Maestrale vs ZENAIRE heat pumps

Measured against models of the same size and duct type, Maestrale scores higher on 5 of the 6 ratings. Maestrale has 24 outdoor models, ZENAIRE has 24 outdoor models. Maestrale and ZENAIRE 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.

Maestrale and ZENAIRE 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, Maestrale scores higher on 5 of the 6 ratings.

Maestrale
ZENAIRE
Other ranked manufacturers

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

Average peer percentile, raw median and rank among ranked manufacturers
Rating	Maestrale	ZENAIRE
Efficiency index	64% (higher)median —	17% (higher)median —
COP at 5°F	29%median 1.80	73%median 2.08
Capacity retention at 5°F	72% (higher)median 96%	0% (higher)median 20%
HSPF2	71% (higher)median 10.3	18% (higher)median 7.5
SEER2	79% (higher)median 23.8	17% (higher)median 14.3
EER2	61% (higher)median 12.5	37% (higher)median 11.2
Heating capacity at 5°F	62% (higher)median 17,800 Btu/h	1% (higher)median 4,200 Btu/h
Outdoor models	24	24
AHRI certifications	24	48

Share of models meeting each standard

Percent of each manufacturer’s models with a qualifying certification
Standard	Maestrale	ZENAIRE
CEE 2025 Tier 1 (Split ASHP)	100%24 models	0%0 models
CEE 2026 Tier 1 (Split ASHP)	100%24 models	0%0 models
CEE Advanced Tier (Split ASHP)	0%0 models	0%0 models
Xcel Energy Colorado cold-climate ASHP (2025)	100%24 models	0%0 models
DOE Cold Climate Heat Pump Challenge	0%0 models	0%0 models
ENERGY STAR Cold Climate	33.3%8 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 · 3 groups where both have models

Maestrale
ZENAIRE
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	Maestrale	ZENAIRE
Ducted, up to 1.5 tons	None	2 · index —
Ducted, 2 tons	None	2 · index —
Ducted, 2.5–3 tons	None	4 · index —
Ducted, 3.5–4.5 tons	None	6 · index —
Non-ducted, up to 1.5 tons	14 · index 71%	6 · index 17%
Non-ducted, 2 tons	4 · index 56%	2 · index —
Non-ducted, 2.5–3 tons	4 · index 58%	2 · index —
Non-ducted, 3.5–4.5 tons	2 · index 42%	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	MaestraleCold-climate score, best model	ZENAIRECold-climate score, best model
Ducted, up to 1.5 tons	No models in this size class	None on this board (0 of 2 models qualify)
Ducted, 2 tons	No models in this size class	None on this board (0 of 2 models qualify)
Ducted, 2.5–3 tons	No models in this size class	None on this board (0 of 4 models qualify)
Ducted, 3.5–4.5 tons	No models in this size class	None on this board (0 of 6 models qualify)
Non-ducted, up to 1.5 tons	68.6(50 is the typical model of its size class)TSB20MBOR2J0X24Also listed as TSB20MBOR2J0X2414 of 14 models qualify · AHRI 218331913	None on this board (0 of 6 models qualify)
Non-ducted, 2 tons	58.0(50 is the typical model of its size class)TSA24MAQU1J0X24-Owith ductless indoor unit TSA24MAQU1J0X24-IAlso listed as TSA24MAQU1JOX24-0, TSA24MAQU1J0X24-0, TSA24MAQU1J0X24-O4 of 4 models qualify · AHRI 218331912	None on this board (0 of 2 models qualify)
Non-ducted, 2.5–3 tons	57.5(50 is the typical model of its size class)TSB24MBOR3J0X24*Also listed as TSB24MBOR3J0X244 of 4 models qualify · AHRI 218331928	None on this board (0 of 2 models qualify)
Non-ducted, 3.5–4.5 tons	31.2(50 is the typical model of its size class)TSB45MBOR4J0X24Also listed as TSB45MBOR4J0X242 of 2 models qualify · AHRI 218331914	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	MaestraleAll-around score, best model	ZENAIREAll-around score, best model
Ducted, up to 1.5 tons	No models in this size class	None on this board (0 of 2 models have all five ratings)
Ducted, 2 tons	No models in this size class	None on this board (0 of 2 models have all five ratings)
Ducted, 2.5–3 tons	No models in this size class	None on this board (0 of 4 models have all five ratings)
Ducted, 3.5–4.5 tons	No models in this size class	None on this board (0 of 6 models have all five ratings)
Non-ducted, up to 1.5 tons	76.2(50 is the typical model of its size class) (higher)TSA09MAQU1J0X24-Owith ductless indoor unit TSA09MAQU1J0X24-IAlso listed as TSA09MAQU1JOX24-O, TSA09MAQU1J0X24-O14 of 14 models have all five ratings · AHRI 218331911	16.5(50 is the typical model of its size class)DHP12BC17Qwith ductless indoor unit DHP 12BE17Q1 of 6 models have all five ratings · AHRI 211164254
Non-ducted, 2 tons	56.1(50 is the typical model of its size class)TSA24MAQU1J0X24-Owith ductless indoor unit TSA24MAQU1J0X24-IAlso listed as TSA24MAQU1JOX24-0, TSA24MAQU1J0X24-0, TSA24MAQU1J0X24-O4 of 4 models have all five ratings · AHRI 218331912	None on this board (0 of 2 models have all five ratings)
Non-ducted, 2.5–3 tons	65.1(50 is the typical model of its size class)TSB24MBOR3J0X24*Also listed as TSB24MBOR3J0X244 of 4 models have all five ratings · AHRI 218331928	None on this board (0 of 2 models have all five ratings)
Non-ducted, 3.5–4.5 tons	42.4(50 is the typical model of its size class)TSB45MBOR4J0X24Also listed as TSB45MBOR4J0X242 of 2 models have all five ratings · AHRI 218331914	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	Maestrale	ZENAIRE
COP at 5°F	beats 63% · 2.00TSB20MBOR2J0X24Also listed as TSB20MBOR2J0X24Non-ducted, up to 1.5 tons	beats 96% · 2.21DHP36BC17QNon-ducted, 2.5–3 tons
Capacity retention at 5°F	beats 92% · 106%TSA09MAQU1J0X24-OAlso listed as TSA09MAQU1JOX24-O, TSA09MAQU1J0X24-ONon-ducted, up to 1.5 tons	beats 0% · 20%DHP12BC17QNon-ducted, up to 1.5 tons
HSPF2	beats 80% · 10.5TSB24MBOR3J0X24*Also listed as TSB24MBOR3J0X24Non-ducted, 2.5–3 tons	beats 29% · 9.0DHP18BC17QNon-ducted, up to 1.5 tons
SEER2	beats 91% · 24.0TSB24MBOR3J0X24*Also listed as TSB24MBOR3J0X24Non-ducted, 2.5–3 tons	beats 30% · 20.0DHP12AC17QNon-ducted, up to 1.5 tons
EER2	beats 87% · 14.5TSA09MAQU1J0X24-OAlso listed as TSA09MAQU1JOX24-O, TSA09MAQU1J0X24-ONon-ducted, up to 1.5 tons	beats 67% · 11.7BHP42B15S2R5Ducted, 3.5–4.5 tons
Heating capacity at 5°F	beats 90% · 17,800 Btu/hTSA18MAQU1J0X24-O*Also listed as TSA18MAQU1JOX24-0, TSA18MAQU1J0X24-0, TSA18MAQU1J0X24-ONon-ducted, up to 1.5 tons	beats 1% · 5,200 Btu/hDHP36BC17QNon-ducted, 2.5–3 tons

More comparisons

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