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ATK vs Ecoer: heat pump ratings compared

Against heat pumps of the same size and type, a typical ATK model beats 47% and a typical Ecoer model 70%. Ecoer rates higher overall.

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

ATK

47%

of similar heat pumps beaten by its typical model

About average

13 models listed

Ecoer

70%

of similar heat pumps beaten by its typical model

Well above average

13 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°FATK: Beats 51%Ecoer: Beats 74%
  • Heating power kept at 5°FCapacity at 5°F vs 47°FATK: Beats 57%Ecoer: Beats 67%
  • Winter-long heating efficiencyHSPF2ATK: Beats 75%Ecoer: Beats 72%
  • Summer-long cooling efficiencySEER2ATK: Beats 44%Ecoer: Beats 74%
  • Hot-day cooling efficiencyEER2ATK: Beats 20%Ecoer: Beats 66%

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

    ATK
    54%
    Ecoer
    92%

  • Xcel CC

    ATK
    46%
    Ecoer
    100%

  • CEE Advanced

    ATK
    0%
    Ecoer
    0%

  • ENERGY STAR CC

    ATK
    0%
    Ecoer
    46%

Top cold-climate picks, ducted 2 tons

Only units that keep at least 70% of their heat at 5°F, ranked on heat kept, efficiency at 5°F and seasonal efficiency (HSPF2), against units their size.

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

ATK

  1. 1ACI-AUO24SHP-Mwith ducted air handler ACI-AUI24VHEATK2 tons · 24,000 Btu/h · DuctedKeeps 100% of its heat at 5°FMeets CEE 2025, CEE 2026, Xcel CC
    Heat kept at 5°F
    100% (Capacity at 5°F vs 47°F)
    Great
    Efficiency at 5°F
    1.91 (COP at 5°F)
    Below the middle
    Seasonal efficiency
    10.0 (HSPF2)
    Great
    69.5score / 100
  2. 2ACI-SDAUO24SHPwith ducted air handler ACI-SDAUI24VHEATK2 tons · 24,000 Btu/h · DuctedKeeps 72% of its heat at 5°FMeets CEE 2025, CEE 2026, Xcel CC
    Heat kept at 5°F
    72% (Capacity at 5°F vs 47°F)
    Below the middle
    Efficiency at 5°F
    2.20 (COP at 5°F)
    Good
    Seasonal efficiency
    9.8 (HSPF2)
    Great
    67.6score / 100

Ecoer

  1. 1EODA18H-2436Bwith indoor coil D(A,C,E)24C34+TDR and furnace MGH96M060B3AEcoerAlso listed as EODA18H-2436BAA2 tons · 22,800 Btu/h · DuctedKeeps 98% of its heat at 5°FMeets CEE 2025, CEE 2026, Xcel CC
    Heat kept at 5°F
    98% (Capacity at 5°F vs 47°F)
    Great
    Efficiency at 5°F
    2.10 (COP at 5°F)
    Good
    Seasonal efficiency
    8.8 (HSPF2)
    Good
    71.9score / 100
  2. 2EODA19H-2436Awith ducted air handler EAHATN-24BEcoerAlso listed as EODA19H-2436AA2 tons · 24,000 Btu/h · DuctedKeeps 82% of its heat at 5°FMeets CEE 2025, CEE 2026, Xcel CC
    Heat kept at 5°F
    82% (Capacity at 5°F vs 47°F)
    Good
    Efficiency at 5°F
    2.10 (COP at 5°F)
    Good
    Seasonal efficiency
    9.5 (HSPF2)
    Great
    71.4score / 100

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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