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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. 501SHC18AH2AGwith ducted air handler SHD18AC2AGSLIMAIR1.5 tons · 17,500 Btu/h · DuctedGood2.10
  2. 502SEPB-H18A-Owith ducted air handler SFCB1-H18A-IStelpro1.5 tons · 17,500 Btu/h · DuctedGood2.10
  3. 503TSH12HEI2NAO0T24*with ductless indoor unit TSH12IEI2NAO0T24TCL1 ton · 12,000 Btu/h · DuctlessGreat2.10
  4. 504TSSZHH182R5with ducted air handler TSDT182R5TEMP SHIFT1.5 tons · 17,500 Btu/h · DuctedGood2.10
  5. 505OAH18H/O6S4Pwith ducted air handler IUMDH18H/I63PTRUST AIR CONDITIONERS1.5 tons · 17,500 Btu/h · DuctedGood2.10
  6. 506D5CURAH18AAKwith ducted air handler D5MUWAQ18XA3Viessmann1.5 tons · 18,000 Btu/h · DuctedGood2.10
  7. 507VH412E2S11with ducted air handler VHE12B5YK2SS1York1 ton · 14,000 Btu/h · DuctedGood2.10
  8. 5085TWX6018A1with indoor coil 5PX*BD06AS3+TSTAT and furnace S8V2B080M4PCBTrane1.5 tons · 19,300 Btu/h · DuctedGood2.09
  9. 509NHP5183000Awith ducted air handler L(E,F)W36CJNATIONAL1.5 tons · 17,300 Btu/h · DuctedGood2.07
  10. 5107HP14F18P-**Awith ducted air handler 7AH2AV24PXCBreeze331.5 tons · 18,000 Btu/h · DuctedGood2.06
  11. 5114CDH2018C21with ducted air handler CEB-24MX1421CanAir1.5 tons · 18,000 Btu/h · DuctedGood2.06
  12. 512CCOXHB24V18HPwith ducted air handler CCOBCC1824ACustom Comfort1.5 tons · 18,000 Btu/h · DuctedGood2.06
  13. 513DIRM4-18MAGICPRO20-OUwith ducted air handler DIRM4-2414MAGICP20-CCOILDIRECT AIR1.5 tons · 18,000 Btu/h · DuctedGood2.06
  14. 514ECUO-18Hwith ducted air handler ECCA-24UECO-AIR1.5 tons · 18,000 Btu/h · DuctedGood2.06
  15. 515ESHMA18R2AN*with ducted air handler GCHMA24RAASELIOS1.5 tons · 18,000 Btu/h · DuctedGood2.06
  16. 516ESHMA18R2AN1with ducted air handler GCHMA24RBAS1ELIOS1.5 tons · 18,000 Btu/h · DuctedGood2.06
  17. 517AOUH12KUAS1with ducted air handler AMUH12KUASFujitsu1 ton · 12,000 Btu/h · DuctedGood2.06
  18. 518A-KX12P18SA-1with ducted air handler MXP18/24A1AKerr Kapstone1.5 tons · 18,000 Btu/h · DuctedGood2.06
  19. 519A-KXP18SA-1with ducted air handler KXP18/24A1AKerr1.5 tons · 18,000 Btu/h · DuctedGood2.06
  20. 520A-KXP18TA-1with ducted air handler KXP18/24A1AKerr1.5 tons · 18,000 Btu/h · DuctedGood2.06
  21. 521A-VXP18TA-1with ducted air handler MXP18/24A1ALennox (sold as Comfort-Aire)1.5 tons · 18,000 Btu/h · DuctedGood2.06
  22. 522MAMOX430-18HFN10-M3Xwith ducted air handler MAMVBM-24A18T3N10MITS AIR1.5 tons · 18,000 Btu/h · DuctedGood2.06
  23. 523MSHMA18R2AN*with ducted air handler GCHMA24RAASMOOVAIR1.5 tons · 18,000 Btu/h · DuctedGood2.06
  24. 524CU-HM18BAHUwith ducted air handler CS-HM24BAAU1Panasonic1.5 tons · 18,000 Btu/h · DuctedGood2.06
  25. 525P30-18CENHP-R454with ducted air handler PAC-24B18T-INTProair1.5 tons · 18,000 Btu/h · DuctedGood2.06

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.

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