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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, ductless up to 1.5 tons

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

Showing Ductless, Up to 1.5 tons (under 21,000 Btu/h cooling). What size is my system?

WILLIS

  1. 1AUHW09KR32-Owith ductless indoor unit AUHW09KR32-IWILLIS1 ton · 9,100 Btu/h · DuctlessCold-climate pick, score 87.2Meets CEE 2025, CEE 2026, CEE Advanced, Xcel CC, DOE CCHP, ENERGY STAR CC
    Heat kept at 5°F
    108% (Capacity at 5°F vs 47°F)
    Top 10%
    Efficiency at 5°F
    2.11 (COP at 5°F)
    Great
    Winter efficiency
    11.2 (HSPF2)
    Great
    Cooling efficiency
    30.0 (SEER2)
    Top 10%
    Hot-day cooling
    16.8 (EER2)
    Top 10%
    92.6score / 100Heating 87 · Cooling 98
  2. 2AUHW12KR32-Owith ductless indoor unit AUHW12KR32-IWILLIS1 ton · 12,000 Btu/h · DuctlessCold-climate pick, score 72.1Meets CEE 2025, CEE 2026, Xcel CC, ENERGY STAR CC
    Heat kept at 5°F
    100% (Capacity at 5°F vs 47°F)
    Great
    Efficiency at 5°F
    2.00 (COP at 5°F)
    Good
    Winter efficiency
    10.0 (HSPF2)
    Good
    Cooling efficiency
    29.5 (SEER2)
    Top 10%
    Hot-day cooling
    15.2 (EER2)
    Top 10%
    84.3score / 100Heating 72 · Cooling 97
  3. 3PUHW09KR32-Owith ductless indoor unit PUHW09KR32-IWILLIS1 ton · 9,100 Btu/h · DuctlessCold-climate pick, score 62.2Meets CEE 2025, CEE 2026, Xcel CC, ENERGY STAR CC
    Heat kept at 5°F
    90% (Capacity at 5°F vs 47°F)
    Good
    Efficiency at 5°F
    1.88 (COP at 5°F)
    Below the middle
    Winter efficiency
    10.4 (HSPF2)
    Great
    Cooling efficiency
    26.0 (SEER2)
    Top 10%
    Hot-day cooling
    15.0 (EER2)
    Top 10%
    78.0score / 100Heating 62 · Cooling 94

YITAHOME

  1. 1IMHCAC-0032YITAHOME1.5 tons · 17,700 Btu/h · DuctlessCold-climate pick, score 62.5Meets CEE 2025, CEE 2026, Xcel CC
    Heat kept at 5°F
    79% (Capacity at 5°F vs 47°F)
    Good
    Efficiency at 5°F
    2.00 (COP at 5°F)
    Good
    Winter efficiency
    10.0 (HSPF2)
    Good
    Cooling efficiency
    22.0 (SEER2)
    Good
    Hot-day cooling
    12.3 (EER2)
    Good
    58.7score / 100Heating 63 · Cooling 55
  2. 2IMHCAC-0024with ductless indoor unit IMHCAC-0023YITAHOMEAlso listed as IMHCAC-0025, IMHCAC-00261 ton · 12,000 Btu/h · DuctlessNot a cold-climate pick: keeps 66% of its heat at 5°FMeets CEE 2025, CEE 2026
    Heat kept at 5°F
    67% (Capacity at 5°F vs 47°F)
    Below the middle
    Efficiency at 5°F
    2.15 (COP at 5°F)
    Great
    Winter efficiency
    10.0 (HSPF2)
    Good
    Cooling efficiency
    21.0 (SEER2)
    Below the middle
    Hot-day cooling
    12.0 (EER2)
    Below the middle
    49.2score / 100Heating 54 · Cooling 44
  3. 3IMHCAC-0010with ductless indoor unit IMHCAC-0009YITAHOMEAlso listed as IMHCAC-00121.5 tons · 17,000 Btu/h · DuctlessNot a cold-climate pick: keeps 65% of its heat at 5°FMeets CEE 2025, CEE 2026
    Heat kept at 5°F
    66% (Capacity at 5°F vs 47°F)
    Below the middle
    Efficiency at 5°F
    2.17 (COP at 5°F)
    Great
    Winter efficiency
    9.0 (HSPF2)
    Below the middle
    Cooling efficiency
    21.0 (SEER2)
    Below the middle
    Hot-day cooling
    12.0 (EER2)
    Below the middle
    43.2score / 100Heating 42 · Cooling 44

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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