Horizontal Loop Installation Options
Durbin Geothermal offers several excavating methods for your horizontal loop field. We have encountered many different soil and site conditions, and are confident we can offer an effective solution for your loop field needs. The chart below shows the available options and space needed for installation of each.
Open Cut Trench Options
Chain Trencher
| Width | 6-8 ft |
|---|---|
| Depth | 4 ft out, 6 ft back |
| Length | 250 ft |
| Tons per Trench | 1 |
| Distance Between | 8-10 ft |
| 500 ft coils are used with trenchers | |
Excavator
| Width | Depth | Length | Tons per Trench | Distance Between |
|---|---|---|---|---|
| 30 in | 4 ft out, 6 ft back | 300 ft | 2 | 10-12 ft |
| 30 in | 4 ft out, 6 ft back | 150 ft | 1 | 10-12 ft |
| 54 in Slinky | 5 ft | 150 ft | 1 | 12 ft minimum |
| 600 ft coils are used with excavators | ||||