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COMFORMATIC vs GE APPLIANCES ZONELINE: heat pump ratings compared

Against heat pumps of the same size and type, a typical COMFORMATIC model beats 41% and a typical GE APPLIANCES ZONELINE model 41%. They are level.

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

COMFORMATIC

41%

of similar heat pumps beaten by its typical model

Below average

6 models listed

GE APPLIANCES ZONELINE

41%

of similar heat pumps beaten by its typical model

Below average

6 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°FCOMFORMATIC: Beats 35%GE APPLIANCES ZONELINE: Beats 32%
  • Heating power kept at 5°FCapacity at 5°F vs 47°FCOMFORMATIC: Beats 39%GE APPLIANCES ZONELINE: Beats 48%
  • Winter-long heating efficiencyHSPF2COMFORMATIC: Beats 21%GE APPLIANCES ZONELINE: Beats 25%
  • Summer-long cooling efficiencySEER2COMFORMATIC: Beats 55%GE APPLIANCES ZONELINE: Beats 49%
  • Hot-day cooling efficiencyEER2COMFORMATIC: Beats 44%GE APPLIANCES ZONELINE: Beats 46%

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

    COMFORMATIC
    100%
    GE APPLIANCES ZONELINE
    67%

  • Xcel CC

    COMFORMATIC
    83%
    GE APPLIANCES ZONELINE
    67%

  • CEE Advanced

    COMFORMATIC
    0%
    GE APPLIANCES ZONELINE
    0%

  • ENERGY STAR CC

    COMFORMATIC
    0%
    GE APPLIANCES ZONELINE
    0%

Top cold-climate picks, ductless 3.5–4.5 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 Ductless, 3.5–4.5 tons (39,000–56,999 Btu/h cooling). What size is my system?

COMFORMATIC

No ductless, 3.5–4.5 tons model from COMFORMATIC.

GE APPLIANCES ZONELINE

No ductless, 3.5–4.5 tons model from GE APPLIANCES ZONELINE.

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