How much ground is needed to install the ground arrays (slinkies)?

The amount of ground required for the ground arrays depends on the heat demand for the house, which in turn depends on the insulation levels, size of the building and temperatures required. The lower the heat demand the less ground required. As a rough rule of thumb, every 10m of slinky will provide 1kW of heat.

Slinkies are provided in 30, 40 or 50m lengths and are generally installed in 2m deep trenches 300mm wide. If more than one slinky is used then the trenches need to be separated by at least 5m between centres.

It is also possible to install slinkies horizontally in trenches which are 1.2m deep and 1.2m wide, again the trenches need to be separated by 5m between centres.

Kensa manufacture both heat pumps and the ground arrays and therefore know that the ground arrays will provide the required energy from the ground to support heat pump.