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AAON vs Panasonic: heat pump ratings compared

Against heat pumps of the same size and type, a typical AAON model beats 34% and a typical Panasonic model 68%. Panasonic rates higher overall.

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

AAON

34%

of similar heat pumps beaten by its typical model

Well below average

28 models listed

Panasonic

68%

of similar heat pumps beaten by its typical model

Well above average

29 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°FAAON: Beats 16%Panasonic: Beats 64%
  • Heating power kept at 5°FCapacity at 5°F vs 47°FAAON: Beats 21%Panasonic: Beats 72%
  • Winter-long heating efficiencyHSPF2AAON: Beats 34%Panasonic: Beats 80%
  • Summer-long cooling efficiencySEER2AAON: Beats 45%Panasonic: Beats 66%
  • Hot-day cooling efficiencyEER2AAON: Beats 83%Panasonic: Beats 62%

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

    AAON
    0%
    Panasonic
    97%

  • Xcel CC

    AAON
    0%
    Panasonic
    90%

  • CEE Advanced

    AAON
    0%
    Panasonic
    21%

  • ENERGY STAR CC

    AAON
    0%
    Panasonic
    79%

Top cold-climate picks, ducted 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 Ducted, 3.5–4.5 tons (39,000–56,999 Btu/h cooling). What size is my system?

AAON

None of AAON’s ducted, 3.5–4.5 tons models qualifies.

Panasonic

  1. 1CU-6YM48CBUCPanasonic4 tons · 47,000 Btu/h · DuctedKeeps 100% of its heat at 5°FMeets CEE 2025, CEE 2026, Xcel CC
    Heat kept at 5°F
    100% (Capacity at 5°F vs 47°F)
    Top 10%
    Efficiency at 5°F
    2.00 (COP at 5°F)
    Good
    Seasonal efficiency
    11.0 (HSPF2)
    Top 10%
    82.7score / 100
  2. 2CU-HM48BAHUwith ducted air handler CS-HM48BAHUPanasonic4 tons · 48,000 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
    1.90 (COP at 5°F)
    Below the middle
    Seasonal efficiency
    9.5 (HSPF2)
    Great
    68.8score / 100
  3. 3CU-HM55BAHUwith ducted air handler CS-HM60BAHUPanasonic4.5 tons · 54,000 Btu/h · DuctedKeeps 93% of its heat at 5°FMeets CEE 2025, CEE 2026, Xcel CC, ENERGY STAR CC
    Heat kept at 5°F
    93% (Capacity at 5°F vs 47°F)
    Great
    Efficiency at 5°F
    1.80 (COP at 5°F)
    Below the middle
    Seasonal efficiency
    9.0 (HSPF2)
    Good
    60.5score / 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