Closed Loop

Closed loop wells work by drilling a hole to depths of up to 200m depending on ground conditions and installing a HDPE loop and thermally enhanced bentonite grout surround. These can be installed in systems from a single borehole to multiple hundreds depending on the heating and cooling requirements of the building. This is then connected to the heat pump back in the plant room via headering pipework and manifolds. The closed loop system is by far the most common application of ground source energy within the UK. This is due to the flexibility and relatively low risk of the system from a performance point of view.

Obviously, design is key to the successful execution of any system and ground source is certainly no exception. Experienced designers with recognised qualifications are integral to an efficient and sustainable system.