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Fujitsu heat pumps: how do their ratings compare?

A typical Fujitsu heat pump beats 53% of similar heat pumps (same size and type), which is about average. Fujitsu has 179 heat pump models in this list.

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

Overall score

53%

of similar heat pumps beaten by its typical model

About average

Ranked 16 among brands with a QMID on file. Based on 152 models with every rating.

Fujitsu, rating by ratingStrongest on efficiency on a 5°f day (beats 60%), weakest on summer-long cooling efficiency (beats 43%).
  • Efficiency on a 5°F dayCOP at 5°FBeats 60%
  • Heating power kept at 5°FCapacity at 5°F vs 47°FBeats 48%
  • Winter-long heating efficiencyHSPF2Beats 44%
  • Summer-long cooling efficiencySEER2Beats 43%
  • Hot-day cooling efficiencyEER2Beats 47%

Average (50%)

Each bar: the share of similar heat pumps a typical model beats on that rating.

Want Fujitsu’s ranks and its models inside every size class? Switch to Advanced

Rebate standards

Share of this brand’s models that meet the efficiency levels rebate programs use. Programs can have other rules too.

  • 32%

    meet CEE 2025 Tier 1, the level many utility rebates use.

    58 models. All brands: 57%.

    See them

  • 30%

    meet Xcel Energy Colorado’s cold-climate rebate levels.

    53 models. All brands: 53%.

    See them

  • 8%

    reach the cold-climate tier: full heating output and a COP of 2.1 or more at 5°F.

    14 models. All brands: 3%.

    See them

Top Fujitsu cold-climate picks, by size

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?

7 of Fujitsu’s 8 models of this size and type qualify.

  1. 1AOUH42KUAH1with ductless indoor unit AUUH42KUASFujitsu3.5 tons · 42,000 Btu/h · DuctlessKeeps 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
    2.02 (COP at 5°F)
    Good
    Seasonal efficiency
    10.6 (HSPF2)
    Good
    76.7score / 100
  2. 2AOUH42KUAS1with ductless indoor unit AUUH42KUASFujitsu3.5 tons · 42,000 Btu/h · DuctlessKeeps 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)
    Below the middle
    Efficiency at 5°F
    2.36 (COP at 5°F)
    Top 10%
    Seasonal efficiency
    10.4 (HSPF2)
    Good
    67.1score / 100
  3. 3AOUH48KUAS1with ductless indoor unit AUUH48KUASFujitsu4 tons · 46,000 Btu/h · DuctlessKeeps 75% of its heat at 5°FMeets CEE 2025, CEE 2026, Xcel CC, ENERGY STAR CC
    Heat kept at 5°F
    75% (Capacity at 5°F vs 47°F)
    Below the middle
    Efficiency at 5°F
    2.34 (COP at 5°F)
    Top 10%
    Seasonal efficiency
    10.2 (HSPF2)
    Good
    62.5score / 100
  4. 4AOUH45KWBS5Fujitsu3.5 tons · 43,000 Btu/h · DuctlessKeeps 80% of its heat at 5°FMeets CEE 2025, CEE 2026, Xcel CC, ENERGY STAR CC
    Heat kept at 5°F
    80% (Capacity at 5°F vs 47°F)
    Below the middle
    Efficiency at 5°F
    2.14 (COP at 5°F)
    Top 10%
    Seasonal efficiency
    10.0 (HSPF2)
    Below the middle
    60.0score / 100
  5. 5AOUH48KUAH1with ductless indoor unit AUUH48KUASFujitsu4 tons · 46,000 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
    1.92 (COP at 5°F)
    Below the middle
    Seasonal efficiency
    10.5 (HSPF2)
    Good
    59.9score / 100

These are certified test ratings, not a recommendation for your home. The right size comes from a load calculation by a contractor.

What to do next

The advanced view has Fujitsu’s ranks on each rating, its models inside every size and type, cold-weather curves and its newest certifications.

Open the advanced view