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CLASSIC vs DAIZUKI: heat pump ratings compared

Against heat pumps of the same size and type, a typical CLASSIC model beats 41% and a typical DAIZUKI model 47%. DAIZUKI rates higher overall.

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

CLASSIC

41%

of similar heat pumps beaten by its typical model

Below average

40 models listed

DAIZUKI

47%

of similar heat pumps beaten by its typical model

About average

12 models listed

Rating by ratingEach bar is the share of same-size, same-type heat pumps that a typical model beats, so the two brands compare fairly even if they make different sizes.
  • Efficiency on a 5°F dayCOP at 5°FCLASSIC: Beats 37%DAIZUKI: Beats 39%
  • Heating power kept at 5°FCapacity at 5°F vs 47°FCLASSIC: Beats 43%DAIZUKI: Beats 41%
  • Winter-long heating efficiencyHSPF2CLASSIC: Beats 37%DAIZUKI: Beats 47%
  • Summer-long cooling efficiencySEER2CLASSIC: Beats 45%DAIZUKI: Beats 61%
  • Hot-day cooling efficiencyEER2CLASSIC: Beats 40%DAIZUKI: Beats 44%

Average (50%)Dashed outline: the other brand, for comparison

Want ranks, distributions per size class and cold-weather curves? Switch to Advanced

Rebate standards

Share of each brand’s models that meet the level. Programs can have other rules too.

  • CEE 2025

    CLASSIC
    65%
    DAIZUKI
    92%

  • Xcel CC

    CLASSIC
    65%
    DAIZUKI
    75%

  • CEE Advanced

    CLASSIC
    3%
    DAIZUKI
    0%

  • ENERGY STAR CC

    CLASSIC
    20%
    DAIZUKI
    0%

All-around best, ducted 5 tons and up

Balances heating (5°F output and efficiency, HSPF2) and cooling (SEER2, EER2), each rating against units their size.

Showing Ducted, 5 tons and up (57,000 Btu/h and up cooling). What size is my system?

CLASSIC

No ducted, 5 tons and up model from CLASSIC.

DAIZUKI

No ducted, 5 tons and up model from DAIZUKI.

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

Next steps

The advanced view adds ranks, both brands’ models inside every size class, standout models per rating and cold-weather curves.

Open the advanced view