Solid fuel burning stove

Claim 1

A solid fuel burning stove comprising: a firebox including side, end and top walls and a base for supporting fuel thereon, said walls and base defining an enclosed body; said firebox including refractory means disposed about a portion of said side and end walls for inhibiting heat transmission therethrough; a primary combustion chamber in which said fuel is burned, said primary chamber having primary air intake means for supplying combustion air to said chamber; a secondary combustion chamber in communication with said primary combustion chamber, said secondary chamber having secondary air intake means for supplying combustion air to said chamber so that volatile gases released by fuel burned in said primary combustion chamber are burned therein; said secondary air intake means supplying combustion air to said volatile gases; baffle means for directing flow of combustion air across the top of fuel in said primary chamber for combusting fuel therein and mixing with said volatile gases and for controlling the flow of said volatile gases from said primary combustion chamber to said secondary combustion chamber; said baffle means being a horizontally disposed sheet extending across said firebox so as to define said first and second combustion chambers in said firebox; said baffle means directing said volatile gases across said fuel burning in said primary combustion chamber to thereby maintain said gases at a high temperature; and means for regulating exhaust gas flow from said secondary chamber to a smoke outlet, said means including a flow diverter which reduces the velocity of the exhaust gases to thereby increase the amount of heat recovered from the gases when exiting the secondary chamber; wherein burning of said hot volatile gases in said secondary chamber provides an additional source of heat for radiation by said firebox, thereby increasing the thermal efficiency of the fuel burned therein.