Residential Fuel Gas Piping Checklist

Use the Residential Fuel Gas Piping Checklist to check all elements for compliance with the 2018 International Residential Code (IRC).

Residential Fuel Gas Piping Checklist



Inspections And Tests

1. Does the test gauge have a high reading not more than 5 times the test pressure?


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2. Has LP gas been tested at least 1-1/2 times the operating pressure but not less than 3 psi for a minimum of 10 minutes?


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3. Has testing been performed with air, nitrogen, carbon dioxide, or an inert gas (and not oxygen) ?


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4. Were all outlets turned off or capped before initially turning on the gas ?


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5. Were leaks detected with an approved type of detector or soap suds?


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6. Are defective pipes replaced rather than repaired?


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7. Was testing conducted only for new pipes added to an existing system?


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8. Has equipment that is not included in the test been disconnected or isolated by blanks, blind flanges, or caps?


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Underground

1. Is a ferrous pipe protected from corrosion ?


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2. Is pipe protective wrapping factory applied (machine) or as an exception, are field coating of joints applied per manufacturer's instructions ?


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3. Has the above-grade metallic gas piping been bonded?


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4. Is gas piping not used as a grounding electrode? Does ferrous underground pipe connected to ferrous above ground require a dielectric fitting?


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5. Is the minimum burial depth 12 inches?


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6. Do individual gas lines to lights, BBQs, etc. have 8 inches of cover if not susceptible to damage and approved by the authority having jurisdiction (AHJ)?


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7. Is there an 18 AWG yellow insulated copper tracer wire with PE or PB piping ?


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8. Does PE or PB require a ferrous riser before going vertical? Exception: May terminate outside above ground in accordance with manufacturer’s instructions or above ground in a sleeved wall head adapter.?


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Gas Piping Under Building Or Slab

1. Is gas piping not buried under or in a slab within the building? Exception: It is allowed below grade under a building if sleeved in schedule 40 steel, iron, or plastic pipe conduit extending at least 4 inches to the outside of the building.?


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2. Is the interior end of the conduit enclosing the gas pipe sealed?


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3. Does the exterior end of the conduit extend a minimum of 4 inches outside the building, vented above grade, and installed to prevent water and insect entry?


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4. Is the conduit protected from corrosion if not made of plastic?


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5. Does gas piping not penetrate foundation walls at any point below grade ?


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Shutoff Valves

1. Are all shutoff valves accessible ?


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2. Are outdoor shutoff valves required for all buildings ?


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3. Do all meters have a shutoff on the supply side?


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4. Are accessible shutoff valves located within 6 feet of an appliance and in the same room ?


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5. Are shutoff valves installed inside the firebox of a fireplace per the manufacturer's instructions?


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Appliance Fuel Connectors

1. Are connectors not concealed within walls, floors, or appliances?


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2. Do connectors not exceed the maximum length per manufacturer's instructions (not to exceed 6 feet)?


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3. Are connectors sized for the total demand of the appliance?


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4. Do connectors for external use have the necessary listing, labeling, and installation per the manufacturer's instructions?


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5. Is pipe dope not allowed at flex connector flared connections? (Per ANSI/manufacturer’s regulations)


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Permits And Plans

1. Is the job address posted in a visible location ?


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2. Are the permit and approved plans on-site and accessible to the inspector ?


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3. Is the permit information correct, including the address, permit number, and description of work?


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4. Is the manufacturer's installation information available if needed?


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5. Have all new gas appliances been included on the permit ?


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General

1. Is the main shutoff accessible and located ahead of the meter?


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2. Is the gas piping properly supported according to Table?


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3. Is the gas piping sized as per the methods ?


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4. Is the pipe new or used exclusively for gas piping ?


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5. Are bends in plastic piping in compliance with the manufacturer's instructions?


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6. Is exposed ferrous metal piping protected from corrosion?


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7. Is the radius of bends in PE pipes, not less than 25 pipe diameters?


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8. Does gas piping not run through air ducts, chimneys, vents, plenums, clothes chutes, dumbwaiters, elevator shafts, or through adjoining townhouse party walls?


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9. For underfloor or outdoor piping, is it a minimum of 3.5 inches above the ground or roof?


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10. Has CSST piping been properly bonded and shielded per IFGC 310.2 and manufacturer's instructions which extend 4 inches beyond the CSST ?


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11. Are proper protections (nail plates) in place for non-ferrous piping if it's less than 1-1/2 inches from a studded face ?


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12. Is ferrous metal piping exposed in external locations protected from corrosion ?


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Materials And Installation

1. Is steel (galvanized) or black pipe okay but not less than Schedule 10?


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2. Are the ends of the pipe deburred?


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3. Is the cast-iron pipe not used for gas?


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4. Is corrugated stainless steel tubing (CSST) okay when installed per the manufacturer’s instructions?


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5. Except for black steel pipe, is exposed piping identified by a yellow label marked “GAS” in black letters?


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6. Does LP gas have piping/tubing dielectric fittings separating aboveground/underground connections?


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Joints In Pipe Or Tubing

1. Is ferrous pipe threaded or welded?


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2. Have connections for copper tubing been made by brazing (alloys with less than 0.05% phosphorous) or approved gas tubing fittings complying with ANSI LC-4 ?


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3. Are flared joints used only in nonferrous pipe and tubing?


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4. Is PE or PB plastic piping properly heat-fused or mechanically connected as per the manufacturer's instructions? Are heat-fused fittings marked “ASTM D2513”? ?


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5. Are unions or bushings at concealed locations not present?


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6. Are right/left couplings okay in only accessible locations?


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Checklist by GoAudits.com – Please note that this checklist is intended as an example. We do not guarantee compliance with the laws applicable to your territory or industry. You should seek professional advice to determine how this checklist should be adapted to your workplace or jurisdiction.

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