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COMFORTSTAR vs Fujitsu: heat pump ratings compared

Against heat pumps of the same size and type, a typical COMFORTSTAR model beats 50% and a typical Fujitsu model 53%. Fujitsu rates slightly higher overall.

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

COMFORTSTAR

50%

of similar heat pumps beaten by its typical model

About average

133 models listed

Fujitsu

53%

of similar heat pumps beaten by its typical model

About average

179 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°FCOMFORTSTAR: Beats 51%Fujitsu: Beats 60%
  • Heating power kept at 5°FCapacity at 5°F vs 47°FCOMFORTSTAR: Beats 48%Fujitsu: Beats 48%
  • Winter-long heating efficiencyHSPF2COMFORTSTAR: Beats 54%Fujitsu: Beats 44%
  • Summer-long cooling efficiencySEER2COMFORTSTAR: Beats 49%Fujitsu: Beats 43%
  • Hot-day cooling efficiencyEER2COMFORTSTAR: Beats 44%Fujitsu: Beats 47%

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

    COMFORTSTAR
    53%
    Fujitsu
    32%

  • Xcel CC

    COMFORTSTAR
    47%
    Fujitsu
    30%

  • CEE Advanced

    COMFORTSTAR
    2%
    Fujitsu
    8%

  • ENERGY STAR CC

    COMFORTSTAR
    30%
    Fujitsu
    27%

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?

COMFORTSTAR

  1. 1CVH3-48-6SHCOMFORTSTAR4 tons · 47,000 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
    2.00 (COP at 5°F)
    Good
    Seasonal efficiency
    11.0 (HSPF2)
    Top 10%
    82.7score / 100
  2. 2CVH3-60-6SHCOMFORTSTAR4.5 tons · 53,000 Btu/h · DuctedKeeps 87% of its heat at 5°FMeets CEE 2025, CEE 2026, Xcel CC, ENERGY STAR CC
    Heat kept at 5°F
    87% (Capacity at 5°F vs 47°F)
    Great
    Efficiency at 5°F
    2.10 (COP at 5°F)
    Good
    Seasonal efficiency
    10.7 (HSPF2)
    Top 10%
    81.2score / 100
  3. 3CHF3-60DU(O)with ducted air handler CPA3H-60DU(I)COMFORTSTAR4.5 tons · 55,000 Btu/h · DuctedKeeps 89% of its heat at 5°FMeets Xcel CC, ENERGY STAR CC
    Heat kept at 5°F
    89% (Capacity at 5°F vs 47°F)
    Great
    Efficiency at 5°F
    2.10 (COP at 5°F)
    Good
    Seasonal efficiency
    10.4 (HSPF2)
    Great
    80.3score / 100

Fujitsu

  1. 1AOUH42KUAS1with ducted air handler ARUH42KUASFujitsu3.5 tons · 42,000 Btu/h · DuctedKeeps 79% of its heat at 5°FMeets CEE 2025, CEE 2026, Xcel CC, ENERGY STAR CC
    Heat kept at 5°F
    79% (Capacity at 5°F vs 47°F)
    Good
    Efficiency at 5°F
    2.23 (COP at 5°F)
    Great
    Seasonal efficiency
    10.2 (HSPF2)
    Great
    79.3score / 100
  2. 2AOUH48KUAS1with ducted air handler AMUH48KUASFujitsu4 tons · 45,500 Btu/h · DuctedKeeps 80% of its heat at 5°FMeets CEE 2025, CEE 2026, ENERGY STAR CC
    Heat kept at 5°F
    80% (Capacity at 5°F vs 47°F)
    Good
    Efficiency at 5°F
    2.24 (COP at 5°F)
    Great
    Seasonal efficiency
    9.6 (HSPF2)
    Great
    78.7score / 100
  3. 3AOUH42KUAH1with ducted air handler ARUH42KUASFujitsu3.5 tons · 42,000 Btu/h · DuctedKeeps 102% of its heat at 5°FMeets CEE 2025, CEE 2026, Xcel CC, ENERGY STAR CC
    Heat kept at 5°F
    102% (Capacity at 5°F vs 47°F)
    Top 10%
    Efficiency at 5°F
    1.98 (COP at 5°F)
    Below the middle
    Seasonal efficiency
    10.2 (HSPF2)
    Great
    78.1score / 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