TETCO TZS024*****1BvsWaterFurnace NSW050*1
Side-by-side geothermal heat pump comparison
TETCO TZS024*****1B
EER
21.5BTU/Wh
COP
3.90
Refrigerant
R-410A
WaterFurnace NSW050*1
EER
16.4–21.6BTU/Wh
COP
3.10–3.70
Refrigerant
R-410A
Rated Across
2loop types
Key differences
Both models are closely matched on eer: 21.5 vs 21.6 BTU/Wh. The WaterFurnace NSW050*1 is larger at 21.6 BTU/Wh versus 21.5 BTU/Wh.
Efficiency
| Spec | TETCO | WaterFurnace |
|---|---|---|
| EER (best configuration)(BTU/Wh) | 21.5 | 21.6 |
| EER (worst configuration)(BTU/Wh) | 21.5 | 16.4 |
| COP (best configuration) | 3.90 | 3.70 |
| COP (worst configuration) | 3.90 | 3.10 |
Configuration
| Spec | TETCO | WaterFurnace |
|---|---|---|
| Loop Types Rated | 1 | 2 |
| Total Configurations Rated | 1 | 2 |
| Model Name | Stratus | 5 SERIES |
| Refrigerant | R-410A | R-410A |