GeoStar / GEOTHERMAL HEAT PUMP
103J036**1
Aston · EPA record 3845584
Source checked Sep 21, 2026
Performance & equipment details
Values below belong to EPA record 3845584. 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 | 4.0 |
| Cooling EER · BTU/Wh | 20.4 |
| Equipment / loop type | Closed 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 | 3845584 | EPA Sep 21, 2026 |
| markets | United States, Canada | EPA Sep 21, 2026 |
| brand name | GeoStar | EPA Sep 21, 2026 |
| cop rating | 4.0 | EPA Sep 21, 2026 |
| eer rating | 20.4 | EPA Sep 21, 2026 |
| model name | Aston | EPA Sep 21, 2026 |
| model number | 103J036**1 | EPA Sep 21, 2026 |
| product type | Closed Loop Water-to-Air | EPA Sep 21, 2026 |
| date qualified | 2024-12-11T00:00:00.000 | 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 | 2017-05-01T00:00:00.000 | EPA Sep 21, 2026 |
| energy star model identifier | ES_1036337_103J036**1_12112024110333_01203113888 | EPA Sep 21, 2026 |
| meets most efficient criteria | Yes | EPA Sep 21, 2026 |