Biomass boilers make highly efficient use of energy from wood, converting up to 95% of it into usable heat – similar to a modern gas boiler.
Wood is the most common type of biomass fuel and three main types are used in biomass boilers: logs, wood pellets, and wood chips. It is a carbon-neutral fuel, taking carbon out of the atmosphere during growth and releasing the same amount when burned. Biomass is replenished as it is harvested, maintaining a closed carbon cycle with no net increase in CO2 emissions.
It is estimated that wood pellet boilers will meet the heating demand of a typical house at a cost of around £650 per year. Using a log-burning boiler – and providing your own logs – will reduce this cost to approximately £300.
Wood-burning biomass boilers are also eligible for the Domestic Renewable Heat Incentive (RHI), providing you with quarterly payments for 7 years, and which for many customers will meet the entire cost of the installation.