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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, 2 tons

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

  • Efficiency on a 5°F day

    2.54

    COP at 5°F

    BMS500-AAS024-1CSXRDBosch

    2 tons · 24,000 Btu/h · Ductless

  • Heating power kept at 5°F

    123%

    Capacity at 5°F vs 47°F

    YRACXJ24WHBAYork

    2 tons · 22,000 Btu/h · Ductless

  • Winter-long heating efficiency

    13.5

    HSPF2

    BMS500-AAS024-1CSXHDBosch

    2 tons · 24,000 Btu/h · Ductless

  • Summer-long cooling efficiency

    27.0

    SEER2

    GWH24AVEXH-D6DNA1A/OGreeAlso sold as Tosot TW24HAY32A1DO, Kinghome KW24XQ29SDO, Tosot TW24HAY32A1DOC, Tosot TWH24AV29D6DO and 4 more; also listed as SAP24HP230V1R32AO, GWH24AVEXH-D6DNA1B/O, AIRY24HP230V1AO, GS24HP230V1RYO

    2 tons · 22,000 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