W-45-HACW-X-1T-**-**
Nordic · Geothermal Heat Pump
ENERGY STAR CertifiedGeothermal Heat Pumps →
EER
16.4–22.2BTU/Wh
COP
3.10–3.80
Refrigerant
Other
Rated Across
2loop types
ENERGY STAR Most Efficient
Nordic W-45-HACW-X-1T-**-**: EER 22.2 BTU/Wh, around the middle of the range for geothermal heat pumps (category median 24.1 BTU/Wh).
Where this model sits
EER22.2BTU/Wh
16.1median 24.147.6
COP3.80
3.10median 4.405.60
The Nordic W-45-HACW-X-1T-**-** is a 22.2 BTU/Wh geothermal heat pump using Other. At 22.2 BTU/Wh it ranks around the middle of the 2,204 certified geothermal heat pumps models.
Specifications
| Efficiency | |
|---|---|
| EER (best configuration) | 22.2BTU/Wh |
| EER (worst configuration) | 16.4BTU/Wh |
| COP (best configuration) | 3.80 |
| COP (worst configuration) | 3.10 |
| Configuration | |
| Loop Types Rated | 2 |
| Total Configurations Rated | 2 |
| Model Name | W |
| Refrigerant | Other |
All 14 specifications
| Identifiers | |
|---|---|
| Model Number | W-45-HACW-X-1T-**-** |
| ENERGY STAR ID | ES_1082806_W-45-HACW-X-1T-**-**_03202026093006_01218331930 |
| Partner | Maritime Geothermal Ltd. |
| Date Qualified | 2026-04-22 |
| Available From | 2025-11-01 |
| Markets | United States, Canada |
Documentation
We link to manufacturer documentation at its original source rather than rehosting it, so you always get the current revision.