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

  1. 251YWD1-10HD2/FC-6-WYoau1 ton · 10,000 Btu/h · DuctedGreat2.32
  2. 252ES-18Z-M3C1HVAC1.5 tons · 18,000 Btu/h · DuctlessTop 10%2.31
  3. 253ES-18Z-M3CACIQ1.5 tons · 18,000 Btu/h · DuctlessTop 10%2.31
  4. 254BMMZ18CBlueRidge1.5 tons · 18,000 Btu/h · DuctlessTop 10%2.31
  5. 255BXM1A18SC0BlueRidge1.5 tons · 18,000 Btu/h · DuctlessTop 10%2.31
  6. 256BMS500-AAM018-1CSXRDBosch1.5 tons · 18,000 Btu/h · DuctlessTop 10%2.31
  7. 257BZ33-HP183Z2-454-G3-PBreeze331.5 tons · 18,000 Btu/h · DuctlessTop 10%2.31
  8. 2584C25MC318H21CanAir1.5 tons · 18,000 Btu/h · DuctlessTop 10%2.31
  9. 25937MGRAQ18CA3Carrier (sold as Bryant)1.5 tons · 18,000 Btu/h · DuctlessTop 10%2.31
  10. 260D5CMRAH18CAKCarrier (sold as Arcoaire)1.5 tons · 18,000 Btu/h · DuctlessTop 10%2.31
  11. 261CH-R18MES-230VOCooper&Hunter1.5 tons · 18,000 Btu/h · DuctlessTop 10%2.31
  12. 262CCOESBMZ318HPCustom Comfort1.5 tons · 18,000 Btu/h · DuctlessTop 10%2.31
  13. 263DIRM4-18DA25-2ZDIRECT AIR1.5 tons · 18,000 Btu/h · DuctlessTop 10%2.31
  14. 264DIRM4-18DA25-3ZDIRECT AIR1.5 tons · 18,000 Btu/h · DuctlessTop 10%2.31
  15. 265EDMO-18EECO-AIR1.5 tons · 18,000 Btu/h · DuctlessTop 10%2.31
  16. 266EDMO-18E-3GXECO-AIR (sold as Eco Air)1.5 tons · 18,000 Btu/h · DuctlessTop 10%2.31
  17. 267MHPC-H-018BMBGree (sold as Ac Pro)1.5 tons · 18,000 Btu/h · DuctlessTop 10%2.31
  18. 268PAS-12BUFASDQ1with ductless indoor unit PCIM-B12UFA1DQHITACHI1 ton · 12,000 Btu/h · DuctlessTop 10%2.31
  19. 269MOM18H2BM3AInnovair1.5 tons · 18,000 Btu/h · DuctlessTop 10%2.31
  20. 270KOB-PS218HP-2AAMAKaden1.5 tons · 18,000 Btu/h · DuctlessTop 10%2.31
  21. 271KOB-PS318HP-2AAMAKaden1.5 tons · 18,000 Btu/h · DuctlessTop 10%2.31
  22. 272D5CMRAH18CAKLPS Legacy1.5 tons · 18,000 Btu/h · DuctlessTop 10%2.31
  23. 27337MGRAQ18CA3Midea1.5 tons · 18,000 Btu/h · DuctlessTop 10%2.31
  24. 274D5CMRAH18CAKMidea1.5 tons · 18,000 Btu/h · DuctlessTop 10%2.31
  25. 275M3OX430-18HFN10-M1Midea (sold as MDV)1.5 tons · 18,000 Btu/h · DuctlessTop 10%2.31

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