Skip to content
Rebate.Blue

AUX vs Gree: heat pump ratings compared

Against heat pumps of the same size and type, a typical AUX model beats 49% and a typical Gree model 54%. Gree 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

Gree

54%

of similar heat pumps beaten by its typical model

About average

724 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%Gree: Beats 43%
  • Heating power kept at 5°FCapacity at 5°F vs 47°FAUX: Beats 51%Gree: Beats 57%
  • Winter-long heating efficiencyHSPF2AUX: Beats 40%Gree: Beats 43%
  • Summer-long cooling efficiencySEER2AUX: Beats 48%Gree: Beats 60%
  • Hot-day cooling efficiencyEER2AUX: Beats 39%Gree: Beats 58%

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%
    Gree
    81%

  • Xcel CC

    AUX
    66%
    Gree
    80%

  • CEE Advanced

    AUX
    1%
    Gree
    6%

  • ENERGY STAR CC

    AUX
    35%
    Gree
    66%

All-around best, ductless 2.5–3 tons

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

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

AUX

  1. 1AM4-H36/2DR3BAUXAlso listed as ASUM36HPMULO3 tons · 36,000 Btu/h · DuctlessCold-climate pick, score 73.4Meets CEE 2025, CEE 2026, Xcel CC, ENERGY STAR CC
    Heat kept at 5°F
    92% (Capacity at 5°F vs 47°F)
    Good
    Efficiency at 5°F
    2.00 (COP at 5°F)
    Good
    Winter efficiency
    11.0 (HSPF2)
    Top 10%
    Cooling efficiency
    24.0 (SEER2)
    Top 10%
    Hot-day cooling
    12.5 (EER2)
    Great
    78.5score / 100Heating 73 · Cooling 84
  2. 2AM4-H30/2DR3AAUXAlso listed as ASPR30HPMULO2.5 tons · 30,000 Btu/h · DuctlessCold-climate pick, score 58.1Meets CEE 2025, CEE 2026, Xcel CC, ENERGY STAR CC
    Heat kept at 5°F
    82% (Capacity at 5°F vs 47°F)
    Good
    Efficiency at 5°F
    2.00 (COP at 5°F)
    Good
    Winter efficiency
    10.0 (HSPF2)
    Good
    Cooling efficiency
    23.0 (SEER2)
    Great
    Hot-day cooling
    12.5 (EER2)
    Great
    67.2score / 100Heating 58 · Cooling 76
  3. 3AM4-H36/2DR3AAUXAlso listed as ASPR36HPMULO3 tons · 36,000 Btu/h · DuctlessCold-climate pick, score 52.0Meets CEE 2025, CEE 2026, Xcel CC, ENERGY STAR CC
    Heat kept at 5°F
    71% (Capacity at 5°F vs 47°F)
    Below the middle
    Efficiency at 5°F
    2.00 (COP at 5°F)
    Good
    Winter efficiency
    10.0 (HSPF2)
    Good
    Cooling efficiency
    23.0 (SEER2)
    Great
    Hot-day cooling
    12.3 (EER2)
    Good
    63.2score / 100Heating 52 · Cooling 75

Gree

  1. 1GMV-V36WL/NHC-T(U)GreeAlso sold as Tosot TMV-V36WL/NHC-T(U)3 tons · 36,000 Btu/h · DuctlessCold-climate pick, score 58.1Meets 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
    2.40 (COP at 5°F)
    Top 10%
    Winter efficiency
    9.8 (HSPF2)
    Below the middle
    Cooling efficiency
    23.5 (SEER2)
    Great
    Hot-day cooling
    14.5 (EER2)
    Top 10%
    75.5score / 100Heating 58 · Cooling 93
  2. 2GWHD(30)ND6MOGreeAlso sold as Tosot TM30H32MO, Kinghome KM30X6O, Tosot MZ-COSMO30/O, Tosot TM30D6MO and 6 more; also listed as MUL30HP230V1R32AO, GS4M30HP230V1MO2.5 tons · 28,400 Btu/h · DuctlessCold-climate pick, score 70.3Meets CEE 2025, CEE 2026, Xcel CC, ENERGY STAR CC
    Heat kept at 5°F
    90% (Capacity at 5°F vs 47°F)
    Good
    Efficiency at 5°F
    2.07 (COP at 5°F)
    Great
    Winter efficiency
    10.0 (HSPF2)
    Good
    Cooling efficiency
    21.0 (SEER2)
    Good
    Hot-day cooling
    13.6 (EER2)
    Top 10%
    71.1score / 100Heating 70 · Cooling 72
  3. 3GMV-36WL/NHC-T(U)GreeAlso sold as Tosot TMV-36WL/NHC-T(U)3 tons · 37,600 Btu/h · DuctlessNot a cold-climate pick: keeps 45% of its heat at 5°FMeets CEE 2025
    Heat kept at 5°F
    45% (Capacity at 5°F vs 47°F)
    Below the middle
    Efficiency at 5°F
    2.20 (COP at 5°F)
    Top 10%
    Winter efficiency
    9.6 (HSPF2)
    Below the middle
    Cooling efficiency
    24.0 (SEER2)
    Top 10%
    Hot-day cooling
    14.0 (EER2)
    Top 10%
    69.8score / 100Heating 46 · Cooling 94

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.

Open the advanced view