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Mitsutomo vs TRUST AIR CONDITIONERS: heat pump ratings compared

Against heat pumps of the same size and type, a typical Mitsutomo model beats 58% and a typical TRUST AIR CONDITIONERS model 61%. TRUST AIR CONDITIONERS rates slightly higher overall.

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

Mitsutomo

58%

of similar heat pumps beaten by its typical model

Above average

56 models listed

TRUST AIR CONDITIONERS

61%

of similar heat pumps beaten by its typical model

Well above average

54 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°FMitsutomo: Beats 61%TRUST AIR CONDITIONERS: Beats 59%
  • Heating power kept at 5°FCapacity at 5°F vs 47°FMitsutomo: Beats 58%TRUST AIR CONDITIONERS: Beats 61%
  • Winter-long heating efficiencyHSPF2Mitsutomo: Beats 69%TRUST AIR CONDITIONERS: Beats 72%
  • Summer-long cooling efficiencySEER2Mitsutomo: Beats 57%TRUST AIR CONDITIONERS: Beats 62%
  • Hot-day cooling efficiencyEER2Mitsutomo: Beats 51%TRUST AIR CONDITIONERS: Beats 54%

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

    Mitsutomo
    82%
    TRUST AIR CONDITIONERS
    93%

  • Xcel CC

    Mitsutomo
    75%
    TRUST AIR CONDITIONERS
    82%

  • CEE Advanced

    Mitsutomo
    4%
    TRUST AIR CONDITIONERS
    2%

  • ENERGY STAR CC

    Mitsutomo
    77%
    TRUST AIR CONDITIONERS
    83%

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?

Mitsutomo

  1. 1HO-SZ06-LA-Qwith ductless indoor unit HW-UZ06-LA-QMitsutomo0.5 tons · 6,000 Btu/h · DuctlessCold-climate pick, score 94.4Meets CEE 2025, CEE 2026, CEE Advanced, Xcel CC, DOE CCHP, ENERGY STAR CC
    Heat kept at 5°F
    107% (Capacity at 5°F vs 47°F)
    Top 10%
    Efficiency at 5°F
    2.29 (COP at 5°F)
    Top 10%
    Winter efficiency
    14.6 (HSPF2)
    Top 10%
    Cooling efficiency
    25.3 (SEER2)
    Top 10%
    Hot-day cooling
    16.0 (EER2)
    Top 10%
    93.8score / 100Heating 94 · Cooling 94
  2. 2RU-SZ09-LA-Qwith ductless indoor unit HL-UZ09-LA-QMitsutomo1 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. 3HO-SZ09-LA-Qwith ductless indoor unit HL-UZ09-LA-QMitsutomo1 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

TRUST AIR CONDITIONERS

  1. 1OUS06H/O6S4Pwith ductless indoor unit IUMW106H/I61PTRUST AIR CONDITIONERS0.5 tons · 6,000 Btu/h · DuctlessCold-climate pick, score 94.4Meets CEE 2025, CEE 2026, CEE Advanced, Xcel CC, DOE CCHP, ENERGY STAR CC
    Heat kept at 5°F
    107% (Capacity at 5°F vs 47°F)
    Top 10%
    Efficiency at 5°F
    2.29 (COP at 5°F)
    Top 10%
    Winter efficiency
    14.6 (HSPF2)
    Top 10%
    Cooling efficiency
    25.3 (SEER2)
    Top 10%
    Hot-day cooling
    16.0 (EER2)
    Top 10%
    93.8score / 100Heating 94 · Cooling 94
  2. 2OUS09H/O6S4Pwith ductless indoor unit IUMW109H/I61PTRUST AIR CONDITIONERS1 ton · 9,000 Btu/h · DuctlessCold-climate pick, score 85.9Meets CEE 2025, CEE 2026, Xcel CC, ENERGY STAR CC
    Heat kept at 5°F
    82% (Capacity at 5°F vs 47°F)
    Good
    Efficiency at 5°F
    2.33 (COP at 5°F)
    Top 10%
    Winter efficiency
    13.0 (HSPF2)
    Top 10%
    Cooling efficiency
    24.6 (SEER2)
    Great
    Hot-day cooling
    14.7 (EER2)
    Top 10%
    86.7score / 100Heating 86 · Cooling 87
  3. 3OAH09H/O6S4Pwith ductless indoor unit IUMW109H/I61PTRUST AIR CONDITIONERS1 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
    96% (Capacity at 5°F vs 47°F)
    Great
    Efficiency at 5°F
    1.80 (COP at 5°F)
    Below the middle
    Winter efficiency
    12.5 (HSPF2)
    Top 10%
    Cooling efficiency
    26.0 (SEER2)
    Top 10%
    Hot-day cooling
    15.0 (EER2)
    Top 10%
    79.5score / 100Heating 65 · Cooling 94

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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