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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. 2826LMSHP-18BT/R32/17SRwith ductless indoor unit LMSHP-18BT/R32/17SRLEVIOR1.5 tons · 17,000 Btu/h · DuctlessBelow the middle1.80
  2. 2827KUSAB181Awith ductless indoor unit KNUAB181ALG1.5 tons · 18,000 Btu/h · DuctlessBelow the middle1.80
  3. 2828KUSAC091Awith ductless indoor unit KNSAC091ALG1 ton · 9,000 Btu/h · DuctlessBelow the middle1.80
  4. 2829KUSAC091Bwith ductless indoor unit KNSAC091BLG1 ton · 9,000 Btu/h · DuctlessBelow the middle1.80
  5. 2830KUSAC121Awith ductless indoor unit KNSAC121ALG1 ton · 11,000 Btu/h · DuctlessBelow the middle1.80
  6. 2831KUSAC121Bwith ductless indoor unit KNSAC121BLG1 ton · 11,000 Btu/h · DuctlessBelow the middle1.80
  7. 2832KUSAC181Awith ductless indoor unit KNSAC181ALG1.5 tons · 18,000 Btu/h · DuctlessBelow the middle1.80
  8. 2833KUSAD091Awith ductless indoor unit KNSAD091ALG1 ton · 9,000 Btu/h · DuctlessBelow the middle1.80
  9. 2834KUSAD091Bwith ductless indoor unit KNSAD091BLG1 ton · 9,000 Btu/h · DuctlessBelow the middle1.80
  10. 2835KUSAD091Cwith ductless indoor unit KNSAD091CLG1 ton · 9,000 Btu/h · DuctlessBelow the middle1.80
  11. 2836KUSAD091Dwith ductless indoor unit KNSAD091DLG1 ton · 9,000 Btu/h · DuctlessBelow the middle1.80
  12. 2837KUSAD121Awith ductless indoor unit KNSAD121ALG1 ton · 11,000 Btu/h · DuctlessBelow the middle1.80
  13. 2838KUSAD121Bwith ductless indoor unit KNSAD121BLG1 ton · 11,000 Btu/h · DuctlessBelow the middle1.80
  14. 2839KUSAD121Cwith ductless indoor unit KNSAD121CLG1 ton · 11,000 Btu/h · DuctlessBelow the middle1.80
  15. 2840KUSAD121Dwith ductless indoor unit KNSAD121DLG1 ton · 11,000 Btu/h · DuctlessBelow the middle1.80
  16. 2841KUSAD181Awith ductless indoor unit KNSAD181ALG1.5 tons · 18,000 Btu/h · DuctlessBelow the middle1.80
  17. 2842KUSAD181Cwith ductless indoor unit KNSAD181CLG1.5 tons · 18,000 Btu/h · DuctlessBelow the middle1.80
  18. 2843KUSAH091Bwith ductless indoor unit KNSAH091BLG1 ton · 9,000 Btu/h · DuctlessBelow the middle1.80
  19. 2844KUSAH121Awith ductless indoor unit KNSAH121ALG1 ton · 11,000 Btu/h · DuctlessBelow the middle1.80
  20. 2845KUSAH121Bwith ductless indoor unit KNSAH121BLG1 ton · 11,000 Btu/h · DuctlessBelow the middle1.80
  21. 2846KUSAH181Awith ductless indoor unit KNSAH181ALG1.5 tons · 18,000 Btu/h · DuctlessBelow the middle1.80
  22. 2847KWSM-18IR454BHS23Rwith ductless indoor unit LWSM-18IR454BHS23RLive cool1.5 tons · 18,000 Btu/h · DuctlessBelow the middle1.80
  23. 2848LWSM-18IR454BHS23Rwith ductless indoor unit LWSM-18IR454BHS23RLive cool1.5 tons · 18,000 Btu/h · DuctlessBelow the middle1.80
  24. 2849D5CERAH12AAKwith ductless indoor unit D5FEHAH12XCKLPS Legacy1 ton · 12,000 Btu/h · DuctlessBelow the middle1.80
  25. 2850L01-09K1V-20S-P-Owith ductless indoor unit L01-09K1V-20S-WC-ILUORISE1 ton · 9,000 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