An exhaust adapter secures an exhaust tube relative to an exhaust pipe. The exhaust adapter is formed to have an annular shape enclosing a through hole, and is mounted on the outer peripheral surface of the exhaust tube and on the inner peripheral surface of the exhaust pipe by inserting the exhaust tube into the through hole. When the exhaust adapter is being fitted on the outer peripheral surface of the exhaust tube, the inner peripheral surface of the exhaust adapter presses the outer peripheral surface of the exhaust tube, and when the exhaust adapter is being fitted on the inner peripheral surface of the exhaust pipe, the outer peripheral surface of the exhaust adapter presses the inner peripheral surface of the exhaust pipe.

An exhaust flue includes an exhaust chimney body, and an open end multi-hole area. The exhaust chimney body defines a passage for discharging exhaust gas. The open end multi-hole area is an area in which multiple holes are defined around a total circumference of an open end of the exhaust chimney body.

An exhaust tube includes one end portion and the other end portion and is connected at one end portion to a combustion apparatus, of which inside is defined as an exhaust passage for combustion gas. An exhaust pipe has an outer diameter greater than that of exhaust tube, into which a part of exhaust tube on a side of the other end portion is introduced. An exhaust adapter is attached between an outer circumferential surface of exhaust tube and an inner circumferential surface of exhaust pipe. On the side close to the other end portion in exhaust tube relative to exhaust adapter, an exhaust passage hole 1a is provided separately from an opening in the other end portion of exhaust tube. Exhaust passage hole has an opening area greater than a cross-sectional area of the exhaust passage and is in communication with the exhaust passage.

The invention provides a device for removing heat from a building, the device having: a first tubular member defining a first cavity; a second tubular member defining a second cavity, whereby said second tubular member resides within the first cavity and is coaxial to the first tubular member; and a double conic body coaxially residing in the first cavity and coaxially positioned with the second tubular member.

Also provided is a method for removing heat from a building, the method having the steps of: directing heat-containing exhaust emanating from a flue, defining a first diameter, to a passageway received by the flue, whereby the passageway defines a longitudinal axis and a periphery circumscribing the axis; forming the directed exhaust into a slipstream, wherein the slipstream generally travels along the longitudinal axis; and routing precipitation entering the passageway to the periphery.

An exhaust adapter secures an exhaust tube relative to an exhaust pipe. The exhaust adapter is formed to have an annular shape enclosing a through hole, and is mounted on the outer peripheral surface of the exhaust tube and on the inner peripheral surface of the exhaust pipe by inserting the exhaust tube into the through hole. When the exhaust adapter is being fitted on the outer peripheral surface of the exhaust tube, the inner peripheral surface of the exhaust adapter presses the outer peripheral surface of the exhaust tube, and when the exhaust adapter is being fitted on the inner peripheral surface of the exhaust pipe, the outer peripheral surface of the exhaust adapter presses the inner peripheral surface of the exhaust pipe.

The present invention provides an exemplary lightweight chimney crown to protect a chimney from moisture and other elements. The chimney crown being comprised of a lightweight structural foam body with a cementitious coating covering the upper, inner, outer surfaces of the chimney crown body and preferably also covering the lower surface of the chimney crown body.

A safety switch that prevents the flow of gas in a gas operated fireplace or furnace when a damper is in a closed position, and only allows the gas flow when the damper is in an open position. The safety switch is mechanically connected to the damper and electrically connected to a gas line valve. When the damper is in an open position, the safety switch allows the gas to flow, or conversely, when the damper is in a closed position, the safety switch prevents the gas from flowing. The safety switch also may provide for audio or visual alerts to indicate the open or closed status of the damper.

A termination assembly for a chimney is provided having an exhaust layer with an exhaust tube adapted to receive exhaust air from an appliance. An outlet opening of the exhaust tube terminates in the exhaust layer. An intake layer is separated from the exhaust layer. The intake layer has an enclosure defining a positive pressure area within the enclosure and a plurality of openings. Each of openings has a cross-sectional area that decreases from an exterior surface of the enclosure toward the positive pressure area within the enclosure. An intake tube is adapted to receive intake air at an inlet opening positioned in the positive pressure area. The positive pressure area in the intake layer has a pressure greater than the atmospheric pressure outside the termination and in the exhaust layer to prevent flow in the exhaust tube from being reversed.

Provided is an exhaust port member (7) having an inlet port (811) into which combustion exhaust gas flows; an exhaust port (77) through which the combustion exhaust gas is discharged to an outside; an exhaust passage (P) in which the combustion exhaust gas flows from the inlet port (811) toward the exhaust port (77); and a space part (9) which is located adjacent to a downstream end exhaust passage part (Pz) positioned at a downstream end of the exhaust passage (P) via a partition wall (781) defining the downstream end exhaust passage part (Pz), wherein the space part (9) has an upstream opening (90) on an upstream side thereof, the combustion exhaust gas flowing through the exhaust passage (P) flows into the space part (9) through the upstream opening (90), and the space part (9) is closed except for the upstream opening (90).