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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: ducted, 3.5–4.5 tons

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

  • Efficiency on a 5°F day

    3.17

    COP at 5°F

    KUSXA482ALG

    3.5 tons · 42,500 Btu/h · Ducted

  • Heating power kept at 5°F

    157%

    Capacity at 5°F vs 47°F

    RD18AY60AJVCRheem

    4 tons · 50,500 Btu/h · Ducted

  • Winter-long heating efficiency

    12.5

    HSPF2

    27VNA154A*030*CarrierAlso sold as Bryant Heating and Cooling Systems 291VAN054**AA

    4 tons · 47,500 Btu/h · Ducted

  • Summer-long cooling efficiency

    23.0

    SEER2

    27VNA348A*030*CarrierAlso sold as Bryant Heating and Cooling Systems 293VAN048**AA, HEIL H5H3V48*K*AAA, Comfortmaker C5H3V48*K*AAA, Kenmore (C,H,T)5H3V48*K*AAA and 2 more

    4 tons · 46,500 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

    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