Pellet is a heating material /type of briquettes/ produced from high compressed wood waste like sawdust, chips or savings. Performed in the form of granules, shaped like spheres or cylinders of 6-8mm in diameter and up to several centimeters in longevity, are packed in multi sized bags depending on customer wish. Wood pellets have a calorific value such as wood itself, low internal humidity and a small amount of ash remnants is left after combustion process. For these reasons it is convenient to use in central heating boilers and home fireplaces fitted with a tank of pellet feeder.