ASTON 103H070**1vsWATERLESS WG2AH-42D1-CP*-*-*
Side-by-side geothermal heat pump comparison
ASTON 103H070**1
EER
17.1–21.7BTU/Wh
COP
3.60–4.10
Refrigerant
R-410A
Rated Across
2loop types
WATERLESS WG2AH-42D1-CP*-*-*
EER
21.6BTU/Wh
COP
3.80
Refrigerant
Other
Key differences
Both models are closely matched on eer: 21.7 vs 21.6 BTU/Wh. The ASTON 103H070**1 is larger at 21.7 BTU/Wh versus 21.6 BTU/Wh.
Efficiency
| Spec | ASTON | WATERLESS |
|---|---|---|
| EER (best configuration)(BTU/Wh) | 21.7 | 21.6 |
| EER (worst configuration)(BTU/Wh) | 17.1 | 21.6 |
| COP (best configuration) | 4.10 | 3.80 |
| COP (worst configuration) | 3.60 | 3.80 |
Configuration
| Spec | ASTON | WATERLESS |
|---|---|---|
| Loop Types Rated | 2 | 1 |
| Total Configurations Rated | 2 | 1 |
| Model Name | Aston | WG2AH-42 |
| Refrigerant | R-410A | Other |