Bluefin vs SEA BREEZE heat pumps

Measured against models of the same size and duct type, Bluefin scores higher on 6 of the 6 ratings. Bluefin has 9 outdoor models, SEA BREEZE has 9 outdoor models. Bluefin and SEA BREEZE have no QMID on file and are not ranked.

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CompareData as of Oct 11, 2026updated Oct 11, 2026 · sources

Against comparable models

Each cell is the share of same-size, same-type models that the manufacturer’s typical model beats (50% is typical); the higher score is in bold. Raw medians are underneath for context: they depend on which sizes each one makes, so they are not compared.

Bluefin and SEA BREEZE on every ratingPeer scores, 0–100 · grey ticks: every ranked manufacturer · shaded: the middle half of each one’s modelsMeasured against models of the same size and duct type, Bluefin scores higher on 6 of the 6 ratings.

Bluefin
SEA BREEZE
Other ranked manufacturers

Source: AHRI Directory, NEEP · as of Oct 11, 2026

Average peer percentile, raw median and rank among ranked manufacturers
Rating	Bluefin	SEA BREEZE
Efficiency index	73% (higher)median —	40% (higher)median —
COP at 5°F	67% (higher)median 1.99	54% (higher)median 1.93
Capacity retention at 5°F	65% (higher)median 86%	25% (higher)median 62%
HSPF2	76% (higher)median 10.5	32% (higher)median 8.7
SEER2	78% (higher)median 23.1	40% (higher)median 20.8
EER2	77% (higher)median 13.0	37% (higher)median 10.8
Heating capacity at 5°F	57% (higher)median 11,300 Btu/h	24% (higher)median 9,850 Btu/h
Outdoor models	9	9
AHRI certifications	9	9

Share of models meeting each standard

Percent of each manufacturer’s models with a qualifying certification
Standard	Bluefin	SEA BREEZE
CEE 2025 Tier 1 (Split ASHP)	100%9 models	55.6%5 models
CEE 2026 Tier 1 (Split ASHP)	100%9 models	55.6%5 models
CEE Advanced Tier (Split ASHP)	0%0 models	0%0 models
Xcel Energy Colorado cold-climate ASHP (2025)	100%9 models	22.2%2 models
DOE Cold Climate Heat Pump Challenge	0%0 models	0%0 models
ENERGY STAR Cold Climate	88.9%8 models	22.2%2 models

Sizes and duct types offered

Models in each peer group, with the efficiency index of those models against the rest of the group.

Side by side, inside each size and duct typeShape: every model of the group · bars: each manufacturer’s middle half, median dot, 10th–90th line · 2 groups where both have models

Bluefin
SEA BREEZE
All models of the group

Raw ratings are only placed side by side within one size and duct type, where they are comparable.

Source: AHRI Directory · as of Oct 11, 2026

Models per peer group · efficiency index within the group
Size and duct type	Bluefin	SEA BREEZE
Non-ducted, up to 1.5 tons	7 · index 75%	5 · index 41%
Non-ducted, 2 tons	2 · index 69%	1 · index 27%
Non-ducted, 2.5–3 tons	None	3 · index 44%

Cold-climate and all-around picks, size class by size class

Each manufacturer’s best model on each board in every size and duct type, side by side; the higher score is in bold. Both scores are 0–100 against every model of that size class (the line on each bar is 50, the typical model there), so the two compare fairly even when they make different sizes.

