Simply put, biomass is anything that was alive and that can be used for fuel. Biomass is becoming an increasingly popular fuel within homes and businesses. Biomass fuels, including wood burned in wood stoves, were actually commonly used until modern times. Nowadays, they are becoming popular once again as people try to save money on energy bills and decrease their carbon footprints. Corn is one of the best biomass fuels, because it creates no pollution and produces a lot of heat.