A closed loop system consists of a borehole or a number of boreholes, that have been drilled and installed with plastic (HDPE) pipe or a “loop”. A heat transfer fluid (Glycol/Water mix) is pumped around the loop and collects heat from the ground and then runs to the Heat Pump and is used to heat the property.

A Geothermal Borehole is usually drilled in 150mm diameter and then installed with a 40mm HDPE loop. Once the loop is in the ground, then depending on the geological conditions it is either surrounded by a gravel pack or a thermogrout is pumped into the borehole to backfill the hole and provide a pathway for heat transfer. Once the loop has been installed then it is pressure tested to ensure that there are no leaks and then it can be connected up to the heat pump.

closed-loop

Contact Us

Somerset
Northwood Farm
Coxbridge Road
Baltonsborough
Glastonbury
Somerset BA6 8RA

Email: [email protected]
Tel: 01458 851276

South Wales
Unit B3
Fram Enterprise Centre
Pontyclun CF72 8QZ

Email: [email protected]
Tel: 02920 099796

For more information please contact us on [email protected] or 01458 851276.

[email protected] +44 (0)1458 851276
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