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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. 1501HW12KUHR454B-Owith ductless indoor unit HW12KUHR454B-IWILLIS1 ton · 12,000 Btu/h · DuctlessGood2.00
  2. 1502MZUHW18KR32-OWILLIS1.5 tons · 18,000 Btu/h · DuctlessGood2.00
  3. 1503XM2-H18/2DR3AXTRON1.5 tons · 17,700 Btu/h · DuctlessGood2.00
  4. 1504IMHCAC-0032YITAHOME1.5 tons · 17,700 Btu/h · DuctlessGood2.00
  5. 1505YSAA12DL1AU-Wwith ductless indoor unit YSAA12DL1AU-NYITAHOME1 ton · 12,000 Btu/h · DuctlessGood2.00
  6. 1506YSAA12DN1AU-Wwith ductless indoor unit YSAA12DN1AU-NYITAHOME1 ton · 12,000 Btu/h · DuctlessGood2.00
  7. 1507YSAA12DR1AU-Wwith ductless indoor unit YSAA12DR1AU-NYITAHOME1 ton · 12,000 Btu/h · DuctlessGood2.00
  8. 1508YSAA12DT1AU-Wwith ductless indoor unit YSAA12DT1AU-NYITAHOME1 ton · 12,000 Btu/h · DuctlessGood2.00
  9. 1509Y21SQ-09HRDN2OUwith ductless indoor unit Y21SQ-09HRDN2YONAN1 ton · 9,000 Btu/h · DuctlessGood2.00
  10. 1510Y21SQ-12HRDN2OUwith ductless indoor unit Y21SQ-12HRDN2YONAN1 ton · 12,000 Btu/h · DuctlessGood2.00
  11. 1511YSA22-12HRDN8OUwith ductless indoor unit YSA22-12HRDN8INYONAN1 ton · 12,000 Btu/h · DuctlessGood2.00
  12. 1512YSAMO-18HRN1YONAN1.5 tons · 17,700 Btu/h · DuctlessGood2.00
  13. 1513URC12CN23STG1with ductless indoor unit UNI12HW23STG1York (sold as Guardian)1 ton · 12,000 Btu/h · DuctlessGood2.00
  14. 1514YRACGJ15WHBAwith ductless indoor unit YRAKGJ15PHBAYork1.5 tons · 15,000 Btu/h · DuctlessGood2.00
  15. 1515A7202P-12Kwith ductless indoor unit A7202S-12KZAFRO1 ton · 12,000 Btu/h · DuctlessGood2.00
  16. 1516A7202P-9Kwith ductless indoor unit A7202S-9KZAFRO1 ton · 9,000 Btu/h · DuctlessGood2.00
  17. 1517A7202PW-12Kwith ductless indoor unit A7202SW-12KZAFRO1 ton · 12,000 Btu/h · DuctlessGood2.00
  18. 1518ZE-09DB22Owith ductless indoor unit ZE-09DB22IZEPHYR1 ton · 9,000 Btu/h · DuctlessGood2.00
  19. 1519ZE-12CB22Owith ductless indoor unit ZE-12CB22IZEPHYR1 ton · 12,000 Btu/h · DuctlessGood2.00
  20. 1520ZE-12CB25Owith ductless indoor unit ZE-12CB25IZEPHYR1 ton · 12,000 Btu/h · DuctlessGood2.00
  21. 1521Z2SOV-18HDTA-US-OZERO1.5 tons · 18,000 Btu/h · DuctlessGood2.00
  22. 1522Z2SOV-18HDTB-USZERO1.5 tons · 18,000 Btu/h · DuctlessGood2.00
  23. 1523Z4SOV-18HDMB-USHHZERO1.5 tons · 19,000 Btu/h · DuctlessGood2.00
  24. 1524ZMSB-18HV-USHHCR2-Owith ductless indoor unit ZMSB-18HV-USHHCR2-IZERO1.5 tons · 18,000 Btu/h · DuctlessGood2.00
  25. 1525TMSC-18HA2/I2XI20B-OZOKOP1.5 tons · 18,000 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