| ENERGY STAR Partner |
| WaterFurnace International, Incorporated |
WaterFurnace International, Incorporated |
| Brand Name |
| GeoStar |
GeoStar |
| Model Name |
| Aston |
Envision NDW |
| Model Number |
| 101/102J072**1*(1,4)***** |
GTW120*1 |
| Type |
| Open Loop Water-to-Air |
Open Loop Water-to-Water |
| Date Available On Market |
| January 4, 2016 |
January 7, 2015 |
| Date Qualified |
| January 20, 2023 |
April 27, 2023 |
| Markets |
| United States, Canada |
United States, Canada |
| CB Model Identifier |
| ES_1036337_101/102J072**1*(1,4)*****_08282021013756_2967339 |
ES_1036337_GTW120*1_09022021145719_8878767 |
| Meets ENERGY STAR Most Efficient 2024 Criteria |
| Yes |
Yes |
| Product Category |
| Geothermal Heat Pumps |
Geothermal Heat Pumps |
| Date Certified |
| January 20, 2023 |
April 27, 2023 |
| Refrigerant Type |
| R-410A |
R-410A |
