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1HVAC heat pumps: how do their ratings compare?

A typical 1HVAC heat pump beats 61% of similar heat pumps (same size and type), which is well above average. 1HVAC has 70 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

61%

of similar heat pumps beaten by its typical model

Well above average

1HVAC has no QMID (the manufacturer ID the 25C tax credit needs) on file, so it is not ranked against other brands. Based on 90 models with every rating.

1HVAC, rating by ratingStrongest on winter-long heating efficiency (beats 71%), weakest on hot-day cooling efficiency (beats 55%).
  • Efficiency on a 5°F dayCOP at 5°FBeats 57%
  • Heating power kept at 5°FCapacity at 5°F vs 47°FBeats 59%
  • Winter-long heating efficiencyHSPF2Beats 71%
  • Summer-long cooling efficiencySEER2Beats 64%
  • Hot-day cooling efficiencyEER2Beats 55%

Average (50%)

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

Want 1HVAC’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.

  • 87%

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

    61 models. All brands: 57%.

    See them

  • 74%

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

    52 models. All brands: 53%.

    See them

  • 4%

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

    3 models. All brands: 3%.

    See them

1HVAC 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, 3.5–4.5 tons (39,000–56,999 Btu/h cooling). What size is my system?

17 of 1HVAC’s 17 models of this size and type have all five ratings.

  1. 1ES-48Z-M6C1HVAC4 tons · 45,000 Btu/h · DuctedCold-climate pick, score 77.9Meets CEE 2025, CEE 2026, Xcel CC, ENERGY STAR CC
    Heat kept at 5°F
    81% (Capacity at 5°F vs 47°F)
    Good
    Efficiency at 5°F
    2.10 (COP at 5°F)
    Good
    Winter efficiency
    10.6 (HSPF2)
    Top 10%
    Cooling efficiency
    20.4 (SEER2)
    Top 10%
    Hot-day cooling
    12.0 (EER2)
    Great
    85.1score / 100Heating 78 · Cooling 92
  2. 2ACIQ-48Z-HH-M6C1HVAC4 tons · 47,000 Btu/h · DuctedCold-climate pick, score 82.7Meets CEE 2025, CEE 2026, Xcel CC, ENERGY STAR CC
    Heat kept at 5°F
    100% (Capacity at 5°F vs 47°F)
    Top 10%
    Efficiency at 5°F
    2.00 (COP at 5°F)
    Good
    Winter efficiency
    11.0 (HSPF2)
    Top 10%
    Cooling efficiency
    20.4 (SEER2)
    Top 10%
    Hot-day cooling
    11.7 (EER2)
    Good
    83.9score / 100Heating 83 · Cooling 85
  3. 3ACIQ-48-HP32with ducted air handler ACIQ-48-AH321HVAC4 tons · 48,000 Btu/h · DuctedCold-climate pick, score 78.9Meets CEE 2025, CEE 2026, Xcel CC, ENERGY STAR CC
    Heat kept at 5°F
    100% (Capacity at 5°F vs 47°F)
    Top 10%
    Efficiency at 5°F
    2.00 (COP at 5°F)
    Good
    Winter efficiency
    10.0 (HSPF2)
    Great
    Cooling efficiency
    19.0 (SEER2)
    Great
    Hot-day cooling
    12.0 (EER2)
    Great
    83.1score / 100Heating 79 · Cooling 87
  4. 4ACIQ-55Z-HH-M6C1HVAC4.5 tons · 53,000 Btu/h · DuctedCold-climate pick, score 81.2Meets CEE 2025, CEE 2026, Xcel CC, ENERGY STAR CC
    Heat kept at 5°F
    87% (Capacity at 5°F vs 47°F)
    Great
    Efficiency at 5°F
    2.10 (COP at 5°F)
    Good
    Winter efficiency
    10.7 (HSPF2)
    Top 10%
    Cooling efficiency
    20.0 (SEER2)
    Top 10%
    Hot-day cooling
    11.7 (EER2)
    Good
    82.0score / 100Heating 81 · Cooling 83
  5. 5EZ-48Z-M5B1HVAC3.5 tons · 43,000 Btu/h · DuctedCold-climate pick, score 70.5Meets CEE 2025, CEE 2026, Xcel CC, ENERGY STAR CC
    Heat kept at 5°F
    79% (Capacity at 5°F vs 47°F)
    Good
    Efficiency at 5°F
    2.00 (COP at 5°F)
    Good
    Winter efficiency
    10.5 (HSPF2)
    Top 10%
    Cooling efficiency
    20.0 (SEER2)
    Top 10%
    Hot-day cooling
    12.0 (EER2)
    Great
    80.2score / 100Heating 71 · Cooling 90

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 1HVAC’s ranks on each rating, its models inside every size and type, cold-weather curves and its newest certifications.

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