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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, 3.5–4.5 tons: every model, highest efficiency on a 5°f day first

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

Showing Ducted, 3.5–4.5 tons (39,000–56,999 Btu/h cooling). What size is my system?

  1. 1126GLZT7CA4810A*with ducted air handler AMVT60DP1300AJANITROL4 tons · 47,000 Btu/h · DuctedGood2.00
  2. 1127KOB-HH-PS548HP-2AAMAKaden4 tons · 47,000 Btu/h · DuctlessBelow the middle2.00
  3. 1128KOB-HH-PS648HP-2AAMAKaden4 tons · 47,000 Btu/h · DuctlessBelow the middle2.00
  4. 1129KOB-HH-UUX48HP-2AAMAwith ducted air handler KIB-HH-UUX48AH3-2AAMAKaden4 tons · 48,000 Btu/h · DuctedGood2.00
  5. 1130KWSMO-42IR454BHS19KANIONco3.5 tons · 42,000 Btu/h · DuctlessBelow the middle2.00
  6. 1131KEENHYDHP48AAwith ducted air handler KEENULDAH48AAKEEN Home4 tons · 48,000 Btu/h · DuctedGood2.00
  7. 1132KEENHYZHP49AAKEEN Home4 tons · 45,000 Btu/h · DuctlessBelow the middle2.00
  8. 1133A-KHP486A-1Kerr4 tons · 47,000 Btu/h · DuctlessBelow the middle2.00
  9. 1134KMHR648-H224-4KLIMAIRE4 tons · 45,000 Btu/h · DuctlessBelow the middle2.00
  10. 1135GLZS4BA4810A*with ducted air handler AMST48CU1300ALegacy Systems4 tons · 45,500 Btu/h · DuctedGood2.00
  11. 1136GLZS4BA6010A*with ducted air handler AMST60DU1300ALegacy Systems4.5 tons · 56,500 Btu/h · DuctedGood2.00
  12. 1137A-VHP486A-1Lennox (sold as Comfort-Aire)4 tons · 47,000 Btu/h · DuctlessBelow the middle2.00
  13. 1138VPC048H5M-3PLennox4 tons · 48,000 Btu/h · DuctlessBelow the middle2.00
  14. 1139VPC048H5M-3P*Lennox4 tons · 48,000 Btu/h · DuctlessBelow the middle2.00
  15. 1140KUSXE481Awith ducted air handler LKMMA42C2LG3.5 tons · 41,000 Btu/h · DuctedGood2.00
  16. 1141GLZS4BA4810A*with ducted air handler AMST48CU1300ALiberty Heating & Air Conditioning4 tons · 45,500 Btu/h · DuctedGood2.00
  17. 1142GLZS4BA6010A*with ducted air handler AMST60DU1300ALiberty Heating & Air Conditioning4.5 tons · 56,500 Btu/h · DuctedGood2.00
  18. 1143GLZS5BA4810A*with ducted air handler AMST48CU1300ALiberty Heating & Air Conditioning4 tons · 45,500 Btu/h · DuctedGood2.00
  19. 1144GLZT7CA4810A*with ducted air handler AMVT60DP1300ALiberty Heating & Air Conditioning4 tons · 47,000 Btu/h · DuctedGood2.00
  20. 1145D5CLHAH48AAKwith ducted air handler D5FLAAH48XAKLPS Legacy4 tons · 48,000 Btu/h · DuctedGood2.00
  21. 1146D5CMHAH48FAKLPS Legacy4 tons · 47,000 Btu/h · DuctlessBelow the middle2.00
  22. 1147D5CUHAH48AAKwith ducted air handler D5FUHAH60XAKLPS Legacy4 tons · 48,000 Btu/h · DuctedGood2.00
  23. 114837MBHAQ48AA3with ducted air handler 45MBAAQ48XA3Midea4 tons · 48,000 Btu/h · DuctedGood2.00
  24. 114937MGHAQ48FA3Midea4 tons · 47,000 Btu/h · DuctlessBelow the middle2.00
  25. 115037MUHAQ48AA3with ducted air handler 45MUHAQ60XX3Midea4 tons · 48,000 Btu/h · DuctedGood2.00

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