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Ranked by efficiency on a 5°f day only

How much heat the unit makes from each unit of electricity when it is 5°F outside. An electric baseboard heater has a COP of 1, so a COP of 2 means twice the heat from the same electricity in the 5°F test. This list ranks by that one rating. For the units that hold up best in the cold overall, see the cold-climate picks.

Covers heat pumps sold new today (R-454B and R-32 refrigerant). See older R-410A models · Updated

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

Top 10 by efficiency on a 5°f day only: ductless, 2 tons

Ranked by this one rating, not an overall verdict. Every model here is the same size and type, so the numbers compare directly. Higher is better. One certified pairing per model.
  1. 1AOUK024SSAN7Fujitsu2 tons · 24,000 Btu/h · DuctlessTop 10%3.03
  2. 2BMS500-AAS024-1CSXRDwith ductless indoor unit BMS500-AAU024-1AHWXDBosch2 tons · 24,000 Btu/h · DuctlessTop 10%2.54
  3. 337MARAQ24AA3with ductless indoor unit 45MAHAQ24XA3CarrierAlso sold as Midea 37MARAQ24AA3, Midea D5CSRAH24AAK, MDV MOD30-24HFN10-M1, Arcoaire D5CSRAH24AAK2 tons · 24,000 Btu/h · DuctlessTop 10%2.54
  4. 4MO1ES-H24B-2Awith ductless indoor unit MSEHU-H24B-2AMideaAlso listed as MOD-24HFN10AE, MOD30-24HFN10-M1P2 tons · 24,000 Btu/h · DuctlessTop 10%2.54
  5. 5MOS24H2BM0Awith ductless indoor unit MHW24H2BHRBInnovair2 tons · 24,000 Btu/h · DuctlessTop 10%2.54
  6. 6BMS2423YCwith ductless indoor unit BMC24HHYWBlueRidgeAlso listed as BXS3A24SC02 tons · 24,000 Btu/h · DuctlessTop 10%2.54
  7. 7CH-RES24-230VOwith ductless indoor unit CH-PRO24MASTWM-230VICooper&Hunter2 tons · 24,000 Btu/h · DuctlessTop 10%2.54
  8. 8MHPC-H-024BSBwith ductless indoor unit MWAL-H-024BBBGree (sold as Ac Pro)2 tons · 24,000 Btu/h · DuctlessTop 10%2.54
  9. 9KUMXB241ALG2 tons · 24,000 Btu/h · DuctlessTop 10%2.51
  10. 10YPAS24BUFASDQ1with ductless indoor unit YPCIB24UFA1DQYork2 tons · 22,000 Btu/h · DuctlessTop 10%2.50

Every ductless, 2 tons model, highest first

Top cold-climate picks, ductless 2 tons

These are certified test ratings, not a recommendation for your home. The right size comes from a load calculation by a contractor.

Want this size class’s full distribution and peer percentiles? Switch to Advanced

What good looks like: ductless, 2 tons

Good is better than half of this size class, great is the top quarter, top is the top 10%. The scale comes from the class’s own ratings.

  • Capacity at 5°F vs 47°F

    Heating power kept at 5°F

    How much of its mild-weather heating power the unit still delivers at 5°F.

    Good
    74%+
    Great
    83%+
    Top 10%
    95%+

  • COP at 5°F

    Efficiency on a 5°F day

    How much heat the unit makes from each unit of electricity when it is 5°F outside.

    Good
    2.00+
    Great
    2.11+
    Top 10%
    2.30+

  • HSPF2

    Winter-long heating efficiency

    Heating efficiency over a whole winter, measured with a federal test.

    Good
    9.5+
    Great
    10.0+
    Top 10%
    11.0+

Next steps

The advanced view adds the all-sizes boards, each qualifier’s peer percentiles, charts of every model in each size class, and the EER2 and heat output boards.

Open the advanced view