Vertical Loop - these loops are common for applications where land is limited.  Pipes are buried in drilled holes, with hole depths ranging from 150' to over 400'. Typically one pipe or circuit is used for every ton of equipment.  These systems require a minimum of 15' spacing between boreholes, and 20' is recommended.  The holes are sometimes filled with a special grout to ensure pollutants do not enter the hole (and water table) and to ensure that there is good contact between the pipe and the earth. These systems are typically more efficient (approx 10%) than horizontal loops due to the more constant temperature of the earth at greater depths.

Phone: 877-287-7857

Fax: 231-734-9097