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COMFORMATIC vs GIWEE: heat pump ratings compared

One of these brands has too few models with every rating for an overall score; see each rating below.

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

COMFORMATIC

44%

of similar heat pumps beaten by its typical model

Below average

4 models listed

GIWEE

—

of similar heat pumps beaten by its typical model

Not enough rated models

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°FCOMFORMATIC: Beats 37%GIWEE: Not rated
  • Heating power kept at 5°FCapacity at 5°F vs 47°FCOMFORMATIC: Beats 64%GIWEE: Not rated
  • Winter-long heating efficiencyHSPF2COMFORMATIC: Beats 42%GIWEE: Beats 44%
  • Summer-long cooling efficiencySEER2COMFORMATIC: Beats 44%GIWEE: Beats 59%
  • Hot-day cooling efficiencyEER2COMFORMATIC: Beats 39%GIWEE: Beats 49%

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
    50%
    GIWEE
    0%

  • Xcel CC

    COMFORMATIC
    50%
    GIWEE
    0%

  • CEE Advanced

    COMFORMATIC
    0%
    GIWEE
    0%

  • ENERGY STAR CC

    COMFORMATIC
    50%
    GIWEE
    0%

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), the most-listed ducted size. Pick yours above. What size is my system?

COMFORMATIC

No ducted, 2.5–3 tons model from COMFORMATIC.

GIWEE

None of GIWEE’s ducted, 2.5–3 tons models has all five ratings.

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