Fuel gas code
UL certifies cooking equipment, clothes dryers, heating and cooling systems, furnaces, fireplaces, room heaters, chimneys and vents for installation in accordance with fuel gas code requirements.
Cooking equipment
Manufacturers of certified products and related information.
Household ranges, ovens, cooktops, broilers (Z.21.1, UL 858) Information Manufacturers
Outdoor barbecues and grills (ANSI Z.21.58/CSA 1.6) Information Manufacturers
Outdoor smokers (ANSI Z.21.89/CSA 1.18) Information Manufacturers
Commercial cooking appliances (ANSI Z.83.11/CSA 1.8) Information Manufacturers
Commercial cooking equipment application guide Learn more
Clothes dryers
Manufacturers of certified products and related information.
Clothes dryers, Type 1 (ANSI Z21.5.1/CSA 7.1) Information Manufacturers
Clothes dryers, Type 2 (ANSI Z21.5.2/CSA 7.2) Information Manufacturers Clothes dryer transition ducts Information Manufacturers
Dryer exhaust duct power ventilators Information Manufacturers
Furnaces, fireplaces and room heaters
Manufacturers of certified products and related information.
Central furnaces, forced air units (ANSI Z.21.47/CSA 2.3,) Information Manufacturers
Decorative appliances for installation in vented fireplaces (ANSI Z21.60/CGA 2.26) Information Manufacturers
Decorative appliances for installation in vented fireplaces, manually lighted (ANSI Z21.84) Information Manufacturers
Radiant heaters, commercial (ANSI Z.83.19/CSA 2.35, ANSI Z.83.20/CSA 2.34) Information Manufacturers
Unvented room heaters (ANSI Z21.11.2) Information Manufacturers
Vented room heaters (ANSI Z.21.86/CSA 2.32) Information Manufacturers
Outdoor fireplaces Information Manufacturers
Vented fireplaces Information Manufacturers
Vented fireplace heaters Information Manufacturers
Floor protectors and wall shields Information Manufacturers
Technical article Fireplace floor protectors and wall shields
Chimneys and vents
Manufacturers of certified products and related information.
Residential type and building heating appliance chimneys Information Manufacturers
Medium-heat appliance chimneys Information Manufacturers
1400 F chimneys Information Manufacturers
Chimney liners Information Manufacturers
Chimney and vent connectors and accessories Information Manufacturers
Type B and BW gas vents Information Manufacturers
Gas vent caps and accessories Information Manufacturers
Type L vents Information Manufacturers
Categories II, III, and IV gas vents Information Manufacturers
Technical article Venting gas fired appliances
Water heaters
Manufacturers of certified products and related information.
Water heaters with input above 75,000 Btu per hour (ANSI Z.21.10.3) Information Manufacturers
Water heaters with input 75,000 Btu per hour or less (ANSI Z.21.10.1/CSA 4.1) Information Manufacturers
Water heaters, commercial and industrial (UL 795) Information Manufacturers
Swimming pool and spa heaters (ANSI Z21.56/CSA 4.7 UL 1563) Information Manufacturers
