BreezeAero vs COMFORT MASTER heat pumps
Measured against models of the same size and duct type, COMFORT MASTER scores higher on 4 of the 6 ratings. BreezeAero has 6 outdoor models, COMFORT MASTER has 6 outdoor models. BreezeAero and COMFORT MASTER 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.
- BreezeAero
- COMFORT MASTER
- Other ranked manufacturers
Source: AHRI Directory, NEEP · as of
| Rating | BreezeAero | COMFORT MASTER |
|---|---|---|
| Efficiency index | 38%median — | 73%median — |
| COP at 5°F | 32%median 1.80 | 84%median 2.16 |
| Capacity retention at 5°F | 42%median 74% | 58%median 79% |
| HSPF2 | 54% (higher)median 9.8 | 50% (higher)median 10.0 |
| SEER2 | 41%median 20.0 | 58%median 24.0 |
| EER2 | 24%median 10.8 | 49%median 12.0 |
| Heating capacity at 5°F | 44% (higher)median 13,000 Btu/h | 42% (higher)median 9,100 Btu/h |
| Outdoor models | 6 | 6 |
| AHRI certifications | 6 | 6 |
Share of models meeting each standard
| Standard | BreezeAero | COMFORT MASTER |
|---|---|---|
| CEE 2025 Tier 1 (Split ASHP) | 66.7%4 models | 66.7%4 models |
| CEE 2026 Tier 1 (Split ASHP) | 66.7%4 models | 66.7%4 models |
| CEE Advanced Tier (Split ASHP) | 0%0 models | 0%0 models |
| Xcel Energy Colorado cold-climate ASHP (2025) | 66.7%4 models | 66.7%4 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.
- BreezeAero
- COMFORT MASTER
- 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
| Size and duct type | BreezeAero | COMFORT MASTER |
|---|---|---|
| Non-ducted, up to 1.5 tons | 4 · index 40% | 3 · index 69% |
| Non-ducted, 2 tons | 1 · index 27% | 1 · index 87% |
| Non-ducted, 2.5–3 tons | 1 · index 39% | 2 · index — |
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
| Size and duct type | BreezeAeroCold-climate score, best model | COMFORT MASTERCold-climate score, best model |
|---|---|---|
| Non-ducted, up to 1.5 tons | 62.1(50 is the typical model of its size class)ACA-2535B3 of 4 models qualify · AHRI 218361441 | 79.3(50 is the typical model of its size class) (higher)CMDI18K-C2-Owith ductless indoor unit CMDI18K-C2-I3 of 3 models qualify · AHRI 217619868 |
| Non-ducted, 2 tons | None on this board (0 of 1 models qualify) | 77.4(50 is the typical model of its size class)CMDI24K-C2-Owith ductless indoor unit CMDI24K-C2-I1 of 1 models qualify · AHRI 217619869 |
| Non-ducted, 2.5–3 tons | 47.6(50 is the typical model of its size class)ACA-2537B1 of 1 models qualify · AHRI 218361442 | None on this board (0 of 2 models qualify) |
All-around best
| Size and duct type | BreezeAeroAll-around score, best model | COMFORT MASTERAll-around score, best model |
|---|---|---|
| Non-ducted, up to 1.5 tons | 62.2(50 is the typical model of its size class)ACA-2535B4 of 4 models have all five ratings · AHRI 218361441 | 83.0(50 is the typical model of its size class) (higher)CMDI18K-C2-Owith ductless indoor unit CMDI18K-C2-I3 of 3 models have all five ratings · AHRI 217619868 |
| Non-ducted, 2 tons | 27.4(50 is the typical model of its size class)ACA-2520Bwith ductless indoor unit ACA-2519B1 of 1 models have all five ratings · AHRI 218361440 | 86.5(50 is the typical model of its size class) (higher)CMDI24K-C2-Owith ductless indoor unit CMDI24K-C2-I1 of 1 models have all five ratings · AHRI 217619869 |
| Non-ducted, 2.5–3 tons | 38.7(50 is the typical model of its size class)ACA-2537B1 of 1 models have all five ratings · AHRI 218361442 | None on this board (0 of 2 models have all five ratings) |
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.
| Rating | BreezeAero | COMFORT MASTER |
|---|---|---|
| COP at 5°F | beats 63% · 2.00ACA-2535BNon-ducted, up to 1.5 tons | beats 96% · 2.21CMBI36K-C2Also listed as CMBI36K-C2-ONon-ducted, 2.5–3 tons |
| Capacity retention at 5°F | beats 61% · 80%ACA-2514BNon-ducted, up to 1.5 tons | beats 73% · 85%CMDI24K-C2-ONon-ducted, 2 tons |
| HSPF2 | beats 64% · 10.0ACA-2516BNon-ducted, up to 1.5 tons | beats 84% · 10.5CMDI24K-C2-ONon-ducted, 2 tons |
| SEER2 | beats 84% · 25.0ACA-2535BNon-ducted, up to 1.5 tons | beats 95% · 25.0CMDI24K-C2-ONon-ducted, 2 tons |
| EER2 | beats 44% · 12.0ACA-2514BNon-ducted, up to 1.5 tons | beats 96% · 14.0CMDI24K-C2-ONon-ducted, 2 tons |
| Heating capacity at 5°F | beats 83% · 14,000 Btu/hACA-2535BNon-ducted, up to 1.5 tons | beats 86% · 15,000 Btu/hCMDI18K-C2-ONon-ducted, up to 1.5 tons |