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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, Up to 1.5 tons: every model, highest efficiency on a 5°f day first

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

Showing Ductless, Up to 1.5 tons (under 21,000 Btu/h cooling). What size is my system?

  1. 1KUSXB181Awith ducted air handler D(A,C,E)30C3D+TDRLG1.5 tons · 16,800 Btu/h · DuctedTop 10%3.17
  2. 2KUSXA181Awith ducted air handler D(A,C,E)25C3D+TDRLG1.5 tons · 16,900 Btu/h · DuctedTop 10%3.01
  3. 3SUZ-AA09NL***with ducted air handler PEAD-AA09NLMitsubishi Electric1 ton · 9,000 Btu/h · DuctedTop 10%3.00
  4. 4KUSXB241Awith ducted air handler D(A,C,E)30C3D+TDRLG1.5 tons · 20,400 Btu/h · DuctedTop 10%2.95
  5. 5SUZ-AA18NL***with ducted air handler SEZ-AD18NLMitsubishi Electric1.5 tons · 18,000 Btu/h · DuctedTop 10%2.93
  6. 6KUSXA241Awith ducted air handler D(A,C,E)25C3D+TDRLG1.5 tons · 20,200 Btu/h · DuctedTop 10%2.88
  7. 7SUZ-AA15NL***with ductless indoor unit MSZ-EX15NLBMitsubishi Electric1.5 tons · 15,000 Btu/h · DuctlessTop 10%2.84
  8. 8SUZ-CA15NLH***with ductless indoor unit MFZ-KX15NLMitsubishi Electric1.5 tons · 15,000 Btu/h · DuctlessTop 10%2.79
  9. 9BOHA-24MTB-M18Swith ducted air handler AE*S+CM24C3K+TDRBosch1.5 tons · 20,600 Btu/h · DuctedTop 10%2.73
  10. 10BOHA-24RTB-M18Swith ducted air handler AE*S+CM24C3K+TDRBosch1.5 tons · 20,600 Btu/h · DuctedTop 10%2.67
  11. 11SUZ-CA09NLH***with ductless indoor unit MFZ-KX09NLMitsubishi Electric1 ton · 9,000 Btu/h · DuctlessTop 10%2.67
  12. 12AOUH12KTAP1with ductless indoor unit ASUH12KTABFujitsu1 ton · 12,000 Btu/h · DuctlessTop 10%2.62
  13. 13SUZ-CA18NLH***with ducted air handler SEZ-AD18NLMitsubishi Electric1.5 tons · 18,000 Btu/h · DuctedTop 10%2.61
  14. 14PAS-18BUFASDQ1-LACwith ductless indoor unit PCI-B18UFA1DQHITACHI1.5 tons · 18,000 Btu/h · DuctlessTop 10%2.60
  15. 15YPAS18BUFASDQ1with ductless indoor unit YPCIB18UFA1DQYork1.5 tons · 18,000 Btu/h · DuctlessTop 10%2.60
  16. 16PAS-18BUFASDQ1with ductless indoor unit PCI-B18UFA1DQHITACHI1.5 tons · 18,000 Btu/h · DuctlessTop 10%2.59
  17. 17AOUH15KTAP1with ductless indoor unit ASUH15KTABFujitsu1 ton · 14,500 Btu/h · DuctlessTop 10%2.54
  18. 18AO-18U3R25Ewith ductless indoor unit AS-18U3RHB25EHisense1.5 tons · 18,000 Btu/h · DuctlessTop 10%2.53
  19. 19AST-18UW3RXW00with ductless indoor unit AST-18UW3RXW**00Hisense1.5 tons · 18,000 Btu/h · DuctlessTop 10%2.53
  20. 20QOS18H2XE5Awith ductless indoor unit QHW18H2UZRBInnovair1.5 tons · 18,000 Btu/h · DuctlessTop 10%2.53
  21. 21WHS18SZB21Swith ductless indoor unit WHS18WMB21SNortek Global HVAC (sold as Westinghouse)1.5 tons · 18,000 Btu/h · DuctlessTop 10%2.53
  22. 22OS-SR18-230VOwith ductless indoor unit OS-A18SRW-230VIOLMO1.5 tons · 18,000 Btu/h · DuctlessTop 10%2.53
  23. 23CU-VST18HC-WIFIDR25with ductless indoor unit EU- VST18HC-WIFIDR25Voltas1.5 tons · 18,000 Btu/h · DuctlessTop 10%2.53
  24. 24ZE-18CB22Owith ductless indoor unit ZE-18CB22AIZEPHYR1.5 tons · 18,000 Btu/h · DuctlessTop 10%2.53
  25. 25AFEB09HP115V1COwith ductless indoor unit AFEB09HP115V1CHAUX1 ton · 9,100 Btu/h · DuctlessTop 10%2.52

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