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Brothers vs TKS: heat pump ratings compared

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

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

Brothers

—

of similar heat pumps beaten by its typical model

Not enough rated models

4 models listed

TKS

31%

of similar heat pumps beaten by its typical model

Well below 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 ratedTKS: Beats 23%
  • Heating power kept at 5°FCapacity at 5°F vs 47°FBrothers: Not ratedTKS: Beats 43%
  • Winter-long heating efficiencyHSPF2Brothers: Beats 21%TKS: Beats 16%
  • Summer-long cooling efficiencySEER2Brothers: Beats 18%TKS: Beats 35%
  • Hot-day cooling efficiencyEER2Brothers: Beats 53%TKS: Beats 36%

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%
    TKS
    75%

  • Xcel CC

    Brothers
    0%
    TKS
    100%

  • CEE Advanced

    Brothers
    0%
    TKS
    0%

  • ENERGY STAR CC

    Brothers
    0%
    TKS
    0%

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

Brothers

No ductless, 2.5–3 tons model from Brothers.

TKS

  1. 1TWSG-3019SR32Owith ductless indoor unit TWSG-3019SR32ITKS2.5 tons · 30,000 Btu/h · DuctlessKeeps 77% of its heat at 5°FMeets CEE 2025, CEE 2026, Xcel CC
    Heat kept at 5°F
    77% (Capacity at 5°F vs 47°F)
    Good
    Efficiency at 5°F
    1.80 (COP at 5°F)
    Below the middle
    Seasonal efficiency
    9.0 (HSPF2)
    Below the middle
    28.4score / 100
  2. 2TWSG-3619SR32Owith ductless indoor unit TWSG-3619SR32ITKS3 tons · 33,600 Btu/h · DuctlessKeeps 72% of its heat at 5°FMeets CEE 2025, CEE 2026, Xcel CC
    Heat kept at 5°F
    72% (Capacity at 5°F vs 47°F)
    Below the middle
    Efficiency at 5°F
    1.80 (COP at 5°F)
    Below the middle
    Seasonal efficiency
    8.5 (HSPF2)
    Below the middle
    22.3score / 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