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Viessmann heat pumps: how do their ratings compare?

A typical Viessmann heat pump beats 53% of similar heat pumps (same size and type), which is about average. Viessmann has 53 heat pump models in this list.

Covers older R-410A heat pumps, no longer installed new. See models sold today · Updated

Overall score

53%

of similar heat pumps beaten by its typical model

About average

Viessmann has no QMID (the manufacturer ID the 25C tax credit needs) on file, so it is not ranked against other brands. Based on 67 models with every rating.

Viessmann, rating by ratingStrongest on winter-long heating efficiency (beats 63%), weakest on hot-day cooling efficiency (beats 46%).
  • Efficiency on a 5°F dayCOP at 5°FBeats 52%
  • Heating power kept at 5°FCapacity at 5°F vs 47°FBeats 50%
  • Winter-long heating efficiencyHSPF2Beats 63%
  • Summer-long cooling efficiencySEER2Beats 58%
  • Hot-day cooling efficiencyEER2Beats 46%

Average (50%)

Each bar: the share of similar heat pumps a typical model beats on that rating.

Want Viessmann’s ranks and its models inside every size class? Switch to Advanced

Rebate standards

Share of this brand’s models that meet the efficiency levels rebate programs use. Programs can have other rules too.

  • 64%

    meet CEE 2025 Tier 1, the level many utility rebates use.

    34 models. All brands: 48%.

    See them

  • 43%

    meet Xcel Energy Colorado’s cold-climate rebate levels.

    23 models. All brands: 38%.

    See them

  • 4%

    reach the cold-climate tier: full heating output and a COP of 2.1 or more at 5°F.

    2 models. All brands: 1%.

    See them

Top Viessmann cold-climate picks, by size

Only units that keep at least 70% of their heat at 5°F, ranked on heat kept, efficiency at 5°F and seasonal efficiency (HSPF2), against units their size.

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

5 of Viessmann’s 6 models of this size and type qualify.

  1. 1DLCSRBH18AAKwith ducted air handler DLFSDAH18XHKViessmann1.5 tons · 17,500 Btu/h · DuctedKeeps 95% of its heat at 5°FMeets CEE 2025, CEE 2026, Xcel CC, ENERGY STAR CC
    Heat kept at 5°F
    95% (Capacity at 5°F vs 47°F)
    Good
    Efficiency at 5°F
    2.20 (COP at 5°F)
    Great
    Seasonal efficiency
    10.8 (HSPF2)
    Top 10%
    81.3score / 100
  2. 2DLCSRBH09AAKwith ducted air handler DLFSDAH09XAKViessmann1 ton · 9,000 Btu/h · DuctedKeeps 108% of its heat at 5°FMeets CEE 2025, CEE 2026, Xcel CC, ENERGY STAR CC
    Heat kept at 5°F
    108% (Capacity at 5°F vs 47°F)
    Top 10%
    Efficiency at 5°F
    1.90 (COP at 5°F)
    Below the middle
    Seasonal efficiency
    12.0 (HSPF2)
    Top 10%
    74.9score / 100
  3. 3DLCSRBH12AAKwith ducted air handler DLFSDAH12XAKViessmann1 ton · 12,000 Btu/h · DuctedKeeps 97% of its heat at 5°FMeets CEE 2025, CEE 2026, Xcel CC, ENERGY STAR CC
    Heat kept at 5°F
    97% (Capacity at 5°F vs 47°F)
    Great
    Efficiency at 5°F
    1.96 (COP at 5°F)
    Below the middle
    Seasonal efficiency
    10.0 (HSPF2)
    Great
    65.4score / 100
  4. 4DLCURAH18ABKwith ducted air handler DLFULAH24XBX + CIViessmann1.5 tons · 18,000 Btu/h · DuctedKeeps 79% of its heat at 5°FMeets CEE 2025, CEE 2026, Xcel CC, ENERGY STAR CC
    Heat kept at 5°F
    79% (Capacity at 5°F vs 47°F)
    Good
    Efficiency at 5°F
    2.20 (COP at 5°F)
    Great
    Seasonal efficiency
    9.5 (HSPF2)
    Good
    63.7score / 100
  5. 5DLCMRBH18BAKViessmann1.5 tons · 18,000 Btu/h · DuctedKeeps 70% of its heat at 5°FMeets CEE 2025, CEE 2026, Xcel CC, ENERGY STAR CC
    Heat kept at 5°F
    70% (Capacity at 5°F vs 47°F)
    Below the middle
    Efficiency at 5°F
    2.00 (COP at 5°F)
    Good
    Seasonal efficiency
    9.8 (HSPF2)
    Good
    52.0score / 100

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.

Open the advanced view