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Ranked by heat output at 5°f only

How much heat the unit can deliver when it is 5°F outside, in Btu per hour. Useful for comparing units. Whether it is enough for a particular house takes a load calculation. 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

Top 10 by heat output at 5°f 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. 1AC024DXSCCGwith ductless indoor unit AC024DNHDCGSamsung2 tons · 23,000 Btu/h · DuctlessTop 10%54,000 Btu/h
  2. 2MMLD024S6S-1Pwith ductless indoor unit MDDD024S6-1PLennox2 tons · 23,000 Btu/h · DuctlessTop 10%54,000 Btu/h
  3. 3AOUH24KUAH1with ductless indoor unit ABUH24KUASFujitsu2 tons · 24,000 Btu/h · DuctlessTop 10%29,000 Btu/h
  4. 4KUSXA241Awith ductless indoor unit KNSCB241ALG2 tons · 24,000 Btu/h · DuctlessTop 10%28,000 Btu/h
  5. 5YPAS24BLFASDQ1with ductless indoor unit YPCIB24UFA1DQYork2 tons · 24,000 Btu/h · DuctlessTop 10%27,600 Btu/h
  6. 6ZRUN024GSS0LG2 tons · 24,000 Btu/h · DuctlessTop 10%27,000 Btu/h
  7. 7YRACXJ24WHAAwith ductless indoor unit YRAKXJ24PHAAYork2 tons · 24,000 Btu/h · DuctlessTop 10%27,000 Btu/h
  8. 8YRACXJ24WHBAwith ductless indoor unit YRAKXJ24PHBAYork2 tons · 22,000 Btu/h · DuctlessTop 10%27,000 Btu/h
  9. 9AOUK024SSAN7Fujitsu2 tons · 24,000 Btu/h · DuctlessTop 10%26,700 Btu/h
  10. 10AM3-H24/2DR3BAUXAlso listed as ASUM24HPMULO2 tons · 24,000 Btu/h · DuctlessTop 10%26,000 Btu/h

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.
  • 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+
  • SEER2

    Summer-long cooling efficiency

    Cooling efficiency over a whole summer, measured with a federal test.

    Good
    21.0+
    Great
    22.8+
    Top 10%
    23.5+

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