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KANIONco vs Mitsutomo: heat pump ratings compared

Against heat pumps of the same size and type, a typical KANIONco model beats 46% 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

KANIONco

46%

of similar heat pumps beaten by its typical model

About average

91 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°FKANIONco: Beats 49%Mitsutomo: Beats 48%
  • Heating power kept at 5°FCapacity at 5°F vs 47°FKANIONco: Beats 37%Mitsutomo: Beats 72%
  • Winter-long heating efficiencyHSPF2KANIONco: Beats 45%Mitsutomo: Beats 72%
  • Summer-long cooling efficiencySEER2KANIONco: Beats 48%Mitsutomo: Beats 60%
  • Hot-day cooling efficiencyEER2KANIONco: Beats 38%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

    KANIONco
    57%
    Mitsutomo
    71%

  • Xcel CC

    KANIONco
    33%
    Mitsutomo
    68%

  • CEE Advanced

    KANIONco
    0%
    Mitsutomo
    3%

  • ENERGY STAR CC

    KANIONco
    18%
    Mitsutomo
    77%

Top cold-climate picks, ductless up to 1.5 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, Up to 1.5 tons (under 21,000 Btu/h cooling). What size is my system?

KANIONco

  1. 1KWSM-06IR410AHS26.5ODUwith ductless indoor unit KWSM-06IR410AHS26.5IDUKANIONco0.5 tons · 6,000 Btu/h · DuctlessKeeps 107% of its heat at 5°FMeets CEE 2025, CEE 2026, Xcel CC, ENERGY STAR CC
    Heat kept at 5°F
    107% (Capacity at 5°F vs 47°F)
    Top 10%
    Efficiency at 5°F
    2.09 (COP at 5°F)
    Great
    Seasonal efficiency
    13.6 (HSPF2)
    Top 10%
    89.3score / 100
  2. 2KWSM-09IR410AHS24MVwith ductless indoor unit KWSM-09IR410AHS24MVKANIONco1 ton · 9,000 Btu/h · DuctlessKeeps 80% of its heat at 5°FMeets CEE 2025, CEE 2026, Xcel CC, ENERGY STAR CC
    Heat kept at 5°F
    80% (Capacity at 5°F vs 47°F)
    Good
    Efficiency at 5°F
    2.11 (COP at 5°F)
    Great
    Seasonal efficiency
    11.4 (HSPF2)
    Top 10%
    80.2score / 100
  3. 3KWSM-09IR410AHS28.1ODUwith ductless indoor unit KWSM-09IR410AHS28.1IDUKANIONco1 ton · 9,000 Btu/h · DuctlessKeeps 88% of its heat at 5°FMeets CEE 2025, CEE 2026, Xcel CC, ENERGY STAR CC
    Heat kept at 5°F
    88% (Capacity at 5°F vs 47°F)
    Great
    Efficiency at 5°F
    1.97 (COP at 5°F)
    Good
    Seasonal efficiency
    11.5 (HSPF2)
    Top 10%
    76.2score / 100

Mitsutomo

  1. 1HO-SZ06-AB-Qwith ductless indoor unit HJ-UZ06-AB-QMitsutomo0.5 tons · 6,500 Btu/h · DuctlessKeeps 113% of its heat at 5°FMeets CEE 2025, CEE 2026, Xcel CC, ENERGY STAR CC
    Heat kept at 5°F
    113% (Capacity at 5°F vs 47°F)
    Top 10%
    Efficiency at 5°F
    2.00 (COP at 5°F)
    Good
    Seasonal efficiency
    10.8 (HSPF2)
    Great
    82.4score / 100
  2. 2HO-SZ12-AB-Qwith ductless indoor unit HL-UZ12-AB-QMitsutomo1 ton · 12,000 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)
    Great
    Efficiency at 5°F
    1.99 (COP at 5°F)
    Good
    Seasonal efficiency
    10.7 (HSPF2)
    Great
    77.0score / 100
  3. 3HO-SZ09-AB-Qwith ductless indoor unit HW-SZ09-AB-QMitsutomo1 ton · 9,000 Btu/h · DuctlessKeeps 94% of its heat at 5°FMeets CEE 2025, CEE 2026, Xcel CC, ENERGY STAR CC
    Heat kept at 5°F
    94% (Capacity at 5°F vs 47°F)
    Great
    Efficiency at 5°F
    1.90 (COP at 5°F)
    Below the middle
    Seasonal efficiency
    11.6 (HSPF2)
    Top 10%
    74.8score / 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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