426 (502) Vents

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G2426.1 (502.1) General

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G2426.2 (502.2) Connectors Required

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G2426.3 (502.3) Vent Application

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G2426.4 (502.4) Insulation Shield

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G2426.5 (502.5) Installation

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G2426.6 (502.6) Support of Vents

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G2426.7 (502.7) Protection Against Physical Damage

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G2426.7.1 (502.7.1) Door Swing

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Section G2427 (503) Venting of Appliances

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G2427.1 (503.1) General

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G2427.2 (503.2) Venting Systems Required

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G2427.2.1 (503.2.3) Direct-Vent Appliances

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G2427.2.2 (503.2.4) Appliances With Integral Vents

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G2427.3 (503.3) Design and Construction

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G2427.3.1 (503.3.1) Appliance Draft Requirements

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G2427.3.2 (503.3.2) Design and Construction

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G2427.3.3 (503.3.3) Mechanical Draft Systems

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G2427.3.4 (503.3.5) Air Ducts and Furnace Plenums

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G2427.3.5 (503.3.6) Above-Ceiling Air-Handling Spaces

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G2427.4 (503.4) Type of Venting System to Be Used

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G2427.4.1 (503.4.1) Plastic Piping

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G2427.4.1.1 (503.4.1.1) (IFGS) Plastic Vent Joints

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G2427.4.2 (503.4.2) Special Gas Vent

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G2427.5 (503.5) Masonry, Metal and Factory-Built Chimneys

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G2427.5.1 (503.5.1) Factory-Built Chimneys

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G2427.5.2 (503.5.3) Masonry Chimneys

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G2427.5.3 (503.5.4) Chimney Termination

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G2427.5.4 (503.5.5) Size of Chimneys

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G2427.5.5 (503.5.6) Inspection of Chimneys

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G2427.5.5.1 (503.5.6.1) Chimney Lining

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G2427.5.5.2 (503.5.6.2) Cleanouts

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G2427.5.5.3 (503.5.6.3) Unsafe Chimneys

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G2427.5.6 (503.5.7) Chimneys Serving Appliances Burning Other Fuels

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G2427.5.6.1 (503.5.7.1) Solid Fuel-Burning Appliances

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G2427.5.6.2 (503.5.7.2) Liquid Fuel-Burning Appliances

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G2427.5.6.3 (503.5.7.3) Combination Gas- And Solid Fuel-Burning Appliances

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G2427.5.6.4 (503.5.7.4) Combination Gas- And Oil Fuel-Burning Appliances

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G2427.5.7 (503.5.8) Support of Chimneys

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G2427.5.8 (503.5.9) Cleanouts

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G2427.5.9 (503.5.10) Space Surrounding Lining or Vent

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G2427.6 (503.6) Gas Vents

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G2427.6.1 (503.6.1) Installation, General

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G2427.6.2 (503.6.2) Type B-W Vent Capacity

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G2427.6.3 (503.6.4) Gas Vent Terminations

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G2427.6.3.1 (503.6.4.1) Decorative Shrouds

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G2427.6.4 (503.6.5) Minimum Height

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G2427.6.5 (503.6.6) Roof Terminations

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G2427.6.6 (503.6.7) Forced Air Inlets

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G2427.6.7 (503.6.8) Exterior Wall Penetrations

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G2427.6.8 (503.6.9) Size of Gas Vents

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G2427.6.8.1 (503.6.9.1) Category I Appliances

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G2427.6.8.2 (503.6.9.2) Vent Offsets

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G2427.6.8.3 (503.6.9.3) Category II, III and IV Appliances

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G2427.6.8.4 (503.6.9.4) Mechanical Draft

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G2427.6.9 (503.6.11) Support of Gas Vents

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G2427.6.10 (503.6.12) Marking

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G2427.6.11 (503.6.13) Fastener Penetrations

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G2427.7 (503.7) Single-Wall Metal Pipe

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G2427.7.1 (503.7.1) Construction

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G2427.7.2 (503.7.2) Cold Climate

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G2427.7.3 (503.7.3) Termination

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G2427.7.4 (503.7.4) Limitations of Use

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G2427.7.5 (503.7.5) Roof Penetrations

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G2427.7.6 (503.7.6) Installation

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G2427.7.7 (503.7.7) Single-Wall Penetrations of Combustible Walls

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G2427.7.8 (503.7.8) Clearances

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G2427.7.9 (503.7.9) Size of Single-Wall Metal Pipe

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G2427.7.10 (503.7.10) Pipe Geometry

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G2427.7.11 (503.7.11) Termination Capacity

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G2427.7.12 (503.7.12) Support of Single-Wall Metal Pipe

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G2427.7.13 (503.7.13) Marking

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G2427.8 (503.8) Venting System Termination Location

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G2427.9 (503.9) Condensation Drainage

