System for burning bio-mass and synthetic solid fuel

A device for the improved burning of bio-mass and synthetic solid fuels comprising an outer chamber formed by a plurality of outer housing walls, a combustion firebox mounted in said outer chamber, means for feeding fuel to said firebox, said outer chamber further including means for supplying combustion air to said firebox and means for exhausting combustion gases from said outer chamber, said firebox including stationary side walls laterally spaced from each other in part forming a longitudinally extending trough-like combustion chamber having upstream and downstream ends thereof, said combustion chamber further defined by a stationary wall at said upstream end and a gate at said downstream end and a lower wall disposed between said firebox side walls, said gate having a lower edge positioned proximal to but vertically spaced from said lower wall, and means for longitudinally moving said lower wall between said firebox side walls from said stationary upstream wall towards and past said gate so as to continually remove ash from said firebox and deposit such ash into said outer chamber.