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Brothers vs KeplerX: 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

KeplerX

53%

of similar heat pumps beaten by its typical model

About 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 ratedKeplerX: Beats 49%
  • Heating power kept at 5°FCapacity at 5°F vs 47°FBrothers: Not ratedKeplerX: Beats 78%
  • Winter-long heating efficiencyHSPF2Brothers: Beats 24%KeplerX: Beats 33%
  • Summer-long cooling efficiencySEER2Brothers: Beats 17%KeplerX: Beats 22%
  • Hot-day cooling efficiencyEER2Brothers: Beats 56%KeplerX: Beats 54%

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%
    KeplerX
    0%

  • Xcel CC

    Brothers
    0%
    KeplerX
    0%

  • CEE Advanced

    Brothers
    0%
    KeplerX
    0%

  • ENERGY STAR CC

    Brothers
    0%
    KeplerX
    0%

Top cold-climate picks, ducted up to 1.5 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 Ducted, Up to 1.5 tons (under 21,000 Btu/h cooling). What size is my system?

Brothers

None of Brothers’s ducted, up to 1.5 tons models qualifies.

KeplerX

None of KeplerX’s ducted, up to 1.5 tons models qualifies.

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