The concept is well-established: by drilling multiple shallow geothermal drilling boreholes, typically to depths of between 300 to 800ft, we can install liquid-filled tubes (commonly known as closed loops) to function as heat exchangers. The liquid within these loops circulates at a slow pace, extracting the naturally occurring heat retained in the soil and rocks beneath us. This abundant energy source is then drawn to the surface, providing heating and hot water to buildings all year round, largely unaffected by the cold winter air temperatures above ground. 

During the hot summer months, the system reverses, cooling the building. The pump removes unwanted heat from the building and transfers it back into the soil and rocks beneath the surface, effectively stockpiling it for later use.

You might envision it as a colossal, natural thermos flask that Mother Nature has generously provided. It stores the excess heat from the summer months within the highly insulated earth and rocks, allowing for retrieval of this stored energy on demand for heating water and controlling the building's internal temperature year-round.

This system is arguably the greenest and cleanest form of ‘climate control' for a building. Simply set the thermostat to your desired temperature, and the system will maintain that internal room temperature throughout the year whether in the darkest depths of winter or the scorching intensity of a heatwave.