AIRDACH vs BROCK heat pumps

Measured against models of the same size and duct type, AIRDACH scores higher on 4 of the 6 ratings. AIRDACH has 23 outdoor models, BROCK has 24 outdoor models. AIRDACH and BROCK have no QMID on file and are not ranked.

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CompareData as of Oct 9, 2026updated Oct 10, 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.

AIRDACH and BROCK 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, AIRDACH scores higher on 4 of the 6 ratings.

AIRDACH
BROCK
Other ranked manufacturers

Source: AHRI Directory, NEEP · as of Oct 9, 2026

Average peer percentile, raw median and rank among ranked manufacturers
Rating	AIRDACH	BROCK
Efficiency index	57% (higher)median —	42% (higher)median —
COP at 5°F	47%median 1.91	62%median 2.17
Capacity retention at 5°F	39% (higher)median 67%	14% (higher)median 46%
HSPF2	49% (higher)median 8.1	26% (higher)median 7.5
SEER2	54% (higher)median 16.0	32% (higher)median 14.9
EER2	58%median 11.7	68%median 11.9
Heating capacity at 5°F	41% (higher)median 14,000 Btu/h	16% (higher)median 17,150 Btu/h
Outdoor models	23	24
AHRI certifications	34	2,986

Share of models meeting each standard

Percent of each manufacturer’s models with a qualifying certification
Standard	AIRDACH	BROCK
CEE 2025 Tier 1 (Split ASHP)	39.1%9 models	16.7%4 models
CEE 2026 Tier 1 (Split ASHP)	39.1%9 models	12.5%3 models
CEE Advanced Tier (Split ASHP)	0%0 models	0%0 models
Xcel Energy Colorado cold-climate ASHP (2025)	21.7%5 models	0%0 models
DOE Cold Climate Heat Pump Challenge	0%0 models	0%0 models
ENERGY STAR Cold Climate	0%0 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

