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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. 851MOS18H2BE5Awith ductless indoor unit MHW18H2BERAInnovair1.5 tons · 17,000 Btu/h · DuctlessGreat2.10
  2. 852KOB-HH-PSX18HP-2AAMAwith ducted air handler KIB-PSX18HS-2AAMAKaden1.5 tons · 17,500 Btu/h · DuctedGood2.10
  3. 853KWSM-12IR454BHS23LRwith ductless indoor unit KWSM-12IR454BHS23LRKANIONco1 ton · 12,000 Btu/h · DuctlessGreat2.10
  4. 854KWSM-12IR454BHS24Rwith ductless indoor unit KWSM-12IR454BHS24RKANIONco1 ton · 12,000 Btu/h · DuctlessGreat2.10
  5. 855A-KSP18SA-1with ductless indoor unit B-KSP18SA-1Kerr1.5 tons · 17,000 Btu/h · DuctlessGreat2.10
  6. 856KAC-18WH(E/6)DBP-M100with ductless indoor unit KAC-18GH(E/6)DBP-M100KHR1.5 tons · 18,000 Btu/h · DuctlessGreat2.10
  7. 857KOIQ12H1-45Twith ductless indoor unit KIWQ12H1-45TKLIMAIRE1 ton · 12,000 Btu/h · DuctlessGreat2.10
  8. 858KOIQ12H2-45Twith ductless indoor unit KIWQ12H2-45TKLIMAIRE1 ton · 12,000 Btu/h · DuctlessGreat2.10
  9. 859A-SSP18SA-1with ductless indoor unit B-SSP18SA-1Lennox (sold as Comfort-Aire)1.5 tons · 17,000 Btu/h · DuctlessGreat2.10
  10. 860LEO12K30S24V115H1with ductless indoor unit LEO12K30S24V115H1LEO AIR1 ton · 12,000 Btu/h · DuctlessGreat2.10
  11. 861LEO12K30S24V220H1with ductless indoor unit LEO12K30S24V220H1LEO AIR1 ton · 12,000 Btu/h · DuctlessGreat2.10
  12. 862KWSM-12IR454BHS23LRwith ductless indoor unit LWSM-12IR454BHS23LRLive cool1 ton · 12,000 Btu/h · DuctlessGreat2.10
  13. 863KWSM-12IR454BHS24Rwith ductless indoor unit LWSM-12IR454BHS24RLive cool1 ton · 12,000 Btu/h · DuctlessGreat2.10
  14. 864LWSM-12IR454BHS23LRwith ductless indoor unit LWSM-12IR454BHS23LRLive cool1 ton · 12,000 Btu/h · DuctlessGreat2.10
  15. 865LWSM-12IR454BHS24Rwith ductless indoor unit LWSM-12IR454BHS24RLive cool1 ton · 12,000 Btu/h · DuctlessGreat2.10
  16. 866D5CVRAH18AAKwith ductless indoor unit D5FVHAH18XAKLPS Legacy1.5 tons · 17,000 Btu/h · DuctlessGreat2.10
  17. 867TSHG12E1O22NAR45Owith ductless indoor unit TSHG12E1O22NAR45IManuflow1 ton · 12,000 Btu/h · DuctlessGreat2.10
  18. 868TSHG12E2M23NAR45Owith ductless indoor unit TSHG12E2M23NAR45IManuflow1 ton · 12,000 Btu/h · DuctlessGreat2.10
  19. 869MTH24-12K115V/Owith ductless indoor unit MTH24-12K115V/IMapleTemp1 ton · 12,000 Btu/h · DuctlessGreat2.10
  20. 870MTH24-12K220V/Owith ductless indoor unit MTH24-12K220V/IMapleTemp1 ton · 12,000 Btu/h · DuctlessGreat2.10
  21. 87137MVRAQ18AA3with ductless indoor unit D5MVHAQ18XA3Midea1.5 tons · 17,000 Btu/h · DuctlessGreat2.10
  22. 872D5CVRAH18AAKwith ductless indoor unit D5FVHAH18XAKMidea1.5 tons · 17,000 Btu/h · DuctlessGreat2.10
  23. 873M5CVRAQ18AA3with ductless indoor unit M5FVHAQ18XA3Midea1.5 tons · 17,000 Btu/h · DuctlessGreat2.10
  24. 874MO1AS-H18B-2Awith ductless indoor unit MSFNS-H18B-2AMidea1.5 tons · 17,000 Btu/h · DuctlessGreat2.10
  25. 875MOU-B18H-2with ducted air handler MIU-B18D-2Midea (sold as CTMorley)1.5 tons · 17,500 Btu/h · DuctedGood2.10

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