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.

Breeze33 and ENERGI AIR 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, Breeze33 scores higher on 5 of the 6 ratings.

Breeze33
ENERGI AIR
Other ranked manufacturers

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

Average peer percentile, raw median and rank among ranked manufacturers
Rating	Breeze33	ENERGI AIR
Efficiency index	62% (higher)median — · 5th ranked	39% (higher)median —
COP at 5°F	53% (higher)median 2.00 · 15th ranked	40% (higher)median 1.92
Capacity retention at 5°F	60% (higher)median 79% · 9th ranked	13% (higher)median 46%
HSPF2	68% (higher)median 9.5 · 5th ranked	21% (higher)median 7.0
SEER2	60% (higher)median 17.6 · 8th ranked	31% (higher)median 15.2
EER2	59%median 12.0 · 5th ranked	67%median 11.4
Heating capacity at 5°F	56% (higher)median 19,300 Btu/h · 10th ranked	12% (higher)median 14,800 Btu/h
Outdoor models	45	46
AHRI certifications	1,861	3,367

Share of models meeting each standard

Percent of each manufacturer’s models with a qualifying certification
Standard	Breeze33	ENERGI AIR
CEE 2025 Tier 1 (Split ASHP)	66.7%30 models	6.5%3 models
CEE 2026 Tier 1 (Split ASHP)	64.4%29 models	2.2%1 models
CEE Advanced Tier (Split ASHP)	4.4%2 models	0%0 models
Xcel Energy Colorado cold-climate ASHP (2025)	44.4%20 models	0%0 models
DOE Cold Climate Heat Pump Challenge	4.4%2 models	0%0 models
ENERGY STAR Cold Climate	46.7%21 models	0%0 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 · 4 groups where both have models

