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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, 3.5–4.5 tons: every model, highest efficiency on a 5°f day first

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

Showing Ductless, 3.5–4.5 tons (39,000–56,999 Btu/h cooling). What size is my system?

  1. 3014C28LCH48H21with ducted air handler 4C28LEDH48H21CanAir4 tons · 48,000 Btu/h · DuctedGood2.00
  2. 3024C28MC648H21CanAir4 tons · 47,000 Btu/h · DuctlessBelow the middle2.00
  3. 303CPM5B1-H48A-OCapella4 tons · 47,000 Btu/h · DuctlessBelow the middle2.00
  4. 304CPM5B1V-H48A-OCapella4 tons · 47,000 Btu/h · DuctlessBelow the middle2.00
  5. 30537MBHAQ48AA3with ducted air handler 45MBAAQ48XA3Carrier4 tons · 48,000 Btu/h · DuctedGood2.00
  6. 30637MGHAQ48FA3Carrier (sold as Bryant)4 tons · 47,000 Btu/h · DuctlessBelow the middle2.00
  7. 30737VMB048HDS3-1Carrier4 tons · 48,000 Btu/h · DuctlessBelow the middle2.00
  8. 308D5CLHAH48AAKwith ducted air handler D5FLAAH48XAKCarrier (sold as Arcoaire)4 tons · 48,000 Btu/h · DuctedGood2.00
  9. 309D5CMHAH48FAKCarrier (sold as Arcoaire)4 tons · 47,000 Btu/h · DuctlessBelow the middle2.00
  10. 310RAV-BP481AT2P-ULwith ductless indoor unit RAV-HB481UTP-ULCarrier (sold as Toshiba Carrier)4 tons · 48,000 Btu/h · DuctlessBelow the middle2.00
  11. 311A-VHP486A-1Century4 tons · 47,000 Btu/h · DuctlessBelow the middle2.00
  12. 312MZR454-42CHA2-OClassic America3.5 tons · 42,000 Btu/h · DuctlessBelow the middle2.00
  13. 313TMRHC42AS5CLASSIC3.5 tons · 42,000 Btu/h · DuctlessBelow the middle2.00
  14. 314MU-CSU48HEI2NAM0T24-6POClima Smart4 tons · 48,000 Btu/h · DuctlessBelow the middle2.00
  15. 315NOVA-MULTI42HEClimanova3.5 tons · 42,000 Btu/h · DuctlessBelow the middle2.00
  16. 316C32-MZ-5COMFORTSTAR3.5 tons · 42,000 Btu/h · DuctlessBelow the middle2.00
  17. 317C32-MZ-5*COMFORTSTAR3.5 tons · 42,000 Btu/h · DuctlessBelow the middle2.00
  18. 318CHF3-48DU(O)with ducted air handler AHU3-48DU(I)COMFORTSTAR4 tons · 48,000 Btu/h · DuctedGood2.00
  19. 319CMIT-55-5ZCOMFORTSTAR3.5 tons · 42,000 Btu/h · DuctlessBelow the middle2.00
  20. 320CMIT-55-5Z*COMFORTSTAR4 tons · 45,000 Btu/h · DuctlessBelow the middle2.00
  21. 321CVH3-48-6SHCOMFORTSTAR4 tons · 45,000 Btu/h · DuctlessBelow the middle2.00
  22. 322CICON422-MRCONFORTOTAL3.5 tons · 42,000 Btu/h · DuctlessBelow the middle2.00
  23. 323500006193Convectair4 tons · 45,000 Btu/h · DuctlessBelow the middle2.00
  24. 324CH-R48LCU-230VOwith ducted air handler CH-RSH48LCCTCooper&Hunter4 tons · 48,000 Btu/h · DuctedGood2.00
  25. 325CH-RHP48LCU-230VOwith ducted air handler CH-RS48LCAHUCooper&Hunter4 tons · 48,000 Btu/h · DuctedGood2.00

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