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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. 1976SU-AORAKI18-230/Owith ductless indoor unit SU-AORAKI18-230/IGree (sold as Tosot)1.5 tons · 18,000 Btu/h · DuctlessBelow the middle1.90
  2. 1977TAVCI7H4R18with ductless indoor unit TAVEM7H4R18-SGree (sold as Tosot)1.5 tons · 18,000 Btu/h · DuctlessBelow the middle1.90
  3. 1978TW18HP32A2DOwith ductless indoor unit TW18HCL32A5DIGree (sold as Tosot)1.5 tons · 18,000 Btu/h · DuctlessBelow the middle1.90
  4. 1979TW18HP32A2DOCwith ductless indoor unit TW18HP32A2DICGree (sold as Tosot)1.5 tons · 18,000 Btu/h · DuctlessBelow the middle1.90
  5. 1980TW18WH25A1DOwith ductless indoor unit TW18WH25A1DIGree (sold as Tosot)1.5 tons · 18,000 Btu/h · DuctlessBelow the middle1.90
  6. 1981TWH12JD32AOwith ductless indoor unit TWH12JD32AIGree (sold as Tosot)1 ton · 12,000 Btu/h · DuctlessBelow the middle1.90
  7. 1982TWH18AG25D6DOwith ductless indoor unit TWH18AG25D6DIGree (sold as Tosot)1.5 tons · 18,000 Btu/h · DuctlessBelow the middle1.90
  8. 1983TWH18AUC25R32A1DOwith ductless indoor unit TWH18AUC25R32A1DIGree (sold as Tosot)1.5 tons · 18,000 Btu/h · DuctlessBelow the middle1.90
  9. 1984TWH18PD32AOwith ductless indoor unit TWH18PD32AIGree (sold as Tosot)1.5 tons · 18,000 Btu/h · DuctlessBelow the middle1.90
  10. 1985TWH18PR32DOwith ductless indoor unit TWH18PR32DIGree (sold as Tosot)1.5 tons · 18,000 Btu/h · DuctlessBelow the middle1.90
  11. 1986VIR18HP230V1R32AOwith ductless indoor unit VIR18HP230V1R32AHGree1.5 tons · 18,000 Btu/h · DuctlessBelow the middle1.90
  12. 1987GRID18OHVwith ductless indoor unit GRID18WHVGridless1.5 tons · 18,000 Btu/h · DuctlessBelow the middle1.90
  13. 1988GHS12H5MWAHD05with ductless indoor unit GHS12H5MWAHD05HAVELLS1 ton · 12,000 Btu/h · DuctlessBelow the middle1.90
  14. 1989GHS12H5RWAHD05with ductless indoor unit GHS12H5RWAHD05HAVELLS1 ton · 12,000 Btu/h · DuctlessBelow the middle1.90
  15. 1990GOS18V0RWAHD05with ductless indoor unit GOS18V0RWAHD05HAVELLS1.5 tons · 18,300 Btu/h · DuctlessBelow the middle1.90
  16. 1991HVHZ-18V2Dwith ductless indoor unit HAHZ-18V2DHAXXAIR1.5 tons · 18,000 Btu/h · DuctlessBelow the middle1.90
  17. 1992DS-2MS0912HC240with ductless indoor unit DS-2MS0912HE240HEMA1 ton · 9,000 Btu/h · DuctlessBelow the middle1.90
  18. 1993DS-2MS1211HC170with ductless indoor unit DS-2MS1211HE170HEMA1 ton · 11,500 Btu/h · DuctlessBelow the middle1.90
  19. 1994H12FB1with ductless indoor unit H12FB1-IHessaire1 ton · 12,000 Btu/h · DuctlessBelow the middle1.90
  20. 1995H12FB1*with ductless indoor unit H12FB1Hessaire1 ton · 12,000 Btu/h · DuctlessBelow the middle1.90
  21. 1996H12TT1with ductless indoor unit H12TT1Hessaire1 ton · 12,000 Btu/h · DuctlessBelow the middle1.90
  22. 1997H18FB2with ductless indoor unit H18FB2Hessaire1.5 tons · 18,000 Btu/h · DuctlessBelow the middle1.90
  23. 1998AO-12U1R25SS1with ductless indoor unit AS-12U1RDL25SS1Hisense1 ton · 12,000 Btu/h · DuctlessBelow the middle1.90
  24. 1999AO-18U3T25Uwith ductless indoor unit ASU-18U3THB25UHisense1.5 tons · 18,000 Btu/h · DuctlessBelow the middle1.90
  25. 2000AO-18U3T26U2with ductless indoor unit ASU-18U3THB25UHisense1.5 tons · 18,000 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