ETL Listed Mark thumbnail 
ETL - Mark of Safety 

HVAC/R products found in compliance are eligible to bear the ETL Listed Mark.  This mark tells buyers that the product has undergone testing by an independent testing laboratory and has met applicable safety requirements. Intertek's ETL Listed Mark is backed by responsive customer service, and is recognized throughout North America by Authorities Having Jurisdiction (AHJs).

Our Accreditations

  • OSHA (Occupational Safety & Health Administration) recognized NRTL (Nationally Recognized Testing Laboratory)
  • Testing Organization and Certification Body by the Standards Council of Canada

White Paper: Risk-Based Approach to Product Compliance 

Risk Based Approach to Product Compliance 
This white paper will explain the differences between a standards-based product design and a more thorough risk-based design. Download.

View all White Papers 

 

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Safety Testing Standards for HVAC/R Equipment

Intertek is equipped to test your products to all North American (US and Canada) Safety Standards for HVAC/R equipment, including ANSI, IL, CSA, ASTM and other applicable standards

We test to the following standards:

UL 17 - Vent or chimney connector dampers for oil-fired appliances
UL 103 - Factory built chimneys
UL 127 - Factory built fireplaces
UL 136 - Household electric storage tank water heaters
UL 174 - Household electric storage tank water heaters
UL 296 - Oil burners
UL 307A - Liquid fuel-burning heating appliances for manufactured homes and recreational vehicles
UL 307B - Gas-burning heating appliances for manufactured homes and recreational vehicles 
UL 331 - Strainers for flammable fluids and anhydrous ammonia
UL 343 - Pumps for oil-burning appliances
UL 352 - Constant-level oil valves
UL 353 - Limit controls
UL 378 - Draft equipment
UL 391 - Solid-fuel and combination-fuel central and supplementary furnaces
UL 441 - Gas vents
UL 474 - Dehumidifiers
UL 484 - Room air conditioner
UL 499 - Electric heating appliances
UL 507 - Fans
UL 515 - Electrical resistance heat tracing for commercial and industrial applications
UL 555 - Fire dampers
UL 574 - Electric oil heaters
UL 586 - High-efficiency, particulate, air filter units
UL 641 - Type L low-temperature venting systems
UL 647 - Unvented kerosene-fired room heaters and portable heaters
UL 705 - Power ventilators
UL 710 - Exhaust hoods for commercial cooking equipment
UL 723 - Surface burning characteristics of building materials
UL 726 - Oil-fired boiler assemblies
UL 727 - Oil-fired central furnaces
UL 729 - Oil-fired floor furnaces
UL 730 - Oil-fired wall furnaces
UL 731 - Oil-fired unit heaters
UL 732 - Oil-fired storage tank water heaters
UL 733 - Oil-fired air heaters and direct-fired heaters
UL 737 - Fireplace stoves
UL 791 - Residential incinerators
UL 795 - Commercial/industrial gas heating equipment
UL 834 - Heating, water supply, and power boilers -- electric
UL 842 - Valves for flammable fluids
UL 875 - Electric dry-bath heaters
UL 896 - Oil burning stoves
UL 900 - Air filter units
UL 907 - Fireplace accessories
UL 959 - Medium heat appliance factory-built chimneys
UL 1042 - Electric baseboard heating equipment
UL 1046 - Grease filters for exhaust ducts
UL 1075 - Gas-fired cooking appliances for recreational vehicles
UL 1129 - Wet exhaust components for marine engines
UL 1278 - Movable and wall or ceiling-hung electric room heaters
UL 1453 - Electric booster and commercial storage tank water heaters
UL 1482 - Solid fuel room heaters
UL 1738 - Vent or chimney connector dampers for oil-fired appliances
UL 1777 - Chimney liners
UL 1812 - Ducted heat recovery ventilators
UL 1815 - Non-ducted heat recovery ventilators
UL 1995 - Heating and cooling equipment
UL 1996 - Duct heaters
UL 2021 - Fixed and location-dedicated electric room heaters
UL 2096 - Commercial/industrial gas and/or oil-burning assemblies with emission reduction Equipment
UL 2106 - Field erected boiler assemblies
UL 2395 - 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
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 

Refrigeration Testing
UL 207 - Refrigerant containing components/accessories non-electric
UL 250 - Household refrigerators and freezers
UL 399 - Drinking water coolers
UL 412 - Refrigeration unit coolers
UL 416 - Refrigerated medical equipment
UL 427 - Refrigerating units
UL 471 - Commercial refrigerators, freezers, and beverage coolers
UL 541 - Refrigerated vending machines
UL 563 - Ice makers
UL 621 - Ice cream makers
UL 751 - Non-refrigerated vending machines
UL 1963 - Refrigerant recovery/recycling equipment
UL 60335-2-34 - Hermetic refrigerant motor compressors
IEC/EN 60335-2-24 - Refrigerating appliances, ice cream/ice makers
IEC/EN 60335-2-89 - Commercial refrigerating appliances with an incorporated or remote refrigerant condensing unit or compressor

to see how Intertek can help your organization with Safety Testing Standards for HVAC/R Equipment.