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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, 2.5–3 tons: every model, highest efficiency on a 5°f day first

One size class at a time, so the numbers compare directly.

Showing Ducted, 2.5–3 tons (27,000–38,999 Btu/h cooling). What size is my system?

  1. 1601ZOD-36HIN4-M-SE18with ducted air handler ZVMXFB-36HI1N4-C-M-SE18iCongo3 tons · 36,000 Btu/h · DuctedBelow the middle1.80
  2. 1602ZOD-36HIN4-M-SE18Hwith ducted air handler ZVMXFB-36HI1N4-C-M-SE18iCongo3 tons · 36,000 Btu/h · DuctedBelow the middle1.80
  3. 1603ZOT6P-36HIN4-M-SE15with ducted air handler ZVMQFB-36HIN4L-M-SE15iCongo3 tons · 34,200 Btu/h · DuctedBelow the middle1.80
  4. 1604QOM27H2BM3AInnovair2.5 tons · 27,000 Btu/h · DuctlessBelow the middle1.80
  5. 1605KAHU-36IR32HS15Pwith ducted air handler KAHU-36IR32HS15PKANIONco3 tons · 36,000 Btu/h · DuctedBelow the middle1.80
  6. 1606K18HVH36WD2UN3with ducted air handler K18HVH36WD2HN3KeplerX3 tons · 36,000 Btu/h · DuctedBelow the middle1.80
  7. 160737MUHAQ36AA3with ducted air handler L*31/37U+TXV+TDLennox3 tons · 34,000 Btu/h · DuctedBelow the middle1.80
  8. 1608MMLD030S6S-1Pwith ductless indoor unit M33D030S6-1PLennox2.5 tons · 30,000 Btu/h · DuctlessBelow the middle1.80
  9. 1609MMLD036S6S-1Pwith ducted air handler MDDD036S6-1PLennox3 tons · 36,000 Btu/h · DuctedBelow the middle1.80
  10. 1610MMPD030S6S-1Pwith ductless indoor unit M33D030S6-1PLennox2.5 tons · 30,000 Btu/h · DuctlessBelow the middle1.80
  11. 1611MMPD036S6S-1Pwith ducted air handler MDDD036S6-1PLennox3 tons · 36,000 Btu/h · DuctedBelow the middle1.80
  12. 1612SDH036U5E**GLennox3 tons · 35,000 Btu/h · DuctedBelow the middle1.80
  13. 1613SDH036U5E**JLennox3 tons · 35,000 Btu/h · DuctedBelow the middle1.80
  14. 1614SHH036U5E**GLennox3 tons · 35,000 Btu/h · DuctedBelow the middle1.80
  15. 1615SHH036U5E**JLennox3 tons · 35,000 Btu/h · DuctedBelow the middle1.80
  16. 1616KUSUB301Awith ducted air handler KNSLB301ALG2.5 tons · 27,000 Btu/h · DuctedBelow the middle1.80
  17. 1617KUSUB361Awith ducted air handler KNSLB361ALG3 tons · 33,000 Btu/h · DuctedBelow the middle1.80
  18. 1618MDV-V30WMN10T-Hwith ducted air handler MCPM3036BN10THMidea2.5 tons · 30,000 Btu/h · DuctedBelow the middle1.80
  19. 1619MRD-36HWD1N10-M18GMidea3 tons · 34,200 Btu/h · DuctedBelow the middle1.80
  20. 1620MRD-36HWD1N10-M18GBMidea3 tons · 34,200 Btu/h · DuctedBelow the middle1.80
  21. 1621MSHMA30R2AN*with indoor coil GCHMA36RBAS and furnace RG19060B12MPSMOOVAIR2.5 tons · 29,000 Btu/h · DuctedBelow the middle1.80
  22. 1622MSHMB36R2AN*with indoor coil GCHMA36RBAS and furnace RG19060B12MPSMOOVAIR3 tons · 36,000 Btu/h · DuctedBelow the middle1.80
  23. 1623OAH-AHU30K-CH-Owith ducted air handler OAH-AHU30K-CH-DORTECH2.5 tons · 30,000 Btu/h · DuctedBelow the middle1.80
  24. 1624PRD-36HWD1N10-M18GPioneer3 tons · 34,200 Btu/h · DuctedBelow the middle1.80
  25. 1625ATF36B1-BBH4Uwith ducted air handler ATF36B1-BBH4UPuremind3 tons · 36,000 Btu/h · DuctedBelow the middle1.80

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