We installed two Carrier ground loop heat pumps in this large home. Pictured here is the horizontal bore machine used to install the loop piping. Instead of digging a pit for slinky loops, we decided to experiment with a horizontal bore machine. This machine can bore a 4” hole horizontally at ~10ft deep. After each 200ft run, the machine can turn the drill head back toward the surface, attach to our loop pipe, and pull it back into the bore hole. More below
Two pipes are pulled into the bore hole with a “U” bend fused onto the ends. The loop water flows out and back each bore hole absorbing heat from the earth and delivering it to the heat pump. Obvious advantage is saving landscaping or install loops under existing driveway, etc.