Barley Fields

WHY CHOOSE GROUND SOURCE HEAT PUMPS?

Ground-source heat pumps are generally used on bigger properties that need higher outputs. Because they extract heat out of the ground they are more expensive to install than air-source alternatives but they’re more efficient and cheaper to run in the winter when the ground temperature is warmer than the air temperature.

Click here to find out more.

HOW GROUND SOURCE HEAT PUMPS WORK?

  • In principle a heat-pump is like a fridge in reverse. The refrigeration system in your fridge cools the inside and generates heat at the back but a heat-pump gets cold outside and heats the house.

  • Although some systems have bore holes, most ground source heat-pumps have a series of water loops buried in the ground approximately 1m deep where the temperature is between 9 & 12C. The number of loops and the size of the groundworks is dependent on the size of the property and the heat-pump.

  • The unit is mounted inside and sometimes needs a dedicated plant room. It’s powered by electricity but produces between 3 & 4kW of heat for every 1kW of consumed energy.

  • All heat-pumps work well with underfloor heating and can be connected to radiators but to maximise efficiency old radiators might need replacement. Normally a new hot water tank is required.

​Click here to find out more.

Image by Benjamin Jameson
Green Pastures

LEARN MORE ABOUT THE RENEWABLE HEAT INCENTIVE (RHI) SCHEMES:

The Renewable Heat Incentive (RHI) is a Government incentive designed to encourage uptake of renewable technologies and ultimately contribute towards the reduction in CO2 emissions.

It is available for Air and Ground source heat-pumps and subject to a successful application you could receive quarterly payments over a seven year period. 

More information can be found via Ofgem or the Energy Saving Trust:

https://www.ofgem.gov.uk/environmental-programmes/domestic-rhi/applicants

https://energysavingtrust.org.uk/grants-and-loans/renewable-heat-incentive/


RHI payments vary but for a three-bed house are typically around £2,250 a year. A more accurate estimate can be obtained using the link below:

https://www.gov.uk/renewable-heat-incentive-calculator