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NAPOLEON vs SEA BREEZE+: heat pump ratings compared

Against heat pumps of the same size and type, a typical NAPOLEON model beats 63% 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

NAPOLEON

63%

of similar heat pumps beaten by its typical model

Well above average

19 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°FNAPOLEON: Beats 57%SEA BREEZE+: Beats 46%
  • Heating power kept at 5°FCapacity at 5°F vs 47°FNAPOLEON: Beats 64%SEA BREEZE+: Beats 68%
  • Winter-long heating efficiencyHSPF2NAPOLEON: Beats 65%SEA BREEZE+: Beats 78%
  • Summer-long cooling efficiencySEER2NAPOLEON: Beats 64%SEA BREEZE+: Beats 73%
  • Hot-day cooling efficiencyEER2NAPOLEON: Beats 56%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

    NAPOLEON
    90%
    SEA BREEZE+
    90%

  • Xcel CC

    NAPOLEON
    79%
    SEA BREEZE+
    84%

  • CEE Advanced

    NAPOLEON
    0%
    SEA BREEZE+
    5%

  • ENERGY STAR CC

    NAPOLEON
    68%
    SEA BREEZE+
    90%

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?

NAPOLEON

No ducted, up to 1.5 tons model from NAPOLEON.

SEA BREEZE+

  1. 1HSZ9H424ZMOwith ducted air handler D9H424ZMISEA BREEZE+1 ton · 9,000 Btu/h · DuctedKeeps 108% of its heat at 5°FMeets CEE 2025, CEE 2026, Xcel CC, ENERGY STAR CC
    Heat kept at 5°F
    108% (Capacity at 5°F vs 47°F)
    Top 10%
    Efficiency at 5°F
    1.90 (COP at 5°F)
    Below the middle
    Seasonal efficiency
    12.0 (HSPF2)
    Top 10%
    74.9score / 100
  2. 2SZ9H424ZMOwith ducted air handler D9H424ZMISEA BREEZE+1 ton · 9,000 Btu/h · DuctedKeeps 80% of its heat at 5°FMeets CEE 2025, CEE 2026, Xcel CC, ENERGY STAR CC
    Heat kept at 5°F
    80% (Capacity at 5°F vs 47°F)
    Good
    Efficiency at 5°F
    2.09 (COP at 5°F)
    Good
    Seasonal efficiency
    10.2 (HSPF2)
    Great
    70.4score / 100
  3. 3SZ12H424ZMOwith ducted air handler D12H424ZMISEA BREEZE+1 ton · 11,500 Btu/h · DuctedKeeps 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
    2.26 (COP at 5°F)
    Great
    Seasonal efficiency
    10.3 (HSPF2)
    Great
    67.8score / 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