green wood chip furnace
A green wood chip furnace is a home heating furnace that burns green wood chips. Among the first to be developed was by Vermont experimenter Steve Redmond. He has formed a company, Vermont Heat Research, to explore the use of new methods of combustion to produce clean heat from basic unprocessed renewable solid fuels. Redmond's VTHR furnace is unusual in that it does not require wood to be dried to produce heat at high efficiency without smoke. It uses wood from brush, tree limbs, timber waste and other low grade sources. Redmond also points out that wood may be farmed for rapid production for chips using a method called coppicing.
For more information, go to "An Experimental Wood Chip Furnace" at Redmond's website.