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AI AIR CONDITIONING vs Mitsutomo: heat pump ratings compared

Against heat pumps of the same size and type, a typical AI AIR CONDITIONING model beats 60% and a typical Mitsutomo model 59%. AI AIR CONDITIONING rates slightly higher overall.

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

AI AIR CONDITIONING

60%

of similar heat pumps beaten by its typical model

Well above average

48 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°FAI AIR CONDITIONING: Beats 49%Mitsutomo: Beats 48%
  • Heating power kept at 5°FCapacity at 5°F vs 47°FAI AIR CONDITIONING: Beats 57%Mitsutomo: Beats 72%
  • Winter-long heating efficiencyHSPF2AI AIR CONDITIONING: Beats 70%Mitsutomo: Beats 72%
  • Summer-long cooling efficiencySEER2AI AIR CONDITIONING: Beats 68%Mitsutomo: Beats 60%
  • Hot-day cooling efficiencyEER2AI AIR CONDITIONING: Beats 56%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

    AI AIR CONDITIONING
    79%
    Mitsutomo
    71%

  • Xcel CC

    AI AIR CONDITIONING
    56%
    Mitsutomo
    68%

  • CEE Advanced

    AI AIR CONDITIONING
    0%
    Mitsutomo
    3%

  • ENERGY STAR CC

    AI AIR CONDITIONING
    56%
    Mitsutomo
    77%

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

AI AIR CONDITIONING

  1. 1AUO18-18N1-M3Hwith ducted air handler AUH2-18N1-BM3EAI AIR CONDITIONING1.5 tons · 18,000 Btu/h · DuctedKeeps 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
    2.04 (COP at 5°F)
    Good
    Seasonal efficiency
    9.3 (HSPF2)
    Below the middle
    60.4score / 100
  2. 2A2MO21-18N1-M1AI AIR CONDITIONING1.5 tons · 18,000 Btu/h · DuctedKeeps 70% of its heat at 5°FMeets CEE 2025, CEE 2026, Xcel CC, ENERGY STAR CC
    Heat kept at 5°F
    70% (Capacity at 5°F vs 47°F)
    Below the middle
    Efficiency at 5°F
    2.00 (COP at 5°F)
    Good
    Seasonal efficiency
    9.8 (HSPF2)
    Good
    52.0score / 100
  3. 3A2MO22-18N1-M1HAI AIR CONDITIONING1.5 tons · 19,000 Btu/h · DuctedKeeps 100% of its heat at 5°FMeets CEE 2025, CEE 2026, Xcel CC, ENERGY STAR CC
    Heat kept at 5°F
    100% (Capacity at 5°F vs 47°F)
    Great
    Efficiency at 5°F
    1.83 (COP at 5°F)
    Below the middle
    Seasonal efficiency
    9.3 (HSPF2)
    Below the middle
    50.4score / 100

Mitsutomo

  1. 1HO-SZ09-AB-Qwith ducted air handler HD-UZ09-AB-QMitsutomo1 ton · 9,000 Btu/h · DuctedKeeps 108% of its heat at 5°FMeets CEE 2025, CEE 2026, Xcel CC, ENERGY STAR CC
    Heat kept at 5°F
    108% (Capacity at 5°F vs 47°F)
    Top 10%
    Efficiency at 5°F
    1.90 (COP at 5°F)
    Below the middle
    Seasonal efficiency
    12.0 (HSPF2)
    Top 10%
    74.9score / 100
  2. 2HO-SZ12-AB-Qwith ducted air handler HD-UZ12-AB-QMitsutomo1 ton · 12,000 Btu/h · DuctedKeeps 97% of its heat at 5°FMeets CEE 2025, CEE 2026, Xcel CC, ENERGY STAR CC
    Heat kept at 5°F
    97% (Capacity at 5°F vs 47°F)
    Great
    Efficiency at 5°F
    1.96 (COP at 5°F)
    Below the middle
    Seasonal efficiency
    10.0 (HSPF2)
    Great
    65.4score / 100
  3. 3HO-SZ18-AB-Qwith ducted air handler HV-UZ18-AB-QMitsutomo1.5 tons · 18,000 Btu/h · DuctedKeeps 89% of its heat at 5°FMeets CEE 2025, CEE 2026, Xcel CC, ENERGY STAR CC
    Heat kept at 5°F
    89% (Capacity at 5°F vs 47°F)
    Good
    Efficiency at 5°F
    2.00 (COP at 5°F)
    Good
    Seasonal efficiency
    9.6 (HSPF2)
    Good
    61.3score / 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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