Air to water heat pumps are easier and quicker to install than ground to water heat pumps as they don’t need any land to be dug up for installation and do not take up too much outdoor space. Or, if a heat pump isn’t quite right for you, for example, if you don’t have the space for one, there are other renewable heating options that might work.
Solar water heating systems use solar panels, called collectors, fitted to your roof. These collect heat from the sun and use it to heat up water that’s stored in a hot water cylinder. A conventional boiler or immersion heater can be used to make the water hotter, or to provide hot water when solar energy is unavailable. You’ll need around 4-5 square metres of roof space for solar panels, which receives direct sunlight for most of the day.
Biomass systems burn wood pellets, chips or logs to heat a single room, or to power central heating and hot water boilers. While burning the wood does emit carbon dioxide, it is at a lower level than coal or oil provided the fuel is sourced locally. Biomass is considered a sustainable option if new plants and trees continue to grow in place of those used for fuel.