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Viessmann vs WHIRLPOOL: heat pump ratings compared

Against heat pumps of the same size and type, a typical Viessmann model beats 60% and a typical WHIRLPOOL model 26%. Viessmann rates higher overall.

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

Viessmann

60%

of similar heat pumps beaten by its typical model

Well above average

43 models listed

WHIRLPOOL

26%

of similar heat pumps beaten by its typical model

Well below average

42 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°FViessmann: Beats 53%WHIRLPOOL: Beats 41%
  • Heating power kept at 5°FCapacity at 5°F vs 47°FViessmann: Beats 72%WHIRLPOOL: Beats 21%
  • Winter-long heating efficiencyHSPF2Viessmann: Beats 74%WHIRLPOOL: Beats 17%
  • Summer-long cooling efficiencySEER2Viessmann: Beats 59%WHIRLPOOL: Beats 17%
  • Hot-day cooling efficiencyEER2Viessmann: Beats 49%WHIRLPOOL: Beats 33%

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

    Viessmann
    84%
    WHIRLPOOL
    2%

  • Xcel CC

    Viessmann
    79%
    WHIRLPOOL
    5%

  • CEE Advanced

    Viessmann
    5%
    WHIRLPOOL
    0%

  • ENERGY STAR CC

    Viessmann
    70%
    WHIRLPOOL
    0%

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?

Viessmann

  1. 1D5CSHAH24AAKwith ducted air handler D5FSDAH24XHKViessmann2 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
    19.2 (SEER2)
    Great
    Hot-day cooling
    12.0 (EER2)
    Good
    80.0score / 100Heating 86 · Cooling 74
  2. 2D5CMHAH24DAKViessmann2 tons · 24,000 Btu/h · DuctedCold-climate pick, score 68.1Meets CEE 2025, CEE 2026, Xcel CC, ENERGY STAR CC
    Heat kept at 5°F
    100% (Capacity at 5°F vs 47°F)
    Top 10%
    Efficiency at 5°F
    1.90 (COP at 5°F)
    Below the middle
    Winter efficiency
    9.5 (HSPF2)
    Good
    Cooling efficiency
    20.0 (SEER2)
    Great
    Hot-day cooling
    13.0 (EER2)
    Top 10%
    79.3score / 100Heating 68 · Cooling 91
  3. 3D5CUHAH24AAKwith ducted air handler D5FUHAH24XAKViessmann2 tons · 24,000 Btu/h · DuctedCold-climate pick, score 75.8Meets CEE 2025, CEE 2026, Xcel CC, ENERGY STAR CC
    Heat kept at 5°F
    86% (Capacity at 5°F vs 47°F)
    Good
    Efficiency at 5°F
    2.14 (COP at 5°F)
    Good
    Winter efficiency
    10.0 (HSPF2)
    Great
    Cooling efficiency
    18.7 (SEER2)
    Good
    Hot-day cooling
    12.0 (EER2)
    Good
    71.9score / 100Heating 76 · Cooling 68

WHIRLPOOL

  1. 1WLP15AY30AJ2Nwith ducted air handler AE*S+DM36A3J+TDRWHIRLPOOL2 tons · 26,800 Btu/h · DuctedCold-climate pick, score 75.4Meets Xcel CC
    Heat kept at 5°F
    127% (Capacity at 5°F vs 47°F)
    Top 10%
    Efficiency at 5°F
    2.72 (COP at 5°F)
    Top 10%
    Winter efficiency
    7.8 (HSPF2)
    Below the middle
    Cooling efficiency
    15.2 (SEER2)
    Below the middle
    Hot-day cooling
    11.7 (EER2)
    Below the middle
    56.7score / 100Heating 75 · Cooling 38
  2. 2WLP15AY24AJ2Nwith ducted air handler WLH2TY2417STANNWHIRLPOOL2 tons · 22,800 Btu/h · DuctedNot a cold-climate pick: keeps 48% of its heat at 5°FMeets none of the standards tracked here
    Heat kept at 5°F
    48% (Capacity at 5°F vs 47°F)
    Below the middle
    Efficiency at 5°F
    2.00 (COP at 5°F)
    Good
    Winter efficiency
    7.8 (HSPF2)
    Below the middle
    Cooling efficiency
    15.2 (SEER2)
    Below the middle
    Hot-day cooling
    11.7 (EER2)
    Below the middle
    34.9score / 100Heating 32 · Cooling 38
  3. 3WLP14AY24AJ2Nwith indoor coil TCFY2417STANM and furnace WL921T0703A17M4WHIRLPOOL2 tons · 22,800 Btu/h · DuctedNot a cold-climate pick: keeps 46% of its heat at 5°FMeets none of the standards tracked here
    Heat kept at 5°F
    46% (Capacity at 5°F vs 47°F)
    Below the middle
    Efficiency at 5°F
    1.90 (COP at 5°F)
    Below the middle
    Winter efficiency
    7.5 (HSPF2)
    Below the middle
    Cooling efficiency
    14.8 (SEER2)
    Below the middle
    Hot-day cooling
    10.5 (EER2)
    Below the middle
    20.8score / 100Heating 24 · Cooling 18

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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