Mitsutomo heat pumps: how do their ratings compare?

A typical Mitsutomo heat pump beats 58% of similar heat pumps (same size and type), which is above average. Mitsutomo has 56 heat pump models in this list.

Covers heat pumps sold new today (R-454B and R-32 refrigerant). See older R-410A models · Updated Oct 10, 2026

Overall score

58%

of similar heat pumps beaten by its typical model

Above average

Mitsutomo has no QMID (the manufacturer ID the 25C tax credit needs) on file, so it is not ranked against other brands. Based on 84 models with every rating.

Mitsutomo, rating by ratingStrongest on winter-long heating efficiency (beats 69%), weakest on hot-day cooling efficiency (beats 51%).

Efficiency on a 5°F dayCOP at 5°FBeats 61%
Heating power kept at 5°FCapacity at 5°F vs 47°FBeats 58%
Winter-long heating efficiencyHSPF2Beats 69%
Summer-long cooling efficiencySEER2Beats 57%
Hot-day cooling efficiencyEER2Beats 51%

Average (50%)

Each bar: the share of similar heat pumps a typical model beats on that rating.

Want Mitsutomo’s ranks and its models inside every size class? Switch to Advanced

Rebate standards

Share of this brand’s models that meet the efficiency levels rebate programs use. Programs can have other rules too.

82%
meet CEE 2025 Tier 1, the level many utility rebates use.
46 models. All brands: 57%.
See them
75%
meet Xcel Energy Colorado’s cold-climate rebate levels.
42 models. All brands: 53%.
See them
4%
reach the cold-climate tier: full heating output and a COP of 2.1 or more at 5°F.
2 models. All brands: 3%.
See them

Top Mitsutomo cold-climate picks, by size

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, 2.5–3 tons (27,000–38,999 Btu/h cooling). What size is my system?

6 of Mitsutomo’s 8 models of this size and type qualify.

1HO-SG36-LA-Qwith ductless indoor unit HF-UG36-LA-QMitsutomo3 tons · 36,400 Btu/h · DuctlessKeeps 104% of its heat at 5°FMeets CEE 2025, CEE 2026, Xcel CC, ENERGY STAR CC
Heat kept at 5°F
104% (Capacity at 5°F vs 47°F)
Top 10%
Efficiency at 5°F
2.02 (COP at 5°F)
Great
Seasonal efficiency
10.8 (HSPF2)
Top 10%
89.4score / 100
2HO-MP36-LA-QMitsutomo3 tons · 36,000 Btu/h · DuctlessKeeps 104% of its heat at 5°FMeets CEE 2025, CEE 2026, Xcel CC, ENERGY STAR CC
Heat kept at 5°F
104% (Capacity at 5°F vs 47°F)
Top 10%
Efficiency at 5°F
1.95 (COP at 5°F)
Below the middle
Seasonal efficiency
10.9 (HSPF2)
Top 10%
72.6score / 100
3B-RU-UZ36-LA-Qwith ductless indoor unit HC-UG36-LA-QMitsutomo3 tons · 36,000 Btu/h · DuctlessKeeps 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
2.20 (COP at 5°F)
Top 10%
Seasonal efficiency
10.3 (HSPF2)
Good
62.8score / 100
4HO-SZ33-LA-Qwith ductless indoor unit HW-UZ33-LA-QMitsutomo3 tons · 33,000 Btu/h · DuctlessKeeps 96% of its heat at 5°FMeets CEE 2025, CEE 2026, Xcel CC, ENERGY STAR CC
Heat kept at 5°F
96% (Capacity at 5°F vs 47°F)
Good
Efficiency at 5°F
1.91 (COP at 5°F)
Below the middle
Seasonal efficiency
10.5 (HSPF2)
Great
56.5score / 100
5HO-MQ28-LA-QMitsutomo2.5 tons · 27,000 Btu/h · DuctlessKeeps 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
1.90 (COP at 5°F)
Below the middle
Seasonal efficiency
10.0 (HSPF2)
Good
53.7score / 100

These are certified test ratings, not a recommendation for your home. The right size comes from a load calculation by a contractor.

What to do next

The advanced view has Mitsutomo’s ranks on each rating, its models inside every size and type, cold-weather curves and its newest certifications.

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