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Record holders, size class by size class

The highest certified value on each single rating, in each size class. A record is one rating, not an overall verdict; for that, see the cold-climate picks. A record across all sizes would mostly go to the smallest units, so each record here is for one size and type.

Covers older R-410A heat pumps, no longer installed new. See models sold today · Updated

Records: ducted, 2 tons

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

  • Efficiency on a 5°F day

    3.59

    COP at 5°F

    ARUN024GSS4LG

    2 tons · 24,000 Btu/h · Ducted

  • Heating power kept at 5°F

    147%

    Capacity at 5°F vs 47°F

    38MURAQ24AB3*Carrier (sold as Bryant Heating and Cooling Systems)

    2 tons · 25,200 Btu/h · Ducted

  • Winter-long heating efficiency

    11.2

    HSPF2

    MOD33-24HFN1-MT0WMidea (sold as MDV)

    2 tons · 23,000 Btu/h · Ducted

  • Summer-long cooling efficiency

    23.2

    SEER2

    SL25XPV-024-230A**Lennox

    2 tons · 22,800 Btu/h · Ducted

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

Smaller brands worth a look

Brands with fewer than 25 models whose typical model beats more similar heat pumps than the 5 largest brands’ typical model, on at least one rating.

  • Ecoer

    Efficiency on a 5°F day: its typical model beats 74% of similar heat pumps, against 54% for the 5 largest brands.

Next steps

The advanced view has the all-sizes records with runners-up, the best of every size class in one table and the full list of smaller brands.

Open the advanced view