Ground source heat pumps

Ground source heat pumps use pipes buried in the garden to extract heat from the ground. This is usually used to heat radiators or underfloor heating systems and hot water. Beneath the surface, the ground stays at a fairly constant temperature, so a ground source heat pump can be used throughout the year - even in the middle of winter.

How does a ground source heat pump work?

A ground source heat pump circulates a mixture of water and antifreeze around a loop of pipe - called a ground loop - which is buried in the garden. Heat from the ground is absorbed into this fluid and is pumped through a heat exchanger in the heat pump. Low grade heat passes through the heat pump compressor and is concentrated into a higher temperature useful heat capable of heating water for the heating and hot water circuits of the house. Ground loop fluid, now cooler, passes back into the ground where it absorbs further energy from the ground in a continuous process while heating is required.

A picture of a air source unit

Ground source pumps can be used all year round.

The benefits of ground source heat pumps

  • Can reduce your carbon footprint: heat pumps can lower your home's carbon emissions, depending on which fuel you are replacing.

  • No fuel deliveries required.

  • Can provide space heating and hot water.

  • Can lower fuel bills, especially if you are currently using conventional electric heating.

  • It's often classed as a 'fit and forget' technology because it needs little maintenance.

Chapman Plumbing and Heating can offer free advice and quotation for ground source heat systems, so please call 01752 881841 or complete the Quick Enquiry request.