Patent ID: 8336537

Claim:
A solid fuel burner assembly, comprising: a) an inner combustion bin having a top wall, a cylindrical wall and a bottom wall, the inner combustion bin having a plurality of vent openings near its top, and having a bottom opening in the bottom wall; b) a tapered fuel container located within the inner combustion bin to carry and combust solid fuel, the tapered fuel container having a cylindrical neck at its bottom, the cylindrical neck having a plurality of openings to allow combustion products to recirculate into the fuel container and an opening at the bottom end of the neck for admitting fresh air; c) an outer cylindrical exhaust bin having a top wall and an opening at its bottom to allow the neck of the fuel container to pass therethrough, the said bottom opening is aligned with the bottom opening of the inner combustion bin; d) a vertically placed air core combustion tube having a plurality of apertures along its length located in the inner combustion bin and at least partly located within the fuel container to allow air to pass from the neck of the fuel container to a combustion area; wherein the inner combustion bin is spaced apart from the outer exhaust bin so that the combustion products existing the vent openings of the inner combustion bin can pass between the inner combustion bin and the outer exhaust bin and recirculate into the fuel container via the plurality of openings of the cylindrical neck.