Heating and cooling help in Salt Lake County

Heating & cooling in Salt Lake County: what the local homes tell you

The median home in Salt Lake County was built in 1986, close to the statewide median of 1992. 43% of homes were built before 1980, and 18% before 1960. 66% are owner-occupied, and 60% are single-family detached houses.

The 2021 IECC puts Salt Lake County in climate zone 5B, the cold-dry zone most of Utah shares. RESNET's county table lists a 1% cooling design temperature of 96°F and a 99% heating design temperature of 11°F for Salt Lake County. Those are the figures a load calculation sizes equipment against — not the record high or low, but the temperature the system has to keep up with on a normal hard day.

82% of occupied homes in Salt Lake County heat with utility gas and 16% with electricity (statewide it is 79% and 17%).

In older homes the ductwork was often sized for the equipment that came with the house. When a system is replaced, ask for a load calculation rather than a like-for-like swap: the house may have new windows, insulation or additions the old sizing never saw.

Housing figures: U.S. Census Bureau, American Community Survey 2024 5-year estimates. Climate: 2021 IECC county zones (PNNL) and RESNET's design-temperature table.

Heating & cooling requests we book in Salt Lake County

• AC not cooling
• Furnace not heating
• Heat pumps
• Ductless mini-splits
• System replacement
• Seasonal maintenance

Before anyone starts work in Salt Lake County

In Utah, contracting work in this trade is licensed by the Division of Professional Licensing (DOPL). The classification to look for is H100 (HVAC Contractor). You can look up any contractor's license yourself on DOPL's license lookup — the contractor we book will not mind you checking.

Ask whether the job needs a permit and who is pulling it, and get the answer on the written estimate.