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ACIQ vs Fujitsu: heat pump ratings compared

Against heat pumps of the same size and type, a typical ACIQ 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

ACIQ

50%

of similar heat pumps beaten by its typical model

About average

175 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°FACIQ: Beats 55%Fujitsu: Beats 60%
  • Heating power kept at 5°FCapacity at 5°F vs 47°FACIQ: Beats 43%Fujitsu: Beats 48%
  • Winter-long heating efficiencyHSPF2ACIQ: Beats 52%Fujitsu: Beats 44%
  • Summer-long cooling efficiencySEER2ACIQ: Beats 49%Fujitsu: Beats 43%
  • Hot-day cooling efficiencyEER2ACIQ: Beats 52%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

    ACIQ
    55%
    Fujitsu
    32%

  • Xcel CC

    ACIQ
    46%
    Fujitsu
    30%

  • CEE Advanced

    ACIQ
    2%
    Fujitsu
    8%

  • ENERGY STAR CC

    ACIQ
    34%
    Fujitsu
    27%

All-around best, ductless up to 1.5 tons

Balances heating (5°F output and efficiency, HSPF2) and cooling (SEER2, EER2), each rating against units their size.

Showing Ductless, Up to 1.5 tons (under 21,000 Btu/h cooling). What size is my system?

ACIQ

  1. 1ACIQ-06ZPL-HP230Cwith ductless indoor unit ACIQ-06W-HH-MDACIQ0.5 tons · 6,000 Btu/h · DuctlessCold-climate pick, score 96.7Meets CEE 2025, CEE 2026, CEE Advanced, Xcel CC, DOE CCHP, ENERGY STAR CC
    Heat kept at 5°F
    110% (Capacity at 5°F vs 47°F)
    Top 10%
    Efficiency at 5°F
    2.40 (COP at 5°F)
    Top 10%
    Winter efficiency
    14.8 (HSPF2)
    Top 10%
    Cooling efficiency
    25.5 (SEER2)
    Top 10%
    Hot-day cooling
    18.0 (EER2)
    Top 10%
    96.2score / 100Heating 97 · Cooling 96
  2. 2ACIQ-09ZS-HP230Cwith ductless indoor unit ACIQ-09FM-HH-MDACIQ1 ton · 9,000 Btu/h · DuctlessCold-climate pick, score 89.5Meets CEE 2025, CEE 2026, Xcel CC, ENERGY STAR CC
    Heat kept at 5°F
    96% (Capacity at 5°F vs 47°F)
    Great
    Efficiency at 5°F
    2.27 (COP at 5°F)
    Top 10%
    Winter efficiency
    13.9 (HSPF2)
    Top 10%
    Cooling efficiency
    26.0 (SEER2)
    Top 10%
    Hot-day cooling
    16.2 (EER2)
    Top 10%
    92.6score / 100Heating 90 · Cooling 96
  3. 3ACIQ-09ZPL-HP230Cwith ductless indoor unit ACIQ-09FM-HH-MDACIQ1 ton · 9,000 Btu/h · DuctlessCold-climate pick, score 73.3Meets CEE 2025, CEE 2026, Xcel CC, ENERGY STAR CC
    Heat kept at 5°F
    126% (Capacity at 5°F vs 47°F)
    Top 10%
    Efficiency at 5°F
    1.84 (COP at 5°F)
    Below the middle
    Winter efficiency
    10.9 (HSPF2)
    Great
    Cooling efficiency
    27.2 (SEER2)
    Top 10%
    Hot-day cooling
    15.1 (EER2)
    Top 10%
    83.6score / 100Heating 72 · Cooling 96

Fujitsu

  1. 1AOUH09KTAP1with ductless indoor unit ASUH09KTASFujitsu1 ton · 9,000 Btu/h · DuctlessCold-climate pick, score 98.5Meets CEE 2025, CEE 2026, CEE Advanced, Xcel CC, DOE CCHP, ENERGY STAR CC
    Heat kept at 5°F
    142% (Capacity at 5°F vs 47°F)
    Top 10%
    Efficiency at 5°F
    2.48 (COP at 5°F)
    Top 10%
    Winter efficiency
    14.0 (HSPF2)
    Top 10%
    Cooling efficiency
    33.5 (SEER2)
    Top 10%
    Hot-day cooling
    19.1 (EER2)
    Top 10%
    99.1score / 100Heating 99 · Cooling 100
  2. 2AOUH09KZAH1with ductless indoor unit ASUH09KZASFujitsu1 ton · 9,000 Btu/h · DuctlessCold-climate pick, score 95.8Meets CEE 2025, CEE 2026, CEE Advanced, Xcel CC, DOE CCHP, ENERGY STAR CC
    Heat kept at 5°F
    128% (Capacity at 5°F vs 47°F)
    Top 10%
    Efficiency at 5°F
    2.26 (COP at 5°F)
    Top 10%
    Winter efficiency
    13.3 (HSPF2)
    Top 10%
    Cooling efficiency
    33.1 (SEER2)
    Top 10%
    Hot-day cooling
    18.8 (EER2)
    Top 10%
    97.6score / 100Heating 96 · Cooling 99
  3. 3AOUH12KTAP1with ductless indoor unit ASUH12KTABFujitsu1 ton · 12,000 Btu/h · DuctlessCold-climate pick, score 96.6Meets CEE 2025, CEE 2026, CEE Advanced, Xcel CC, DOE CCHP, ENERGY STAR CC
    Heat kept at 5°F
    106% (Capacity at 5°F vs 47°F)
    Top 10%
    Efficiency at 5°F
    2.62 (COP at 5°F)
    Top 10%
    Winter efficiency
    13.7 (HSPF2)
    Top 10%
    Cooling efficiency
    31.5 (SEER2)
    Top 10%
    Hot-day cooling
    16.7 (EER2)
    Top 10%
    97.3score / 100Heating 97 · Cooling 98

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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