Frequently Asked Questions

How big are the trenches required for a Ground Source Heat Pump?

A typical heating-only installation for a medium sized, new build detached house would need at least two narrow trenches, each 300 mm wide, 40 to 50 metres long, and 1 metre deep. The trenches can be straight or curved and laid in any direction to suit your site, providing they are always a minimum of 5 metres apart. A standard excavator, such as the type used to dig conventional foundations and footings, can dig the trenches and backfill them after the ground loops have been installed.  The longer the trenches the more energy your Ground Source Heat Pump will be able to harvest.