KEEN Home vs Wells heat pumps
Measured against models of the same size and duct type, KEEN Home scores higher on 5 of the 6 ratings. KEEN Home has 35 outdoor models, Wells has 37 outdoor models. KEEN Home and Wells have no QMID on file and are not ranked. They share hardware: 44 equipment families appear under both names.
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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.
- KEEN Home
- Wells
- Other ranked manufacturers
Source: AHRI Directory, NEEP · as of
| Rating | KEEN Home | Wells |
|---|---|---|
| Efficiency index | 66% (higher)median — | 63% (higher)median — |
| COP at 5°F | 55%median 2.00 | 64%median 2.10 |
| Capacity retention at 5°F | 73% (higher)median 93% | 61% (higher)median 75% |
| HSPF2 | 77% (higher)median 10.1 | 74% (higher)median 10.0 |
| SEER2 | 67% (higher)median 20.0 | 62% (higher)median 19.4 |
| EER2 | 64% (higher)median 12.0 | 59% (higher)median 12.0 |
| Heating capacity at 5°F | 75% (higher)median 22,600 Btu/h | 62% (higher)median 19,000 Btu/h |
| Outdoor models | 35 | 37 |
| AHRI certifications | 66 | 121 |
Share of models meeting each standard
| Standard | KEEN Home | Wells |
|---|---|---|
| CEE 2025 Tier 1 (Split ASHP) | 91.4%32 models | 86.5%32 models |
| CEE 2026 Tier 1 (Split ASHP) | 91.4%32 models | 83.8%31 models |
| CEE Advanced Tier (Split ASHP) | 5.7%2 models | 2.7%1 models |
| Xcel Energy Colorado cold-climate ASHP (2025) | 94.3%33 models | 81.1%30 models |
| DOE Cold Climate Heat Pump Challenge | 5.7%2 models | 2.7%1 models |
| ENERGY STAR Cold Climate | 88.6%31 models | 83.8%31 models |
Sizes and duct types offered
Models in each peer group, with the efficiency index of those models against the rest of the group.
- KEEN Home
- Wells
- 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 | KEEN Home | Wells |
|---|---|---|
| Ducted, up to 1.5 tons | 4 · index 69% | 9 · index 80% |
| Ducted, 2 tons | 3 · index 63% | 5 · index 73% |
| Ducted, 2.5–3 tons | 6 · index 70% | 7 · index 67% |
| Ducted, 3.5–4.5 tons | 6 · index 75% | 7 · index 63% |
| Ducted, 5 tons and up | 1 · index 63% | 1 · index 63% |
| Non-ducted, up to 1.5 tons | 13 · index 76% | 16 · index 58% |
| Non-ducted, 2 tons | 2 · index 62% | 4 · index 53% |
| Non-ducted, 2.5–3 tons | 4 · index 59% | 4 · index 54% |
| Non-ducted, 3.5–4.5 tons | 5 · index 46% | 3 · index 57% |
| Non-ducted, 5 tons and up | 1 · index 27% | 1 · index 27% |
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 | KEEN HomeCold-climate score, best model | WellsCold-climate score, best model |
|---|---|---|
| Ducted, up to 1.5 tons | 85.5(50 is the typical model of its size class)KEENHYDHP18AAwith ducted air handler KEENULDAH18AA3 of 4 models qualify · AHRI 217596881 | 93.5(50 is the typical model of its size class) (higher)WOS-06PRE/230with ducted air handler WIDL-06MOC/2309 of 9 models qualify · AHRI 215864077 |
| Ducted, 2 tons | 75.8(50 is the typical model of its size class)KEENHYDHP24AAwith ducted air handler KEENULDAH24AA3 of 3 models qualify · AHRI 217596882 | 85.7(50 is the typical model of its size class) (higher)WOS-24PRE/230with ducted air handler WIDH-24MOC/2305 of 5 models qualify · AHRI 215864084 |
| Ducted, 2.5–3 tons | 82.5(50 is the typical model of its size class)KEENHYZHP36AA6 of 6 models qualify · AHRI 217596929 | 82.5(50 is the typical model of its size class)WOM-36HH5/2307 of 7 models qualify · AHRI 215864112 |
| Ducted, 3.5–4.5 tons | 82.7(50 is the typical model of its size class)KEENHYZHP49AA6 of 6 models qualify · AHRI 217596932 | 82.7(50 is the typical model of its size class)WOM-48HH6/2307 of 7 models qualify · AHRI 215864115 |
| Ducted, 5 tons and up | None on this board (0 of 1 models qualify) | None on this board (0 of 1 models qualify) |
| Non-ducted, up to 1.5 tons | 94.4(50 is the typical model of its size class)KEENUMHP06AAwith ductless indoor unit KEENOWAH06AA12 of 13 models qualify · AHRI 217596898 | 94.4(50 is the typical model of its size class)WOS-06PRE/230with ductless indoor unit WI1C-06MOC/23011 of 16 models qualify · AHRI 215864073 |
| Non-ducted, 2 tons | 87.6(50 is the typical model of its size class)KEENUMHP24AAwith ductless indoor unit KEENFCAH24AA2 of 2 models qualify · AHRI 217596903 | 89.4(50 is the typical model of its size class) (higher)WOS-24PRE/230with ductless indoor unit WI4C-24MOC/2304 of 4 models qualify · AHRI 215864072 |
| Non-ducted, 2.5–3 tons | 89.4(50 is the typical model of its size class) (higher)KEENUMHP36AAwith ductless indoor unit KEENFCAH36AA4 of 4 models qualify · AHRI 217596904 | 72.6(50 is the typical model of its size class)WOM-36HH5/2304 of 4 models qualify · AHRI 215864113 |
