FollowAt a time of eye-watering energy price hikes, turning our homes into mini-power stations means we can cut bills and carbon emissions by generating a significant proportion of our heating and hot water needs ourselves.
To find out which renewable heat technology works best, the latest Ethical Consumer magazine Buyers’ Guide looked at the three main options – ground source heat pumps, biomass boilers and solar hot water.
Ground source heat pumps work by tapping into the energy which is permanently present underground. A long, coiled fluid-filled pipe buried under your garden transfers this energy to a heat exchanger which then makes hot water for heating and for use around the house.
