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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.

Ducted, 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 Ducted, Up to 1.5 tons (under 21,000 Btu/h cooling). What size is my system?

  1. 826TSMZHH183Z2R5TEMP SHIFT1.5 tons · 19,000 Btu/h · DuctlessGood2.00
  2. 827GMRSHT18AS2TGM1.5 tons · 18,000 Btu/h · DuctlessGood2.00
  3. 828TMRHT18AS2TGM1.5 tons · 18,000 Btu/h · DuctlessGood2.00
  4. 829THP-GUD18W2/NHE-D(U)with ducted air handler THP-GUD18AH2/E-D(U)The Heat Pump1.5 tons · 18,000 Btu/h · DuctedGood2.00
  5. 830TZID18H520ZCSwith ducted air handler TZID18H520ZAMTHERMAL ZONE1.5 tons · 18,000 Btu/h · DuctedGood2.00
  6. 831TZSP14AY18AJ2Nwith ducted air handler TZHDYTST2417*NANTHERMAL ZONE1.5 tons · 17,100 Btu/h · DuctedGood2.00
  7. 832T7HH25D-H224-CTHERMOCORE SYSTEMS1.5 tons · 19,000 Btu/h · DuctlessGood2.00
  8. 833WLWHD(18)ND6MOTRUENORTH1.5 tons · 18,000 Btu/h · DuctlessGood2.00
  9. 834AH18H/O64Pwith ducted air handler AH18H/I64PTRUST AIR CONDITIONERS1.5 tons · 18,000 Btu/h · DuctedGood2.00
  10. 835M3H18HN/O6S4PTRUST AIR CONDITIONERS1.5 tons · 19,000 Btu/h · DuctlessGood2.00
  11. 836M3H18HS/O6S4PTRUST AIR CONDITIONERS1.5 tons · 19,000 Btu/h · DuctlessGood2.00
  12. 837D5CMHAH18CAKViessmann1.5 tons · 19,000 Btu/h · DuctlessGood2.00
  13. 838URHT-18FM2N4VKIN1.5 tons · 18,000 Btu/h · DuctlessGood2.00
  14. 839WOM-18HH3/230Wells1.5 tons · 19,000 Btu/h · DuctlessGood2.00
  15. 840AUHW12KR32-Owith ductless indoor unit AUHW12KR32-IWILLIS1 ton · 12,000 Btu/h · DuctlessGood2.00
  16. 841MZUHW18KR32-OWILLIS1.5 tons · 18,000 Btu/h · DuctlessGood2.00
  17. 842XHU18HPV1AOwith ducted air handler XHU18HPV1AIXTRON1.5 tons · 18,000 Btu/h · DuctedGood2.00
  18. 843XM2-H18/2DR3AXTRON1.5 tons · 17,700 Btu/h · DuctlessGood2.00
  19. 844Z2SOV-18HDTB-USZERO1.5 tons · 18,000 Btu/h · DuctlessGood2.00
  20. 845Z4SOV-18HDMB-USHHZERO1.5 tons · 19,000 Btu/h · DuctlessGood2.00
  21. 846ZSOVA-18HDMB-USwith ducted air handler ZAVA-18HDMB-USZERO1.5 tons · 18,000 Btu/h · DuctedGood2.00
  22. 847ZSOVA-18HDMB-USHHwith ducted air handler ZAVA-18HDMB-USZERO1.5 tons · 18,000 Btu/h · DuctedGood2.00
  23. 848ACIQ-12ZPL-HP230Cwith ductless indoor unit ACIQ-12CC-HH-MC1HVAC1 ton · 12,000 Btu/h · DuctlessGood1.99
  24. 849ACIQ-12ZPL-HP230Cwith ductless indoor unit ACIQ-12CC-HH-MCACIQ1 ton · 12,000 Btu/h · DuctlessGood1.99
  25. 850AO25-12N2-M1Hwith ductless indoor unit AC-12N2-M1AI AIR CONDITIONING1 ton · 12,000 Btu/h · DuctlessGood1.99

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