There are two types of ground source heat pump (GSHP) arrays: a horizontal array that’s installed as straight or coiled pipes in trenches or a GSHP borehole, which is a vertical ground array sunk into the ground by a professional geothermal drilling specialist.
The role of the borehole is to collect heat from rock and deliver it to a ground source heat pump. Rock is the heat source because heat from the sun is stored in surface soil. From there it dissipates downwards through the rock strata.
THERE ARE TWO TYPES
Borehole arrays come as either closed loop or open
