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ADP vs EMI: heat pump ratings compared

Against heat pumps of the same size and type, a typical ADP model beats 49% and a typical EMI model 62%. EMI rates higher overall.

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

ADP

49%

of similar heat pumps beaten by its typical model

About average

15 models listed

EMI

62%

of similar heat pumps beaten by its typical model

Well above average

15 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°FADP: Beats 35%EMI: Beats 56%
  • Heating power kept at 5°FCapacity at 5°F vs 47°FADP: Beats 86%EMI: Beats 63%
  • Winter-long heating efficiencyHSPF2ADP: Beats 51%EMI: Beats 69%
  • Summer-long cooling efficiencySEER2ADP: Beats 37%EMI: Beats 61%
  • Hot-day cooling efficiencyEER2ADP: Beats 43%EMI: 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

    ADP
    27%
    EMI
    87%

  • Xcel CC

    ADP
    87%
    EMI
    73%

  • CEE Advanced

    ADP
    7%
    EMI
    7%

  • ENERGY STAR CC

    ADP
    0%
    EMI
    73%

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). What size is my system?

ADP

  1. 1KUSXA361Awith ducted air handler V36H175P15*+TXV+TDADP3 tons · 34,200 Btu/h · DuctedCold-climate pick, score 54.3Meets CEE 2025, CEE 2026, Xcel CC
    Heat kept at 5°F
    93% (Capacity at 5°F vs 47°F)
    Great
    Efficiency at 5°F
    1.80 (COP at 5°F)
    Below the middle
    Winter efficiency
    8.9 (HSPF2)
    Good
    Cooling efficiency
    16.0 (SEER2)
    Below the middle
    Hot-day cooling
    11.7 (EER2)
    Good
    53.4score / 100Heating 54 · Cooling 52
  2. 2KUSXA301Awith ducted air handler SL6*37+TXVADP2.5 tons · 29,000 Btu/h · DuctedCold-climate pick, score 59.7Meets Xcel CC
    Heat kept at 5°F
    102% (Capacity at 5°F vs 47°F)
    Top 10%
    Efficiency at 5°F
    1.80 (COP at 5°F)
    Below the middle
    Winter efficiency
    8.8 (HSPF2)
    Good
    Cooling efficiency
    15.2 (SEER2)
    Below the middle
    Hot-day cooling
    11.7 (EER2)
    Good
    53.2score / 100Heating 59 · Cooling 48
  3. 3KUSXB361Awith ducted air handler PL36H175P15*+TXV+TDADP3 tons · 34,200 Btu/h · DuctedCold-climate pick, score 54.9Meets Xcel CC
    Heat kept at 5°F
    90% (Capacity at 5°F vs 47°F)
    Great
    Efficiency at 5°F
    1.80 (COP at 5°F)
    Below the middle
    Winter efficiency
    8.5 (HSPF2)
    Good
    Cooling efficiency
    15.2 (SEER2)
    Below the middle
    Hot-day cooling
    11.7 (EER2)
    Good
    49.0score / 100Heating 50 · Cooling 48

EMI

  1. 1EMXMZ436DAEMI3 tons · 36,000 Btu/h · DuctedCold-climate pick, score 82.5Meets 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
    10.4 (HSPF2)
    Top 10%
    Cooling efficiency
    19.4 (SEER2)
    Great
    Hot-day cooling
    12.0 (EER2)
    Great
    83.6score / 100Heating 83 · Cooling 85
  2. 2EMXMZ327DAEMI2.5 tons · 28,000 Btu/h · DuctedCold-climate pick, score 72.7Meets CEE 2025, CEE 2026, Xcel CC, ENERGY STAR CC
    Heat kept at 5°F
    96% (Capacity at 5°F vs 47°F)
    Great
    Efficiency at 5°F
    2.00 (COP at 5°F)
    Good
    Winter efficiency
    9.5 (HSPF2)
    Great
    Cooling efficiency
    19.0 (SEER2)
    Great
    Hot-day cooling
    12.0 (EER2)
    Great
    77.4score / 100Heating 73 · Cooling 82

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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