KANIONco vs Mitsutomo: heat pump ratings compared
Against heat pumps of the same size and type, a typical KANIONco model beats 47% and a typical Mitsutomo model 58%. Mitsutomo rates higher overall.
Covers heat pumps sold new today (R-454B and R-32 refrigerant). See older R-410A models · Updated
KANIONco
47%
of similar heat pumps beaten by its typical model
About average56 models listed
Mitsutomo
58%
of similar heat pumps beaten by its typical model
Above average56 models listed
- Efficiency on a 5°F dayCOP at 5°FKANIONco: Beats 37%Mitsutomo: Beats 61%
- Heating power kept at 5°FCapacity at 5°F vs 47°FKANIONco: Beats 45%Mitsutomo: Beats 58%
- Winter-long heating efficiencyHSPF2KANIONco: Beats 50%Mitsutomo: Beats 69%
- Summer-long cooling efficiencySEER2KANIONco: Beats 58%Mitsutomo: Beats 57%
- Hot-day cooling efficiencyEER2KANIONco: Beats 41%Mitsutomo: Beats 51%
Average (50%)Dashed outline: the other brand, for comparison
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CEE 2025
- KANIONco
- 66%
- Mitsutomo
- 82%
Xcel CC
- KANIONco
- 63%
- Mitsutomo
- 75%
CEE Advanced
- KANIONco
- 0%
- Mitsutomo
- 4%
ENERGY STAR CC
- KANIONco
- 36%
- 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
- 1KWSMO-18IR454BHS27RKANIONco1.5 tons · 20,000 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
- 2.00 (COP at 5°F)
- Good
- Seasonal efficiency
- 10.0 (HSPF2)
- Good
- 2KWSMO-18IR454BHS20KANIONco1.5 tons · 18,000 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
- 2.00 (COP at 5°F)
- Good
- Seasonal efficiency
- 10.5 (HSPF2)
- Great
- 3KWSM-09IR454BHS25Rwith ductless indoor unit KWSM-09IR454BHS25RKANIONco1 ton · 9,000 Btu/h · DuctlessKeeps 106% of its heat at 5°FMeets CEE 2025, CEE 2026, Xcel CC, ENERGY STAR CC
- Heat kept at 5°F
- 106% (Capacity at 5°F vs 47°F)
- Top 10%
- Efficiency at 5°F
- 1.80 (COP at 5°F)
- Below the middle
- Seasonal efficiency
- 10.5 (HSPF2)
- Great
Mitsutomo
- 1HO-SZ06-LA-Qwith ductless indoor unit HJ-UZ06-LA-QMitsutomo0.5 tons · 6,500 Btu/h · DuctlessKeeps 109% of its heat at 5°FMeets CEE 2025, CEE 2026, CEE Advanced, Xcel CC, DOE CCHP, ENERGY STAR CC
- Heat kept at 5°F
- 109% (Capacity at 5°F vs 47°F)
- Top 10%
- Efficiency at 5°F
- 2.40 (COP at 5°F)
- Top 10%
- Seasonal efficiency
- 12.0 (HSPF2)
- Top 10%
- 2RU-SZ09-LA-Qwith ductless indoor unit HL-UZ09-LA-QMitsutomo1 ton · 9,000 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)
- Great
- Efficiency at 5°F
- 2.27 (COP at 5°F)
- Top 10%
- Seasonal efficiency
- 13.9 (HSPF2)
- Top 10%
- 3RU-SZ18-LA-Qwith ductless indoor unit HL-UZ16-LA-QMitsutomo1.5 tons · 16,000 Btu/h · DuctlessKeeps 77% of its heat at 5°FMeets CEE 2025, CEE 2026, Xcel CC, ENERGY STAR CC
- Heat kept at 5°F
- 77% (Capacity at 5°F vs 47°F)
- Good
- Efficiency at 5°F
- 2.16 (COP at 5°F)
- Great
- Seasonal efficiency
- 13.5 (HSPF2)
- Top 10%
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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