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Bluefin vs SEA BREEZE: heat pump ratings compared

Against heat pumps of the same size and type, a typical Bluefin model beats 53% and a typical SEA BREEZE model 34%. Bluefin rates higher overall.

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

Bluefin

53%

of similar heat pumps beaten by its typical model

About average

3 models listed

SEA BREEZE

34%

of similar heat pumps beaten by its typical model

Well below average

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°FBluefin: Beats 45%SEA BREEZE: Beats 54%
  • Heating power kept at 5°FCapacity at 5°F vs 47°FBluefin: Beats 26%SEA BREEZE: Beats 19%
  • Winter-long heating efficiencyHSPF2Bluefin: Beats 41%SEA BREEZE: Beats 27%
  • Summer-long cooling efficiencySEER2Bluefin: Beats 73%SEA BREEZE: Beats 39%
  • Hot-day cooling efficiencyEER2Bluefin: Beats 62%SEA BREEZE: Beats 30%

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

    Bluefin
    100%
    SEA BREEZE
    50%

  • Xcel CC

    Bluefin
    67%
    SEA BREEZE
    50%

  • CEE Advanced

    Bluefin
    0%
    SEA BREEZE
    0%

  • ENERGY STAR CC

    Bluefin
    67%
    SEA BREEZE
    50%

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?

Bluefin

  1. 1BFMS27MZPL-02OBluefin2 tons · 26,000 Btu/h · DuctlessKeeps 70% of its heat at 5°FMeets CEE 2025, CEE 2026, Xcel CC, ENERGY STAR CC
    Heat kept at 5°F
    70% (Capacity at 5°F vs 47°F)
    Below the middle
    Efficiency at 5°F
    2.00 (COP at 5°F)
    Good
    Seasonal efficiency
    9.5 (HSPF2)
    Below the middle
    41.1score / 100

SEA BREEZE

  1. 124H521ZOMIwith ductless indoor unit 24H521ZIMISEA BREEZE2 tons · 24,000 Btu/h · DuctlessKeeps 71% of its heat at 5°FMeets Xcel CC, ENERGY STAR CC
    Heat kept at 5°F
    71% (Capacity at 5°F vs 47°F)
    Below the middle
    Efficiency at 5°F
    2.11 (COP at 5°F)
    Great
    Seasonal efficiency
    9.0 (HSPF2)
    Below the middle
    45.1score / 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