Air source heat pumps represent a major step forward in energy efficient climate control, because they utilise free heat from the environment, rather than generating it solely from traditional fuel sources such as gas, oil or LPG.
Air source heat pumps can extract latent heat from outside air (even when the temperature outside is down to -20C) and pump it inside to heat indoor spaces, making use of outside air as an infinitely renewable energy resource
Wood-fuelled heating systems, also called biomass systems, burn wood pellets, chips or logs to provide warmth in a single room or to power central heating and hot water boilers.
A stove burns logs or pellets to heat a single room - and may be fitted with a back boiler to provide water heating as well. A boiler burns logs, pellets or chips, and is connected to a central heating and hot water system. A wood-fuelled biomass boiler could save you up to £990 a year compared to electric heating.