GeoComfort GBS018*vsTETCO TBT036
Side-by-side geothermal heat pump comparison
GeoComfort GBS018*
EER
21.1–29.8BTU/Wh
COP
3.90–5
Refrigerant
Other
Rated Across
2loop types
TETCO TBT036
EER
23.7–29.9BTU/Wh
COP
4.10–4.80
Refrigerant
R-410A
Rated Across
2loop types
Key differences
Both models are closely matched on eer: 29.8 vs 29.9 BTU/Wh. The TETCO TBT036 is larger at 29.9 BTU/Wh versus 29.8 BTU/Wh.
Efficiency
| Spec | GeoComfort | TETCO |
|---|---|---|
| EER (best configuration)(BTU/Wh) | 29.8 | 29.9 |
| EER (worst configuration)(BTU/Wh) | 21.1 | 23.7 |
| COP (best configuration) | 5 | 4.80 |
| COP (worst configuration) | 3.90 | 4.10 |
Configuration
| Spec | GeoComfort | TETCO |
|---|---|---|
| Loop Types Rated | 2 | 2 |
| Total Configurations Rated | 2 | 4 |
| Model Name | BS Series | BT Series |
| Refrigerant | Other | R-410A |