| Non-ducted, 3.5–4.5 tons | 69.9(50 is the typical model of its size class)KEENHYZHP55AA5 of 5 models qualify · AHRI 217596936 | 69.9(50 is the typical model of its size class)WOM-60HH6/2303 of 3 models qualify · AHRI 215864119 |
| Non-ducted, 5 tons and up | None on this board (0 of 1 models qualify) | None on this board (0 of 1 models qualify) |
All-around best
| Size and duct type | KEEN HomeAll-around score, best model | WellsAll-around score, best model |
|---|---|---|
| Ducted, up to 1.5 tons | 79.3(50 is the typical model of its size class)KEENHYDHP18AAwith ducted air handler KEENULDAH18AA4 of 4 models have all five ratings · AHRI 217596881 | 95.0(50 is the typical model of its size class) (higher)WOS-06PRE/230with ducted air handler WIDL-06MOC/2309 of 9 models have all five ratings · AHRI 215864077 |
| Ducted, 2 tons | 71.7(50 is the typical model of its size class)KEENHYDHP24AAwith ducted air handler KEENULDAH24AA3 of 3 models have all five ratings · AHRI 217596882 | 79.6(50 is the typical model of its size class) (higher)WDHP-2436T-Gwith ducted air handler WDAH-24MOC-G5 of 5 models have all five ratings · AHRI 217048501 |
| Ducted, 2.5–3 tons | 83.6(50 is the typical model of its size class)KEENHYZHP36AA6 of 6 models have all five ratings · AHRI 217596929 | 83.6(50 is the typical model of its size class)WOM-36HH5/2307 of 7 models have all five ratings · AHRI 215864112 |
| Ducted, 3.5–4.5 tons | 85.1(50 is the typical model of its size class)KEENSTZHP48AA6 of 6 models have all five ratings · AHRI 217596917 | 85.1(50 is the typical model of its size class)WOM-48RH6/2307 of 7 models have all five ratings · AHRI 215864100 |
| Ducted, 5 tons and up | 62.5(50 is the typical model of its size class)KEENSTZHP60AA1 of 1 models have all five ratings · AHRI 217596920 | 62.5(50 is the typical model of its size class)WOM-60RH6/2301 of 1 models have all five ratings · AHRI 215864103 |
| Non-ducted, up to 1.5 tons | 93.4(50 is the typical model of its size class)KEENHYMHP06AAwith ductless indoor unit KEENHYMAH612AAlso listed as KEENHYMHP09AA, KEENHYMHP12AA12 of 13 models have all five ratings · AHRI 217596895 | 93.8(50 is the typical model of its size class) (higher)WOS-06PRE/230with ductless indoor unit WIHW-06MOC/23016 of 16 models have all five ratings · AHRI 215864044 |
| Non-ducted, 2 tons | 67.1(50 is the typical model of its size class)KEENUMHP24AAwith ductless indoor unit KEENFCAH24AA2 of 2 models have all five ratings · AHRI 217596903 | 74.3(50 is the typical model of its size class) (higher)WOS-24QUA/230with ductless indoor unit WIHW-24MOC/2304 of 4 models have all five ratings · AHRI 215864043 |
| Non-ducted, 2.5–3 tons | 66.3(50 is the typical model of its size class)KEENHYZHP36AA4 of 4 models have all five ratings · AHRI 217596928 | 66.3(50 is the typical model of its size class)WOM-36HH5/2304 of 4 models have all five ratings · AHRI 215864111 |
| Non-ducted, 3.5–4.5 tons | 62.6(50 is the typical model of its size class)KEENHYZHP55AA5 of 5 models have all five ratings · AHRI 217596934 | 62.6(50 is the typical model of its size class)WOM-60HH6/2303 of 3 models have all five ratings · AHRI 215864117 |
| Non-ducted, 5 tons and up | 32.5(50 is the typical model of its size class)KEENSTZHP60AA1 of 1 models have all five ratings · AHRI 217596919 | 32.5(50 is the typical model of its size class)WOM-60RH6/2301 of 1 models have all five ratings · AHRI 215864102 |
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 | KEEN Home | Wells |
|---|---|---|
| COP at 5°F | beats 97% · 2.40KEENUMHP06AANon-ducted, up to 1.5 tons | beats 99% · 2.51WOS-12QUA/230Non-ducted, up to 1.5 tons |
| Capacity retention at 5°F | beats 100% · 150%KEENHYMHP06AAAlso listed as KEENHYMHP09AA, KEENHYMHP12AANon-ducted, up to 1.5 tons | beats 98% · 126%WOS-09PRE/230Non-ducted, up to 1.5 tons |
| HSPF2 | beats 100% · 15.6KEENHYMHP06AAAlso listed as KEENHYMHP09AA, KEENHYMHP12AANon-ducted, up to 1.5 tons | beats 99% · 11.0WOM-48HH6/230Ducted, 3.5–4.5 tons |
| SEER2 | beats 100% · 35.0KEENHYMHP06AAAlso listed as KEENHYMHP09AA, KEENHYMHP12AANon-ducted, up to 1.5 tons | beats 96% · 20.4WOM-48RH6/230Ducted, 3.5–4.5 tons |
| EER2 | beats 99% · 17.4KEENHYMHP06AAAlso listed as KEENHYMHP09AA, KEENHYMHP12AANon-ducted, up to 1.5 tons | beats 99% · 14.4WOS-06PRE/230Ducted, up to 1.5 tons |
| Heating capacity at 5°F | beats 99% · 22,600 Btu/hKEENHYMHP18AANon-ducted, up to 1.5 tons | beats 97% · 39,000 Btu/hWDHP-36HHDucted, 2.5–3 tons |