Cold-climate picks

Best cold-climate pick per size and duct type (keeps at least 70% of its heat at 5°F). Qualifies when its capacity retention at 5°F (capacity at 5°F as a share of capacity at 47°F) is at least 70% and Capacity retention at 5°F, COP at 5°F, HSPF2 are all rated. Score = the equal-weight mean of its peer percentiles on Capacity retention at 5°F, COP at 5°F, HSPF2 (share of the other models in its peer group it beats, 0–100), all from one certified pairing: in each duct type a model is sold in, its qualifying pairing of that type with the best score; equal scores (one decimal) go to the higher heating capacity at 5°F.
Size and duct type	BluefinCold-climate score, best model	SEA BREEZECold-climate score, best model
Non-ducted, up to 1.5 tons	86.0(50 is the typical model of its size class) (higher)BFMS09PL-01Owith ductless indoor unit BFMS09PL-01I7 of 7 models qualify · AHRI 213769908	56.7(50 is the typical model of its size class)9H421YOMIwith ductless indoor unit 9H421YIMI2 of 5 models qualify · AHRI 208650692
Non-ducted, 2 tons	61.1(50 is the typical model of its size class)BFMS24PR-01Owith ductless indoor unit BFMS24PL-01I2 of 2 models qualify · AHRI 213769902	None on this board (0 of 1 models qualify)
Non-ducted, 2.5–3 tons	No models in this size class	None on this board (0 of 3 models qualify)

All-around best

Best all-around model per size and duct type. Score = 50% heating, the mean of its peer percentiles on COP at 5°F, Capacity retention at 5°F, HSPF2, plus 50% cooling, the mean of its peer percentiles on SEER2 and EER2 (share of the other models in its peer group it beats, 0–100). All five ratings are required; there is no minimum heat kept at 5°F. In each duct type a model is sold in, it is scored on its pairing of that type with the best score; equal scores (one decimal) go to the higher cold-climate score, then the higher heating capacity at 5°F.
Size and duct type	BluefinAll-around score, best model	SEA BREEZEAll-around score, best model
Non-ducted, up to 1.5 tons	86.7(50 is the typical model of its size class) (higher)BFMS09PL-01Owith ductless indoor unit BFMS09PL-01I7 of 7 models have all five ratings · AHRI 213769908	55.7(50 is the typical model of its size class)9H421ZOMIwith ductless indoor unit 9H421ZIMI5 of 5 models have all five ratings · AHRI 208650694
Non-ducted, 2 tons	70.7(50 is the typical model of its size class) (higher)BFMS24PR-01Owith ductless indoor unit BFMS24PL-01I2 of 2 models have all five ratings · AHRI 213769902	27.2(50 is the typical model of its size class)24H421ZOMIwith ductless indoor unit 24H421ZIMI1 of 1 models have all five ratings · AHRI 208650697
Non-ducted, 2.5–3 tons	No models in this size class	53.1(50 is the typical model of its size class)30H421ZOMIwith ductless indoor unit 30H421ZIMI2 of 3 models have all five ratings · AHRI 208650698

All-around board, every manufacturer

Standout model on each rating

Each manufacturer’s model that beats the largest share of comparable models on the rating; the higher share is in bold.

Top model per rating by peer percentile, with its AHRI-certified value and peer group
Rating	Bluefin	SEA BREEZE
COP at 5°F	beats 96% · 2.22BFMS24PL-01ONon-ducted, 2 tons	beats 87% · 2.0136H421ZOMINon-ducted, 2.5–3 tons
Capacity retention at 5°F	beats 76% · 96%BFMS18PR-01ONon-ducted, up to 1.5 tons	beats 39% · 70%9H421YOMINon-ducted, up to 1.5 tons
HSPF2	beats 94% · 11.6BFMS09PL-01ONon-ducted, up to 1.5 tons	beats 53% · 9.49H421ZOMINon-ducted, up to 1.5 tons
SEER2	beats 92% · 26.4BFMS09PR-01ONon-ducted, up to 1.5 tons	beats 65% · 21.030H421ZOMINon-ducted, 2.5–3 tons
EER2	beats 95% · 15.8BFMS09PR-01ONon-ducted, up to 1.5 tons	beats 75% · 12.230H421ZOMINon-ducted, 2.5–3 tons
Heating capacity at 5°F	beats 90% · 17,200 Btu/hBFMS18PR-01ONon-ducted, up to 1.5 tons	beats 63% · 11,700 Btu/h18H421ZOMINon-ducted, up to 1.5 tons

More comparisons

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