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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%

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

Mitsutomo

  1. 1HO-MS60-LA-QMitsutomo4.5 tons · 52,000 Btu/h · DuctlessKeeps 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)
    Good
    Efficiency at 5°F
    2.05 (COP at 5°F)
    Good
    Seasonal efficiency
    10.7 (HSPF2)
    Great
    69.9score / 100
  2. 2HO-MS48-LA-QMitsutomo4 tons · 46,000 Btu/h · DuctlessKeeps 99% of its heat at 5°FMeets CEE 2025, CEE 2026, Xcel CC, ENERGY STAR CC
    Heat kept at 5°F
    99% (Capacity at 5°F vs 47°F)
    Top 10%
    Efficiency at 5°F
    2.00 (COP at 5°F)
    Below the middle
    Seasonal efficiency
    10.6 (HSPF2)
    Good
    68.7score / 100
  3. 3HO-SG48-LA-Qwith ductless indoor unit HC-UG48-LA-QMitsutomo4 tons · 48,000 Btu/h · DuctlessKeeps 90% of its heat at 5°FMeets CEE 2025, CEE 2026, Xcel CC, ENERGY STAR CC
    Heat kept at 5°F
    90% (Capacity at 5°F vs 47°F)
    Good
    Efficiency at 5°F
    1.96 (COP at 5°F)
    Below the middle
    Seasonal efficiency
    11.0 (HSPF2)
    Top 10%
    60.2score / 100

TRUST AIR CONDITIONERS

  1. 1M6H60HS/O6S4PTRUST AIR CONDITIONERSAlso listed as M6H60HN/O6S4P4.5 tons · 52,000 Btu/h · DuctlessKeeps 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)
    Good
    Efficiency at 5°F
    2.05 (COP at 5°F)
    Good
    Seasonal efficiency
    10.7 (HSPF2)
    Great
    69.9score / 100
  2. 2M6H48HS/O6S4PTRUST AIR CONDITIONERSAlso listed as M6H48HN/O6S4P4 tons · 46,000 Btu/h · DuctlessKeeps 99% of its heat at 5°FMeets CEE 2025, CEE 2026, Xcel CC, ENERGY STAR CC
    Heat kept at 5°F
    99% (Capacity at 5°F vs 47°F)
    Top 10%
    Efficiency at 5°F
    2.00 (COP at 5°F)
    Below the middle
    Seasonal efficiency
    10.6 (HSPF2)
    Good
    68.7score / 100
  3. 3OAH48H/O6S4Pwith ductless indoor unit IUMC448H/I61PTRUST AIR CONDITIONERS4 tons · 48,000 Btu/h · DuctlessKeeps 90% of its heat at 5°FMeets CEE 2025, CEE 2026, Xcel CC, ENERGY STAR CC
    Heat kept at 5°F
    90% (Capacity at 5°F vs 47°F)
    Good
    Efficiency at 5°F
    1.96 (COP at 5°F)
    Below the middle
    Seasonal efficiency
    11.0 (HSPF2)
    Top 10%
    60.2score / 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.

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