Beginner’s guide to ground source heat pumps

During Tom and Danielle Raffield's timber extension to a Grade II-listed cottage, which featured on Grand Designs in 2017, the couple installed a ground source heat pump on the plot. 

By Hugh Metcalf | 19 February 2020

This sustainable energy source is a popular choice for new self-build homes. We look at what a ground source heat pump is, how easy installation is and what it will cost.

Tom Raffield timber house from grand designs 2017

Image: During Tom and Danielle Raffield’s timber extension to a Grade II-listed cottage, which featured on Grand Designs in 2017, the couple installed a ground source heat pump on the plot. 

Renewable energy sources are the next frontier of self-building, and there’s a host of options available to you to improve your home’s eco-credentials. You may be familiar with solar power, but what do you know about ground source heat pumps?

These systems are great renewable sources, as they transfer 3 times more energy into the home than they use to extract it, and it’s also 3 times more efficient than gas to heat your home, according to ground source heat pump providers Nu-Heat.

If you’re new to the concept, here’s what you need to know…