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Residential Mechanical Systems Inspection Checklist
Section 1: Residential Mechanical Systems Inspection Checklist
1. 1. Is the fireplace factory-built, certified, listed, and labeled? Is it tested and certified according to WA. St. Bldg. Code standard 31-? Is the testing performed by WA ST. DOE, and the US. EPA accredited laboratory?
Yes
No
N/A
2. 2. For Certified Masonry and Concrete fireplaces, and heaters - are they tested and certified to WA. St. Bldg. Code standard 31-2? Is testing performed by WA ST. DOE, and the US. EPA accredited laboratory (R1004.1.2, WA State Amendment)?
Yes
No
N/A
3. 3. For Solid Fuel burning appliances and fireplaces – Are tight fitting metal/ceramic doors used, and certified to test No. 11-Negative pressure test, Section 12.3, of ULCS627-M1984 for outside combustion air–duct 4 inches min., and 20 feet max. length (R1006.6, WA State Amendment)?
Yes
No
N/A
4. 4. Are hearth extensions readily distinguishable from the surrounding floor and in accordance with the fireplace listing ?
Yes
No
N/A
5. 5. Are gas logs in solid fuel-burning fireplaces installed per the manufacturer's instructions ?
Yes
No
N/A
6. 6. Are appliance shutoff valves located in the same room, and within 6 feet of the appliance? Are appliance shutoff valves located in the fireplace firebox installed as per the appliance manufacturer’s instructions? Are shutoff valves for vented decorative appliances and room heaters permitted to be installed in a remote area from the appliance where such valves are provided with ready access, permanent identification, and serve no other appliance? Are shutoff valves installed at a manifold–within 5 feet of the appliance, but other requirements apply, as above?
Yes
No
N/A
7. 7. Are decorative shrouds used at chimney terminations listed and labeled for use with specific chimney systems?
Yes
No
N/A
8. 8. Are gas logs in solid fuel-burning fireplaces installed as per the manufacturer’s instructions?
Yes
No
N/A
9. 9. If gas logs have a pilot, do they have a listed safety shutoff valve?
Yes
No
N/A
10. 10. Is a 4-inch metal dryer exhaust duct installed with a smooth interior as per the manufacturer’s instructions?
Yes
No
N/A
11. 11. Is an approved flexible listed metal duct connector, up to 8 feet long, used to connect the dryer to the vent, ensuring it does not extend into the wall, floor, or ceiling?
Yes
No
N/A
12. 12. Has a minimum of 100 square inches of makeup air been provided for closets designed for the installation of clothes dryers that exhaust more than 200 CFM?
Yes
No
N/A
13. 13. For determining dryer duct length, is the exhaust duct limited to 35 feet for natural gas dryers, with deductions of 2.5 feet for each 45-degree elbow and 5 feet for each 90-degree bend?
Yes
No
N/A
14. 14. Alternatively, has the maximum length been determined based on the manufacturer’s installation instructions, with the make and model of the dryer provided to the code official at the rough-in?
Yes
No
N/A
15. 15. Is flex duct supported according to the manufacturer’s installation instructions, with a maximum spacing of every 4 feet, and without any kinks or tight bends?
Yes
No
N/A