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Panasonic vs Wells: heat pump ratings compared

Against heat pumps of the same size and type, a typical Panasonic model beats 68% and a typical Wells model 63%. Panasonic rates slightly higher overall.

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

Panasonic

68%

of similar heat pumps beaten by its typical model

Well above average

29 models listed

Wells

63%

of similar heat pumps beaten by its typical model

Well above average

37 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°FPanasonic: Beats 64%Wells: Beats 64%
  • Heating power kept at 5°FCapacity at 5°F vs 47°FPanasonic: Beats 72%Wells: Beats 61%
  • Winter-long heating efficiencyHSPF2Panasonic: Beats 80%Wells: Beats 74%
  • Summer-long cooling efficiencySEER2Panasonic: Beats 66%Wells: Beats 62%
  • Hot-day cooling efficiencyEER2Panasonic: Beats 62%Wells: Beats 59%

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

    Panasonic
    97%
    Wells
    87%

  • Xcel CC

    Panasonic
    90%
    Wells
    81%

  • CEE Advanced

    Panasonic
    21%
    Wells
    3%

  • ENERGY STAR CC

    Panasonic
    79%
    Wells
    84%

Top cold-climate picks, ducted 2 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, 2 tons (21,000–26,999 Btu/h cooling). What size is my system?

Panasonic

  1. 1CU-YM24CBUCwith ducted air handler CS-YM24CD1UWPanasonic2 tons · 24,000 Btu/h · DuctedKeeps 76% of its heat at 5°FMeets 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
    Seasonal efficiency
    11.0 (HSPF2)
    Top 10%
    77.1score / 100
  2. 2CU-HM24BAHUwith ducted air handler CS-HM24BAHUPanasonic2 tons · 23,000 Btu/h · DuctedKeeps 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)
    Great
    Efficiency at 5°F
    1.87 (COP at 5°F)
    Below the middle
    Seasonal efficiency
    10.0 (HSPF2)
    Great
    66.3score / 100
  3. 3CU-M24BAHUwith ducted air handler CS-HM24BAHUPanasonic2 tons · 24,000 Btu/h · DuctedKeeps 83% of its heat at 5°FMeets CEE 2025, CEE 2026, Xcel CC, ENERGY STAR CC
    Heat kept at 5°F
    83% (Capacity at 5°F vs 47°F)
    Good
    Efficiency at 5°F
    1.87 (COP at 5°F)
    Below the middle
    Seasonal efficiency
    9.7 (HSPF2)
    Great
    59.7score / 100

Wells

  1. 1WOS-24PRE/230with ducted air handler WIDH-24MOC/230Wells2 tons · 24,000 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
    2.18 (COP at 5°F)
    Good
    Seasonal efficiency
    11.7 (HSPF2)
    Top 10%
    85.7score / 100
  2. 2WOS-24QUA/230with ducted air handler WIDH-24MOC/230Wells2 tons · 24,000 Btu/h · DuctedKeeps 76% of its heat at 5°FMeets 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
    Seasonal efficiency
    11.0 (HSPF2)
    Top 10%
    77.1score / 100
  3. 3WDHP-2436T-Gwith ducted air handler WDAH-24MOC-GWells2 tons · 24,000 Btu/h · DuctedKeeps 83% of its heat at 5°FMeets CEE 2025, CEE 2026, Xcel CC, ENERGY STAR CC
    Heat kept at 5°F
    83% (Capacity at 5°F vs 47°F)
    Good
    Efficiency at 5°F
    2.10 (COP at 5°F)
    Good
    Seasonal efficiency
    9.4 (HSPF2)
    Good
    67.2score / 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.

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