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Brothers vs SUNCHILLERS: 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

Brothers

—

of similar heat pumps beaten by its typical model

Not enough rated models

8 models listed

SUNCHILLERS

68%

of similar heat pumps beaten by its typical model

Well above average

8 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°FBrothers: Not ratedSUNCHILLERS: Beats 50%
  • Heating power kept at 5°FCapacity at 5°F vs 47°FBrothers: Not ratedSUNCHILLERS: Beats 45%
  • Winter-long heating efficiencyHSPF2Brothers: Beats 24%SUNCHILLERS: Beats 74%
  • Summer-long cooling efficiencySEER2Brothers: Beats 17%SUNCHILLERS: Beats 88%
  • Hot-day cooling efficiencyEER2Brothers: Beats 56%SUNCHILLERS: Beats 71%

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

    Brothers
    0%
    SUNCHILLERS
    100%

  • Xcel CC

    Brothers
    0%
    SUNCHILLERS
    50%

  • CEE Advanced

    Brothers
    0%
    SUNCHILLERS
    0%

  • ENERGY STAR CC

    Brothers
    0%
    SUNCHILLERS
    0%

Top cold-climate picks, ductless 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 Ductless, 2 tons (21,000–26,999 Btu/h cooling). What size is my system?

Brothers

No ductless, 2 tons model from Brothers.

SUNCHILLERS

  1. 124WODU-ULwith ductless indoor unit 24WIDU-ULSUNCHILLERS2 tons · 24,000 Btu/h · DuctlessKeeps 70% of its heat at 5°FMeets CEE 2025, CEE 2026, Xcel CC
    Heat kept at 5°F
    70% (Capacity at 5°F vs 47°F)
    Below the middle
    Efficiency at 5°F
    2.04 (COP at 5°F)
    Good
    Seasonal efficiency
    10.0 (HSPF2)
    Good
    60.4score / 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.

Open the advanced view