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Ephoca vs Mitsutomo: heat pump ratings compared

Against heat pumps of the same size and type, a typical Ephoca model beats 20% and a typical Mitsutomo model 59%. Mitsutomo rates higher overall.

Covers older R-410A heat pumps, no longer installed new. See models sold today · Updated

Ephoca

20%

of similar heat pumps beaten by its typical model

Well below average

30 models listed

Mitsutomo

59%

of similar heat pumps beaten by its typical model

Above average

31 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°FEphoca: Beats 4%Mitsutomo: Beats 48%
  • Heating power kept at 5°FCapacity at 5°F vs 47°FEphoca: Beats 48%Mitsutomo: Beats 72%
  • Winter-long heating efficiencyHSPF2Ephoca: Beats 38%Mitsutomo: Beats 72%
  • Summer-long cooling efficiencySEER2Ephoca: Beats 7%Mitsutomo: Beats 60%
  • Hot-day cooling efficiencyEER2Ephoca: Beats 14%Mitsutomo: Beats 50%

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

    Ephoca
    0%
    Mitsutomo
    71%

  • Xcel CC

    Ephoca
    0%
    Mitsutomo
    68%

  • CEE Advanced

    Ephoca
    0%
    Mitsutomo
    3%

  • ENERGY STAR CC

    Ephoca
    13%
    Mitsutomo
    77%

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?

Ephoca

No ductless, 3.5–4.5 tons model from Ephoca.

Mitsutomo

  1. 1HO-MP48-AB-QMitsutomo4 tons · 48,000 Btu/h · DuctlessKeeps 92% of its heat at 5°FMeets CEE 2025, CEE 2026, Xcel CC, ENERGY STAR CC
    Heat kept at 5°F
    92% (Capacity at 5°F vs 47°F)
    Great
    Efficiency at 5°F
    2.00 (COP at 5°F)
    Good
    Seasonal efficiency
    10.0 (HSPF2)
    Great
    80.5score / 100
  2. 2HW-SZ60-BB-Qwith ductless indoor unit HF-UZ60-BB-QMitsutomo4.5 tons · 55,000 Btu/h · DuctlessKeeps 94% of its heat at 5°FMeets Xcel CC, ENERGY STAR CC
    Heat kept at 5°F
    94% (Capacity at 5°F vs 47°F)
    Top 10%
    Efficiency at 5°F
    1.97 (COP at 5°F)
    Good
    Seasonal efficiency
    10.2 (HSPF2)
    Great
    76.8score / 100
  3. 3HO-SZ48-BB-Qwith ductless indoor unit HC-UZ48-BB-QMitsutomo4 tons · 48,000 Btu/h · DuctlessKeeps 91% of its heat at 5°FMeets ENERGY STAR CC
    Heat kept at 5°F
    91% (Capacity at 5°F vs 47°F)
    Great
    Efficiency at 5°F
    1.98 (COP at 5°F)
    Good
    Seasonal efficiency
    10.7 (HSPF2)
    Top 10%
    76.0score / 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.

Open the advanced view