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DIYCOOL vs Maestrale heat pumps

Measured against models of the same size and duct type, Maestrale scores higher on 5 of the 6 ratings. DIYCOOL has 75 outdoor models, Maestrale has 4 outdoor models. DIYCOOL and Maestrale 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.
DIYCOOL and Maestrale 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.
  • DIYCOOL
  • Maestrale
  • Other ranked manufacturers
DIYCOOLMaestrale

Source: AHRI Directory, NEEP · as of

Average peer percentile, raw median and rank among ranked manufacturers
RatingDIYCOOLMaestrale
Efficiency index54%median —64%median —
COP at 5°F42%median 1.9051%median 1.85
Capacity retention at 5°F62%median 78%65%median 85%
HSPF262% (higher)median 9.455% (higher)median 9.3
SEER259%median 18.969%median 21.5
EER243%median 11.072%median 12.6
Heating capacity at 5°F62%median 22,530 Btu/h71%median 18,650 Btu/h
Outdoor models754
AHRI certifications1704

Share of models meeting each standard

Percent of each manufacturer’s models with a qualifying certification
StandardDIYCOOLMaestrale
CEE 2025 Tier 1 (Split ASHP)65.3%49 models100%4 models
CEE 2026 Tier 1 (Split ASHP)60%45 models100%4 models
CEE Advanced Tier (Split ASHP)1.3%1 models0%0 models
Xcel Energy Colorado cold-climate ASHP (2025)54.7%41 models100%4 models
DOE Cold Climate Heat Pump Challenge1.3%1 models0%0 models
ENERGY STAR Cold Climate45.3%34 models0%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
  • DIYCOOL
  • Maestrale
  • All models of the group
Ducted, up to 1.5 tons2.00884 modelsDucted, 2 tons2.00821 modelsDucted, 2.5–3 tons1.901,614 modelsDucted, 3.5–4.5 tons1.911,492 modelsNon-ducted, up to 1.5 tons1.902,417 modelsNon-ducted, 2 tons1.87611 modelsNon-ducted, 2.5–3 tons1.85975 modelsNon-ducted, 3.5–4.5 tons1.97438 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 typeDIYCOOLMaestrale
Ducted, up to 1.5 tons9 · index 57%None
Ducted, 2 tons8 · index 58%None
Ducted, 2.5–3 tons14 · index 52%None
Ducted, 3.5–4.5 tons16 · index 56%None
Non-ducted, up to 1.5 tons21 · index 55%2 · index 58%
Non-ducted, 2 tons6 · index 51%1 · index 71%
Non-ducted, 2.5–3 tons15 · index 51%1 · index 68%
Non-ducted, 3.5–4.5 tons8 · index 47%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 typeDIYCOOLCold-climate score, best modelMaestraleCold-climate score, best model
Ducted, up to 1.5 tons86.9(50 is the typical model of its size class)ACIQ-18-HPBwith ducted air handler ACIQ-18W-WM8 of 9 models qualify · AHRI 213433267No models in this size class
Ducted, 2 tons79.4(50 is the typical model of its size class)ACIQ-24ZPL-HP230Bwith ducted air handler ACIQ-24CD-HH-MB7 of 7 models qualify · AHRI 207825560No models in this size class
Ducted, 2.5–3 tons79.9(50 is the typical model of its size class)ACIQ-36ZPL-HP230Bwith ducted air handler ACIQ-36CD-HH-MB10 of 15 models qualify · AHRI 210857341No models in this size class
Ducted, 3.5–4.5 tons86.4(50 is the typical model of its size class)ACIQ-48ZPL-HP230Bwith ducted air handler ACIQ-48CD-HH-MB12 of 16 models qualify · AHRI 210857342No models in this size class
Non-ducted, up to 1.5 tons89.3(50 is the typical model of its size class) (higher)ACIQ-06ZPL-HP230Bwith ductless indoor unit ACIQ-06W-HH-MC11 of 21 models qualify · AHRI 21085733455.8(50 is the typical model of its size class)TSA12MAQU1J0X24-Owith ductless indoor unit TSA12MAQU1J0X24-I2 of 2 models qualify · AHRI 216621477
