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

Records: ductless, up to 1.5 tons

Showing Ductless, Up to 1.5 tons (under 21,000 Btu/h cooling). What size is my system?

  • Efficiency on a 5°F day

    2.93

    COP at 5°F

    SUZ-AA09NL***Mitsubishi Electric

    1 ton · 9,000 Btu/h · Ductless

  • Heating power kept at 5°F

    150%

    Capacity at 5°F vs 47°F

    37MPRAQ06AA3CarrierAlso sold as Midea 37MPRAQ06AA3, MDV MOX430-06HFN10-M1H

    0.5 tons · 6,000 Btu/h · Ductless

  • Winter-long heating efficiency

    15.6

    HSPF2

    37MPRAQ06AA3CarrierAlso sold as Midea 37MPRAQ06AA3, MDV MOX430-06HFN10-M1H

    0.5 tons · 6,000 Btu/h · Ductless

  • Summer-long cooling efficiency

    35.1

    SEER2

    37MPRAQ06AA3CarrierAlso sold as Midea 37MPRAQ06AA3, MDV MOX430-06HFN10-M1H

    0.5 tons · 6,000 Btu/h · Ductless

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

    Heating power kept at 5°F: its typical model beats 65% of similar heat pumps, against 49% 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