Solar thermal systems use energy from the sun to heat up water and provide households with hot water from a renewable source. The solar panels, fitted on the property’s roof, collect sun’s rays to heat up a fluid which in turn heats up used in the property. You would also need an immersion heater or regular boiler by way of back-up as solar thermal can generally provide only a third of the hot water needed.
Pros: Renewable heating source, qualifies for Government’s Renewable Heat Incentive (RHI) payments, low maintenance cost.
Cons: Expensive to install, may require planning permission, can be unsightly, requires additional source of heating, best performance obtained in households with a south facing roof.