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G2427.10 (503.10) Vent Connectors for Category I Appliances

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G2427.10.1 (503.10.1) Where Required

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G2427.10.2 (503.10.2) Materials

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G2427.10.2.1 (503.10.2.1) General

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G2427.10.2.2 (503.10.2.2) Vent Connectors Located in Unconditioned Areas

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G2427.10.2.3 (503.10.2.3) Residential-Type Appliance Connectors

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G2427.10.2.4 (503.10.2.4) Low-Heat Appliance

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G2427.10.3 (503.10.3) Size of Vent Connector

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G2427.10.3.1 (503.10.3.1) Single Draft Hood and Fan-Assisted

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G2427.10.3.2 (503.10.3.2) Multiple Draft Hood

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G2427.10.3.3 (503.10.3.3) Multiple Appliances

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G2427.10.3.4 (503.10.3.4) Common Connector/Manifold

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G2427.10.3.5 (503.10.3.5) Size Increase

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G2427.10.4 (503.10.4) Two or More Appliances Connected to a Single Vent or Chimney

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G2427.10.4.1 (503.10.4.1) Two or More Openings

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G2427.10.5 (503.10.5) Clearance

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G2427.10.6 (503.10.6) Joints

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G2427.10.7 (503.10.7) Slope

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G2427.10.8 (503.10.8) Length of Vent Connector

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G2427.10.9 (503.10.9) Support

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G2427.10.10 (503.10.10) Chimney Connection

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G2427.10.11 (503.10.11) Inspection

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G2427.10.12 (503.10.12) Fireplaces

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G2427.10.13 (503.10.13) Passage Through Ceilings, Floors or Walls

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G2427.11 (503.11) Vent Connectors for Category II, III and IV Appliances

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G2427.12 (503.12) Draft Hoods and Draft Controls

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G2427.12.1 (503.12.1) Appliances Requiring Draft Hoods

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G2427.12.2 (503.12.2) Installation

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G2427.12.2.1 (503.12.2.1) Draft Hood Required

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G2427.12.2.2 (503.12.2.2) Special Design Draft Hood

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G2427.12.3 (503.12.3) Draft Control Devices

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G2427.12.4 (503.12.4) Additional Devices

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G2427.12.5 (503.12.5) Location

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G2427.12.6 (503.12.6) Positioning

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G2427.12.7 (503.12.7) Clearance

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G2427.13 (503.13) Manually Operated Dampers

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G2427.14 (503.14) Automatically Operated Vent Dampers

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G2427.15 (503.15) Obstructions

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G2427.16 (503.16) (IFGS) Outside Wall Penetrations

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Section G2428 (504) Sizing of Category I Appliance Venting Systems

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G2428.1 (504.1) Definitions

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G2428.2 (504.2) Application of Single Appliance Vent Tables G2428.2(1) and G2428.2(2)

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G2428.2.1 (504.2.1) Vent Obstructions

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G2428.2.2 (504.2.2) Minimum Size

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G2428.2.3 (504.2.3) Vent Offsets

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G2428.2.4 (504.2.4) Zero Lateral

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G2428.2.5 (504.2.5) High-Altitude Installations

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G2428.2.6 (504.2.6) Multiple Input Rate Appliances

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G2428.2.7 (504.2.7) Liner System Sizing and Connections

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G2428.2.8 (504.2.8) Vent Area and Diameter

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G2428.2.9 (504.2.9) Chimney and Vent Locations

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G2428.2.10 (504.2.10) Corrugated Vent Connector Size

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G2428.2.11 (504.2.11) Vent Connector Size Limitation

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G2428.2.12 (504.2.12) Component Commingling

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G2428.2.13 (504.2.13) Draft Hood Conversion Accessories

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G2428.2.14 (504.2.14) Table Interpolation

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G2428.2.15 (504.2.15) Extrapolation Prohibited

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G2428.2.16 (504.2.16) Engineering Calculations

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G2428.2.17 (504.2.17) Height Entries

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G2428.3 (504.3) Application of Multiple Appliance Vent Tables G2428.3(1) Through G2428.3(4)

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G2428.3.1 (504.3.1) Vent Obstructions

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G2428.3.2 (504.3.2) Connector Length Limit

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G2428.3.3 (504.3.3) Connectors With Longer Lengths

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G2428.3.4 (504.3.4) Vent Connector Manifold

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G2428.3.5 (504.3.5) Common Vertical Vent Offset

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G2428.3.6 (504.3.6) Elbows in Vents

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G2428.3.7 (504.3.7) Elbows in Connectors

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G2428.3.8 (504.3.8) Common Vent Minimum Size

AMENDMENT
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G2428.3.9 (504.3.9) Common Vent Fittings

AMENDMENT
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G2428.3.9.1 (504.3.9.1) Tee and Wye Fittings

