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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. 1951GMS9-2 PROwith ductless indoor unit GMS9-2 PROGARVEE1 ton · 9,000 Btu/h · DuctlessBelow the middle1.90
  2. 1952GMS9 PROwith ductless indoor unit GMS9 PROGARVEE1 ton · 9,000 Btu/h · DuctlessBelow the middle1.90
  3. 1953GMSC12-Awith ductless indoor unit GMSC12-BGARVEE1 ton · 12,000 Btu/h · DuctlessBelow the middle1.90
  4. 1954GNS18HCH21R454Owith ductless indoor unit GNS18HCH21R454IGENERALLUX STAR1.5 tons · 18,000 Btu/h · DuctlessBelow the middle1.90
  5. 1955TAC12CHSAG1R32O17with ductless indoor unit TAC12CHSAG1R32I17Generallux1 ton · 11,500 Btu/h · DuctlessBelow the middle1.90
  6. 1956ENV18HP230V1R32AOwith ductless indoor unit ENV18HP230V1R32AHGree1.5 tons · 18,000 Btu/h · DuctlessBelow the middle1.90
  7. 1957GS18HP230V1CLOwith ductless indoor unit GS18HP230V1CLIGree1.5 tons · 18,000 Btu/h · DuctlessBelow the middle1.90
  8. 1958GS18HP230V1PUOwith ductless indoor unit GS18HP230V1PUIGree1.5 tons · 18,000 Btu/h · DuctlessBelow the middle1.90
  9. 1959GWH09ATCXB-A6DNA1B/Owith ductless indoor unit GWH09ATCXB-A6DN***/IGree1 ton · 9,100 Btu/h · DuctlessBelow the middle1.90
  10. 1960GWH09ATCXB-D6DNA1B/Owith ductless indoor unit GWH09ATCXB-D6DN***/IGree1 ton · 9,100 Btu/h · DuctlessBelow the middle1.90
  11. 1961GWH09AWCXB-A6DNA1A/Owith ductless indoor unit GWH09AWCXB-A6DN***/IGree1 ton · 9,100 Btu/h · DuctlessBelow the middle1.90
  12. 1962GWH09AWCXB-D6DNA1A/Owith ductless indoor unit GWH09AWCXB-D6DN***/IGree1 ton · 9,100 Btu/h · DuctlessBelow the middle1.90
  13. 1963GWH09BDCXE-D6DNA1C/Owith ductless indoor unit GWH09BDCXE-D6DN***/IGree1 ton · 9,100 Btu/h · DuctlessBelow the middle1.90
  14. 1964GWH12ATCXD-A6DNA1B/Owith ductless indoor unit GWH12ATCXD-A6DN***/IGree1 ton · 12,000 Btu/h · DuctlessBelow the middle1.90
  15. 1965GWH12ATCXD-D6DNA1B/Owith ductless indoor unit GWH12ATCXD-D6DN***/IGree1 ton · 12,000 Btu/h · DuctlessBelow the middle1.90
  16. 1966GWH12AYBXB-D6DNA1D/Owith ductless indoor unit GFH(12)DA-D6DN***/IGree1 ton · 12,000 Btu/h · DuctlessBelow the middle1.90
  17. 1967GWH18AGDXF-D6DNA4A/Owith ductless indoor unit GWH18AGDXF-D6DN***/IGree1.5 tons · 18,000 Btu/h · DuctlessBelow the middle1.90
  18. 1968GWH18AGDXF-D6DNA4B/Owith ductless indoor unit GWH18AGDXF-D6DN***/IGree1.5 tons · 18,000 Btu/h · DuctlessBelow the middle1.90
  19. 1969GWH18ATDXE-D6DNA1C/Owith ductless indoor unit GWH18ATDXE-D6DN***/IGree1.5 tons · 18,000 Btu/h · DuctlessBelow the middle1.90
  20. 1970GWH18AUDXF-D6DNA1A/Owith ductless indoor unit GWH18AUDXF-D6DN***/IGree1.5 tons · 18,000 Btu/h · DuctlessBelow the middle1.90
  21. 1971GWH18AWDXD-D6DNA1B/Owith ductless indoor unit GWH18AWDXD-D6DN***/IGree1.5 tons · 18,000 Btu/h · DuctlessBelow the middle1.90
  22. 1972KW18XQ25PDOwith ductless indoor unit KW18XQ25PDIGree (sold as Kinghome)1.5 tons · 18,000 Btu/h · DuctlessBelow the middle1.90
  23. 1973KW18XQ25S1DOwith ductless indoor unit KW18XQ25S1DIGree (sold as Kinghome)1.5 tons · 18,000 Btu/h · DuctlessBelow the middle1.90
  24. 1974KW18XQ25SDOwith ductless indoor unit KW18XQ25SDIGree (sold as Kinghome)1.5 tons · 18,000 Btu/h · DuctlessBelow the middle1.90
  25. 1975KWP09R32C3Owith ductless indoor unit KWP09R32C3IGree (sold as Kinghome)1 ton · 9,100 Btu/h · DuctlessBelow the middle1.90

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