Products and standards
UL can test heating, ventilation and air conditioning equipment to all the major standards for safety including UL and IEC standards. UL can also test to specific AHRI and ASHRAE performance standards. To view the scope of the UL Standards, click on the Standard number.
UL safety testing
| Standard | Title |
Vent or chimney connector dampers for oil-fired appliances | |
Factory built chimneys | |
Factory built fireplaces | |
Household electric storage tank water heaters | |
Household electric storage tank water heaters | |
Oil burners | |
Liquid fuel-burning heating appliances for manufactured homes and recreational vehicles | |
Gas-burning heating appliances for manufactured homes and recreational vehicles | |
Strainers for flammable fluids and anhydrous ammonia | |
Pumps for oil-burning appliances | |
Constant-level oil valves | |
Limit controls | |
Draft equipment | |
Solid-fuel and combination-fuel central and supplementary furnaces | |
Gas vents | |
Dehumidifiers | |
Room air conditioner | |
Electric heating appliances | |
Electrical resistance heat tracing for commercial and industrial applications | |
Fire dampers | |
Electric oil heaters | |
High-efficiency, particulate, air filter units | |
Type L low-temperature venting systems | |
Unvented kerosene-fired room heaters and portable heaters | |
Power ventilators | |
Exhaust hoods for commercial cooking equipment | |
Surface burning characteristics of building materials | |
Oil-fired boiler assemblies | |
Oil-fired central furnaces | |
Oil-fired floor furnaces | |
Oil-fired wall furnaces | |
Oil-fired unit heaters | |
Oil-fired storage tank water heaters | |
Oil-fired air heaters and direct-fired heaters | |
Fireplace stoves | |
Residential incinerators | |
Commercial/industrial gas heating equipment | |
Heating, water supply, and power boilers -- electric | |
Valves for flammable fluids | |
Electric dry-bath heaters | |
Oil burning stoves | |
Air filter units | |
Fireplace accessories | |
Medium heat appliance factory-built chimneys | |
Electric baseboard heating equipment | |
Grease filters for exhaust ducts | |
Gas-fired cooking appliances for recreational vehicles | |
Wet exhaust components for marine engines | |
Movable and wall or ceiling-hung electric room heaters | |
Electric booster and commercial storage tank water heaters | |
Solid fuel room heaters | |
Vent or chimney connector dampers for oil-fired appliances | |
Chimney liners | |
Ducted heat recovery ventilators | |
Non-ducted heat recovery ventilators | |
Heating and cooling equipment | |
Duct heaters | |
Fixed and location-dedicated electric room heaters | |
Commercial/industrial gas and/or oil-burning assemblies with emission reduction Equipment | |
Field erected boiler assemblies | |
Adhesives for use in heating, ventilation and air conditioning appliances to secure thermal insulation materials | |
IEC 60335-2-40 | Heat pumps, air conditioners and dehumidifier |
IEC 60335-2-88 | Humidifiers for heating, ventilation or air con systems |
Gas-fired ANSI testing
| Standard | Title |
ANSI Z21.6 | Gas-fired infrared heaters |
ANSI Z21.7 | Gas-Fired construction heaters |
ANSI Z21.11.1 | Gas-fired room heaters, vented |
ANSI Z21.11.2 | Gas-fired room heaters, unvented |
ANSI Z21.18 | Direct gas-fired industrial air heaters |
ANSI Z21.47 | Gas-fired central furnaces |
ANSI Z21.50 | Vented gas fireplaces |
ANSI Z21.60 | Decorative gas appliances for installation in solid-fuel burning fireplaces |
ANSI Z21.66 | Automatic vent damper devices for use with gas-fired appliances |
ANSI Z21.86 | Vented gas-fired space heating appliances |
ANSI Z21.88 | Vented gas fireplace heaters |
