What does a vertical loop field look like?
Vertical loop fields are used when the amount of land available to us is limited for the amount of pipe going into the ground. A series of 4 inch holes are drilled and each hole is from 100 to 300 feet deep (30M to 90M). Each hole has a 3/4 inch or 1 inch (2-2.5 cm) pipe going down to the bottom of the hole and then back to the top. A special grout is used to fill the hole so that the pipes are in constant contact with the soil and not insulated from the soil by air. The pipes in the holes are then joined together in a horizontal trench about 5 feet below the surface using another high density pipe so that the fluids circulating through the ground can be brought back into the building.
