A covering system that covers an end pipe of a chimney system. A portion of the end pipe protrudes from the roof of a house or building where the chimney system is located. The system comprises of at least two base supports that sit on the roof. A channel spanning around the end pipe of the chimney system that protrudes from the roof. The base supports are attached at the base of the channel. The base has a protruding section whose dimensions are larger than the channel. A collar covering having a first and a second opening. The collar covers the protruding section of the base by its first opening and receives the channel at its second opening. A crown top base that slides inside of the channel from the top.

A covering system that covers an end pipe of a chimney system. A portion of the end pipe protrudes from the roof of a house or building where the chimney system is located. The system comprises of at least two base supports that sit on the roof. A channel spanning around the end pipe of the chimney system that protrudes from the roof. The base supports are attached at the base of the channel. The base has a protruding section whose dimensions are larger than the channel. A collar covering having a first and a second opening. The collar covers the protruding section of the base by its first opening and receives the channel at its second opening. A crown top base that slides inside of the channel from the top.

A conduit made of a synthetic resin, having an inner surface and an outer surface, having concave portions and convex portions alternately and continuously provided in the length direction. The conduit is bendable. The conduit includes outer wall parts extending with a first width in the length direction; inner wall parts positioned radially inside relative to the outer wall parts and extending with a second width in the length direction; and side wall parts joining the outer wall parts and the inner wall parts so that the outer wall parts and the inner wall parts are alternately and continuously provided in the length direction. The outer surfaces of the outer wall parts each have, at both ends in the length direction, protruding parts, which protrude in the radial direction.

A conduit made of a synthetic resin, having an inner surface and an outer surface, having concave portions and convex portions alternately and continuously provided in the length direction. The conduit is bendable. The conduit includes outer wall parts extending with a first width in the length direction; inner wall parts positioned radially inside relative to the outer wall parts and extending with a second width in the length direction; and side wall parts joining the outer wall parts and the inner wall parts so that the outer wall parts and the inner wall parts are alternately and continuously provided in the length direction. The outer surfaces of the outer wall parts each have, at both ends in the length direction, protruding parts, which protrude in the radial direction.

An exhaust structure for combustion apparatus includes an exhaust tube connected to a water heater, an exhaust pipe through which the exhaust tube is introduced, and an exhaust tube fixing member for fixing a position of the exhaust tube relative to the exhaust pipe. The exhaust tube fixing member includes a first fixing portion having a cylindrical shape and fixed to the exhaust tube, and an attaching portion connected to the first fixing portion and attached to the exhaust pipe. The attaching portion have a first cylindrical portion having a first inner diameter D2, and a second cylindrical portion having a second inner diameter D3 smaller than the first inner diameter D2 of the first cylindrical portion.

An exhaust structure for combustion apparatus includes an exhaust tube connected to a water heater, an exhaust pipe through which the exhaust tube is introduced, and an exhaust tube fixing member for fixing a position of the exhaust tube relative to the exhaust pipe. The exhaust tube fixing member includes a first fixing portion having a cylindrical shape and fixed to the exhaust tube, and an attaching portion connected to the first fixing portion and attached to the exhaust pipe. The attaching portion have a first cylindrical portion having a first inner diameter D2, and a second cylindrical portion having a second inner diameter D3 smaller than the first inner diameter D2 of the first cylindrical portion.

The modular tubular exhaust system includes a first tubular body, a second tubular body and at least one third tubular body connecting to form, a fully assembled configuration, a vertically arranged exhaust pipe. The first, the second, and the third tubular bodies each have a tubular body first end and a tubular body second end where the first ends and second ends are configured to mate with each other to form the vertically arranged exhaust pipe. The system further includes tabs that extend radially outward on opposing sides of the tubular bodies to allow a plurality of fasteners to attach tubular bodies together when arranged in the vertical configuration. The assembled configuration may vary within the spirit and scope of the disclosure, for example, in some embodiments, the system may only have a first and a second tubular section or a first, second, and a plurality of third tubular sections.

An exhaust structure includes an intake section which includes an inlet, an output section which includes an outlet, and a piping section coupled to the intake section and the output section at a section interface. The piping section includes a first inner diameter from the intake section to the output section, wherein one of the intake section or the output section has a second inner diameter at the section interface. The second inner diameter includes a same value as a value of the first inner diameter. A plurality of smoothing layers are configured to resist turbulence and condensation produced by a flow of one or more gasses in the intake section, the output section, and the piping section.

An exhaust structure includes an intake section which includes an inlet, an output section which includes an outlet, and a piping section coupled to the intake section and the output section at a section interface. The piping section includes a first inner diameter from the intake section to the output section, wherein one of the intake section or the output section has a second inner diameter at the section interface. The second inner diameter includes a same value as a value of the first inner diameter. A plurality of smoothing layers are configured to resist turbulence and condensation produced by a flow of one or more gasses in the intake section, the output section, and the piping section.

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; a double conic body coaxially residing in the first cavity and coaxially positioned with the second tubular member; and a flange dimensioned to extend over at least a portion of the periphery of the existing flue so as to aid in supporting the device on the flue.