A solar thermal system harnesses the sun’s energy to heat hot water directly (rather than generate electricity). For maximum benefit, you need a south-facing roof or east west split for a panel on each side.
It’s also possible to convert an existing hot water cylinder by removing the immersion heater and installing a solar plug. If you are thinking about a new hot water cylinder, then we can give advice about also installing solar thermal panels or tubes. This technology saves you money during the summer months – you may not even need your boiler on at all.