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DAIZUKI vs Wells: heat pump ratings compared

Against heat pumps of the same size and type, a typical DAIZUKI model beats 47% and a typical Wells model 63%. Wells rates higher overall.

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

DAIZUKI

47%

of similar heat pumps beaten by its typical model

About average

12 models listed

Wells

63%

of similar heat pumps beaten by its typical model

Well above average

37 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°FDAIZUKI: Beats 39%Wells: Beats 64%
  • Heating power kept at 5°FCapacity at 5°F vs 47°FDAIZUKI: Beats 41%Wells: Beats 61%
  • Winter-long heating efficiencyHSPF2DAIZUKI: Beats 47%Wells: Beats 74%
  • Summer-long cooling efficiencySEER2DAIZUKI: Beats 61%Wells: Beats 62%
  • Hot-day cooling efficiencyEER2DAIZUKI: Beats 44%Wells: Beats 59%

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

    DAIZUKI
    92%
    Wells
    87%

  • Xcel CC

    DAIZUKI
    75%
    Wells
    81%

  • CEE Advanced

    DAIZUKI
    0%
    Wells
    3%

  • ENERGY STAR CC

    DAIZUKI
    0%
    Wells
    84%

All-around best, ducted 2 tons

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

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

DAIZUKI

No ducted, 2 tons model from DAIZUKI.

Wells

  1. 1WDHP-2436T-Gwith ducted air handler WDAH-24MOC-GWells2 tons · 24,000 Btu/h · DuctedCold-climate pick, score 67.2Meets CEE 2025, CEE 2026, Xcel CC, ENERGY STAR CC
    Heat kept at 5°F
    83% (Capacity at 5°F vs 47°F)
    Good
    Efficiency at 5°F
    2.10 (COP at 5°F)
    Good
    Winter efficiency
    9.4 (HSPF2)
    Good
    Cooling efficiency
    20.0 (SEER2)
    Great
    Hot-day cooling
    13.3 (EER2)
    Top 10%
    79.6score / 100Heating 67 · Cooling 92
  2. 2WOS-24QUA/230with ducted air handler WIDH-24MOC/230Wells2 tons · 24,000 Btu/h · DuctedCold-climate pick, score 77.1Meets CEE 2025, CEE 2026, Xcel CC, ENERGY STAR CC
    Heat kept at 5°F
    76% (Capacity at 5°F vs 47°F)
    Good
    Efficiency at 5°F
    2.30 (COP at 5°F)
    Great
    Winter efficiency
    11.0 (HSPF2)
    Top 10%
    Cooling efficiency
    19.0 (SEER2)
    Great
    Hot-day cooling
    12.5 (EER2)
    Great
    78.8score / 100Heating 77 · Cooling 81
  3. 3WOS-24PRE/230with ducted air handler WIDH-24MOC/230Wells2 tons · 24,000 Btu/h · DuctedCold-climate pick, score 85.7Meets 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
    2.18 (COP at 5°F)
    Good
    Winter efficiency
    11.7 (HSPF2)
    Top 10%
    Cooling efficiency
    19.0 (SEER2)
    Great
    Hot-day cooling
    12.0 (EER2)
    Good
    78.4score / 100Heating 86 · Cooling 71

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