Day & Night / GEOTHERMAL HEAT PUMP
HW036W**D/G***1**2
HW · EPA record 3845786
Source checked Sep 21, 2026
Performance & equipment details
Values below belong to EPA record 3845786. 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 | 3.7 |
| Cooling EER · BTU/Wh | 23.4 |
| Equipment / loop type | Open Loop Water-to-Water |
| 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 | 3845786 | EPA Sep 21, 2026 |
| markets | United States, Canada | EPA Sep 21, 2026 |
| brand name | Day & Night | EPA Sep 21, 2026 |
| cop rating | 3.7 | EPA Sep 21, 2026 |
| eer rating | 23.4 | EPA Sep 21, 2026 |
| model name | HW | EPA Sep 21, 2026 |
| model number | HW036W**D/G***1**2 | EPA Sep 21, 2026 |
| product type | Open Loop Water-to-Water | 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 | Carrier Corporation | EPA Sep 21, 2026 |
| date available on market | 2020-03-31T00:00:00.000 | EPA Sep 21, 2026 |
| energy star model identifier | ES_1020846_HW036W**D/G***1**2_12102024145912_02205349638 | EPA Sep 21, 2026 |
| meets most efficient criteria | Yes | EPA Sep 21, 2026 |