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AUX heat pumps: how do their ratings compare?

A typical AUX heat pump beats 52% of similar heat pumps (same size and type), which is about average. AUX has 149 heat pump models in this list.

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

Overall score

52%

of similar heat pumps beaten by its typical model

About average

Ranked 18 among brands with a QMID on file. Based on 139 models with every rating.

AUX, rating by ratingStrongest on efficiency on a 5°f day (beats 62%), weakest on hot-day cooling efficiency (beats 40%).
  • Efficiency on a 5°F dayCOP at 5°FBeats 62%
  • Heating power kept at 5°FCapacity at 5°F vs 47°FBeats 51%
  • Winter-long heating efficiencyHSPF2Beats 43%
  • Summer-long cooling efficiencySEER2Beats 51%
  • Hot-day cooling efficiencyEER2Beats 40%

Average (50%)

Each bar: the share of similar heat pumps a typical model beats on that rating.

Want AUX’s ranks and its models inside every size class? Switch to Advanced

Rebate standards

Share of this brand’s models that meet the efficiency levels rebate programs use. Programs can have other rules too.

  • 68%

    meet CEE 2025 Tier 1, the level many utility rebates use.

    101 models. All brands: 57%.

    See them

  • 63%

    meet Xcel Energy Colorado’s cold-climate rebate levels.

    94 models. All brands: 53%.

    See them

  • 1%

    reach the cold-climate tier: full heating output and a COP of 2.1 or more at 5°F.

    2 models. All brands: 3%.

    See them

AUX all-around best, by size

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

Showing Ducted, 2 tons (21,000–26,999 Btu/h cooling). What size is my system?

4 of AUX’s 4 models of this size and type have all five ratings.

  1. 1ASUM24HPMULOAUX2 tons · 24,000 Btu/h · DuctedCold-climate pick, score 63.0Meets 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
    1.90 (COP at 5°F)
    Below the middle
    Winter efficiency
    10.0 (HSPF2)
    Great
    Cooling efficiency
    21.0 (SEER2)
    Top 10%
    Hot-day cooling
    13.0 (EER2)
    Top 10%
    78.5score / 100Heating 63 · Cooling 94
  2. 2ASPR24HPMULOAUX2 tons · 24,000 Btu/h · DuctedCold-climate pick, score 59.1Meets 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
    2.00 (COP at 5°F)
    Good
    Winter efficiency
    9.5 (HSPF2)
    Good
    Cooling efficiency
    20.5 (SEER2)
    Top 10%
    Hot-day cooling
    11.8 (EER2)
    Good
    66.1score / 100Heating 59 · Cooling 73
  3. 3AHU24HPV1BOwith ducted air handler AHU24HPV1BIAUX2 tons · 24,000 Btu/h · DuctedCold-climate pick, score 59.5Meets CEE 2025, CEE 2026, Xcel CC, ENERGY STAR CC
    Heat kept at 5°F
    92% (Capacity at 5°F vs 47°F)
    Great
    Efficiency at 5°F
    1.80 (COP at 5°F)
    Below the middle
    Winter efficiency
    9.5 (HSPF2)
    Good
    Cooling efficiency
    19.0 (SEER2)
    Great
    Hot-day cooling
    11.0 (EER2)
    Below the middle
    55.5score / 100Heating 60 · Cooling 52
  4. 4AHU24HPV1AOwith ducted air handler AHU24HPV1AIAUX2 tons · 23,000 Btu/h · DuctedCold-climate pick, score 46.6Meets CEE 2025, CEE 2026, Xcel 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
    8.5 (HSPF2)
    Below the middle
    Cooling efficiency
    17.0 (SEER2)
    Below the middle
    Hot-day cooling
    10.5 (EER2)
    Below the middle
    37.6score / 100Heating 47 · Cooling 29

These are certified test ratings, not a recommendation for your home. The right size comes from a load calculation by a contractor.

What to do next

The advanced view has AUX’s ranks on each rating, its models inside every size and type, cold-weather curves and its newest certifications.

Open the advanced view