Viessmann heat pumps: how do their ratings compare?
A typical Viessmann heat pump beats 60% of similar heat pumps (same size and type), which is well above average. Viessmann has 43 heat pump models in this list.
Covers heat pumps sold new today (R-454B and R-32 refrigerant). See older R-410A models · Updated
Overall score
60%
of similar heat pumps beaten by its typical model
Well above averageViessmann has no QMID (the manufacturer ID the 25C tax credit needs) on file, so it is not ranked against other brands. Based on 59 models with every rating.
- Efficiency on a 5°F dayCOP at 5°FBeats 53%
- Heating power kept at 5°FCapacity at 5°F vs 47°FBeats 72%
- Winter-long heating efficiencyHSPF2Beats 74%
- Summer-long cooling efficiencySEER2Beats 59%
- Hot-day cooling efficiencyEER2Beats 49%
Average (50%)
Each bar: the share of similar heat pumps a typical model beats on that rating.
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Rebate standards
84%
meet CEE 2025 Tier 1, the level many utility rebates use.
36 models. All brands: 57%.
79%
meet Xcel Energy Colorado’s cold-climate rebate levels.
34 models. All brands: 53%.
5%
reach the cold-climate tier: full heating output and a COP of 2.1 or more at 5°F.
2 models. All brands: 3%.
Viessmann all-around best, by size
Balances heating (5°F output and efficiency, HSPF2) and cooling (SEER2, EER2), each rating against units their size.
Showing Ducted, 2.5–3 tons (27,000–38,999 Btu/h cooling). What size is my system?
16 of Viessmann’s 16 models of this size and type have all five ratings.
- 1D5CMHAH30EAKViessmann2.5 tons · 30,000 Btu/h · DuctedCold-climate pick, score 78.5Meets CEE 2025, CEE 2026, Xcel CC, ENERGY STAR CC
- Heat kept at 5°F
- 116% (Capacity at 5°F vs 47°F)
- Top 10%
- Efficiency at 5°F
- 1.95 (COP at 5°F)
- Below the middle
- Winter efficiency
- 10.5 (HSPF2)
- Top 10%
- Cooling efficiency
- 19.5 (SEER2)
- Top 10%
- Hot-day cooling
- 12.5 (EER2)
- Top 10%
- 2D5CMHAH36EAKViessmann3 tons · 36,000 Btu/h · DuctedCold-climate pick, score 83.2Meets CEE 2025, CEE 2026, Xcel CC, ENERGY STAR CC
- Heat kept at 5°F
- 106% (Capacity at 5°F vs 47°F)
- Top 10%
- Efficiency at 5°F
- 2.00 (COP at 5°F)
- Good
- Winter efficiency
- 10.5 (HSPF2)
- Top 10%
- Cooling efficiency
- 19.5 (SEER2)
- Top 10%
- Hot-day cooling
- 12.0 (EER2)
- Great
- 3D5CLHAH36AAKwith ducted air handler D5FLDAH36XHKViessmann3 tons · 36,000 Btu/h · DuctedCold-climate pick, score 83.2Meets 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
- 2.10 (COP at 5°F)
- Great
- Winter efficiency
- 11.1 (HSPF2)
- Top 10%
- Cooling efficiency
- 17.8 (SEER2)
- Good
- Hot-day cooling
- 12.0 (EER2)
- Great
- 4D5CUHAH30AAKwith ducted air handler D5FUHAH36XAKViessmann2.5 tons · 30,000 Btu/h · DuctedCold-climate pick, score 78.4Meets CEE 2025, CEE 2026, Xcel CC, ENERGY STAR CC
- Heat kept at 5°F
- 101% (Capacity at 5°F vs 47°F)
- Top 10%
- Efficiency at 5°F
- 1.97 (COP at 5°F)
- Below the middle
- Winter efficiency
- 10.8 (HSPF2)
- Top 10%
- Cooling efficiency
- 17.2 (SEER2)
- Good
- Hot-day cooling
- 12.1 (EER2)
- Great
- 5D5CUHAH36AAKwith ducted air handler D5FUHAH36XAKViessmann3 tons · 36,000 Btu/h · DuctedCold-climate pick, score 73.1Meets CEE 2025, CEE 2026, Xcel CC, ENERGY STAR CC
- Heat kept at 5°F
- 101% (Capacity at 5°F vs 47°F)
- Top 10%
- Efficiency at 5°F
- 1.90 (COP at 5°F)
- Below the middle
- Winter efficiency
- 10.0 (HSPF2)
- Great
- Cooling efficiency
- 18.0 (SEER2)
- Good
- Hot-day cooling
- 12.0 (EER2)
- Great
These are certified test ratings, not a recommendation for your home. The right size comes from a load calculation by a contractor.
What to do next
The advanced view has Viessmann’s ranks on each rating, its models inside every size and type, cold-weather curves and its newest certifications.
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