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TCL vs Viessmann: heat pump ratings compared

Against heat pumps of the same size and type, a typical TCL model beats 49% and a typical Viessmann model 60%. Viessmann rates higher overall.

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

TCL

49%

of similar heat pumps beaten by its typical model

About average

177 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°FTCL: Beats 36%Viessmann: Beats 53%
  • Heating power kept at 5°FCapacity at 5°F vs 47°FTCL: Beats 50%Viessmann: Beats 72%
  • Winter-long heating efficiencyHSPF2TCL: Beats 52%Viessmann: Beats 74%
  • Summer-long cooling efficiencySEER2TCL: Beats 59%Viessmann: Beats 59%
  • Hot-day cooling efficiencyEER2TCL: Beats 41%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

    TCL
    76%
    Viessmann
    84%

  • Xcel CC

    TCL
    72%
    Viessmann
    79%

  • CEE Advanced

    TCL
    0%
    Viessmann
    5%

  • ENERGY STAR CC

    TCL
    64%
    Viessmann
    70%

Top cold-climate picks, ducted up to 1.5 tons

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?

TCL

  1. 1H18TDHXPCwith ducted air handler H18FAHUDETCL1.5 tons · 18,000 Btu/h · DuctedKeeps 100% of its heat at 5°FMeets 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
    Seasonal efficiency
    9.5 (HSPF2)
    Good
    67.5score / 100
  2. 2TSH09HEI2NAO0T24*with ducted air handler TDH09IEI2NAD24TCL1 ton · 9,500 Btu/h · DuctedKeeps 78% of its heat at 5°FMeets CEE 2025, CEE 2026, Xcel CC, ENERGY STAR CC
    Heat kept at 5°F
    78% (Capacity at 5°F vs 47°F)
    Good
    Efficiency at 5°F
    1.85 (COP at 5°F)
    Below the middle
    Seasonal efficiency
    10.0 (HSPF2)
    Great
    59.0score / 100
  3. 3TMH18HEI2NAO0U24TCLAlso listed as H18FMH22XPC1.5 tons · 17,000 Btu/h · DuctedKeeps 84% of its heat at 5°FMeets CEE 2025, CEE 2026, Xcel CC, ENERGY STAR CC
    Heat kept at 5°F
    84% (Capacity at 5°F vs 47°F)
    Good
    Efficiency at 5°F
    1.90 (COP at 5°F)
    Below the middle
    Seasonal efficiency
    9.5 (HSPF2)
    Good
    57.7score / 100

Viessmann

  1. 1D5CUHAH18AAKwith ducted air handler D5MUWAQ18XA3Viessmann1.5 tons · 18,000 Btu/h · DuctedKeeps 103% of its heat at 5°FMeets CEE 2025, CEE 2026, CEE Advanced, Xcel CC, DOE CCHP, ENERGY STAR CC
    Heat kept at 5°F
    103% (Capacity at 5°F vs 47°F)
    Top 10%
    Efficiency at 5°F
    2.10 (COP at 5°F)
    Good
    Seasonal efficiency
    10.8 (HSPF2)
    Top 10%
    86.7score / 100
  2. 2D5CSHAH18AAKwith ducted air handler D5FSDAH18XHKViessmann1.5 tons · 17,500 Btu/h · DuctedKeeps 92% of its heat at 5°FMeets 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
    2.10 (COP at 5°F)
    Good
    Seasonal efficiency
    11.1 (HSPF2)
    Top 10%
    82.3score / 100
  3. 3D5CSHAH09AAKwith ducted air handler D5FSDAH12XAKViessmann1 ton · 9,000 Btu/h · DuctedKeeps 112% of its heat at 5°FMeets CEE 2025, CEE 2026, Xcel CC, ENERGY STAR CC
    Heat kept at 5°F
    112% (Capacity at 5°F vs 47°F)
    Top 10%
    Efficiency at 5°F
    1.89 (COP at 5°F)
    Below the middle
    Seasonal efficiency
    12.5 (HSPF2)
    Top 10%
    80.0score / 100

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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