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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. 226MULTI6-48HP230C-OMRCOOL4 tons · 45,000 Btu/h · DuctedGood2.10
  2. 22748MPC6-HE-BMulti MFG4 tons · 45,000 Btu/h · DuctlessGreat2.10
  3. 22855MPC6-HH-BMulti MFG4.5 tons · 53,000 Btu/h · DuctedGood2.10
  4. 229MSH-60HD-Bwith ducted air handler 60HHHP0-C-M-BMulti MFG4.5 tons · 55,000 Btu/h · DuctedGood2.10
  5. 230MOBMH480DNG Trade4 tons · 45,000 Btu/h · DuctlessGreat2.10
  6. 231DXH42FMK3IHNortek Global HVAC (sold as Gibson)3.5 tons · 42,000 Btu/h · DuctlessGreat2.10
  7. 232LEA55MZ6P36-ONOVAIR4.5 tons · 53,000 Btu/h · DuctedGood2.10
  8. 233N6OE30-48HFN10-M1D-DNutech4 tons · 45,000 Btu/h · DuctlessGreat2.10
  9. 234OFRM5X1-H42A-OOUELLET3.5 tons · 42,000 Btu/h · DuctlessGreat2.10
  10. 2354PAMS55-HH-MZO5PERFECTAIRE4.5 tons · 53,000 Btu/h · DuctedGood2.10
  11. 2364PAMS55-HH-MZO6PERFECTAIRE4.5 tons · 53,000 Btu/h · DuctedGood2.10
  12. 237PMUL-A6P-48HP-MProair4 tons · 45,000 Btu/h · DuctlessGreat2.10
  13. 238PMUL-H6P-60HP-MProair4.5 tons · 53,000 Btu/h · DuctedGood2.10
  14. 239FPHFR48A3Dwith ducted air handler FPHFA48A3DRheem4 tons · 48,000 Btu/h · DuctedGood2.10
  15. 240ML48HP230MUL-ORheem (sold as Mainline)4 tons · 45,000 Btu/h · DuctlessGreat2.10
  16. 241ML48HP230MUL-O*Rheem (sold as Mainline)4 tons · 45,000 Btu/h · DuctedGood2.10
  17. 242ML55HP230MULH-ORheem (sold as Mainline)4.5 tons · 53,000 Btu/h · DuctedGood2.10
  18. 243ML55HP230MULH-O*Rheem (sold as Mainline)4.5 tons · 53,000 Btu/h · DuctedGood2.10
  19. 244ML60HP230LCMH-Owith ducted air handler ML60HP230HSDUC-IRheem (sold as Mainline)4.5 tons · 55,000 Btu/h · DuctedGood2.10
  20. 245HMZ55H525ZMOSEA BREEZE+4.5 tons · 53,000 Btu/h · DuctedGood2.10
  21. 246MZ48H525ZMOSEA BREEZE+4 tons · 45,000 Btu/h · DuctedGood2.10
  22. 247SENA-55HF-MOASenville4.5 tons · 53,000 Btu/h · DuctedGood2.10
  23. 248SHC55AH2AGwith ducted air handler SHD60AC2AGSLIMAIR4.5 tons · 55,000 Btu/h · DuctedGood2.10
  24. 249SHC6Z48AC2AGSLIMAIR4 tons · 45,000 Btu/h · DuctlessGreat2.10
  25. 250SHC6Z55AH2AGSLIMAIR4.5 tons · 53,000 Btu/h · DuctedGood2.10

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