Non-ducted, 2 tons85.4(50 is the typical model of its size class) (higher)ACIQ-24ZPL-HP230Bwith ductless indoor unit ACIQ-24FM-HH-MB3 of 6 models qualify · AHRI 20782556364.4(50 is the typical model of its size class)TSB24MBOR3J0X241 of 1 models qualify · AHRI 217184744
Non-ducted, 2.5–3 tons79.3(50 is the typical model of its size class) (higher)ACIQ-36Z-HH-M4B7 of 15 models qualify · AHRI 20782559461.2(50 is the typical model of its size class)TSB36MBOR4J0X241 of 1 models qualify · AHRI 217184745
Non-ducted, 3.5–4.5 tons76.8(50 is the typical model of its size class)ACIQ-60ZPL-HP230Bwith ductless indoor unit ACIQ-60FM-HH-MB5 of 8 models qualify · AHRI 210857346No 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 typeDIYCOOLAll-around score, best modelMaestraleAll-around score, best model
Ducted, up to 1.5 tons85.2(50 is the typical model of its size class)ACIQ-09ZPL-HP230Bwith ducted air handler ACIQ-09CD-HH-MB9 of 9 models have all five ratings · AHRI 207825557No models in this size class
Ducted, 2 tons80.1(50 is the typical model of its size class)ACIQ-24ZPL-HP230Bwith ducted air handler ACIQ-24CD-HH-MB8 of 8 models have all five ratings · AHRI 207825560No models in this size class
Ducted, 2.5–3 tons75.4(50 is the typical model of its size class)ES-27Z-M3B14 of 14 models have all five ratings · AHRI 210857405No models in this size class
Ducted, 3.5–4.5 tons82.0(50 is the typical model of its size class)ACIQ-48Z-HH-M5B15 of 15 models have all five ratings · AHRI 207825598No models in this size class
Ducted, 5 tons and up41.7(50 is the typical model of its size class)ACIQ-60-EHPBwith ducted air handler ACIQ-60AHB1 of 1 models have all five ratings · AHRI 213433261No models in this size class
Non-ducted, up to 1.5 tons92.0(50 is the typical model of its size class) (higher)ACIQ-06ZPL-HP230Bwith ductless indoor unit ACIQ-06W-HH-MC21 of 21 models have all five ratings · AHRI 21085733463.8(50 is the typical model of its size class)TSA12MAQU1J0X24-Owith ductless indoor unit TSA12MAQU1J0X24-I2 of 2 models have all five ratings · AHRI 216621477
Non-ducted, 2 tons84.3(50 is the typical model of its size class) (higher)ACIQ-24ZPL-HP230Bwith ductless indoor unit ACIQ-24W-HH-MB6 of 6 models have all five ratings · AHRI 20782555371.3(50 is the typical model of its size class)TSB24MBOR3J0X241 of 1 models have all five ratings · AHRI 217184744
Non-ducted, 2.5–3 tons82.8(50 is the typical model of its size class) (higher)ACIQ-36Z-HH-M4B13 of 15 models have all five ratings · AHRI 20782559468.1(50 is the typical model of its size class)TSB36MBOR4J0X241 of 1 models have all five ratings · AHRI 217184745
Non-ducted, 3.5–4.5 tons77.9(50 is the typical model of its size class)ACIQ-48Z-HH-M5B8 of 8 models have all five ratings · AHRI 207825597No 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
RatingDIYCOOLMaestrale
COP at 5°Fbeats 91% · 2.21ACIQ-24ZPL-HP230BNon-ducted, 2 tonsbeats 70% · 2.05TSA12MAQU1J0X24-ONon-ducted, up to 1.5 tons
Capacity retention at 5°Fbeats 99% · 144%SC-09ZPL-HP230Non-ducted, up to 1.5 tonsbeats 91% · 100%TSB36MBOR4J0X24Non-ducted, 2.5–3 tons
HSPF2beats 99% · 10.3ACIQ-48ZPL-HP230BDucted, 3.5–4.5 tonsbeats 57% · 9.5TSA12MAQU1J0X24-ONon-ducted, up to 1.5 tons
SEER2beats 99% · 24.6ES-27Z-M3BNon-ducted, 2.5–3 tonsbeats 85% · 22.0TSB24MBOR3J0X24Non-ducted, 2 tons
EER2beats 99% · 16.6SC-09ZPL-HP230Non-ducted, up to 1.5 tonsbeats 84% · 12.5TSB36MBOR4J0X24Non-ducted, 2.5–3 tons
Heating capacity at 5°Fbeats 99% · 56,500 Btu/hACIQ-60ZPL-HP230BNon-ducted, 3.5–4.5 tonsbeats 89% · 36,000 Btu/hTSB36MBOR4J0X24Non-ducted, 2.5–3 tons

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