The main eco-friendly advantage of using wood pellet fuel is that it is renewable and made from recycled wood waste and sawdust. According to the U.S. Environmental Protection Agency, pellets are the cleanest solid fuel and operate efficiently at 70 to 83 percent, contributing very little to air pollution.
Wood pellets are used in freestanding stoves, fireplace inserts, boilers, furnaces, and on a large scale in schools and prisons. The pellets are produced and manufactured in the United States and Canada and can be bought at fireplace dealers, nurseries and building and garden supply stores. The heat sources that use pellets are cheaper to install than a conventional heater, as a chimney and ductwork are not required.