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AUX vs Rheem: heat pump ratings compared

Against heat pumps of the same size and type, a typical AUX model beats 49% and a typical Rheem model 50%. Rheem rates slightly higher overall.

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

AUX

49%

of similar heat pumps beaten by its typical model

About average

189 models listed

Rheem

50%

of similar heat pumps beaten by its typical model

About average

342 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°FAUX: Beats 60%Rheem: Beats 59%
  • Heating power kept at 5°FCapacity at 5°F vs 47°FAUX: Beats 51%Rheem: Beats 48%
  • Winter-long heating efficiencyHSPF2AUX: Beats 40%Rheem: Beats 44%
  • Summer-long cooling efficiencySEER2AUX: Beats 48%Rheem: Beats 42%
  • Hot-day cooling efficiencyEER2AUX: Beats 39%Rheem: Beats 41%

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

    AUX
    68%
    Rheem
    36%

  • Xcel CC

    AUX
    66%
    Rheem
    34%

  • CEE Advanced

    AUX
    1%
    Rheem
    2%

  • ENERGY STAR CC

    AUX
    35%
    Rheem
    34%

All-around best, ducted up to 1.5 tons

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

Showing Ducted, Up to 1.5 tons (under 21,000 Btu/h cooling). What size is my system?

AUX

  1. 1ASUM18HPMULOAUX1.5 tons · 18,000 Btu/h · DuctedCold-climate pick, score 75.4Meets 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
    2.00 (COP at 5°F)
    Good
    Winter efficiency
    9.8 (HSPF2)
    Good
    Cooling efficiency
    20.5 (SEER2)
    Top 10%
    Hot-day cooling
    12.3 (EER2)
    Great
    79.8score / 100Heating 75 · Cooling 84
  2. 2AFEB09HP230V1CO-Uwith ducted air handler AFEB09HP230V1SDAUX1 ton · 9,100 Btu/h · DuctedCold-climate pick, score 53.2Meets CEE 2025, CEE 2026, Xcel CC
    Heat kept at 5°F
    93% (Capacity at 5°F vs 47°F)
    Great
    Efficiency at 5°F
    1.85 (COP at 5°F)
    Below the middle
    Winter efficiency
    9.0 (HSPF2)
    Below the middle
    Cooling efficiency
    19.5 (SEER2)
    Good
    Hot-day cooling
    13.0 (EER2)
    Great
    66.2score / 100Heating 53 · Cooling 79
  3. 3ASPR18HPMULOAUX1.5 tons · 17,700 Btu/h · DuctedCold-climate pick, score 56.8Meets CEE 2025, CEE 2026, Xcel CC, ENERGY STAR CC
    Heat kept at 5°F
    78% (Capacity at 5°F vs 47°F)
    Good
    Efficiency at 5°F
    1.90 (COP at 5°F)
    Below the middle
    Winter efficiency
    9.5 (HSPF2)
    Good
    Cooling efficiency
    19.5 (SEER2)
    Good
    Hot-day cooling
    11.8 (EER2)
    Good
    62.3score / 100Heating 57 · Cooling 68

Rheem

  1. 1ML06HP230NEXH-Owith ducted air handler ML06HP230LSDUC-IRheem (sold as Mainline)0.5 tons · 6,500 Btu/h · DuctedCold-climate pick, score 93.7Meets CEE 2025, CEE 2026, Xcel CC, ENERGY STAR CC
    Heat kept at 5°F
    98% (Capacity at 5°F vs 47°F)
    Great
    Efficiency at 5°F
    2.41 (COP at 5°F)
    Top 10%
    Winter efficiency
    13.8 (HSPF2)
    Top 10%
    Cooling efficiency
    21.4 (SEER2)
    Top 10%
    Hot-day cooling
    14.4 (EER2)
    Top 10%
    95.1score / 100Heating 94 · Cooling 97
  2. 2ML09HP230NEXH-Owith ducted air handler ML09HP230LSDUC-IRheem (sold as Mainline)1 ton · 9,000 Btu/h · DuctedCold-climate pick, score 80.5Meets CEE 2025, CEE 2026, Xcel CC, ENERGY STAR CC
    Heat kept at 5°F
    112% (Capacity at 5°F vs 47°F)
    Top 10%
    Efficiency at 5°F
    1.89 (COP at 5°F)
    Below the middle
    Winter efficiency
    12.5 (HSPF2)
    Top 10%
    Cooling efficiency
    21.4 (SEER2)
    Top 10%
    Hot-day cooling
    13.4 (EER2)
    Top 10%
    87.0score / 100Heating 81 · Cooling 94
  3. 3ML09HP230NEX-Owith ducted air handler ML09HP230HSDUC-IRheem (sold as Mainline)1 ton · 9,000 Btu/h · DuctedCold-climate pick, score 81.8Meets CEE 2025, CEE 2026, Xcel CC, ENERGY STAR CC
    Heat kept at 5°F
    83% (Capacity at 5°F vs 47°F)
    Good
    Efficiency at 5°F
    2.32 (COP at 5°F)
    Great
    Winter efficiency
    11.5 (HSPF2)
    Top 10%
    Cooling efficiency
    19.7 (SEER2)
    Great
    Hot-day cooling
    13.0 (EER2)
    Great
    81.3score / 100Heating 82 · Cooling 81

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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