Enertech EVS015*vsWaterFurnace NVZ050*1
Side-by-side geothermal heat pump comparison
Enertech EVS015*
EER
24.1–35.1BTU/Wh
COP
4.30–5.40
Refrigerant
Other
Rated Across
2loop types
WaterFurnace NVZ050*1
EER
26.3–35BTU/Wh
COP
4.10–4.80
Refrigerant
R-410A
Rated Across
2loop types
Key differences
Both models are closely matched on eer: 35.1 vs 35.0 BTU/Wh. The Enertech EVS015* is larger at 35.1 BTU/Wh versus 35 BTU/Wh.
Efficiency
| Spec | Enertech | WaterFurnace |
|---|---|---|
| EER (best configuration)(BTU/Wh) | 35.1 | 35 |
| EER (worst configuration)(BTU/Wh) | 24.1 | 26.3 |
| COP (best configuration) | 5.40 | 4.80 |
| COP (worst configuration) | 4.30 | 4.10 |
Configuration
| Spec | Enertech | WaterFurnace |
|---|---|---|
| Loop Types Rated | 2 | 2 |
| Total Configurations Rated | 2 | 2 |
| Model Name | VS Series | 7 Series |
| Refrigerant | Other | R-410A |