WaterFurnace NVZ042*1vsWaterFurnace W7SZ042BV1**F
Side-by-side geothermal heat pump comparison
WaterFurnace NVZ042*1
EER
30.3–40.1BTU/Wh
COP
4.30–5
Refrigerant
R-410A
Rated Across
2loop types
WaterFurnace W7SZ042BV1**F
EER
30.1–41.4BTU/Wh
COP
4.60–5.20
Refrigerant
Other
Rated Across
2loop types
Key differences
WaterFurnace W7SZ042BV1**F is 3% more efficient at 41.4 BTU/Wh versus 40.1 BTU/Wh for the WaterFurnace NVZ042*1. The WaterFurnace W7SZ042BV1**F is larger at 41.4 BTU/Wh versus 40.1 BTU/Wh.
Efficiency
| Spec | WaterFurnace | WaterFurnace |
|---|---|---|
| EER (best configuration)(BTU/Wh) | 40.1 | 41.4 |
| EER (worst configuration)(BTU/Wh) | 30.3 | 30.1 |
| COP (best configuration) | 5 | 5.20 |
| COP (worst configuration) | 4.30 | 4.60 |
Configuration
| Spec | WaterFurnace | WaterFurnace |
|---|---|---|
| Loop Types Rated | 2 | 2 |
| Total Configurations Rated | 2 | 2 |
| Model Name | 7 Series | 7 SERIES SPLIT |
| Refrigerant | R-410A | Other |