AIRDACH
BROCK
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 9, 2026

Models per peer group · efficiency index within the group
Size and duct type	AIRDACH	BROCK
Ducted, up to 1.5 tons	2 · index 57%	1 · index 39%
Ducted, 2 tons	2 · index —	3 · index 38%
Ducted, 2.5–3 tons	5 · index 66%	7 · index 40%
Ducted, 3.5–4.5 tons	6 · index 64%	10 · index 42%
Ducted, 5 tons and up	None	3 · index 65%
Non-ducted, up to 1.5 tons	6 · index 58%	None
Non-ducted, 2 tons	1 · index 56%	None
Non-ducted, 2.5–3 tons	4 · index 50%	None
Non-ducted, 3.5–4.5 tons	1 · index 52%	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	AIRDACHCold-climate score, best model	BROCKCold-climate score, best model
Ducted, up to 1.5 tons	46.5(50 is the typical model of its size class)AMSH1800VM1-D1 of 2 models qualify · AHRI 210474672	None on this board (0 of 1 models qualify)
Ducted, 2 tons	None on this board (0 of 2 models qualify)	None on this board (0 of 3 models qualify)
Ducted, 2.5–3 tons	None on this board (0 of 5 models qualify)	None on this board (0 of 7 models qualify)
Ducted, 3.5–4.5 tons	None on this board (0 of 6 models qualify)	None on this board (0 of 10 models qualify)
Ducted, 5 tons and up	No models in this size class	None on this board (0 of 3 models qualify)
Non-ducted, up to 1.5 tons	70.6(50 is the typical model of its size class)ACSH1823VM2-Dwith ductless indoor unit AIWH1800VM2-D3 of 6 models qualify · AHRI 209948207	No models in this size class
Non-ducted, 2 tons	None on this board (0 of 1 models qualify)	No models in this size class
Non-ducted, 2.5–3 tons	50.1(50 is the typical model of its size class)AMSH2700VM1-D1 of 4 models qualify · AHRI 210474674	No models in this size class
Non-ducted, 3.5–4.5 tons	39.4(50 is the typical model of its size class)AMSH4800VM1-D1 of 1 models qualify · AHRI 210474680	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	AIRDACHAll-around score, best model	BROCKAll-around score, best model
Ducted, up to 1.5 tons	56.7(50 is the typical model of its size class) (higher)AMSH1800VM1-D1 of 2 models have all five ratings · AHRI 210474672	41.0(50 is the typical model of its size class)PH5SAN418*AAwith indoor coil CAP**2517AL and furnace PG80ESUA36040B1 of 1 models have all five ratings · AHRI 211276012
Ducted, 2 tons	None on this board (0 of 2 models have all five ratings)	62.2(50 is the typical model of its size class)PH7TAN424*AAwith indoor coil CAP**3721AL and furnace PG80VTLB60090C3 of 3 models have all five ratings · AHRI 213169195
Ducted, 2.5–3 tons	75.5(50 is the typical model of its size class) (higher)AMSH2700VM1-D2 of 5 models have all five ratings · AHRI 210474675	66.4(50 is the typical model of its size class)PH7TAN436*AAwith ducted air handler PF4TNBD60L5 of 7 models have all five ratings · AHRI 213925458
Ducted, 3.5–4.5 tons	63.5(50 is the typical model of its size class)AMSH4800VM1-D1 of 6 models have all five ratings · AHRI 210474681	72.2(50 is the typical model of its size class) (higher)PH7TAN448*AAwith ducted air handler PF4TNBD60L8 of 10 models have all five ratings · AHRI 213280649
Ducted, 5 tons and up	No models in this size class	64.7(50 is the typical model of its size class)PH5SAN460*AAwith ducted air handler PF4TNBD60L1 of 3 models have all five ratings · AHRI 213280500
Non-ducted, up to 1.5 tons	75.9(50 is the typical model of its size class)ACSH1823VM2-Dwith ductless indoor unit AIWH1800VM2-D6 of 6 models have all five ratings · AHRI 209948207	No models in this size class
Non-ducted, 2 tons	56.2(50 is the typical model of its size class)ACSH2421VM2-Dwith ductless indoor unit AIWH2400VM2-D1 of 1 models have all five ratings · AHRI 209948204	No models in this size class
Non-ducted, 2.5–3 tons	67.1(50 is the typical model of its size class)AMSH2700VM1-D3 of 4 models have all five ratings · AHRI 210474674	No models in this size class
Non-ducted, 3.5–4.5 tons	51.7(50 is the typical model of its size class)AMSH4800VM1-D1 of 1 models have all five ratings · AHRI 210474680	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	AIRDACH	BROCK
COP at 5°F	beats 96% · 2.38ACSH1823VM2-DNon-ducted, up to 1.5 tons	beats 90% · 2.34PH7TAN436*AADucted, 2.5–3 tons
Capacity retention at 5°F	beats 67% · 80%ACSH0924VM2-DNon-ducted, up to 1.5 tons	beats 35% · 60%PH5SAN436*AADucted, 2.5–3 tons
HSPF2	beats 95% · 9.7AMSH4800VM1-DDucted, 3.5–4.5 tons	beats 52% · 8.1PH5SAN460*AADucted, 5 tons and up
SEER2	beats 98% · 21.0AMSH2700VM1-DDucted, 2.5–3 tons	beats 82% · 17.5PH7TAN448*AADucted, 3.5–4.5 tons
EER2	beats 85% · 14.0ACSH0924VM2-DNon-ducted, up to 1.5 tons	beats 98% · 13.0PH7TAN448*AADucted, 3.5–4.5 tons
Heating capacity at 5°F	beats 85% · 14,000 Btu/hAMSH1800VM1-DNon-ducted, up to 1.5 tons	beats 39% · 30,200 Btu/hPH7TAN460*AADucted, 3.5–4.5 tons

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