AMENDMENT
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G2428.3.10 (504.3.10) High-Altitude Installations

AMENDMENT
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G2428.3.11 (504.3.11) Connector Rise Measurement

AMENDMENT
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G2428.3.12 (504.3.12) Vent Height Measurement

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G2428.3.13 (504.3.17) Vertical Vent Maximum Size

AMENDMENT
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G2428.3.14 (504.3.18) Multiple Input Rate Appliances

AMENDMENT
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G2428.3.15 (504.3.19) Liner System Sizing and Connections

AMENDMENT
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G2428.3.16 (504.3.20) Chimney and Vent Location

AMENDMENT
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G2428.3.17 (504.3.21) Connector Maximum and Minimum Size

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G2428.3.18 (504.3.22) Component Commingling

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G2428.3.19 (504.3.23) Draft Hood Conversion Accessories

AMENDMENT
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G2428.3.20 (504.3.24) Multiple Sizes Permitted

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G2428.3.21 (504.3.25) Table Interpolation

AMENDMENT
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G2428.3.22 (504.3.26) Extrapolation Prohibited

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G2428.3.23 (504.3.27) Engineering Calculations

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G2428.3.24 (504.3.28) Height Entries

AMENDMENT
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Section G2429 (505) Direct-Vent, Integral Vent, Mechanical Vent and Ventilation/Exhaust Hood Venting

AMENDMENT
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G2429.1 (505.1) General

AMENDMENT
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Section G2430 (506) Factory-Built Chimneys

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G2430.1 (506.1) Listing

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G2430.2 (506.2) Support

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Section G2431 (601) General

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G2431.1 (601.1) Scope

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Section G2432 (602) Decorative Appliances for Installation in Fireplaces

AMENDMENT
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G2432.1 (602.1) General

AMENDMENT
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G2432.2 (602.2) Flame Safeguard Device

AMENDMENT
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G2432.3 (602.3) Prohibited Installations

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Section G2433 (603) Log Lighters

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G2433.1 (603.1) General

AMENDMENT
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Section G2434 (604) Vented Gas Fireplaces (Decorative Appliances)

AMENDMENT
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G2434.1 (604.1) General

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G2434.2 (604.2) Access

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Section G2435 (605) Vented Gas Fireplace Heaters

AMENDMENT
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G2435.1 (605.1) General

AMENDMENT
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Section G2436 (608) Vented Wall Furnaces

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G2436.1 (608.1) General

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G2436.2 (608.2) Venting

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G2436.3 (608.3) Location

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G2436.4 (608.4) Door Swing

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G2436.5 (608.5) Ducts Prohibited

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G2436.6 (608.6) Access

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Section G2437 (609) Floor Furnaces

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G2437.1 (609.1) General

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G2437.2 (609.2) Placement

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G2437.3 (609.3) Bracing

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G2437.4 (609.4) Clearance

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G2437.5 (609.5) First Floor Installation

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G2437.6 (609.6) Upper Floor Installations

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Section G2438 (613) Clothes Dryers

AMENDMENT
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G2438.1 (613.1) General

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Section G2439 (614) Clothes Dryer Exhaust

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G2439.1 (614.1) Installation

AMENDMENT
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G2439.2 (614.2) Duct Penetrations

AMENDMENT
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G2439.3 (614.4) Exhaust Installation

AMENDMENT
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G2439.4 (614.5) Dryer Exhaust Duct Power Ventilators

AMENDMENT
This section has been amended at the state or city level.

G2439.5 (614.6) Makeup Air

AMENDMENT
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G2439.6 (614.7) Protection Required

AMENDMENT
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G2439.7 (614.8) Domestic Clothes Dryer Exhaust Ducts

AMENDMENT
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G2439.7.1 (614.8.1) Material and Size

AMENDMENT
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G2439.7.2 (614.8.2) Duct Installation

AMENDMENT
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G2439.7.3 (614.8.3) Transition Ducts

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G2439.7.4 (614.8.4) Duct Length

AMENDMENT
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G2439.7.4.1 (614.8.4.1) Specified Length

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G2439.7.4.2 (614.8.4.2) Manufacturer's Instructions

AMENDMENT
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G2439.7.4.3 (614.8.4.3) Dryer Exhaust Duct Power Ventilator Length

AMENDMENT
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G2439.7.5 (614.8.5) Length Identification

AMENDMENT
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G2439.7.6 (614.8.6) Exhaust Duct Required

AMENDMENT
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Section G2440 (615) Sauna Heaters

AMENDMENT
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G2440.1 (615.1) General

AMENDMENT
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G2440.2 (615.2) Location and Protection

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G2440.2.1 (615.2.1) Guards

AMENDMENT
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G2440.3 (615.3) Access

AMENDMENT
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G2440.4 (615.4) Combustion and Dilution Air Intakes

AMENDMENT
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G2440.5 (615.5) Combustion and Ventilation Air

AMENDMENT
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G2440.6 (615.6) Heat and Time Controls

AMENDMENT
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G2440.6.1 (615.6.1) Timers

AMENDMENT
This section has been amended at the state or city level.

