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Durastar vs IAIR: heat pump ratings compared

Against heat pumps of the same size and type, a typical Durastar model beats 59% and a typical IAIR model 18%. Durastar rates higher overall.

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

Durastar

59%

of similar heat pumps beaten by its typical model

Above average

35 models listed

IAIR

18%

of similar heat pumps beaten by its typical model

Well below average

35 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°FDurastar: Beats 54%IAIR: Beats 2%
  • Heating power kept at 5°FCapacity at 5°F vs 47°FDurastar: Beats 55%IAIR: Beats 4%
  • Winter-long heating efficiencyHSPF2Durastar: Beats 66%IAIR: Beats 19%
  • Summer-long cooling efficiencySEER2Durastar: Beats 62%IAIR: Beats 15%
  • Hot-day cooling efficiencyEER2Durastar: Beats 57%IAIR: Beats 60%

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

    Durastar
    57%
    IAIR
    0%

  • Xcel CC

    Durastar
    46%
    IAIR
    0%

  • CEE Advanced

    Durastar
    3%
    IAIR
    0%

  • ENERGY STAR CC

    Durastar
    60%
    IAIR
    0%

All-around best, ducted 2.5–3 tons

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

Showing Ducted, 2.5–3 tons (27,000–38,999 Btu/h cooling), the most-listed ducted size. Pick yours above. What size is my system?

Durastar

  1. 1DRA3H28M1ADurastar2.5 tons · 28,000 Btu/h · DuctedCold-climate pick, score 66.7Meets CEE 2025, CEE 2026, Xcel CC, ENERGY STAR CC
    Heat kept at 5°F
    89% (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)
    Great
    Cooling efficiency
    20.0 (SEER2)
    Top 10%
    Hot-day cooling
    11.7 (EER2)
    Good
    74.6score / 100Heating 67 · Cooling 83
  2. 2DRA3U28M1BDurastar2.5 tons · 28,000 Btu/h · DuctedCold-climate pick, score 57.4Meets CEE 2025, CEE 2026, Xcel CC
    Heat kept at 5°F
    71% (Capacity at 5°F vs 47°F)
    Good
    Efficiency at 5°F
    1.83 (COP at 5°F)
    Below the middle
    Winter efficiency
    9.2 (HSPF2)
    Good
    Cooling efficiency
    21.0 (SEER2)
    Top 10%
    Hot-day cooling
    11.7 (EER2)
    Good
    71.5score / 100Heating 57 · Cooling 86
  3. 3DRA4H36M1ADurastar3 tons · 36,000 Btu/h · DuctedCold-climate pick, score 63.7Meets none of the standards tracked here
    Heat kept at 5°F
    89% (Capacity at 5°F vs 47°F)
    Great
    Efficiency at 5°F
    1.70 (COP at 5°F)
    Below the middle
    Winter efficiency
    10.0 (HSPF2)
    Top 10%
    Cooling efficiency
    19.0 (SEER2)
    Great
    Hot-day cooling
    11.7 (EER2)
    Good
    71.2score / 100Heating 64 · Cooling 79

IAIR

  1. 1APH3036E100AIAIRAlso listed as IPH3036E100A3 tons · 34,200 Btu/h · DuctedNot a cold-climate pick: keeps 33% of its heat at 5°FMeets none of the standards tracked here
    Heat kept at 5°F
    34% (Capacity at 5°F vs 47°F)
    Below the middle
    Efficiency at 5°F
    1.40 (COP at 5°F)
    Below the middle
    Winter efficiency
    6.7 (HSPF2)
    Below the middle
    Cooling efficiency
    13.4 (SEER2)
    Below the middle
    Hot-day cooling
    11.2 (EER2)
    Good
    17.3score / 100Heating 4 · Cooling 31
  2. 2APH3030E100AIAIRAlso listed as IPH3030E100A2.5 tons · 28,200 Btu/h · DuctedNot a cold-climate pick: keeps 35% of its heat at 5°FMeets none of the standards tracked here
    Heat kept at 5°F
    35% (Capacity at 5°F vs 47°F)
    Below the middle
    Efficiency at 5°F
    1.40 (COP at 5°F)
    Below the middle
    Winter efficiency
    6.7 (HSPF2)
    Below the middle
    Cooling efficiency
    13.4 (SEER2)
    Below the middle
    Hot-day cooling
    11.0 (EER2)
    Below the middle
    15.2score / 100Heating 4 · Cooling 26

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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