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WILLIS vs YITAHOME: heat pump ratings compared

Against heat pumps of the same size and type, a typical WILLIS model beats 63% and a typical YITAHOME model 37%. WILLIS rates higher overall.

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

WILLIS

63%

of similar heat pumps beaten by its typical model

Well above average

29 models listed

YITAHOME

37%

of similar heat pumps beaten by its typical model

Well below average

30 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°FWILLIS: Beats 44%YITAHOME: Beats 64%
  • Heating power kept at 5°FCapacity at 5°F vs 47°FWILLIS: Beats 71%YITAHOME: Beats 15%
  • Winter-long heating efficiencyHSPF2WILLIS: Beats 50%YITAHOME: Beats 27%
  • Summer-long cooling efficiencySEER2WILLIS: Beats 69%YITAHOME: Beats 41%
  • Hot-day cooling efficiencyEER2WILLIS: Beats 72%YITAHOME: Beats 31%

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

    WILLIS
    97%
    YITAHOME
    63%
  • Xcel CC

    WILLIS
    97%
    YITAHOME
    17%
  • CEE Advanced

    WILLIS
    10%
    YITAHOME
    0%
  • ENERGY STAR CC

    WILLIS
    86%
    YITAHOME
    0%

All-around best, ducted up to 1.5 tons

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

WILLIS

  1. 1PUHW09KR32-Owith ducted air handler WHEDT09KWILLIS1 ton · 9,100 Btu/h · DuctedCold-climate pick, score 69.9Meets CEE 2025, CEE 2026, Xcel CC, ENERGY STAR CC
    Heat kept at 5°F
    90% (Capacity at 5°F vs 47°F)
    Great
    Efficiency at 5°F
    2.14 (COP at 5°F)
    Great
    Winter efficiency
    9.2 (HSPF2)
    Good
    Cooling efficiency
    22.0 (SEER2)
    Top 10%
    Hot-day cooling
    14.2 (EER2)
    Top 10%
    83.6score / 100Heating 70 · Cooling 97
  2. 2AUHW18KR32-Owith ducted air handler WHEDT18KWILLIS1.5 tons · 18,000 Btu/h · DuctedCold-climate pick, score 59.4Meets CEE 2025, CEE 2026, Xcel CC
    Heat kept at 5°F
    94% (Capacity at 5°F vs 47°F)
    Great
    Efficiency at 5°F
    1.80 (COP at 5°F)
    Below the middle
    Winter efficiency
    9.4 (HSPF2)
    Good
    Cooling efficiency
    24.5 (SEER2)
    Top 10%
    Hot-day cooling
    14.0 (EER2)
    Top 10%
    78.6score / 100Heating 59 · Cooling 98
  3. 3AUHW09KR32-Owith ducted air handler WHEDT09KWILLIS1 ton · 9,100 Btu/h · DuctedCold-climate pick, score 55.7Meets CEE 2025, CEE 2026, Xcel CC, ENERGY STAR CC
    Heat kept at 5°F
    88% (Capacity at 5°F vs 47°F)
    Good
    Efficiency at 5°F
    1.80 (COP at 5°F)
    Below the middle
    Winter efficiency
    9.5 (HSPF2)
    Good
    Cooling efficiency
    22.3 (SEER2)
    Top 10%
    Hot-day cooling
    14.3 (EER2)
    Top 10%
    77.0score / 100Heating 56 · Cooling 98

YITAHOME

  1. 1YSAA12DN2AU-Wwith ducted air handler YSAA12DN2AU-NYITAHOMEAlso listed as YSAA12DL2AU-W, YSAA12DR2AU-W, YSAA12DH2AU-W, YSAA12DT2AU-W1 ton · 12,000 Btu/h · DuctedNot a cold-climate pick: keeps 54% of its heat at 5°FMeets CEE 2025, CEE 2026
    Heat kept at 5°F
    54% (Capacity at 5°F vs 47°F)
    Below the middle
    Efficiency at 5°F
    2.05 (COP at 5°F)
    Good
    Winter efficiency
    8.5 (HSPF2)
    Below the middle
    Cooling efficiency
    20.0 (SEER2)
    Great
    Hot-day cooling
    11.4 (EER2)
    Below the middle
    47.7score / 100Heating 36 · Cooling 59

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.

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