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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. 4264PAMS48-HH-MZO5PERFECTAIRE4 tons · 45,000 Btu/h · DuctlessBelow the middle2.00
  2. 4274PAMS48-HH-MZO6PERFECTAIRE4 tons · 45,000 Btu/h · DuctlessBelow the middle2.00
  3. 428YN050GLSI24M5GPioneer3.5 tons · 42,000 Btu/h · DuctlessBelow the middle2.00
  4. 429EZ-48Z-M5BPolarWave3.5 tons · 43,000 Btu/h · DuctlessBelow the middle2.00
  5. 430PIAWMZ4282480ABPREMIUM LEVELLA3.5 tons · 42,000 Btu/h · DuctlessBelow the middle2.00
  6. 431PMUL-H6P-48HP-MProair4 tons · 45,000 Btu/h · DuctlessBelow the middle2.00
  7. 432RDZ-45MHP-230V-ORAMSOND3.5 tons · 42,000 Btu/h · DuctlessBelow the middle2.00
  8. 433ML48HP230LCMH-Owith ducted air handler ML48HP230RS485AHU-IRheem (sold as Mainline)4 tons · 48,000 Btu/h · DuctedGood2.00
  9. 434ML48HP230MULH-ORheem (sold as Mainline)4 tons · 45,000 Btu/h · DuctlessBelow the middle2.00
  10. 435ML48HP230MULH-O*Rheem (sold as Mainline)4 tons · 47,000 Btu/h · DuctlessBelow the middle2.00
  11. 436RV42M2/19-OROVSUN3.5 tons · 42,000 Btu/h · DuctlessBelow the middle2.00
  12. 437HMZ48H525ZMOSEA BREEZE+4 tons · 47,000 Btu/h · DuctlessBelow the middle2.00
  13. 438SENA-48HF-MOASenville4 tons · 47,000 Btu/h · DuctlessBelow the middle2.00
  14. 439SAC003-B-42KWH-USTPSimzlife3.5 tons · 42,000 Btu/h · DuctlessBelow the middle2.00
  15. 440SHC48AH2AGwith ducted air handler SHD48AC2AGSLIMAIR4 tons · 48,000 Btu/h · DuctedGood2.00
  16. 441SHC6Z48AH2AGSLIMAIR4 tons · 45,000 Btu/h · DuctlessBelow the middle2.00
  17. 442AC116742CZSLOMIN'S4 tons · 45,000 Btu/h · DuctlessBelow the middle2.00
  18. 443SMZ5B1-H48A-OStelpro4 tons · 47,000 Btu/h · DuctlessBelow the middle2.00
  19. 444SMZ5B1V-H48A-OStelpro4 tons · 47,000 Btu/h · DuctlessBelow the middle2.00
  20. 445H42FMH20XPCTCL3.5 tons · 42,000 Btu/h · DuctlessBelow the middle2.00
  21. 446H42FMH22XQCTCL3.5 tons · 42,000 Btu/h · DuctlessBelow the middle2.00
  22. 447H48FMHD6XPCTCL4 tons · 48,000 Btu/h · DuctlessBelow the middle2.00
  23. 448H55FMHD6XPCTCL4.5 tons · 55,000 Btu/h · DuctlessBelow the middle2.00
  24. 449TMH42HDI2NAO0U25TCL3.5 tons · 42,000 Btu/h · DuctlessBelow the middle2.00
  25. 450TMH42HDI2NAO0U25*TCL3.5 tons · 42,000 Btu/h · DuctlessBelow the middle2.00

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