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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. You will see its 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.

Ductless, 2.5–3 tons: every model, highest efficiency on a 5°f day first

One size class at a time, so the numbers compare directly.

Showing Ductless, 2.5–3 tons (27,000–38,999 Btu/h cooling). What size is my system?

  1. 726TMSC-36HA2/I2XI19B-O*ROVSUN3 tons · 35,000 Btu/h · DuctlessGood2.00
  2. 727HMZ27H525ZMOSEA BREEZE+2.5 tons · 27,000 Btu/h · DuctlessGood2.00
  3. 728HMZ36H525ZMOSEA BREEZE+3 tons · 36,000 Btu/h · DuctlessGood2.00
  4. 729MZ27H525ZMOSEA BREEZE+2.5 tons · 27,000 Btu/h · DuctlessGood2.00
  5. 730MZ36H525ZMOSEA BREEZE+3 tons · 36,000 Btu/h · DuctlessGood2.00
  6. 731SZ36H525ZMOwith ducted air handler AH36H525ZMISEA BREEZE+3 tons · 36,000 Btu/h · DuctedGood2.00
  7. 732SENA-28HF-MOASenville2.5 tons · 27,000 Btu/h · DuctlessGood2.00
  8. 733SENA-36HF-MOASenville3 tons · 36,000 Btu/h · DuctlessGood2.00
  9. 734SAC003-B-28KWH-USTPSimzlife2.5 tons · 28,000 Btu/h · DuctlessGood2.00
  10. 735SAC003-B-36KWH-USTPSimzlife3 tons · 38,000 Btu/h · DuctlessGood2.00
  11. 736SHC4Z27AH2AGSLIMAIR2.5 tons · 28,000 Btu/h · DuctedGood2.00
  12. 737SHC5Z36AC2AGSLIMAIR3 tons · 35,000 Btu/h · DuctlessGood2.00
  13. 738SHC5Z36AH2AGSLIMAIR3 tons · 36,000 Btu/h · DuctedGood2.00
  14. 739AC116727CZSLOMIN'S2.5 tons · 28,000 Btu/h · DuctlessGood2.00
  15. 740AC116735CZSLOMIN'S3 tons · 35,000 Btu/h · DuctlessGood2.00
  16. 741S27TZL2C*Star Air Kontrol2.5 tons · 27,000 Btu/h · DuctlessGood2.00
  17. 742S36QZL2C*Star Air Kontrol3 tons · 35,000 Btu/h · DuctlessGood2.00
  18. 743SAK-36-QZ/220VStar Air Kontrol3 tons · 35,000 Btu/h · DuctlessGood2.00
  19. 744AC-30Z-E-M4STEALTH2.5 tons · 30,000 Btu/h · DuctlessGood2.00
  20. 745AC-36Z-E-M4STEALTH3 tons · 36,000 Btu/h · DuctlessGood2.00
  21. 746AC-42Z-E-M5STEALTH3 tons · 37,000 Btu/h · DuctlessGood2.00
  22. 747SMZ3B1-H27A-OStelpro2.5 tons · 27,000 Btu/h · DuctlessGood2.00
  23. 748SMZ3B1V-H27A-OStelpro2.5 tons · 27,000 Btu/h · DuctlessGood2.00
  24. 749SMZ4B1-H36A-OStelpro3 tons · 36,000 Btu/h · DuctlessGood2.00
  25. 750SMZ4B1V-H36A-OStelpro3 tons · 36,000 Btu/h · DuctlessGood2.00

These are certified test ratings, not a recommendation for your home. The right size comes from a load calculation by a contractor.

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 tons21,000–26,999 Btu/h
  • 2.5–3 tons27,000–38,999 Btu/h
  • 3.5–4.5 tons39,000–56,999 Btu/h
  • 5 tons and up57,000 Btu/h and up

The advanced view lists every model with filters for brand, standard, size and type, sortable by any rating.

Open the advanced view