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Custom Comfort vs SEA BREEZE+: heat pump ratings compared

Against heat pumps of the same size and type, a typical Custom Comfort model beats 65% and a typical SEA BREEZE+ model 66%. SEA BREEZE+ rates slightly higher overall.

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

Custom Comfort

65%

of similar heat pumps beaten by its typical model

Well above average

20 models listed

SEA BREEZE+

66%

of similar heat pumps beaten by its typical model

Well above average

19 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°FCustom Comfort: Beats 50%SEA BREEZE+: Beats 46%
  • Heating power kept at 5°FCapacity at 5°F vs 47°FCustom Comfort: Beats 83%SEA BREEZE+: Beats 68%
  • Winter-long heating efficiencyHSPF2Custom Comfort: Beats 84%SEA BREEZE+: Beats 78%
  • Summer-long cooling efficiencySEER2Custom Comfort: Beats 65%SEA BREEZE+: Beats 73%
  • Hot-day cooling efficiencyEER2Custom Comfort: Beats 51%SEA BREEZE+: Beats 62%

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

    Custom Comfort
    75%
    SEA BREEZE+
    90%

  • Xcel CC

    Custom Comfort
    85%
    SEA BREEZE+
    84%

  • CEE Advanced

    Custom Comfort
    5%
    SEA BREEZE+
    5%

  • ENERGY STAR CC

    Custom Comfort
    100%
    SEA BREEZE+
    90%

Top cold-climate picks, ductless 5 tons and up

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, 5 tons and up (57,000 Btu/h and up cooling). What size is my system?

Custom Comfort

No ductless, 5 tons and up model from Custom Comfort.

SEA BREEZE+

No ductless, 5 tons and up model from SEA BREEZE+.

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