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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, ductless 3.5–4.5 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 Ductless, 3.5–4.5 tons (39,000–56,999 Btu/h cooling). What size is my system?

TCL

  1. 1TMH48HEI2NAS0U25TCLAlso listed as H48FMHD6XPC4 tons · 48,000 Btu/h · DuctlessKeeps 88% of its heat at 5°FMeets CEE 2025, CEE 2026, Xcel CC, ENERGY STAR CC
    Heat kept at 5°F
    88% (Capacity at 5°F vs 47°F)
    Good
    Efficiency at 5°F
    2.00 (COP at 5°F)
    Below the middle
    Seasonal efficiency
    10.0 (HSPF2)
    Below the middle
    48.1score / 100
  2. 2TMH48HEI2NAS0U25*TCL4 tons · 48,000 Btu/h · DuctlessKeeps 88% of its heat at 5°FMeets CEE 2025, CEE 2026, Xcel CC, ENERGY STAR CC
    Heat kept at 5°F
    88% (Capacity at 5°F vs 47°F)
    Good
    Efficiency at 5°F
    1.97 (COP at 5°F)
    Below the middle
    Seasonal efficiency
    10.0 (HSPF2)
    Below the middle
    42.7score / 100
  3. 3TMH42HDI2NAO0U25*TCLAlso listed as H42FMH22XQC3.5 tons · 42,000 Btu/h · DuctlessKeeps 74% of its heat at 5°FMeets CEE 2025, CEE 2026, Xcel CC, ENERGY STAR CC
    Heat kept at 5°F
    74% (Capacity at 5°F vs 47°F)
    Below the middle
    Efficiency at 5°F
    2.00 (COP at 5°F)
    Below the middle
    Seasonal efficiency
    10.0 (HSPF2)
    Below the middle
    32.7score / 100

Viessmann

  1. 1D5CMHAH48FAKViessmann4 tons · 47,000 Btu/h · DuctlessKeeps 98% of its heat at 5°FMeets CEE 2025, CEE 2026, Xcel CC, ENERGY STAR CC
    Heat kept at 5°F
    98% (Capacity at 5°F vs 47°F)
    Top 10%
    Efficiency at 5°F
    2.00 (COP at 5°F)
    Below the middle
    Seasonal efficiency
    11.2 (HSPF2)
    Top 10%
    75.5score / 100
  2. 2D5CMHAH55FAKViessmann4.5 tons · 52,000 Btu/h · DuctlessKeeps 86% of its heat at 5°FMeets 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
    2.05 (COP at 5°F)
    Good
    Seasonal efficiency
    10.6 (HSPF2)
    Good
    66.0score / 100
  3. 3D5CLHAH48AAKwith ductless indoor unit D5FLCAH48XAKViessmann4 tons · 48,000 Btu/h · DuctlessKeeps 90% of its heat at 5°FMeets 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
    1.96 (COP at 5°F)
    Below the middle
    Seasonal efficiency
    11.0 (HSPF2)
    Top 10%
    60.2score / 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.

Open the advanced view