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Lennox vs Rheem: heat pump ratings compared

Against heat pumps of the same size and type, a typical Lennox model beats 56% and a typical Rheem model 54%. Lennox rates slightly higher overall.

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

Lennox

56%

of similar heat pumps beaten by its typical model

Above average

313 models listed

Rheem

54%

of similar heat pumps beaten by its typical model

About average

291 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°FLennox: Beats 58%Rheem: Beats 69%
  • Heating power kept at 5°FCapacity at 5°F vs 47°FLennox: Beats 48%Rheem: Beats 59%
  • Winter-long heating efficiencyHSPF2Lennox: Beats 49%Rheem: Beats 49%
  • Summer-long cooling efficiencySEER2Lennox: Beats 49%Rheem: Beats 44%
  • Hot-day cooling efficiencyEER2Lennox: Beats 54%Rheem: Beats 46%

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

    Lennox
    46%
    Rheem
    40%

  • Xcel CC

    Lennox
    29%
    Rheem
    35%

  • CEE Advanced

    Lennox
    1%
    Rheem
    6%

  • ENERGY STAR CC

    Lennox
    20%
    Rheem
    16%

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?

Lennox

  1. 1MPC009S4S-1Pwith ductless indoor unit MWMC006S4-2PLennox0.5 tons · 6,000 Btu/h · DuctlessKeeps 107% of its heat at 5°FMeets CEE 2025, CEE 2026, CEE Advanced, Xcel CC, DOE CCHP, ENERGY STAR CC
    Heat kept at 5°F
    107% (Capacity at 5°F vs 47°F)
    Top 10%
    Efficiency at 5°F
    2.10 (COP at 5°F)
    Great
    Seasonal efficiency
    13.6 (HSPF2)
    Top 10%
    90.2score / 100
  2. 2A-VMH06SV-1with ductless indoor unit B-VMH06SV-1Lennox (sold as Comfort-Aire)Also sold as Allied 4DHPS209S-1P0.5 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
  3. 34DHP2S09S-1Pwith ductless indoor unit DWM209S4-1PLennox (sold as Allied)1 ton · 9,000 Btu/h · DuctlessKeeps 86% of its heat at 5°FMeets CEE 2025, CEE 2026, Xcel CC, ENERGY STAR CC
    Heat kept at 5°F
    86% (Capacity at 5°F vs 47°F)
    Good
    Efficiency at 5°F
    2.19 (COP at 5°F)
    Great
    Seasonal efficiency
    12.3 (HSPF2)
    Top 10%
    86.0score / 100

Rheem

  1. 1RO1HGZ15AJ1Swith ductless indoor unit UIWHGZ15AJ1SRheem (sold as RUUD)1 ton · 14,500 Btu/h · DuctlessKeeps 117% of its heat at 5°FMeets CEE 2025, CEE 2026, CEE Advanced, Xcel CC, DOE CCHP
    Heat kept at 5°F
    117% (Capacity at 5°F vs 47°F)
    Top 10%
    Efficiency at 5°F
    2.24 (COP at 5°F)
    Top 10%
    Seasonal efficiency
    12.8 (HSPF2)
    Top 10%
    95.0score / 100
  2. 2RO1HGZ12AJ1Swith ductless indoor unit RIWHGZ12AJ1SRheem1 ton · 12,000 Btu/h · DuctlessKeeps 104% of its heat at 5°FMeets CEE 2025, CEE 2026, CEE Advanced, Xcel CC, DOE CCHP
    Heat kept at 5°F
    104% (Capacity at 5°F vs 47°F)
    Top 10%
    Efficiency at 5°F
    2.32 (COP at 5°F)
    Top 10%
    Seasonal efficiency
    12.9 (HSPF2)
    Top 10%
    94.5score / 100
  3. 3RO1HHZ09AJ8Swith ductless indoor unit RICHHZ09AJ8SRheem (sold as RUUD)1 ton · 9,000 Btu/h · DuctlessKeeps 112% of its heat at 5°FMeets CEE 2025, CEE 2026, CEE Advanced, Xcel CC, DOE CCHP
    Heat kept at 5°F
    112% (Capacity at 5°F vs 47°F)
    Top 10%
    Efficiency at 5°F
    2.22 (COP at 5°F)
    Great
    Seasonal efficiency
    11.8 (HSPF2)
    Top 10%
    93.7score / 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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