Enertech EZT042*vsYORK BY JOHNSON CONTROLS YAST038**1*J
Side-by-side geothermal heat pump comparison
Enertech EZT042*
EER
22.7–28.5BTU/Wh
COP
3.90–4.50
Refrigerant
Other
Rated Across
2loop types
YORK BY JOHNSON CONTROLS YAST038**1*J
EER
23–28.4BTU/Wh
COP
4.10–4.70
Refrigerant
R-410A
Rated Across
2loop types
Key differences
Both models are closely matched on eer: 28.5 vs 28.4 BTU/Wh. The Enertech EZT042* is larger at 28.5 BTU/Wh versus 28.4 BTU/Wh.
Efficiency
| Spec | Enertech | YORK BY JOHNSON CONTROLS |
|---|---|---|
| EER (best configuration)(BTU/Wh) | 28.5 | 28.4 |
| EER (worst configuration)(BTU/Wh) | 22.7 | 23 |
| COP (best configuration) | 4.50 | 4.70 |
| COP (worst configuration) | 3.90 | 4.10 |
Configuration
| Spec | Enertech | YORK BY JOHNSON CONTROLS |
|---|---|---|
| Loop Types Rated | 2 | 2 |
| Total Configurations Rated | 2 | 4 |
| Model Name | ZT Series | YORK BY JOHNSON CONTROLS |
| Refrigerant | Other | R-410A |