Method of installing exhaust tube

Patent metadata

Field	Value
Publication number	US-2016060873-A1
Application number	US-201414475351-A
Country	US
Kind code	A1
Filing date	Sep 2, 2014
Priority date	Sep 2, 2014
Publication date	Mar 3, 2016
Grant date	—

Abstract

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.

First claim

What is claimed is:

1 . A method of installing an exhaust tube through which combustion gas produced in a combustion apparatus placed on an inside of a building is emitted to an outside of said building, said method comprising:
a first inside step including the step of, by an operation on the inside of said building, inserting, from the inside of said building toward the outside thereof, an exhaust tube into an exhaust pipe already placed and leading from the inside of said building to the outside thereof; an outside step including the step of, by an operation on the outside of said building, fitting an exhaust adapter having an annular shape into a gap between an outer circumferential surface of said exhaust tube and an inner circumferential surface of said exhaust pipe to close said gap and fix said exhaust tube to said exhaust pipe; and a second inside step including the step of, by an operation on the inside of said building, connecting a rear end portion of said exhaust tube and an exhaust vent of said combustion apparatus, said first inside step, said outside step and said second inside step being performed in this order.

2 . The method of installing an exhaust tube according to claim 1 , wherein said first inside step further includes, after the step of inserting said exhaust tube into said exhaust pipe, the step of temporarily fixing said exhaust tube to said exhaust pipe by a fixing member so as to prevent said exhaust tube from slipping down by a self weight.

3 . The method of installing an exhaust tube according to claim 2 , wherein, in the step of temporarily fixing said exhaust tube, said exhaust tube is temporarily fixed by said fixing member such that said exhaust tube can be moved relative to said exhaust pipe when a prescribed amount or more of external force is applied.

4 . The method of installing an exhaust tube according to claim 1 , wherein, in the step of inserting said exhaust tube into said exhaust pipe, said exhaust tube is inserted into said exhaust pipe until a tip end portion of said exhaust tube reaches the outside of said building.

5 . The method of installing an exhaust tube according to claim 1 , wherein
said first inside step further includes the step of attaching an insertion jig to a tip end portion of said exhaust tube before the step of inserting said exhaust tube into said exhaust pipe, and said insertion jig has a protruding portion curved convexly, and said protruding portion protrudes to a side opposite to said exhaust tube and covers an opening at said tip end portion of said exhaust tube in a state where said insertion jig is attached to said exhaust tube.

6 . The method of installing an exhaust tube according to claim 1 , wherein, before said first inside step, an outside end portion of said exhaust pipe located on the outside of said building is provided with an exhaust terminal including at least an exhaust port through which said combustion gas is emitted to outside, and a ceiling wall.

7 . The method of installing an exhaust tube according to claim 6 , wherein said outside step further includes the steps of:
removing said exhaust terminal from said exhaust pipe before the step of fixing said exhaust tube; and attaching said exhaust terminal to said outside end portion of said exhaust pipe after the step of fixing said exhaust tube.

8 . The method of installing an exhaust tube according to claim 7 , wherein said outside step further includes, after the step of removing said exhaust terminal and before the step of attaching said exhaust terminal, the step of adjusting a length of the exhaust tube protruding from said outside end portion of said exhaust pipe so as to fit to a shape of said exhaust terminal.

9 . The method of installing an exhaust tube according to claim 6 , wherein said outside step further includes, after the step of fixing said exhaust tube, the step of attaching, to said tip end portion of said exhaust tube, an exhaust straightening member including a circumferential wall portion having a cylindrical shape and a plurality of openings through which said combustion gas flows out toward said exhaust port of said exhaust terminal, and a cover portion that closes one end of said circumferential wall portion.

10 . The method of installing an exhaust tube according to claim 1 , wherein said second inside step further includes, before the step of connecting said rear end portion of said exhaust tube and said exhaust vent of said combustion apparatus, the step of adjusting a length of said exhaust tube protruding from an inside end portion of said exhaust pipe located on the inside of said building in accordance with a distance between said inside end portion of said exhaust pipe and said exhaust vent of said combustion apparatus.

11 . The method of installing an exhaust tube according to claim 1 , wherein said second inside step further includes the step of attaching a protection tube for protecting at least a part of said exhaust tube extending from said exhaust pipe to said combustion apparatus.

12 . The method of installing an exhaust tube according to claim 11 , wherein
said protection tube can expand and contract in an axial direction, and said second inside step further includes the step of adjusting a length of said protection tube by causing said protection tube to expand or contract in accordance with a distance between said exhaust pipe and said combustion apparatus.

13 . The method of installing an exhaust tube according to claim 1 , wherein
said combustion apparatus includes a burner producing combustion gas and a fan that supplies air to said burner, and said second inside step further includes, after the step of connecting said rear end portion of said exhaust tube and said exhaust vent of said combustion apparatus, the step of changing setting of an air-blowing capability of said fan in accordance with a length of said exhaust tube.

14 . An installation member set including a plurality of installation members used in the method of installing an exhaust tube according to claim 1 , said installation member set comprising:
a first member set having a first package and said installation members housed in said first package and used in said first inside step; a second member set having a second package and said installation members housed in said second package and used in said outside step; and a third member set having a third package and said installation members housed in said third package and used in said second inside step.

15 . The installation member set according to claim 14 , wherein said second package has a holding member for allowing said second member set to be held in a state where both hands of an operator can be used in said outside step.

16 . A method of placing a combustion apparatus, said method comprising the steps of:
installing an exhaust tube using the method of installing an exhaust tube according to claim 1 ; and placing said combustion apparatus on the inside of said building.

17 . A method of replacing a water heater using the method of installing an exhaust tube according to claim 1 , said method comprising the steps of:
removing a hot water storage-type water heater placed on the inside of said building; installing said exhaust tube; and placing said combustion apparatus on the inside of said building, said combustion apparatus being an instantaneous water heater.

Assignees

• Noritz Corp

Inventors

• Sugatani Masaki

Classifications

• F24F13/0254

  characterised by their mounting means, e.g. supports · CPC title

• E04D13/178 Primary

  on the eaves of the roof · CPC title

• F16L55/1652

  the flexible liner being pulled into the damaged section · CPC title

• F16L59/121

  for pipes passing through walls or partitions · CPC title

• F23J2213/60

  Service arrangements · CPC title