Breeze33
ENERGI AIR
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	Breeze33	ENERGI AIR
Ducted, up to 1.5 tons	10 · index 65%	3 · index 39%
Ducted, 2 tons	4 · index 64%	8 · index 37%
Ducted, 2.5–3 tons	11 · index 64%	15 · index 39%
Ducted, 3.5–4.5 tons	9 · index 58%	18 · index 42%
Ducted, 5 tons and up	None	2 · index 36%
Non-ducted, up to 1.5 tons	12 · index 62%	None
Non-ducted, 2 tons	3 · index 56%	None
Non-ducted, 2.5–3 tons	11 · index 61%	None
Non-ducted, 3.5–4.5 tons	3 · index 58%	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 type	Breeze33Cold-climate score, best model	ENERGI AIRCold-climate score, best model
Ducted, up to 1.5 tons	86.9(50 is the typical model of its size class)BZ33-INV18OUT2-Jwith ducted air handler BZ33-WMAHU18-J9 of 10 models qualify · AHRI 214389567	None on this board (0 of 3 models qualify)
Ducted, 2 tons	79.4(50 is the typical model of its size class)HSZ24H424ZMOwith ducted air handler D24H424ZMI3 of 4 models qualify · AHRI 211277594	None on this board (0 of 8 models qualify)
Ducted, 2.5–3 tons	79.9(50 is the typical model of its size class)BZ33-HYP36OUT2-G2-Pwith ducted air handler BZ33-DIDU36-P5 of 11 models qualify · AHRI 215338140	None on this board (0 of 15 models qualify)
Ducted, 3.5–4.5 tons	86.4(50 is the typical model of its size class)BZ33-HYP48OUT2-G2-Pwith ducted air handler BZ33-DIDU48-P4 of 9 models qualify · AHRI 215338141	None on this board (0 of 18 models qualify)
Ducted, 5 tons and up	No models in this size class	None on this board (0 of 2 models qualify)
Non-ducted, up to 1.5 tons	89.3(50 is the typical model of its size class)BZ33-HYP06OUT2-G2-Pwith ductless indoor unit BZ33-HYP06WALL2-G2-P8 of 12 models qualify · AHRI 207862069	No models in this size class
Non-ducted, 2 tons	86.1(50 is the typical model of its size class)BZ33-HYP24OUT2-G2-Pwith ductless indoor unit BZ33-CASS24-G2-PAlso listed as HSZ24H424ZMO2 of 3 models qualify · AHRI 207862078	No models in this size class
Non-ducted, 2.5–3 tons	79.3(50 is the typical model of its size class)BZ33-HYP364Z2-G2-P4 of 11 models qualify · AHRI 207862104	No models in this size class
Non-ducted, 3.5–4.5 tons	76.2(50 is the typical model of its size class)BZ33-HYP485Z2-G2-P2 of 3 models qualify · AHRI 207862107	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 type	Breeze33All-around score, best model	ENERGI AIRAll-around score, best model
Ducted, up to 1.5 tons	85.2(50 is the typical model of its size class) (higher)BZ33-HYP09OUT2-G2-Pwith ducted air handler BZ33-DIDU9-PAlso listed as HSZ9H424ZMO10 of 10 models have all five ratings · AHRI 207862079	40.0(50 is the typical model of its size class)GSZB401810Awith ducted air handler CAPTA36264A+MBVC1201*-1AAlso listed as GSZM401810A3 of 3 models have all five ratings · AHRI 212836127
Ducted, 2 tons	80.1(50 is the typical model of its size class) (higher)HSZ24H424ZMOwith ducted air handler D24H424ZMI4 of 4 models have all five ratings · AHRI 211277594	59.1(50 is the typical model of its size class)GSZC702410A*with ducted air handler AMVT30BP1400A6 of 8 models have all five ratings · AHRI 211942121
Ducted, 2.5–3 tons	75.4(50 is the typical model of its size class) (higher)BZ33-HP273Z2-G2-P11 of 11 models have all five ratings · AHRI 207862090	64.2(50 is the typical model of its size class)GSZC703610Awith ducted air handler CAPTA42304A+MBVC2001*-1A11 of 15 models have all five ratings · AHRI 211942151
Ducted, 3.5–4.5 tons	82.0(50 is the typical model of its size class) (higher)BZ33-HYP485Z2-G2-P8 of 8 models have all five ratings · AHRI 207862108	68.2(50 is the typical model of its size class)GSZC704810Awith ducted air handler CAPT49614A+MBVC2001*-1A10 of 18 models have all five ratings · AHRI 211942189
Ducted, 5 tons and up	67.6(50 is the typical model of its size class) (higher)4HP17L60P-*Awith indoor coil 7EC60CX-0+TDR and furnace 80G2UH110CE201 of 1 models have all five ratings · AHRI 214709273	51.5(50 is the typical model of its size class)GPHH56041A*2 of 2 models have all five ratings · AHRI 211941593
Non-ducted, up to 1.5 tons	92.0(50 is the typical model of its size class)BZ33-HYP06OUT2-G2-Pwith ductless indoor unit BZ33-HYP06WALL2-G2-P12 of 12 models have all five ratings · AHRI 207862069	No models in this size class
Non-ducted, 2 tons	84.3(50 is the typical model of its size class)BZ33-HYP24OUT2-G2-Pwith ductless indoor unit BZ33-HYP24WALL2-G2-P3 of 3 models have all five ratings · AHRI 207862073	No models in this size class
Non-ducted, 2.5–3 tons	82.8(50 is the typical model of its size class)BZ33-HYP364Z2-G2-P8 of 11 models have all five ratings · AHRI 207862104	No models in this size class
Non-ducted, 3.5–4.5 tons	77.9(50 is the typical model of its size class)BZ33-HYP485Z2-G2-P3 of 3 models have all five ratings · AHRI 207862107	No 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
Rating	Breeze33	ENERGI AIR
COP at 5°F	beats 92% · 2.624HP17L60P-**ADucted, 3.5–4.5 tons	beats 94% · 2.51GPHH56041A*Ducted, 5 tons and up
Capacity retention at 5°F	beats 97% · 97%BZ33-HYP48OUT2-G2-PDucted, 3.5–4.5 tons	beats 28% · 42%GPHH56041A*Ducted, 5 tons and up
HSPF2	beats 99% · 10.3BZ33-HYP48OUT2-G2-PDucted, 3.5–4.5 tons	beats 55% · 8.2GSZC704810A*Ducted, 3.5–4.5 tons
SEER2	beats 99% · 24.6BZ33-HP273Z2-G2-PNon-ducted, 2.5–3 tons	beats 81% · 17.2GSZC704810A*Ducted, 3.5–4.5 tons
EER2	beats 100% · 14.04HP17L36P-**ADucted, 2.5–3 tons	beats 92% · 12.5GSZB404810A*Ducted, 3.5–4.5 tons
Heating capacity at 5°F	beats 98% · 41,000 Btu/hBZ33-HYP36OUT2-G2-PNon-ducted, 2.5–3 tons	beats 24% · 23,000 Btu/hGPHH56041A*Ducted, 5 tons and up

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Breeze33 vs ENERGI AIR heat pumps