A geothermal system requires a series of boreholes in which pipes are installed vertically beneath the earth's surface, creating a loop system through which fluid is curculated.
High solids bentonite grouts are becoming increasingly popular in geothermal projects because they provide an excellent annular seal and improve thermal conductivity in geothermal heating and cooling. There are several versions of this type of grout on the market today. Several have been formulated so silica sand can be added to give even higher thermal conductivity.
A geothermal system requires a series of boreholes in which pipes are installed vertically beneath the earth's surface, creating a loop system through which fluid is circulated. Heat generated underground is captured and absorbed in the fluid and transported to a system of heat exchangers to provide heat to a building. In the warmer seasons, heat from the home or building is transferred to the earth to cool the home or building.