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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. 3101TSHWA230-12K-Owith ductless indoor unit TSHWA230-12K-IWaykar1 ton · 12,000 Btu/h · DuctlessBelow the middle1.80
  2. 3102TSHWA230-18K-32-Owith ductless indoor unit TSHWA230-18K-32-IWaykar1.5 tons · 18,000 Btu/h · DuctlessBelow the middle1.80
  3. 3103TSHWA230-18K-Owith ductless indoor unit TSHWA230-18K-IWaykar1.5 tons · 18,000 Btu/h · DuctlessBelow the middle1.80
  4. 3104TSHWE115-09K-32-Owith ductless indoor unit TSHWE115-09K-32-IWaykar1 ton · 9,000 Btu/h · DuctlessBelow the middle1.80
  5. 3105TSHWE115-12K-32-Owith ductless indoor unit TSHWE115-12K-32-IWaykar1 ton · 12,000 Btu/h · DuctlessBelow the middle1.80
  6. 3106TSHWE115-12K-Owith ductless indoor unit TSHWE115-12K-IWaykar1 ton · 12,000 Btu/h · DuctlessBelow the middle1.80
  7. 3107TSHWE230-09K-32-Owith ductless indoor unit TSHWE230-09K-32-IWaykar1 ton · 9,000 Btu/h · DuctlessBelow the middle1.80
  8. 3108TSHWE230-12K-32-Owith ductless indoor unit TSHWE230-12K-32-IWaykar1 ton · 12,000 Btu/h · DuctlessBelow the middle1.80
  9. 3109TSHWE230-12K-Owith ductless indoor unit TSHWE230-12K-IWaykar1 ton · 12,000 Btu/h · DuctlessBelow the middle1.80
  10. 3110TSHWE230-18K-32-Owith ductless indoor unit TSHWE230-18K-32-IWaykar1.5 tons · 18,000 Btu/h · DuctlessBelow the middle1.80
  11. 3111TSHWE230-18K-Owith ductless indoor unit TSHWE230-18K-IWaykar1.5 tons · 18,000 Btu/h · DuctlessBelow the middle1.80
  12. 3112AUHW18KR32-Owith ductless indoor unit AUHW18KR32-IWILLIS1.5 tons · 18,000 Btu/h · DuctlessBelow the middle1.80
  13. 3113CHW12KR32-Owith ductless indoor unit CHW12KR32-IWILLIS1 ton · 12,000 Btu/h · DuctlessBelow the middle1.80
  14. 3114UPC09CN23STG1with ductless indoor unit UNI09HW23STG1York (sold as Guardian)1 ton · 9,000 Btu/h · DuctlessBelow the middle1.80
  15. 3115YRACGJ09WHAAwith ductless indoor unit YRAKGJ09PHAAYork1 ton · 9,000 Btu/h · DuctlessBelow the middle1.80
  16. 3116ZMSB-09HVT110-USR1-S23-Owith ductless indoor unit ZMSB-09HVT110-USR1-S23-IZERO1 ton · 9,000 Btu/h · DuctlessBelow the middle1.80
  17. 3117ZMSB-09HVT-USHHCR2with ductless indoor unit ZMSB-09HVT-USHHCR2ZERO1 ton · 9,000 Btu/h · DuctlessBelow the middle1.80
  18. 3118ZMSB-09HVT-USR1-S23-Owith ductless indoor unit ZMSB-09HVT-USR1-S23-IZERO1 ton · 9,000 Btu/h · DuctlessBelow the middle1.80
  19. 3119ZMSB-09HV-USHHCR2-Owith ductless indoor unit ZMSB-09HV-USHHCR2-IZERO1 ton · 9,000 Btu/h · DuctlessBelow the middle1.80
  20. 3120ZMSB-12HVT110-USR1-S24-Owith ductless indoor unit ZMSB-12HVT110-USR1-S24-IZERO1 ton · 12,000 Btu/h · DuctlessBelow the middle1.80
  21. 3121ZMSB-12HVT-USHHCR2with ductless indoor unit ZMSB-12HVT-USHHCR2ZERO1 ton · 12,000 Btu/h · DuctlessBelow the middle1.80
  22. 3122ZMSB-12HVT-USR1-S24-Owith ductless indoor unit ZMSB-12HVT-USR1-S24-IZERO1 ton · 12,000 Btu/h · DuctlessBelow the middle1.80
  23. 3123ZMSB-12HVT-USR2with ductless indoor unit ZMSB-12HVT-USR2ZERO1 ton · 12,000 Btu/h · DuctlessBelow the middle1.80
  24. 3124ZMSB-12HV-USHHCR2-Owith ductless indoor unit ZMSB-12HV-USHHCR2-IZERO1 ton · 12,000 Btu/h · DuctlessBelow the middle1.80
  25. 3125ZMSB-12HV-USR2-Owith ductless indoor unit ZMSB-12HV-USR2-IZERO1 ton · 12,000 Btu/h · DuctlessBelow the middle1.80

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