Check a heat pump’s certified ratings
Type the outdoor unit’s model number from its nameplate, or the AHRI reference number from your quote, to get its certified ratings, how it compares with others of its size, and the rebate standards it meets.
Covers heat pumps sold new today (R-454B and R-32 refrigerant). See older R-410A models · Updated
Partial model numbers work. AHRI numbers find the pairing listed for each model.
What size is my system?
Tons and Btu
A heat pump’s size is its rated cooling output, in Btu per hour. Installers talk in tons: one ton is 12,000 Btu per hour, so a 3-ton unit is about 36,000.
Where to find yours: the nameplate sticker on the outdoor unit lists the model number. Many model numbers include the size in thousands of Btu, such as 24 (2 tons), 36 (3 tons) or 48 (4 tons). Your quote or AHRI certificate also lists it. Look up a model number
These are certified test ratings, not a recommendation for your home. The right size comes from a load calculation by a contractor.
Size classes used here
- Up to 1.5 tonsunder 21,000 Btu/h
- 2 tons21,000 to 26,999 Btu/h
- 2.5 to 3 tons27,000 to 38,999 Btu/h
- 3.5 to 4.5 tons39,000 to 56,999 Btu/h
- 5 tons and up57,000 Btu/h and up
Advanced view: every model, filtered by brand, standard, size and type, sorted by any rating.
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