GeoStar / GEOTHERMAL HEAT PUMP
101/102K036**1*(1,2,4)*****
Aston · EPA record 3549988
Source checked Sep 21, 2026
Performance & equipment details
Values below belong to EPA record 3549988. Temperature points and test metrics are preserved as reported. Missing and zero values are not substituted with estimates.
| Metric or attribute | Source value |
|---|---|
| Heating COP | 4.9 |
| Cooling EER · BTU/Wh | 28.8 |
| Equipment / loop type | Open Loop Water-to-Air |
| Refrigerant | R-410A |
Specifications & provenance
Every value below is preserved from the source record. Checked Sep 21, 2026. Asterisks and other model wildcards are retained as published.
| Source field | Reported value | Evidence |
|---|---|---|
| pd id | 3549988 | EPA Sep 21, 2026 |
| markets | United States, Canada | EPA Sep 21, 2026 |
| brand name | GeoStar | EPA Sep 21, 2026 |
| cop rating | 4.9 | EPA Sep 21, 2026 |
| eer rating | 28.8 | EPA Sep 21, 2026 |
| model name | Aston | EPA Sep 21, 2026 |
| model number | 101/102K036**1*(1,2,4)***** | EPA Sep 21, 2026 |
| product type | Open Loop Water-to-Air | EPA Sep 21, 2026 |
| date qualified | 2024-06-27T00:00:00.000 | EPA Sep 21, 2026 |
| refrigerant type | R-410A | EPA Sep 21, 2026 |
| energy star partner | WaterFurnace International, Incorporated | EPA Sep 21, 2026 |
| date available on market | 2016-01-04T00:00:00.000 | EPA Sep 21, 2026 |
| energy star model identifier | ES_1036337_101/102K036**1*(1,2,4)*****_08282021013758_2181597 | EPA Sep 21, 2026 |
| meets most efficient criteria | Yes | EPA Sep 21, 2026 |