Biomass refers to any content that comes from living matters, which includes wood and bark from trees, leaves or stems from plants, and in some cases animal manure. 2nd, the density of pellet fuel is considerably increased than raw biomass (forty lbs. for each cubic foot as opposed to ten-25 https://claytoniykbn.thekatyblog.com/36595719/the-5-second-trick-for-horizon-biofuels-pellets