Enerwave vs Hessaire heat pumps

Measured against models of the same size and duct type, Hessaire scores higher on 6 of the 6 ratings. Enerwave has 14 outdoor models, Hessaire has 14 outdoor models. Enerwave and Hessaire 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.

Enerwave and Hessaire 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, Hessaire scores higher on 6 of the 6 ratings.

Enerwave
Hessaire
Other ranked manufacturers

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

Average peer percentile, raw median and rank among ranked manufacturers
Rating	Enerwave	Hessaire
Efficiency index	22%median —	48%median —
COP at 5°F	17%median 1.71	49%median 1.97
Capacity retention at 5°F	31%median 72%	54%median 76%
HSPF2	36%median 9.2	48%median 9.3
SEER2	18%median 13.9	53%median 20.5
EER2	15%median 10.6	40%median 11.5
Heating capacity at 5°F	10%median 5,900 Btu/h	54%median 18,000 Btu/h
Outdoor models	14	14
AHRI certifications	14	20

Share of models meeting each standard

Percent of each manufacturer’s models with a qualifying certification
Standard	Enerwave	Hessaire
CEE 2025 Tier 1 (Split ASHP)	0%0 models	92.9%13 models
CEE 2026 Tier 1 (Split ASHP)	0%0 models	78.6%11 models
CEE Advanced Tier (Split ASHP)	0%0 models	0%0 models
Xcel Energy Colorado cold-climate ASHP (2025)	0%0 models	71.4%10 models
DOE Cold Climate Heat Pump Challenge	0%0 models	0%0 models
ENERGY STAR Cold Climate	0%0 models	57.1%8 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 · 0 groups where both have models

Enerwave
Hessaire
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	Enerwave	Hessaire
Ducted, up to 1.5 tons	14 · index 22%	None
Ducted, 2 tons	None	1 · index 42%
Ducted, 2.5–3 tons	None	1 · index 45%
Ducted, 3.5–4.5 tons	None	2 · index 49%
Non-ducted, up to 1.5 tons	None	7 · index 48%
Non-ducted, 2 tons	None	2 · index 47%
Non-ducted, 2.5–3 tons	None	1 · index 65%

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	EnerwaveCold-climate score, best model	HessaireCold-climate score, best model
Ducted, up to 1.5 tons	43.8(50 is the typical model of its size class)VD3SD18EWAlso listed as VD3SD27EW12 of 14 models qualify · AHRI 218418644	No models in this size class
Ducted, 2 tons	No models in this size class	52.4(50 is the typical model of its size class)HOC24Bwith ducted air handler HAH24B1 of 1 models qualify · AHRI 217490331
Ducted, 2.5–3 tons	No models in this size class	None on this board (0 of 1 models qualify)
Ducted, 3.5–4.5 tons	No models in this size class	60.6(50 is the typical model of its size class)HOC48Bwith ducted air handler HAH48B1 of 2 models qualify · AHRI 217490333
Non-ducted, up to 1.5 tons	No models in this size class	69.5(50 is the typical model of its size class)HM185 of 7 models qualify · AHRI 214728843
Non-ducted, 2 tons	No models in this size class	54.1(50 is the typical model of its size class)H24FB2with ductless indoor unit H24FB2-I2 of 2 models qualify · AHRI 218636280
Non-ducted, 2.5–3 tons	No models in this size class	52.6(50 is the typical model of its size class)HM271 of 1 models qualify · AHRI 214728844

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	EnerwaveAll-around score, best model	HessaireAll-around score, best model
Ducted, up to 1.5 tons	46.5(50 is the typical model of its size class)W2SH06AEW14 of 14 models have all five ratings · AHRI 218418648	No models in this size class
Ducted, 2 tons	No models in this size class	42.2(50 is the typical model of its size class)HOC24Bwith ducted air handler HAH24B1 of 1 models have all five ratings · AHRI 217490331
Ducted, 2.5–3 tons	No models in this size class	44.7(50 is the typical model of its size class)HOC36Bwith ducted air handler HAH36B1 of 1 models have all five ratings · AHRI 217490332
Ducted, 3.5–4.5 tons	No models in this size class	54.9(50 is the typical model of its size class)HOC48Bwith ducted air handler HAH48B2 of 2 models have all five ratings · AHRI 217490333
Non-ducted, up to 1.5 tons	No models in this size class	69.2(50 is the typical model of its size class)HM187 of 7 models have all five ratings · AHRI 214728843
Non-ducted, 2 tons	No models in this size class	61.3(50 is the typical model of its size class)H24FB2with ductless indoor unit H24FB2-I2 of 2 models have all five ratings · AHRI 218636280
Non-ducted, 2.5–3 tons	No models in this size class	65.4(50 is the typical model of its size class)HM271 of 1 models have all five ratings · AHRI 214728844

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	Enerwave	Hessaire
COP at 5°F	beats 79% · 2.16W2SH06AEWDucted, up to 1.5 tons	beats 98% · 2.50H18TT2Non-ducted, up to 1.5 tons
Capacity retention at 5°F	beats 44% · 73%VD3SD18EWAlso listed as VD3SD27EWDucted, up to 1.5 tons	beats 87% · 100%HM18Non-ducted, up to 1.5 tons
HSPF2	beats 97% · 12.6W2SH06AEWDucted, up to 1.5 tons	beats 69% · 9.0HOC48BDucted, 3.5–4.5 tons
SEER2	beats 46% · 15.8W3PHEF8BEWDucted, up to 1.5 tons	beats 76% · 18.0HOC48BDucted, 3.5–4.5 tons
EER2	beats 31% · 11.2W3PHEF8BEWDucted, up to 1.5 tons	beats 80% · 12.9HM27Non-ducted, 2.5–3 tons
Heating capacity at 5°F	beats 22% · 6,500 Btu/hVD3SD18EWAlso listed as VD3SD27EWDucted, up to 1.5 tons	beats 93% · 18,000 Btu/hHM18Non-ducted, up to 1.5 tons

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