Patent ID: 7179164

Claim:
A cap device for a flue opening of a chimney to enhance draw of smoke and to protect from entry of animals, debris, and the elements, which device comprises: a tubular housing fabricated from flat sheet metal; a top attached to said tubular housing; a plurality of louver openings in a lower portion of said tubular housing to draw air; a plurality of exit openings in an upper portion of said tubular housing above said louver openings, said tubular housing having an imperforated portion between said lower and said upper portions, wherein said exit openings are below said top; an inner frame and mounting assembly attached to the lower edge of said tubular housing including anchoring and leveling means to anchor said inner frame and mounting assembly to said chimney and to level said device with respect to said chimney; and a liner within and attached to said tubular housing wherein said liner extends from said louver openings past said imperforated section and up to said exit openings to form at least one space between said liner and said tubular housing so that ambient air drawn through said louver openings will pass through said at least one space and out said exit openings in said upper portion of said tubular housing.