Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
F23B—METHODS OR APPARATUS FOR COMBUSTION USING ONLY SOLID FUEL
F23B7/00—Combustion techniques; Other solid-fuel combustion apparatus
F23B7/002—Combustion techniques; Other solid-fuel combustion apparatus characterised by gas flow arrangements
F23B7/005—Combustion techniques; Other solid-fuel combustion apparatus characterised by gas flow arrangements with downdraught through fuel bed and grate