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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%

Top cold-climate picks, ducted 2.5–3 tons

Only units that keep at least 70% of their heat at 5°F, ranked on heat kept, efficiency at 5°F and seasonal efficiency (HSPF2), against units their size.

Showing Ducted, 2.5–3 tons (27,000–38,999 Btu/h cooling). What size is my system?

CLASSIC

  1. 1GMRSHC36AS4CLASSIC3 tons · 36,000 Btu/h · DuctedKeeps 92% of its heat at 5°FMeets CEE 2025, CEE 2026, Xcel CC, ENERGY STAR CC
    Heat kept at 5°F
    92% (Capacity at 5°F vs 47°F)
    Great
    Efficiency at 5°F
    1.90 (COP at 5°F)
    Below the middle
    Seasonal efficiency
    8.1 (HSPF2)
    Below the middle
    52.2score / 100
  2. 2TMRHC36AS4CLASSIC3 tons · 36,000 Btu/h · DuctedKeeps 71% of its heat at 5°FMeets CEE 2025, CEE 2026, Xcel CC
    Heat kept at 5°F
    71% (Capacity at 5°F vs 47°F)
    Good
    Efficiency at 5°F
    1.80 (COP at 5°F)
    Below the middle
    Seasonal efficiency
    9.0 (HSPF2)
    Good
    47.5score / 100

DAIZUKI

No ducted, 2.5–3 tons 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