WaterFurnace / GEOTHERMAL HEAT PUMP
NSZ042J1*
5 Series (Indoor Split) · EPA record 2394630
Source checked Sep 21, 2026
Performance & equipment details
Values below belong to EPA record 2394630. 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 | 3.9 |
| Cooling EER · BTU/Wh | 19.5 |
| 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 | 2394630 | EPA Sep 21, 2026 |
| markets | United States, Canada | EPA Sep 21, 2026 |
| brand name | WaterFurnace | EPA Sep 21, 2026 |
| cop rating | 3.9 | EPA Sep 21, 2026 |
| eer rating | 19.5 | EPA Sep 21, 2026 |
| model name | 5 Series (Indoor Split) | EPA Sep 21, 2026 |
| model number | NSZ042J1* | EPA Sep 21, 2026 |
| product type | Closed Loop Water-to-Air | EPA Sep 21, 2026 |
| date qualified | 2022-04-12T00:00:00.000 | 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_NSZ042J1*_08242021014611_6733800 | EPA Sep 21, 2026 |
| meets most efficient criteria | Yes | EPA Sep 21, 2026 |