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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, 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 Ductless, Up to 1.5 tons (under 21,000 Btu/h cooling). What size is my system?

  1. 351KEENSTZHP19AAKEEN Home1.5 tons · 18,000 Btu/h · DuctedGreat2.30
  2. 352KMIR319-H221-4KLIMAIRE1.5 tons · 18,000 Btu/h · DuctedGreat2.30
  3. 353KUMXB181ALG1.5 tons · 18,000 Btu/h · DuctlessTop 10%2.30
  4. 354KUSXB091Awith ducted air handler KNUJB091ALG1 ton · 9,000 Btu/h · DuctedGreat2.30
  5. 355KUSXB121Awith ducted air handler KNUJB121ALG1 ton · 12,000 Btu/h · DuctedGreat2.30
  6. 356M3OX430-18HFN10-M1*Midea (sold as MDV)1.5 tons · 18,000 Btu/h · DuctedGreat2.30
  7. 357M3OX430-18HFN10-M1-D*Midea (sold as MDV)1.5 tons · 18,000 Btu/h · DuctedGreat2.30
  8. 358MOU-2B18G-2Midea (sold as CTMorley)1.5 tons · 18,000 Btu/h · DuctedGreat2.30
  9. 359MOU-3B18G-2Midea (sold as CTMorley)1.5 tons · 18,000 Btu/h · DuctedGreat2.30
  10. 360MOX3-12HFN10AEwith ductless indoor unit MSEP-12HFN10AEMidea1 ton · 12,000 Btu/h · DuctlessTop 10%2.30
  11. 361PUZ-AK12NL***with ductless indoor unit PLA-AE12NLMitsubishi Electric1 ton · 12,000 Btu/h · DuctlessTop 10%2.30
  12. 362PUZ-AK12NL2***with ductless indoor unit PLA-AE12NLMitsubishi Electric1 ton · 12,000 Btu/h · DuctlessTop 10%2.30
  13. 363RO-MT18-LA-QMitsutomo1.5 tons · 18,000 Btu/h · DuctedGreat2.30
  14. 364MSHEA12C2AN*with ductless indoor unit MWHEA12C2ANMOOVAIR1 ton · 12,000 Btu/h · DuctlessTop 10%2.30
  15. 36518MPC3-HE-BMulti MFG1.5 tons · 18,000 Btu/h · DuctedGreat2.30
  16. 366MOBMH180DNG Trade1.5 tons · 18,000 Btu/h · DuctedGreat2.30
  17. 367N3OX430-18HFN10-M1-DNutech1.5 tons · 18,000 Btu/h · DuctedGreat2.30
  18. 368PMUL-A3P-18HP-MProair1.5 tons · 18,000 Btu/h · DuctedGreat2.30
  19. 369SHC3Z18AC2AGSLIMAIR1.5 tons · 18,000 Btu/h · DuctedGreat2.30
  20. 370SAK-18-DZ/220VStar Air Kontrol1.5 tons · 18,000 Btu/h · DuctedGreat2.30
  21. 371M3S18HN/O6S4PTRUST AIR CONDITIONERS1.5 tons · 18,000 Btu/h · DuctedGreat2.30
  22. 372WOM-18RH3/230Wells1.5 tons · 18,000 Btu/h · DuctedGreat2.30
  23. 373YPAS12BUFASDQ1with ductless indoor unit YPCIMB12UFA1DQYork1 ton · 12,000 Btu/h · DuctlessTop 10%2.30
  24. 374Z3SOV-18HDMB-USZERO1.5 tons · 18,000 Btu/h · DuctedGreat2.30
  25. 375Z4SOV-18HDMB-USZERO1.5 tons · 18,000 Btu/h · DuctedGreat2.30

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