G2440.7 (615.7) Sauna Room

AMENDMENT
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Section G2441 (617) Pool and Spa Heaters

AMENDMENT
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G2441.1 (617.1) General

AMENDMENT
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Section G2442 (618) Forced-Air Warm-Air Furnaces

AMENDMENT
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G2442.1 (618.1) General

AMENDMENT
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G2442.2 (618.2) Forced-Air Furnaces

AMENDMENT
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G2442.3 (618.3) Dampers

AMENDMENT
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G2442.4 (618.4) Prohibited Sources

AMENDMENT
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G2442.5 (618.5) Screen

AMENDMENT
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G2442.6 (618.6) Return-Air Limitation

AMENDMENT
This section has been amended at the state or city level.

G2442.7 (618.7) Furnace Plenums and Air Ducts

AMENDMENT
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Section G2443 (619) Conversion Burners

AMENDMENT
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G2443.1 (619.1) Conversion Burners

AMENDMENT
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Section G2444 (620) Unit Heaters

AMENDMENT
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G2444.1 (620.1) General

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G2444.2 (620.2) Support

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G2444.3 (620.3) Ductwork

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G2444.4 (620.4) Clearance

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Section G2445 (621) Unvented Room Heaters

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G2445.1 (621.1) General

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G2445.2 (621.2) Prohibited Use

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G2445.3 (621.3) Input Rating

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G2445.4 (621.4) Prohibited Locations

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G2445.5 (621.5) Room or Space Volume

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G2445.6 (621.6) Oxygen-Depletion Safety System

AMENDMENT
This section has been amended at the state or city level.

G2445.7 (621.7) Unvented Decorative Room Heaters

AMENDMENT
This section has been amended at the state or city level.

G2445.7.1 (621.7.1) Ventless Firebox Enclosures

AMENDMENT
This section has been amended at the state or city level.

Section G2446 (622) Vented Room Heaters

AMENDMENT
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G2446.1 (622.1) General

AMENDMENT
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Section G2447 (623) Cooking Appliances

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G2447.1 (623.1) Cooking Appliances

AMENDMENT
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G2447.2 (623.2) Prohibited Location

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G2447.3 (623.3) Domestic Appliances

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G2447.4 (623.4) Range Installation

AMENDMENT
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G2447.5 (623.7) Vertical Clearance Above Cooking Top

AMENDMENT
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Section G2448 (624) Water Heaters

AMENDMENT
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G2448.1 (624.1) General

AMENDMENT
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G2448.1.1 (624.1.1) Installation Requirements

AMENDMENT
This section has been amended at the state or city level.

G2448.2 (624.2) Water Heaters Utilized for Space Heating

AMENDMENT
This section has been amended at the state or city level.

Section G2449 (627) Air-Conditioning Appliances

AMENDMENT
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G2449.1 (627.1) General

AMENDMENT
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G2449.2 (627.2) Independent Piping

AMENDMENT
This section has been amended at the state or city level.

G2449.3 (627.3) Connection of Gas Engine-Powered Air Conditioners

AMENDMENT
This section has been amended at the state or city level.

G2449.4 (627.6) Installation

AMENDMENT
This section has been amended at the state or city level.

Section G2450 (628) Illuminating Appliances

AMENDMENT
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G2450.1 (628.1) General

AMENDMENT
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G2450.2 (628.2) Mounting on Buildings

AMENDMENT
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G2450.3 (628.3) Mounting on Posts

AMENDMENT
This section has been amended at the state or city level.

G2450.4 (628.4) Appliance Pressure Regulators

AMENDMENT
This section has been amended at the state or city level.

Section G2451 (630) Infrared Radiant Heaters

AMENDMENT
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G2451.1 (630.1) General

AMENDMENT
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G2451.2 (630.2) Support

AMENDMENT
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Section G2452 (631) Boilers

AMENDMENT
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G2452.1 (631.1) Standards

AMENDMENT
This section has been amended at the state or city level.

G2452.2 (631.2) Installation

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G2452.3 (631.3) Clearance to Combustible Material

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Section G2453 (634) Chimney Damper Opening Area

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This section has been amended at the state or city level.

G2453.1 (634.1) Free Opening Area of Chimney Dampers

AMENDMENT
This section has been amended at the state or city level.

Section G2454 (636) Outdoor Decorative Appliances

AMENDMENT
This section has been amended at the state or city level.

G2454.1 (636.1) General

AMENDMENT
This section has been amended at the state or city level.
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