WaterFurnace NSW040*1vsWaterFurnace W3A(V/H)036BD1**1
Side-by-side geothermal heat pump comparison
WaterFurnace NSW040*1
EER
17.5–23.4BTU/Wh
COP
3.10–3.90
Refrigerant
R-410A
Rated Across
2loop types
WaterFurnace W3A(V/H)036BD1**1
EER
19.1–23.5BTU/Wh
COP
4–4.50
Refrigerant
Other
Rated Across
2loop types
Key differences
Both models are closely matched on eer: 23.4 vs 23.5 BTU/Wh. The WaterFurnace W3A(V/H)036BD1**1 is larger at 23.5 BTU/Wh versus 23.4 BTU/Wh.
Efficiency
| Spec | WaterFurnace | WaterFurnace |
|---|---|---|
| EER (best configuration)(BTU/Wh) | 23.4 | 23.5 |
| EER (worst configuration)(BTU/Wh) | 17.5 | 19.1 |
| COP (best configuration) | 3.90 | 4.50 |
| COP (worst configuration) | 3.10 | 4 |
Configuration
| Spec | WaterFurnace | WaterFurnace |
|---|---|---|
| Loop Types Rated | 2 | 2 |
| Total Configurations Rated | 2 | 2 |
| Model Name | 5 SERIES | 3 Series |
| Refrigerant | R-410A | Other |