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ATK heat pumps: how do their ratings compare?

A typical ATK heat pump beats 47% of similar heat pumps (same size and type), which is about average. ATK has 13 heat pump models in this list.

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

Overall score

47%

of similar heat pumps beaten by its typical model

About average

ATK has no QMID (the manufacturer ID the 25C tax credit needs) on file, so it is not ranked against other brands. Based on 13 models with every rating.

ATK, rating by ratingStrongest on winter-long heating efficiency (beats 75%), weakest on hot-day cooling efficiency (beats 20%).
  • Efficiency on a 5°F dayCOP at 5°FBeats 51%
  • Heating power kept at 5°FCapacity at 5°F vs 47°FBeats 57%
  • Winter-long heating efficiencyHSPF2Beats 75%
  • Summer-long cooling efficiencySEER2Beats 44%
  • Hot-day cooling efficiencyEER2Beats 20%

Average (50%)

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

Want ATK’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.

  • 54%

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

    7 models. All brands: 48%.

    See them

  • 46%

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

    6 models. All brands: 38%.

    See them

  • 0%

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

    None of its models yet. All brands: 1%.

Top ATK cold-climate picks, by size

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

3 of ATK’s 5 models of this size and type qualify.

  1. 1ACI-AUO36SHP-Mwith ducted air handler ACI-CCO36CP21ATK3 tons · 35,000 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
    2.00 (COP at 5°F)
    Good
    Seasonal efficiency
    10.0 (HSPF2)
    Top 10%
    78.6score / 100
  2. 2ACI-CCO36CP21with ducted air handler ACI-CCO36CP21ATK2.5 tons · 30,000 Btu/h · DuctedKeeps 82% of its heat at 5°FMeets Xcel CC
    Heat kept at 5°F
    82% (Capacity at 5°F vs 47°F)
    Good
    Efficiency at 5°F
    1.85 (COP at 5°F)
    Below the middle
    Seasonal efficiency
    9.7 (HSPF2)
    Great
    68.3score / 100
  3. 3ACI-AUO30SHP-Mwith ducted air handler ACI-CCO36CP21ATK2.5 tons · 30,000 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
    1.85 (COP at 5°F)
    Below the middle
    Seasonal efficiency
    9.7 (HSPF2)
    Great
    67.8score / 100

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

Open the advanced view