Bosch-Geo TW025-1***-****CBvsViessmann 100-WA-AP1T077056
Side-by-side geothermal heat pump comparison
Bosch-Geo TW025-1***-****CB
EER
19.5–23.8BTU/Wh
COP
3.10–3.70
Refrigerant
R-410A
Rated Across
2loop types
Viessmann 100-WA-AP1T077056
EER
19–23.7BTU/Wh
COP
3.90–4.60
Refrigerant
Other
Rated Across
2loop types
Key differences
Both models are closely matched on eer: 23.8 vs 23.7 BTU/Wh. The Bosch-Geo TW025-1***-****CB is larger at 23.8 BTU/Wh versus 23.7 BTU/Wh.
Efficiency
| Spec | Bosch-Geo | Viessmann |
|---|---|---|
| EER (best configuration)(BTU/Wh) | 23.8 | 23.7 |
| EER (worst configuration)(BTU/Wh) | 19.5 | 19 |
| COP (best configuration) | 3.70 | 4.60 |
| COP (worst configuration) | 3.10 | 3.90 |
Configuration
| Spec | Bosch-Geo | Viessmann |
|---|---|---|
| Loop Types Rated | 2 | 2 |
| Total Configurations Rated | 2 | 2 |
| Model Name | TW | Vitocal 100-WA |
| Refrigerant | R-410A | Other |