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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. 226ASG24-18H1Bwith ductless indoor unit ASG24-18H1AAprodr1.5 tons · 18,000 Btu/h · DuctlessTop 10%2.35
  2. 227CDHAS22B-18-Owith ductless indoor unit CDHAS22B-18-ICONTINENTAL1.5 tons · 18,000 Btu/h · DuctlessTop 10%2.35
  3. 228CDHAS22BA-18-Owith ductless indoor unit CDHAS22BB-18-ICONTINENTAL1.5 tons · 18,000 Btu/h · DuctlessTop 10%2.35
  4. 229CH-RES18-230VOwith ductless indoor unit CH-R18MOLVWM-230VICooper&Hunter1.5 tons · 18,000 Btu/h · DuctlessTop 10%2.35
  5. 230OMSTAR181Ewith ductless indoor unit IMSTAR181ENG Trade1.5 tons · 18,000 Btu/h · DuctlessTop 10%2.35
  6. 231LEA18SZ26-Owith ductless indoor unit 3LEA18USK-INOVAIR1.5 tons · 18,000 Btu/h · DuctlessTop 10%2.35
  7. 232ZMSB-18HV-USHHR2-Owith ductless indoor unit ZMSB-18HV-USHHR2-IZERO1.5 tons · 18,000 Btu/h · DuctlessTop 10%2.35
  8. 233AO35-18N2-M1Hwith ductless indoor unit AW35-18N2-M1AI AIR CONDITIONING1.5 tons · 18,000 Btu/h · DuctlessTop 10%2.34
  9. 234UE-SH18S1Pwith ductless indoor unit UI-SH18MS1PAIR C1.5 tons · 18,000 Btu/h · DuctlessTop 10%2.34
  10. 235BMS1826SHYCwith ductless indoor unit BMS1826SHYWBlueRidge1.5 tons · 18,000 Btu/h · DuctlessTop 10%2.34
  11. 236BXS6A18UC0with ductless indoor unit BXS6A18WM0BlueRidge1.5 tons · 18,000 Btu/h · DuctlessTop 10%2.34
  12. 2374C35SCH18H21with ductless indoor unit 4C35SEH18H21CanAir1.5 tons · 18,000 Btu/h · DuctlessTop 10%2.34
  13. 23837MPRAQ18AA3with ductless indoor unit 45MPHAQ18XA3Carrier1.5 tons · 18,000 Btu/h · DuctlessTop 10%2.34
  14. 239D5CPRAH18AAwith ductless indoor unit D5FPHAH18XAKCarrier (sold as Arcoaire)1.5 tons · 18,000 Btu/h · DuctlessTop 10%2.34
  15. 240CDHAS26B-24-Owith ductless indoor unit CDHAS26B-24-ICONTINENTAL1.5 tons · 18,000 Btu/h · DuctlessTop 10%2.34
  16. 241KEENHYMHP18AAwith ductless indoor unit KEENHYMAH18AAKEEN Home1.5 tons · 18,000 Btu/h · DuctlessTop 10%2.34
  17. 242A-KZP18SA-1with ductless indoor unit B-KZP18SA-1Kerr Kapstone1.5 tons · 18,000 Btu/h · DuctlessTop 10%2.34
  18. 243A-KZP18SA-1with ductless indoor unit B-ZKP18SA-1Kerr1.5 tons · 18,000 Btu/h · DuctlessTop 10%2.34
  19. 244A-ZKP18SA-1with ductless indoor unit B-ZKP18SA-1Kerr1.5 tons · 18,000 Btu/h · DuctlessTop 10%2.34
  20. 245A-ZHP18SA-1with ductless indoor unit B-ZHP18SA-1Lennox (sold as Comfort-Aire)1.5 tons · 18,000 Btu/h · DuctlessTop 10%2.34
  21. 246D5CPRAH18AAwith ductless indoor unit D5FPHAH18XAKLPS Legacy1.5 tons · 18,000 Btu/h · DuctlessTop 10%2.34
  22. 24737MPRAQ18AA3with ductless indoor unit D5MPHAQ18XA3Midea1.5 tons · 18,000 Btu/h · DuctlessTop 10%2.34
  23. 248D5CPRAH18AAwith ductless indoor unit D5FPHAH18XAKMidea1.5 tons · 18,000 Btu/h · DuctlessTop 10%2.34
  24. 249MO1SS-H18B-2Awith ductless indoor unit MSESU-H18B-2AMidea1.5 tons · 18,000 Btu/h · DuctlessTop 10%2.34
  25. 250MOD30-18HFN10-M1Hwith ductless indoor unit MSEPD-18HRFN10-M1HMidea (sold as MDV)1.5 tons · 18,000 Btu/h · DuctlessTop 10%2.34

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