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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 47% and a typical SEA BREEZE+ model 68%. SEA BREEZE+ rates higher overall.

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

Manuflow

47%

of similar heat pumps beaten by its typical model

About average

23 models listed

SEA BREEZE+

68%

of similar heat pumps beaten by its typical model

Well above average

23 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 37%SEA BREEZE+: Beats 65%
  • Heating power kept at 5°FCapacity at 5°F vs 47°FManuflow: Beats 42%SEA BREEZE+: Beats 64%
  • Winter-long heating efficiencyHSPF2Manuflow: Beats 56%SEA BREEZE+: Beats 78%
  • Summer-long cooling efficiencySEER2Manuflow: Beats 58%SEA BREEZE+: Beats 70%
  • Hot-day cooling efficiencyEER2Manuflow: Beats 38%SEA BREEZE+: Beats 65%

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
    83%
    SEA BREEZE+
    91%

  • Xcel CC

    Manuflow
    78%
    SEA BREEZE+
    87%

  • CEE Advanced

    Manuflow
    0%
    SEA BREEZE+
    0%

  • ENERGY STAR CC

    Manuflow
    0%
    SEA BREEZE+
    87%

All-around best, ductless 3.5–4.5 tons

Balances heating (5°F output and efficiency, HSPF2) and cooling (SEER2, EER2), each rating against units their size.

Showing Ductless, 3.5–4.5 tons (39,000–56,999 Btu/h cooling). What size is my system?

Manuflow

  1. 1TFM5G42CHAIR454BManuflow3.5 tons · 42,000 Btu/h · DuctlessCold-climate pick, score 31.2Meets CEE 2025, CEE 2026, Xcel CC
    Heat kept at 5°F
    71% (Capacity at 5°F vs 47°F)
    Below the middle
    Efficiency at 5°F
    2.00 (COP at 5°F)
    Below the middle
    Winter efficiency
    10.0 (HSPF2)
    Below the middle
    Cooling efficiency
    22.0 (SEER2)
    Good
    Hot-day cooling
    11.2 (EER2)
    Below the middle
    42.4score / 100Heating 31 · Cooling 54

SEA BREEZE+

  1. 1HMZ48H525ZMOSEA BREEZE+4 tons · 47,000 Btu/h · DuctlessCold-climate pick, score 73.4Meets CEE 2025, CEE 2026, Xcel CC, ENERGY STAR CC
    Heat kept at 5°F
    96% (Capacity at 5°F vs 47°F)
    Great
    Efficiency at 5°F
    2.00 (COP at 5°F)
    Below the middle
    Winter efficiency
    11.0 (HSPF2)
    Top 10%
    Cooling efficiency
    23.0 (SEER2)
    Great
    Hot-day cooling
    12.0 (EER2)
    Good
    75.6score / 100Heating 72 · Cooling 79
  2. 2MZ48H525ZMOSEA BREEZE+4 tons · 46,000 Btu/h · DuctlessCold-climate pick, score 56.1Meets CEE 2025, CEE 2026, Xcel CC, ENERGY STAR CC
    Heat kept at 5°F
    78% (Capacity at 5°F vs 47°F)
    Below the middle
    Efficiency at 5°F
    2.05 (COP at 5°F)
    Good
    Winter efficiency
    10.5 (HSPF2)
    Good
    Cooling efficiency
    22.2 (SEER2)
    Great
    Hot-day cooling
    12.3 (EER2)
    Great
    68.6score / 100Heating 56 · Cooling 81
  3. 3HMZ55H525ZMOSEA BREEZE+4.5 tons · 51,000 Btu/h · DuctlessCold-climate pick, score 66.0Meets CEE 2025, CEE 2026, Xcel CC, ENERGY STAR CC
    Heat kept at 5°F
    85% (Capacity at 5°F vs 47°F)
    Good
    Efficiency at 5°F
    2.00 (COP at 5°F)
    Below the middle
    Winter efficiency
    10.5 (HSPF2)
    Good
    Cooling efficiency
    22.2 (SEER2)
    Great
    Hot-day cooling
    12.0 (EER2)
    Good
    63.6score / 100Heating 53 · Cooling 74

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.

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