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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, 2 tons: every model, highest efficiency on a 5°f day first

One size class at a time, so the numbers compare directly.

Showing Ductless, 2 tons (21,000–26,999 Btu/h cooling). What size is my system?

  1. 726KWSM-24IR32HS17Pwith ductless indoor unit KWSM-24IR32HS17PKANIONco2 tons · 23,000 Btu/h · DuctlessBelow the middle1.80
  2. 727KWSM-24IR454BHS22.5R*with ductless indoor unit KWSM-24IR454BHS22.5RKANIONco2 tons · 24,000 Btu/h · DuctlessBelow the middle1.80
  3. 728KWSM-24IR454BHS23Rwith ductless indoor unit KWSM-24IR454BHS23RKANIONco2 tons · 23,000 Btu/h · DuctlessBelow the middle1.80
  4. 729KOIE24H2-31Xwith ductless indoor unit KIWE24H2-31XKLIMAIRE2 tons · 23,000 Btu/h · DuctlessBelow the middle1.80
  5. 730KOIQ24H2-45Twith ductless indoor unit KIWQ24H2-45TKLIMAIRE2 tons · 23,000 Btu/h · DuctlessBelow the middle1.80
  6. 731MMLD024S6S-1Pwith ductless indoor unit M33D024S6-1PLennox2 tons · 24,000 Btu/h · DuctlessBelow the middle1.80
  7. 732MMPD024S6S-1Pwith ductless indoor unit M33D024S6-1PLennox2 tons · 24,000 Btu/h · DuctlessBelow the middle1.80
  8. 733VPC024H5M-3PLennox2 tons · 22,000 Btu/h · DuctlessBelow the middle1.80
  9. 734VPC024H5M-3P*Lennox2 tons · 22,000 Btu/h · DuctlessBelow the middle1.80
  10. 735LEO12K30S25V220H1with ductless indoor unit LEO12K30S25V220H1LEO AIR2 tons · 23,000 Btu/h · DuctlessBelow the middle1.80
  11. 736LEO18K30S25V220H1with ductless indoor unit LEO18K30S25V220H1LEO AIR2 tons · 23,000 Btu/h · DuctlessBelow the middle1.80
  12. 737LEO24K30S24V220H1with ductless indoor unit LEO24K30S24V220H1LEO AIR2 tons · 23,000 Btu/h · DuctlessBelow the middle1.80
  13. 738LEO24K30S24V220H2with ductless indoor unit LEO24K30S24V220H2LEO AIR2 tons · 23,000 Btu/h · DuctlessBelow the middle1.80
  14. 739LEO24K30S25V220H1with ductless indoor unit LEO24K30S25V220H1LEO AIR2 tons · 23,000 Btu/h · DuctlessBelow the middle1.80
  15. 740LEO24K30S25V220H1*with ductless indoor unit LEO24K30S25V220H1LEO AIR2 tons · 24,000 Btu/h · DuctlessBelow the middle1.80
  16. 741LEO9K30S25V220H1with ductless indoor unit LEO9K30S25V220H1LEO AIR2 tons · 23,000 Btu/h · DuctlessBelow the middle1.80
  17. 742LMSHP-24BT/R32/17SRwith ductless indoor unit LMSHP-24BT/R32/17SRLEVIOR2 tons · 23,000 Btu/h · DuctlessBelow the middle1.80
  18. 743KUSAC241Awith ductless indoor unit KNSAC241ALG2 tons · 21,200 Btu/h · DuctlessBelow the middle1.80
  19. 744KUSAD241Awith ductless indoor unit KNSAD241ALG2 tons · 21,200 Btu/h · DuctlessBelow the middle1.80
  20. 745KUSAD241Cwith ductless indoor unit KNSAD241CLG2 tons · 21,200 Btu/h · DuctlessBelow the middle1.80
  21. 746KUSAH241Awith ductless indoor unit KNSAH241ALG2 tons · 21,200 Btu/h · DuctlessBelow the middle1.80
  22. 747KUSAP241Awith ductless indoor unit KNSAP241ALG2 tons · 22,000 Btu/h · DuctlessBelow the middle1.80
  23. 748KWSM-24IR454BHS23Rwith ductless indoor unit LWSM-24IR454BHS23RLive cool2 tons · 23,000 Btu/h · DuctlessBelow the middle1.80
  24. 749LWSM-24IR454BHS23Rwith ductless indoor unit LWSM-24IR454BHS23RLive cool2 tons · 23,000 Btu/h · DuctlessBelow the middle1.80
  25. 750L01-24K2V-20S-P-Owith ductless indoor unit L01-24K2V-20S-WC-ILUORISE2 tons · 24,000 Btu/h · DuctlessBelow the middle1.80

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