How does open loop geoexchange work ?
• ANSWER: The system generally works the same way, except instead of closed piping doing the thermal transfer, you have two wells sitting approximately 100 ft apart on your property. The supply well will bring up water and send it through supply piping into the building or house. There the geoexchange unit does the same thing as in a closed loop system. Once through the system the water is taken outside the home or building in return piping and the water is re-injected back down into the aquifer where it came from. Even though water temp does vary in different areas, generally there is enough heat in well water to extract some thermal properties and transfer these in the heat pump.
