How Much Area Does a Ground Source Heat Pump Need

Answer: A ground source heat pump needs more space than an air source heat pump. A typical horizontal system requires around 700 square metres. A vertical system needs enough space for the drilling rig to access the site, but boreholes are only around 20 centimetres wide.

How much space is needed for a geothermal heat pump?

A useful benchmark: about 400 to 600 feet of horizontal loops are needed for each ton of energy required to heat or cool. A mid-sized house usually requires a 3 ton unit, and so it would need space for approximately 1200 t0 1800 feet of coils.

How deep does a ground source heat pump need to be?

There are two main elements of a ground source heat pump system: The ground array, which can be either a horizontal grid of pipes, which should be 1.2m below ground level, or two or three vertical boreholes, which are likely to be more than 70m deep.