Patent ID: 8734209

Claim:
A chimney cap, comprising: an intake pipe extension including an intake opening; an upper wall including a lower surface, the lower surface comprising a recessed portion extending over an entire area of the intake opening and offset above the intake opening; at least one sidewall completely surrounding a perimeter of the intake opening and being offset from the perimeter of the intake opening, wherein the at least one sidewall includes a solid portion and a perforated portion, wherein the perforated portion includes a plurality of apertures and the solid portion is free of a plurality of apertures, wherein the solid portion is the entire portion of the at least one sidewall that extends upward from the intake opening to a plane, the plane being approximately co-planar with the upper wall, and wherein the perforated portion extends upward from the plane; and an exhaust pipe extension including an exhaust opening disposed above the upper wall.