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Bluefin vs HEMA heat pumps

Measured against models of the same size and duct type, Bluefin scores higher on 5 of the 6 ratings. Bluefin has 3 outdoor models, HEMA has 5 outdoor models. Bluefin and HEMA have no QMID on file and are not ranked.

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CompareData as of updated · 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 HEMA 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 5 of the 6 ratings.
  • Bluefin
  • HEMA
  • Other ranked manufacturers
BluefinHEMA

Source: AHRI Directory, NEEP · as of

Average peer percentile, raw median and rank among ranked manufacturers
RatingBluefinHEMA
Efficiency index53% (higher)median —33% (higher)median —
COP at 5°F45% (higher)median 1.9939% (higher)median 1.90
Capacity retention at 5°F26% (higher)median 70%19% (higher)median 70%
HSPF241%median 9.443%median 9.5
SEER273% (higher)median 22.332% (higher)median 17.0
EER262% (higher)median 12.234% (higher)median 9.5
Heating capacity at 5°F34% (higher)median 19,000 Btu/h29% (higher)median 8,900 Btu/h
Outdoor models35
AHRI certifications55

Share of models meeting each standard

Percent of each manufacturer’s models with a qualifying certification
StandardBluefinHEMA
CEE 2025 Tier 1 (Split ASHP)100%3 models40%2 models
CEE 2026 Tier 1 (Split ASHP)100%3 models40%2 models
CEE Advanced Tier (Split ASHP)0%0 models0%0 models
Xcel Energy Colorado cold-climate ASHP (2025)66.7%2 models40%2 models
DOE Cold Climate Heat Pump Challenge0%0 models0%0 models
ENERGY STAR Cold Climate66.7%2 models40%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
  • HEMA
  • All models of the group
Ducted, 2 tons2.001,090 modelsNon-ducted, up to 1.5 tons1.953,455 modelsNon-ducted, 2 tons2.00863 modelsNon-ducted, 2.5–3 tons2.001,106 modelsmedian

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

Source: AHRI Directory · as of

Models per peer group · efficiency index within the group
Size and duct typeBluefinHEMA
Ducted, 2 tons1 · index 65%None
Non-ducted, up to 1.5 tons1 · index 49%4 · index 38%
Non-ducted, 2 tons1 · index 57%1 · index 13%
Non-ducted, 2.5–3 tons1 · index 39%None

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 typeBluefinCold-climate score, best modelHEMACold-climate score, best model
Ducted, 2 tons48.6(50 is the typical model of its size class)BFMS27MZPL-02O1 of 1 models qualify · AHRI 216719248No models in this size class
Non-ducted, up to 1.5 tons39.4(50 is the typical model of its size class)BFMS09BA-02Owith ductless indoor unit BFMS09BA-02I1 of 1 models qualify · AHRI 21671924658.9(50 is the typical model of its size class) (higher)DS-2MS1212HC231with ductless indoor unit DS-2MS1212HE2312 of 4 models qualify · AHRI 217463854
Non-ducted, 2 tons41.1(50 is the typical model of its size class)BFMS27MZPL-02O1 of 1 models qualify · AHRI 216719247None on this board (0 of 1 models qualify)
Non-ducted, 2.5–3 tonsNone on this board (0 of 1 models qualify)No models in this size class

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 typeBluefinAll-around score, best modelHEMAAll-around score, best model
Ducted, 2 tons64.5(50 is the typical model of its size class)BFMS27MZPL-02O1 of 1 models have all five ratings · AHRI 216719248No models in this size class
Non-ducted, up to 1.5 tons49.2(50 is the typical model of its size class)BFMS09BA-02Owith ductless indoor unit BFMS09BA-02I1 of 1 models have all five ratings · AHRI 21671924665.0(50 is the typical model of its size class) (higher)DS-2MS1212HC231with ductless indoor unit DS-2MS1212HE2314 of 4 models have all five ratings · AHRI 217463854
Non-ducted, 2 tons56.7(50 is the typical model of its size class) (higher)BFMS27MZPL-02O1 of 1 models have all five ratings · AHRI 21671924713.4(50 is the typical model of its size class)DS-2MS2421HC170with ductless indoor unit DS-2MS2421HE1701 of 1 models have all five ratings · AHRI 217463852
Non-ducted, 2.5–3 tons39.4(50 is the typical model of its size class)BFMS30BA-02Owith ductless indoor unit BFMS30BA-02I1 of 1 models have all five ratings · AHRI 216719244No models in this size class

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
RatingBluefinHEMA
COP at 5°Fbeats 56% · 1.99BFMS09BA-02ONon-ducted, up to 1.5 tonsbeats 77% · 2.10DS-2MS1212HC231Non-ducted, up to 1.5 tons
Capacity retention at 5°Fbeats 34% · 71%BFMS27MZPL-02ODucted, 2 tonsbeats 34% · 72%DS-2MS1212HC231Non-ducted, up to 1.5 tons
HSPF2beats 54% · 9.0BFMS27MZPL-02ODucted, 2 tonsbeats 64% · 10.0DS-2MS1212HC231Non-ducted, up to 1.5 tons
SEER2beats 94% · 21.0BFMS27MZPL-02ODucted, 2 tonsbeats 64% · 23.0DS-2MS0912HC240Non-ducted, up to 1.5 tons
EER2beats 62% · 12.6BFMS09BA-02ONon-ducted, up to 1.5 tonsbeats 70% · 13.0DS-2MS0912HC240Non-ducted, up to 1.5 tons
Heating capacity at 5°Fbeats 56% · 19,000 Btu/hBFMS27MZPL-02ONon-ducted, 2 tonsbeats 52% · 9,500 Btu/hDS-2MS1821HC170Non-ducted, up to 1.5 tons

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