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Mitsubishi Electric vs Rheem: heat pump ratings compared

Against heat pumps of the same size and type, a typical Mitsubishi Electric model beats 60% and a typical Rheem model 50%. Mitsubishi Electric rates higher overall.

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

Mitsubishi Electric

60%

of similar heat pumps beaten by its typical model

Well above average

156 models listed

Rheem

50%

of similar heat pumps beaten by its typical model

About average

341 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°FMitsubishi Electric: Beats 55%Rheem: Beats 59%
  • Heating power kept at 5°FCapacity at 5°F vs 47°FMitsubishi Electric: Beats 54%Rheem: Beats 48%
  • Winter-long heating efficiencyHSPF2Mitsubishi Electric: Beats 66%Rheem: Beats 43%
  • Summer-long cooling efficiencySEER2Mitsubishi Electric: Beats 63%Rheem: Beats 42%
  • Hot-day cooling efficiencyEER2Mitsubishi Electric: Beats 60%Rheem: Beats 40%

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

    Mitsubishi Electric
    81%
    Rheem
    36%

  • Xcel CC

    Mitsubishi Electric
    67%
    Rheem
    34%

  • CEE Advanced

    Mitsubishi Electric
    10%
    Rheem
    2%

  • ENERGY STAR CC

    Mitsubishi Electric
    66%
    Rheem
    33%

All-around best, ductless 5 tons and up

Balances heating (5°F output and efficiency, HSPF2) and cooling (SEER2, EER2), each rating against units their size.

Showing Ductless, 5 tons and up (57,000 Btu/h and up cooling). What size is my system?

Mitsubishi Electric

  1. 1MXZ-SM60NLHZ-**Mitsubishi ElectricAlso listed as PUMY-HL60NKMU5 tons · 60,000 Btu/h · DuctlessCold-climate pick, score 70.0Meets CEE 2025, CEE 2026, Xcel CC, ENERGY STAR CC
    Heat kept at 5°F
    96% (Capacity at 5°F vs 47°F)
    Top 10%
    Efficiency at 5°F
    2.00 (COP at 5°F)
    Below the middle
    Winter efficiency
    10.9 (HSPF2)
    Top 10%
    Cooling efficiency
    20.0 (SEER2)
    Below the middle
    Hot-day cooling
    12.0 (EER2)
    Great
    68.7score / 100Heating 70 · Cooling 67
  2. 2MXZ-SM60NLHZ***Mitsubishi Electric5 tons · 60,000 Btu/h · DuctlessCold-climate pick, score 69.4Meets CEE 2025, CEE 2026, Xcel CC, ENERGY STAR CC
    Heat kept at 5°F
    94% (Capacity at 5°F vs 47°F)
    Top 10%
    Efficiency at 5°F
    2.00 (COP at 5°F)
    Below the middle
    Winter efficiency
    10.9 (HSPF2)
    Top 10%
    Cooling efficiency
    20.0 (SEER2)
    Below the middle
    Hot-day cooling
    12.0 (EER2)
    Great
    68.4score / 100Heating 69 · Cooling 67
  3. 3MXZ-SM60NL***Mitsubishi ElectricAlso listed as PUMY-L60NKMU, MXZ-SM60NL-5 tons · 60,000 Btu/h · DuctlessCold-climate pick, score 62.1Meets CEE 2025, CEE 2026, Xcel CC, ENERGY STAR CC
    Heat kept at 5°F
    72% (Capacity at 5°F vs 47°F)
    Great
    Efficiency at 5°F
    2.00 (COP at 5°F)
    Below the middle
    Winter efficiency
    10.5 (HSPF2)
    Great
    Cooling efficiency
    20.0 (SEER2)
    Below the middle
    Hot-day cooling
    12.0 (EER2)
    Great
    64.7score / 100Heating 62 · Cooling 67

Rheem

  1. 1ML55HP230MUL-O*Rheem (sold as Mainline)5 tons · 60,000 Btu/h · DuctlessNot a cold-climate pick: keeps 65% of its heat at 5°FMeets CEE 2025, CEE 2026
    Heat kept at 5°F
    65% (Capacity at 5°F vs 47°F)
    Below the middle
    Efficiency at 5°F
    2.20 (COP at 5°F)
    Great
    Winter efficiency
    9.5 (HSPF2)
    Below the middle
    Cooling efficiency
    22.0 (SEER2)
    Great
    Hot-day cooling
    10.0 (EER2)
    Below the middle
    58.6score / 100Heating 58 · Cooling 59
  2. 2ML55HP230MUL-ORheem (sold as Mainline)5 tons · 60,000 Btu/h · DuctlessNot a cold-climate pick: keeps 63% of its heat at 5°FMeets CEE 2025
    Heat kept at 5°F
    60% (Capacity at 5°F vs 47°F)
    Below the middle
    Efficiency at 5°F
    2.00 (COP at 5°F)
    Below the middle
    Winter efficiency
    9.6 (HSPF2)
    Good
    Cooling efficiency
    19.2 (SEER2)
    Below the middle
    Hot-day cooling
    10.0 (EER2)
    Below the middle
    32.5score / 100Heating 28 · Cooling 37

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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