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ACC vs COMFORMATIC: heat pump ratings compared

Against heat pumps of the same size and type, a typical ACC model beats 55% and a typical COMFORMATIC model 44%. ACC rates higher overall.

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

ACC

55%

of similar heat pumps beaten by its typical model

About average

4 models listed

COMFORMATIC

44%

of similar heat pumps beaten by its typical model

Below average

4 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°FACC: Beats 67%COMFORMATIC: Beats 37%
  • Heating power kept at 5°FCapacity at 5°F vs 47°FACC: Beats 77%COMFORMATIC: Beats 64%
  • Winter-long heating efficiencyHSPF2ACC: Beats 55%COMFORMATIC: Beats 42%
  • Summer-long cooling efficiencySEER2ACC: Beats 32%COMFORMATIC: Beats 44%
  • Hot-day cooling efficiencyEER2ACC: Beats 12%COMFORMATIC: Beats 39%

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

    ACC
    0%
    COMFORMATIC
    50%

  • Xcel CC

    ACC
    0%
    COMFORMATIC
    50%

  • CEE Advanced

    ACC
    0%
    COMFORMATIC
    0%

  • ENERGY STAR CC

    ACC
    0%
    COMFORMATIC
    50%

Top cold-climate picks, ducted 2.5–3 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, 2.5–3 tons (27,000–38,999 Btu/h cooling). What size is my system?

ACC

None of ACC’s ducted, 2.5–3 tons models qualifies.

COMFORMATIC

No ducted, 2.5–3 tons model from COMFORMATIC.

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.

Open the advanced view