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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. 35137MAHAQ18AA3with ducted air handler 45MBAAQ18XB3Carrier1.5 tons · 18,000 Btu/h · DuctedGreat2.20
  2. 352D5CSHAH18AAKwith ducted air handler D5FSAAH18XBKCarrier (sold as Arcoaire)1.5 tons · 18,000 Btu/h · DuctedGreat2.20
  3. 353A-VHP18SA-1with ducted air handler B-VHP18AA-1Century1.5 tons · 18,000 Btu/h · DuctedGreat2.20
  4. 354CHF3-18CD(O)with ducted air handler AHU3-18MCOMFORTSTAR1.5 tons · 18,000 Btu/h · DuctedGreat2.20
  5. 355CH-RHP18-230VOwith ducted air handler CH-RS18MAHUCooper&Hunter1.5 tons · 18,000 Btu/h · DuctedGreat2.20
  6. 356CCOXHBSZ17HPwith ducted air handler CCOXHBAHU18Custom Comfort1.5 tons · 18,000 Btu/h · DuctedGreat2.20
  7. 357DRA1H18S2Awith ducted air handler DRAM18F2ADurastar1.5 tons · 18,000 Btu/h · DuctedGreat2.20
  8. 358PAS-09BUFASDQ1with ductless indoor unit PPFC-B09UFA1DQHITACHI1 ton · 9,000 Btu/h · DuctlessGreat2.20
  9. 359MOM18H2XE2AInnovair1.5 tons · 18,000 Btu/h · DuctlessGreat2.20
  10. 360MOS18H2BH0Awith ducted air handler MAH18H2MHWAInnovair1.5 tons · 18,000 Btu/h · DuctedGreat2.20
  11. 361A-KHP18SA-1with ducted air handler B-KHP18AA-1Kerr1.5 tons · 18,000 Btu/h · DuctedGreat2.20
  12. 362A-VHP18SA-1with ducted air handler B-VHP18AA-1Lennox (sold as Comfort-Aire)1.5 tons · 18,000 Btu/h · DuctedGreat2.20
  13. 363D5CSHAH18AAKwith ducted air handler D5FSAAH18XBKLPS Legacy1.5 tons · 18,000 Btu/h · DuctedGreat2.20
  14. 36437MAHAQ18AA3with ducted air handler 45MBAAQ18XB3Midea1.5 tons · 18,000 Btu/h · DuctedGreat2.20
  15. 365D5CSHAH18AAKwith ducted air handler D5FSAAH18XBKMidea1.5 tons · 18,000 Btu/h · DuctedGreat2.20
  16. 366M2OX330-18HFN8-M1Midea (sold as MDV)1.5 tons · 18,000 Btu/h · DuctedGreat2.20
  17. 367MO1HS-H18B-2Awith ducted air handler MACHU-H18B-2AMidea1.5 tons · 18,000 Btu/h · DuctedGreat2.20
  18. 368MOX430-18HFN10-M1Xwith ducted air handler MVBC-18HWFN10-MB1Midea (sold as MDV)1.5 tons · 18,000 Btu/h · DuctedGreat2.20
  19. 369PUZ-AK18NL***with ductless indoor unit PLA-AE18NLMitsubishi Electric1.5 tons · 18,000 Btu/h · DuctlessGreat2.20
  20. 370PUZ-AK18NL2***with ductless indoor unit PLA-AE18NLMitsubishi Electric1.5 tons · 18,000 Btu/h · DuctlessGreat2.20
  21. 371RUZ-AH18NL***with ducted air handler RVZ-AP18NLMitsubishi Electric1.5 tons · 17,100 Btu/h · DuctedGreat2.20
  22. 372HO-SZ18-LA-Qwith ducted air handler HV-UZ18-LA-QMitsutomo1.5 tons · 18,000 Btu/h · DuctedGreat2.20
  23. 373ML18HP230NEXH-Owith ducted air handler ML18HP230AHU-IRheem (sold as Mainline)1.5 tons · 18,000 Btu/h · DuctedGreat2.20
  24. 374HSZ18H525ZMOwith ducted air handler AH18H525ZMISEA BREEZE+1.5 tons · 18,000 Btu/h · DuctedGreat2.20
  25. 375D5CSHAH18AAKwith ducted air handler D5FSAAH18XBKViessmann1.5 tons · 18,000 Btu/h · DuctedGreat2.20

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