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MANUFLOW vs SEA BREEZE+: heat pump ratings compared

Against heat pumps of the same size and type, a typical MANUFLOW model beats 56% and a typical SEA BREEZE+ model 66%. SEA BREEZE+ rates higher overall.

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

MANUFLOW

56%

of similar heat pumps beaten by its typical model

Above average

34 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°FMANUFLOW: Beats 34%SEA BREEZE+: Beats 46%
  • Heating power kept at 5°FCapacity at 5°F vs 47°FMANUFLOW: Beats 48%SEA BREEZE+: Beats 68%
  • Winter-long heating efficiencyHSPF2MANUFLOW: Beats 28%SEA BREEZE+: Beats 78%
  • Summer-long cooling efficiencySEER2MANUFLOW: Beats 39%SEA BREEZE+: Beats 73%
  • Hot-day cooling efficiencyEER2MANUFLOW: Beats 50%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

    MANUFLOW
    35%
    SEA BREEZE+
    90%

  • Xcel CC

    MANUFLOW
    29%
    SEA BREEZE+
    84%

  • CEE Advanced

    MANUFLOW
    0%
    SEA BREEZE+
    5%

  • ENERGY STAR CC

    MANUFLOW
    0%
    SEA BREEZE+
    90%

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

MANUFLOW

No ducted, 2.5–3 tons model from MANUFLOW.

SEA BREEZE+

  1. 1CSZ36H424ZMOwith ducted air handler AH36H424ZMISEA BREEZE+3 tons · 36,000 Btu/h · DuctedKeeps 98% of its heat at 5°FMeets none of the standards tracked here
    Heat kept at 5°F
    98% (Capacity at 5°F vs 47°F)
    Top 10%
    Efficiency at 5°F
    1.90 (COP at 5°F)
    Good
    Seasonal efficiency
    8.9 (HSPF2)
    Good
    70.6score / 100
  2. 2HMZ28H424ZMOSEA BREEZE+2.5 tons · 28,000 Btu/h · DuctedKeeps 89% of its heat at 5°FMeets CEE 2025, CEE 2026, Xcel CC, ENERGY STAR CC
    Heat kept at 5°F
    89% (Capacity at 5°F vs 47°F)
    Great
    Efficiency at 5°F
    1.80 (COP at 5°F)
    Below the middle
    Seasonal efficiency
    9.5 (HSPF2)
    Great
    66.7score / 100
  3. 3HMZ36H424ZMOSEA BREEZE+3 tons · 36,000 Btu/h · DuctedKeeps 89% of its heat at 5°FMeets none of the standards tracked here
    Heat kept at 5°F
    89% (Capacity at 5°F vs 47°F)
    Great
    Efficiency at 5°F
    1.70 (COP at 5°F)
    Below the middle
    Seasonal efficiency
    10.0 (HSPF2)
    Top 10%
    63.7score / 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