Tempstar HB018V******1**2vsWATERLESS WG2AH-48D1-CP*-*-*
Side-by-side geothermal heat pump comparison
Tempstar HB018V******1**2
EER
18.5–25.3BTU/Wh
COP
3.70–4.40
Refrigerant
R-410A
Rated Across
2loop types
WATERLESS WG2AH-48D1-CP*-*-*
EER
25.5BTU/Wh
COP
4.30
Refrigerant
Other
Key differences
Both models are closely matched on eer: 25.3 vs 25.5 BTU/Wh. The WATERLESS WG2AH-48D1-CP*-*-* is larger at 25.5 BTU/Wh versus 25.3 BTU/Wh.
Efficiency
| Spec | Tempstar | WATERLESS |
|---|---|---|
| EER (best configuration)(BTU/Wh) | 25.3 | 25.5 |
| EER (worst configuration)(BTU/Wh) | 18.5 | 25.5 |
| COP (best configuration) | 4.40 | 4.30 |
| COP (worst configuration) | 3.70 | 4.30 |
Configuration
| Spec | Tempstar | WATERLESS |
|---|---|---|
| Loop Types Rated | 2 | 1 |
| Total Configurations Rated | 2 | 1 |
| Model Name | HB | WG2AH-48 |
| Refrigerant | R-410A | Other |