Skip to content
Rebate.Blue

ApooDr vs Viessmann: heat pump ratings compared

Against heat pumps of the same size and type, a typical ApooDr model beats 58% and a typical Viessmann model 60%. Viessmann rates slightly higher overall.

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

ApooDr

58%

of similar heat pumps beaten by its typical model

Above average

44 models listed

Viessmann

60%

of similar heat pumps beaten by its typical model

Well above average

43 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°FApooDr: Beats 64%Viessmann: Beats 53%
  • Heating power kept at 5°FCapacity at 5°F vs 47°FApooDr: Beats 45%Viessmann: Beats 72%
  • Winter-long heating efficiencyHSPF2ApooDr: Beats 65%Viessmann: Beats 74%
  • Summer-long cooling efficiencySEER2ApooDr: Beats 64%Viessmann: Beats 59%
  • Hot-day cooling efficiencyEER2ApooDr: Beats 53%Viessmann: Beats 49%

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

    ApooDr
    91%
    Viessmann
    84%

  • Xcel CC

    ApooDr
    75%
    Viessmann
    79%

  • CEE Advanced

    ApooDr
    0%
    Viessmann
    5%

  • ENERGY STAR CC

    ApooDr
    77%
    Viessmann
    70%

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?

ApooDr

  1. 1ALC24-24H1Bwith ducted air handler DIU-24HWFN10ApooDr2 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
  2. 2AHU3G-24HFN-Bwith ducted air handler AHU3G-24HFN-AApooDr2 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
    18.6 (SEER2)
    Good
    Hot-day cooling
    12.0 (EER2)
    Good
    71.7score / 100Heating 76 · Cooling 68
  3. 3AM4OJ-27HFN1ApooDr2 tons · 26,600 Btu/h · DuctedCold-climate pick, score 48.6Meets CEE 2025, CEE 2026, Xcel CC, ENERGY STAR CC
    Heat kept at 5°F
    71% (Capacity at 5°F vs 47°F)
    Below the middle
    Efficiency at 5°F
    2.00 (COP at 5°F)
    Good
    Winter efficiency
    9.0 (HSPF2)
    Good
    Cooling efficiency
    21.0 (SEER2)
    Top 10%
    Hot-day cooling
    12.0 (EER2)
    Good
    64.5score / 100Heating 49 · Cooling 81

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

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