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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.

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

  1. 1001TW18HP32A2DOwith ductless indoor unit TW18HCL32A5DIGree (sold as Tosot)1.5 tons · 18,000 Btu/h · DuctlessBelow the middle1.90
  2. 1002TW18HP32A2DOCwith ductless indoor unit TW18HP32A2DICGree (sold as Tosot)1.5 tons · 18,000 Btu/h · DuctlessBelow the middle1.90
  3. 1003TWH18PD32AOwith ductless indoor unit TWH18PD32AIGree (sold as Tosot)1.5 tons · 18,000 Btu/h · DuctlessBelow the middle1.90
  4. 1004VIR18HP230V1R32AOwith ductless indoor unit VIR18HP230V1R32AHGree1.5 tons · 18,000 Btu/h · DuctlessBelow the middle1.90
  5. 1005RAM-G18N2HAAHITACHI1.5 tons · 18,000 Btu/h · DuctlessBelow the middle1.90
  6. 1006RAM-G18N2HBAHITACHI1.5 tons · 18,000 Btu/h · DuctlessBelow the middle1.90
  7. 1007ZOC-18HIN4-M-SE18with ducted air handler ZVMQFA-18HIN4L-M-SE15iCongo1.5 tons · 18,000 Btu/h · DuctedBelow the middle1.90
  8. 1008ZOT4P-18HIN4-M-SE15with ducted air handler ZVMQFA-18HIN4L-M-SE15iCongo1.5 tons · 18,000 Btu/h · DuctedBelow the middle1.90
  9. 1009POM18H2BM2AInnovair1.5 tons · 17,000 Btu/h · DuctedBelow the middle1.90
  10. 1010HP-18ODU-001with ducted air handler HP-18IDU-001Jetson1.5 tons · 18,000 Btu/h · DuctedBelow the middle1.90
  11. 1011KOVH-18BAM152Lwith ducted air handler KMAH36PBBE+TXVKaden1.5 tons · 18,000 Btu/h · DuctedBelow the middle1.90
  12. 1012SHP1418S1Awith ducted air handler SAHC36S1A+TXVLennox (sold as Comfort-Aire)1.5 tons · 18,000 Btu/h · DuctedBelow the middle1.90
  13. 1013RUZ-AH12NLZ***with ducted air handler RVZ-AP12NLMitsubishi Electric1 ton · 11,000 Btu/h · DuctedBelow the middle1.90
  14. 1014OCVX-H18A-Owith ductless indoor unit OCVX-H18A-IOUELLET1.5 tons · 18,000 Btu/h · DuctlessBelow the middle1.90
  15. 1015H18FMH22XPCTCL1.5 tons · 17,000 Btu/h · DuctedBelow the middle1.90
  16. 1016H18TDHXPCwith ducted air handler H18FAHUDETCL1.5 tons · 18,000 Btu/h · DuctedBelow the middle1.90
  17. 1017J5HP5018A1000Awith ducted air handler J5AH5E36A1B00ATrane (sold as Oxbox)1.5 tons · 18,000 Btu/h · DuctedBelow the middle1.90
  18. 1018WLP15AY18AJ2Nwith ducted air handler WLH2TY2417STANNWHIRLPOOL1.5 tons · 17,100 Btu/h · DuctedBelow the middle1.90
  19. 1019PUHW18KR32-Owith ductless indoor unit PUHW18KR32-IWILLIS1.5 tons · 18,000 Btu/h · DuctlessBelow the middle1.90
  20. 1020YRAMG18N2HAAYork1.5 tons · 18,000 Btu/h · DuctlessBelow the middle1.90
  21. 1021YRAMG18N2HBAYork1.5 tons · 18,000 Btu/h · DuctlessBelow the middle1.90
  22. 1022AO25-09N2-M1Hwith ducted air handler AL-09N2-M1AI AIR CONDITIONING1 ton · 9,000 Btu/h · DuctedBelow the middle1.89
  23. 1023BMS927HHYCwith ducted air handler BMC9LCDBlueRidge1 ton · 9,000 Btu/h · DuctedBelow the middle1.89
  24. 1024BXS5A09UC0with ducted air handler BXAFA09CDLBlueRidge1 ton · 9,000 Btu/h · DuctedBelow the middle1.89
  25. 1025BMS500-AAS009-1CSXHDwith ducted air handler BMS500-AAU009-1AHDXDBosch1 ton · 9,000 Btu/h · DuctedBelow the middle1.89

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