ADB vs Brothers heat pumps
Measured against models of the same size and duct type, ADB scores higher on 3 of the 6 ratings. ADB has 4 outdoor models, Brothers has 4 outdoor models. ADB and Brothers 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.
- ADB
- Brothers
- Other ranked manufacturers
Source: AHRI Directory, NEEP · as of
| Rating | ADB | Brothers |
|---|---|---|
| Efficiency index | 63%median — | —median — |
| COP at 5°F | 32%median 1.80 | —median — |
| Capacity retention at 5°F | 63%median 83% | —median — |
| HSPF2 | 67% (higher)median 10.0 | 21% (higher)median 7.5 |
| SEER2 | 84% (higher)median 24.5 | 18% (higher)median 14.3 |
| EER2 | 61% (higher)median 12.5 | 53% (higher)median 11.7 |
| Heating capacity at 5°F | 59%median 12,500 Btu/h | —median — |
| Outdoor models | 4 | 4 |
| AHRI certifications | 4 | 10 |
Share of models meeting each standard
| Standard | ADB | Brothers |
|---|---|---|
| CEE 2025 Tier 1 (Split ASHP) | 100%4 models | 0%0 models |
| CEE 2026 Tier 1 (Split ASHP) | 100%4 models | 0%0 models |
| CEE Advanced Tier (Split ASHP) | 0%0 models | 0%0 models |
| Xcel Energy Colorado cold-climate ASHP (2025) | 100%4 models | 0%0 models |
| DOE Cold Climate Heat Pump Challenge | 0%0 models | 0%0 models |
| ENERGY STAR Cold Climate | 100%4 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.
- ADB
- Brothers
- 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 | ADB | Brothers |
|---|---|---|
| Ducted, up to 1.5 tons | None | 1 · index — |
| Ducted, 2 tons | None | 2 · index — |
| Ducted, 2.5–3 tons | None | 1 · index — |
| Non-ducted, up to 1.5 tons | 3 · index 63% | None |
| Non-ducted, 2 tons | 1 · index 65% | 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
| Size and duct type | ADBCold-climate score, best model | BrothersCold-climate score, best model |
|---|---|---|
| Ducted, up to 1.5 tons | No models in this size class | None on this board (0 of 1 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 1 models qualify) |
| Non-ducted, up to 1.5 tons | 51.0(50 is the typical model of its size class)DBED-T18IH3A2-E*with ductless indoor unit DBED-T18IH3A2-I3 of 3 models qualify · AHRI 218736482 | No models in this size class |
| Non-ducted, 2 tons | 61.6(50 is the typical model of its size class)DBED-T24IH3A2-E*with ductless indoor unit DBED-T24IH3A2-I1 of 1 models qualify · AHRI 218736483 | No models in this size class |
All-around best
| Size and duct type | ADBAll-around score, best model | BrothersAll-around score, best model |
|---|---|---|
| Ducted, up to 1.5 tons | No models in this size class | None on this board (0 of 1 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 1 models have all five ratings) |
| Non-ducted, up to 1.5 tons | 65.7(50 is the typical model of its size class)DBED-T12IH3A1-E*with ductless indoor unit DBED-T12IH3A1-IAlso listed as DBED-T12IH3A2-E3 of 3 models have all five ratings · AHRI 218736480 | No models in this size class |
| Non-ducted, 2 tons | 64.8(50 is the typical model of its size class)DBED-T24IH3A2-E*with ductless indoor unit DBED-T24IH3A2-I1 of 1 models have all five ratings · AHRI 218736483 | No models in this size class |
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 | ADB | Brothers |
|---|---|---|
| COP at 5°F | beats 71% · 2.10DBED-T24IH3A2-E*Non-ducted, 2 tons | — |
| Capacity retention at 5°F | beats 68% · 83%DBED-T12IH3A1-E*Also listed as DBED-T12IH3A2-ENon-ducted, up to 1.5 tons | — |
| HSPF2 | beats 69% · 10.0DBED-T24IH3A2-E*Non-ducted, 2 tons | beats 27% · 7.5BRO-36HN7Ducted, 2.5–3 tons |
| SEER2 | beats 84% · 25.0DBED-T12IH3A1-E*Also listed as DBED-T12IH3A2-ENon-ducted, up to 1.5 tons | beats 21% · 14.3BRO-18HN7Ducted, up to 1.5 tons |
| EER2 | beats 70% · 13.0DBED-T12IH3A1-E*Also listed as DBED-T12IH3A2-ENon-ducted, up to 1.5 tons | beats 56% · 11.7BRO-36HN7Ducted, 2.5–3 tons |
| Heating capacity at 5°F | beats 86% · 15,000 Btu/hDBED-T18IH3A2-E*Non-ducted, up to 1.5 tons | — |