Ground Source Heat Pump

A Ground Source Heat Pump forms part of an eco-friendly central heating system which uses the geothermal heat found below the Earth’s surface. The temperature 1 – 2 metres below the ground is about the same as the average annual air temperature. This heat is collected by transfer fluid which is then pumped around the system.

How Do Ground Source Heat Pumps Work?

Ground source heat pumps use pipes which are buried in the garden to extract heat from below the Earth’s surface. This heat can then be used to heat radiators, underfloor or warm air heating systems and hot water in your home. a ground source heat pump circulates a mixture of water and anti-freeze around a loop of pipe – called a ground loop – which is buried in your garden. Heat from the ground is absorbed into the fluid which then passes through a heat exchanger into the heat pump. The ground stays at a fairly consistent temperature under the surface, so the heat pump can be used throughout the year – even in the middle of winter!

Ground Source Heat Pump

Are Ground Source Heat Pumps Environmentally Friendly?

A ground source heat pump (GSHP) system will help to lower your carbon footprint through the use of a renewable energy source, the heat trapped in the ground. Research carried out by the Energy Saving Trustshowed that a ground source heat pump with mid range efficiency uses a third of the energy needed in an average gas or oil boiler to produce an equal amount of heat.he pump is powered electrically so there will be some CO2 emissions from the system, however, if you also install a Solar PV system on your property this can power the heat pump – thus eliminating CO2 emissions altogether

GSHPs are ideally suited to buildings which have a good amount of land to allow for the laying of the heat transfer tubing. They are not suitable for every property, so it’s best to contact us and arrange for a site visit so we can provide as much accurate information as possible.

GSHPs also work best on homes with a good amount of insulation as they work best when producing heat at a lower temperature than traditional boilers. As such it is highly recommended that your home is well insulated and draught-proof to achieve the best effect.

Follow this link for a selection of the most frequently asked questions about heat pumps. Remember that installing a GSHP will qualify you for the RHI. If you would like to know more about ground source heat pumps or would like to discuss any aspect of your renewable project please contact us.