With an air source heat pump, there is no need to dig or drill. Energy is extracted direct from the surrounding air in an economical and extremely environmentally friendly manner, without having to excavate your garden. Air source heat pumps are affordable, flexible and can be easily used to upgrade your existing heating system.
The horizontal ground loop collects solar energy that is stored in the ground. The loop is buried about one metre below the surface and energy is extracted from the ground. The length of the loop depends on your house, the size of the heat pump and local ground conditions.
The vertical ground loop collects solar energy stored deep below the surface. A hole is drilled into the bedrock and a pipe is installed to a depth of up to 200 metres. The precise depth depends on your house, the size of heat pump and the surrounding conditions.
As the name suggests, a groundwater heat pump collects energy from the groundwater. The water is pumped up from a water borehole to a heat exchanger, where the energy is recovered. The water is then discharged back through another well. This solution can be the best choice when groundwater is readily available.