GeoStar 104J038**1vsYork Y5A(V/H)018BD1**2
Side-by-side geothermal heat pump comparison
GeoStar 104J038**1
EER
23–28.4BTU/Wh
COP
4.10–4.70
Refrigerant
R-410A
Rated Across
2loop types
York Y5A(V/H)018BD1**2
EER
22.3–28.3BTU/Wh
COP
4.50–5.10
Refrigerant
Other
Rated Across
2loop types
Key differences
Both models are closely matched on eer: 28.4 vs 28.3 BTU/Wh. The GeoStar 104J038**1 is larger at 28.4 BTU/Wh versus 28.3 BTU/Wh.
Efficiency
| Spec | GeoStar | York |
|---|---|---|
| EER (best configuration)(BTU/Wh) | 28.4 | 28.3 |
| EER (worst configuration)(BTU/Wh) | 23 | 22.3 |
| COP (best configuration) | 4.70 | 5.10 |
| COP (worst configuration) | 4.10 | 4.50 |
Configuration
| Spec | GeoStar | York |
|---|---|---|
| Loop Types Rated | 2 | 2 |
| Total Configurations Rated | 2 | 2 |
| Model Name | Aston | Affinity YZF |
| Refrigerant | R-410A | Other |