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Mitsutomo vs THERMOCORE SYSTEMS: heat pump ratings compared

Against heat pumps of the same size and type, a typical Mitsutomo model beats 58% and a typical THERMOCORE SYSTEMS model 61%. THERMOCORE SYSTEMS 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

THERMOCORE SYSTEMS

61%

of similar heat pumps beaten by its typical model

Well above average

17 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%THERMOCORE SYSTEMS: Beats 61%
  • Heating power kept at 5°FCapacity at 5°F vs 47°FMitsutomo: Beats 58%THERMOCORE SYSTEMS: Beats 55%
  • Winter-long heating efficiencyHSPF2Mitsutomo: Beats 69%THERMOCORE SYSTEMS: Beats 68%
  • Summer-long cooling efficiencySEER2Mitsutomo: Beats 57%THERMOCORE SYSTEMS: Beats 65%
  • Hot-day cooling efficiencyEER2Mitsutomo: Beats 51%THERMOCORE SYSTEMS: Beats 57%

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%
    THERMOCORE SYSTEMS
    100%

  • Xcel CC

    Mitsutomo
    75%
    THERMOCORE SYSTEMS
    71%

  • CEE Advanced

    Mitsutomo
    4%
    THERMOCORE SYSTEMS
    0%

  • ENERGY STAR CC

    Mitsutomo
    77%
    THERMOCORE SYSTEMS
    0%

Top cold-climate picks, ductless 2 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, 2 tons (21,000–26,999 Btu/h cooling). What size is my system?

Mitsutomo

  1. 1HO-SZ24-LA-Qwith ductless indoor unit HC-UZ24-LA-QMitsutomo2 tons · 23,400 Btu/h · DuctlessKeeps 95% of its heat at 5°FMeets CEE 2025, CEE 2026, Xcel CC, ENERGY STAR CC
    Heat kept at 5°F
    95% (Capacity at 5°F vs 47°F)
    Great
    Efficiency at 5°F
    2.23 (COP at 5°F)
    Great
    Seasonal efficiency
    11.6 (HSPF2)
    Top 10%
    89.4score / 100
  2. 2RU-SZ24-LA-Qwith ductless indoor unit HF-UZ24-LA-QMitsutomo2 tons · 24,000 Btu/h · DuctlessKeeps 76% of its heat at 5°FMeets CEE 2025, CEE 2026, Xcel CC, ENERGY STAR CC
    Heat kept at 5°F
    76% (Capacity at 5°F vs 47°F)
    Good
    Efficiency at 5°F
    2.27 (COP at 5°F)
    Great
    Seasonal efficiency
    11.1 (HSPF2)
    Top 10%
    77.9score / 100
  3. 3RO-SZ24-LA-Qwith ductless indoor unit RW-SZ24-LA-QMitsutomo2 tons · 24,000 Btu/h · DuctlessKeeps 71% of its heat at 5°FMeets Xcel CC, ENERGY STAR CC
    Heat kept at 5°F
    71% (Capacity at 5°F vs 47°F)
    Below the middle
    Efficiency at 5°F
    2.11 (COP at 5°F)
    Great
    Seasonal efficiency
    9.0 (HSPF2)
    Below the middle
    45.1score / 100

THERMOCORE SYSTEMS

  1. 1T7HH21S-H224-Cwith ductless indoor unit T7HH21S-H224-ETHERMOCORE SYSTEMS2 tons · 24,000 Btu/h · DuctlessKeeps 83% of its heat at 5°FMeets CEE 2025, CEE 2026, Xcel CC
    Heat kept at 5°F
    83% (Capacity at 5°F vs 47°F)
    Good
    Efficiency at 5°F
    2.34 (COP at 5°F)
    Top 10%
    Seasonal efficiency
    13.5 (HSPF2)
    Top 10%
    88.4score / 100
  2. 2T7E18S-H224-Cwith ductless indoor unit T7E18S-H224-ETHERMOCORE SYSTEMS2 tons · 24,000 Btu/h · DuctlessKeeps 71% of its heat at 5°FMeets CEE 2025, CEE 2026, Xcel CC
    Heat kept at 5°F
    71% (Capacity at 5°F vs 47°F)
    Below the middle
    Efficiency at 5°F
    2.14 (COP at 5°F)
    Great
    Seasonal efficiency
    9.3 (HSPF2)
    Below the middle
    48.0score / 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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