A method of installing an exhaust tube is implemented by inserting an exhaust tube into an exhaust pipe that leads from the inside of a building to the outside thereof. Utilizing an already-placed exhaust pipe, a new exhaust tube is inserted into this exhaust pipe. The exhaust tube is installed according to a procedure of: performing, on the inside of the building, an operation of inserting a new exhaust tube into the already-placed exhaust pipe; performing, on the outside of the building, an operation of fixing the inserted exhaust tube to the exhaust pipe; and performing, on the inside of the building, an operation of connecting the fixed exhaust tube to an exhaust vent of a combustion apparatus.

A method of installing an exhaust tube is implemented by inserting an exhaust tube into an exhaust pipe that leads from the inside of a building to the outside thereof. Utilizing an already-placed exhaust pipe, a new exhaust tube is inserted into this exhaust pipe. The exhaust tube is installed according to a procedure of: performing, on the inside of the building, an operation of inserting a new exhaust tube into the already-placed exhaust pipe; performing, on the outside of the building, an operation of fixing the inserted exhaust tube to the exhaust pipe; and performing, on the inside of the building, an operation of connecting the fixed exhaust tube to an exhaust vent of a combustion apparatus.

A unitary, pre-insulated pipe clamp/hanger has a conventional C-channel section clamp/hanger-receiving body portion 1 with a pipe receiving mouth 2, a fastening nail receiving mounting portion 3 integrally formed along the exterior of one wall with the nail penetration direction extending in an opposite direction to a pipe insertion/receiving direction of the mouth, A lining strip of thermally insulating, closed cell, polyethylene foam 4 is adhered to line the entire interior of the channel with respective foam end portions 5,5 thereof protruding from the channel across the pipe-receiving mouth. One end portion 5 is longer than the other end portion 5, forming a mouth closing, flap. The resulting assembly has an R-value of at least 5. The adhesion can be by double-sided adhesive tape attached between the clamp channel portion and the foam. respectively.

A unitary, pre-insulated pipe clamp/hanger has a conventional C-channel section clamp/hanger-receiving body portion 1 with a pipe receiving mouth 2, a fastening nail receiving mounting portion 3 integrally formed along the exterior of one wall with the nail penetration direction extending in an opposite direction to a pipe insertion/receiving direction of the mouth, A lining strip of thermally insulating, closed cell, polyethylene foam 4 is adhered to line the entire interior of the channel with respective foam end portions 5,5 thereof protruding from the channel across the pipe-receiving mouth. One end portion 5 is longer than the other end portion 5, forming a mouth closing, flap. The resulting assembly has an R-value of at least 5. The adhesion can be by double-sided adhesive tape attached between the clamp channel portion and the foam. respectively.

An insulated tube system, including an inner tube and an outer tube, each of the inner and outer tube including a corrugated wall having ridges and valleys arranged one after the other in the axial direction of the inner and outer tubes, and wherein the outer tube is arranged around and at a distance from the inner tube whereby a gap is formed between the inner tube and the outer tube, a thermally insulating layer arranged in the gap, the thermally insulating layer including a plurality of radial through-openings, each extending through the thermally insulating layer in a radial direction in the gap, and a plurality of radially flexible spacers, each spacer being arranged between the inner tube and the outer tube, each spacer including a top portion configured to contact the outer tube, the top portion having an axial extension along the axial direction of the inner and outer tubes, the axial extension being at least equal to the pitch of the corrugation of the outer tube, each spacer being configured to be compressed radially in response to a force exerted on the spacer by the outer tube, wherein each spacer is arranged in a through-opening in the thermally insulating layer.

An insulated tube system, including an inner tube and an outer tube, each of the inner and outer tube including a corrugated wall having ridges and valleys arranged one after the other in the axial direction of the inner and outer tubes, and wherein the outer tube is arranged around and at a distance from the inner tube whereby a gap is formed between the inner tube and the outer tube, a thermally insulating layer arranged in the gap, the thermally insulating layer including a plurality of radial through-openings, each extending through the thermally insulating layer in a radial direction in the gap, and a plurality of radially flexible spacers, each spacer being arranged between the inner tube and the outer tube, each spacer including a top portion configured to contact the outer tube, the top portion having an axial extension along the axial direction of the inner and outer tubes, the axial extension being at least equal to the pitch of the corrugation of the outer tube, each spacer being configured to be compressed radially in response to a force exerted on the spacer by the outer tube, wherein each spacer is arranged in a through-opening in the thermally insulating layer.

A thermal insulation structure (100) including: a thermal insulation film (200); and a plurality of support members (300) that supports the thermal insulation film (200), in which the thermal insulation film (200) is supported by the support member in a state where tension is applied in an in-plane direction of the thermal insulation film (200), the support member (300) includes a first portion (310) and a second portion (320) that are separated from each other, and one or more third portion (330) that connects the first portion (310) and the second portion (320), and a length of the third portion (330) in an extending direction of the third portion (330) is longer than a distance between the first portion (310) and the second portion (320), the first portion (310) and the second portion (320) are disposed along a direction intersecting a surface of the thermal insulation film (200), and the support member (300) is elastically deformable in the direction intersecting a surface of the thermal insulation film (200), and a structure including this thermal insulation structure (100) are provided.

A thermal insulation structure (100) including: a thermal insulation film (200); and a plurality of support members (300) that supports the thermal insulation film (200), in which the thermal insulation film (200) is supported by the support member in a state where tension is applied in an in-plane direction of the thermal insulation film (200), the support member (300) includes a first portion (310) and a second portion (320) that are separated from each other, and one or more third portion (330) that connects the first portion (310) and the second portion (320), and a length of the third portion (330) in an extending direction of the third portion (330) is longer than a distance between the first portion (310) and the second portion (320), the first portion (310) and the second portion (320) are disposed along a direction intersecting a surface of the thermal insulation film (200), and the support member (300) is elastically deformable in the direction intersecting a surface of the thermal insulation film (200), and a structure including this thermal insulation structure (100) are provided.