- UL1042 – baseboards (including portable baseboards)
- UL1278 – movable cord connected (other than baseboard type)
- UL2021 – Fixed and location dedicated room heaters
- UL1995 – Heating and cooling equipment
- ASHRAE STANDARD 90.1–2010 – Energy Standard for Buildings Except Low-Rise Residential Buildings
- ICC STANDARD – 2012 IECC – International Energy Conservation Code (covers commercial & residential construction)
- ICC STANDARD – 2012 IgCC – International Green Construction Code
* See member companies for more information.