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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 47% and a typical Wells model 57%. Wells rates higher overall.

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

Panasonic

47%

of similar heat pumps beaten by its typical model

About average

36 models listed

Wells

57%

of similar heat pumps beaten by its typical model

Above average

35 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 40%Wells: Beats 40%
  • Heating power kept at 5°FCapacity at 5°F vs 47°FPanasonic: Beats 50%Wells: Beats 60%
  • Winter-long heating efficiencyHSPF2Panasonic: Beats 57%Wells: Beats 70%
  • Summer-long cooling efficiencySEER2Panasonic: Beats 48%Wells: Beats 65%
  • Hot-day cooling efficiencyEER2Panasonic: Beats 39%Wells: Beats 50%

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
    53%
    Wells
    74%

  • Xcel CC

    Panasonic
    36%
    Wells
    60%

  • CEE Advanced

    Panasonic
    0%
    Wells
    0%

  • ENERGY STAR CC

    Panasonic
    36%
    Wells
    60%

Top cold-climate picks, ductless 2.5–3 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, 2.5–3 tons (27,000–38,999 Btu/h cooling). What size is my system?

Panasonic

None of Panasonic’s ductless, 2.5–3 tons models qualifies.

Wells

  1. 1WMCA-36HFMOWells3 tons · 36,000 Btu/h · DuctlessKeeps 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
    1.95 (COP at 5°F)
    Good
    Seasonal efficiency
    10.9 (HSPF2)
    Top 10%
    87.0score / 100
  2. 2WMCA-27HFMOWells2.5 tons · 27,000 Btu/h · DuctlessKeeps 101% of its heat at 5°FMeets 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)
    Good
    Seasonal efficiency
    9.8 (HSPF2)
    Good
    77.3score / 100
  3. 3WSA-33HFMOwith ductless indoor unit WSA-33HFMIWells3 tons · 33,000 Btu/h · DuctlessKeeps 99% of its heat at 5°FMeets CEE 2025, CEE 2026, Xcel CC, ENERGY STAR CC
    Heat kept at 5°F
    99% (Capacity at 5°F vs 47°F)
    Great
    Efficiency at 5°F
    1.80 (COP at 5°F)
    Below the middle
    Seasonal efficiency
    10.0 (HSPF2)
    Great
    61.9score / 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