| ENERGY STAR Partner |
| WaterFurnace International, Incorporated |
WFI Industries |
| Brand Name |
| GeoStar |
GeoStar |
| Model Name |
| 5 Series |
5 Series |
| Model Number |
| 166D066A*1 |
166D040**1 |
| Type |
| Open Loop Water-to-Water |
Closed Loop Water-to-Water |
| Date Available On Market |
| February 15, 2019 |
March 1, 2019 |
| Date Qualified |
| April 29, 2022 |
April 12, 2022 |
| Markets |
| United States, Canada |
United States, Canada |
| CB Model Identifier |
| ES_1036337_166D066A*1_04222022135736_3804176 |
ES_1090524_166D040**1_06282021113942_3128555 |
| Meets ENERGY STAR Most Efficient 2024 Criteria |
| Yes |
Yes |
| Product Category |
| Geothermal Heat Pumps |
Geothermal Heat Pumps |
| Date Certified |
| April 29, 2022 |
April 12, 2022 |
| Refrigerant Type |
| R-410A |
R-410A |
