Build Daily

Construction Site

August 12, 2017 18:06

Quality installation of the chimney sandwich pipes

Quality installation of the chimney sandwich pipes

Installation of flue pipes sandwich will make your stove more durable and quality due to the fact that this system is made of high quality steel.

Chimney sandwich pipes can now be found in a growing number of country and private homes, and often it is installed in the bath.

's all about the high rates of safety and performance, as well as ease of installation, which is very important if you decide to install the system on their own.

In this article you'll learn about the pros and cons of this system, as well as how to do it properly with your hands - this will help you guide the scheme, as well as detailed video milestones.


  • Description and characteristics of the system
  • Advantages and disadvantages
  • Installation systems for private houses
  • Features chimney installations for baths

Description and characteristics of the system

scheme chimney sandwich pipe looks likeseveral layers of different materials, which are assembled together into a coherent structure.This device is similar to a sandwich, so they are called sandwich pipes.

body system is composed of two tubes, superimposed on each other and have different diameters.

Pre-between the pipes should be placed gasket - as it is possible to use mineral wool or basalt fiber or other material, wherein high temperature resistance, high degree of counter fire and exposure to chemicals.

Speaking of mineral wool and basalt fiber, these materials, in addition to these properties, also have good thermal insulation and the ability to mute the sound waves.

device and the appearance of the pipes depends on two factors: the purpose of the system and the temperature in the room where it is installed.Also

sandwich pipes can have different heat insulating layer thickness and the diameter of the pipes themselves, which also depends on the type of system and its destination.

Installation and connection of pipes can be produced in three different ways: bayonet, flange and using a cold bridge.

chimney device with your hands implies not only direct but also curved tubes, because the system must be combined with different elements of the design of the house and connect to the roof and ceiling.

These parts of the chimney can be made of pipe fragments, which then have to dock with each other.

chimney system device of sandwich pipe consists of several parts:

  • pipes themselves;
  • tees, which will connect the system with the furnace stove or fireplace (their size affects the diameter of the bending channel, through which goes smoke);
  • system for condensate collection and removal of moisture, which will accumulate on the walls of the chimney;
  • bent pipe elements to be placed on the roof;
  • special tee to allow for the control of the chimney;
  • mouth, mounted on the upper edge of the chimney;
  • console that serves as a support (it is the basis of channels extending across the floor or on the wall);
  • clamp on the wall that allows you to securely fix the chimney.

The structure of the chimney

Advantages and disadvantages

chimney Advantages of sandwich pipes following:

  • they differ attractive outer appearance;
  • fit all boilers and furnaces;
  • can be used both indoors and outdoors;
  • are small, so you can install a chimney, even within a small space, which is not true, for example, on the brick counterparts.

Sandwich pipes are made of stainless steel, so they are resistant to chemical and thermal stresses - these factors are very relevant for the chimney, becausethese compounds are always formed in the system due to fuel combustion.

Another plus - high-quality thermal insulation that protects the outside of the pipe and chimney by condensation, which is especially important if you are installing the equipment with direct extraction.

Since the inner surface of the pipe is completely smooth, you can not worry that it will settle the soot and, therefore, have the chimney cleaned infrequently.

This design, thanks to the thermal insulation has a high level of protection against fire, ascircuit prevents too warm up to high temperature.

Sandwich tube

Due to device design, installation of the chimney with your hands is quite simple - it is possible to lay it between any obstacles asthe system will be able to go around them, plus, to install the system, you will not need to disassemble the roof and floors, which significantly reduces the cost of installation of the chimney.

Save it will be possible to install the foundation, becausefor this type of device does not need it, in whatever room you are not going to install a chimney: a private home, in the bath or a summer kitchen.

same main drawback of the system - the high cost of the pipe, as well as the possibility of reducing the leak, if used for a long time.

However, at the moment it is still the most reliable system: the correct installation of the chimney ensures that it will last you at least 15 years.

Installation systems for private houses

Since most of the installation of the chimney means that he will go through several floors, competent installation - the key to the proper functioning of the system.

It is not so difficult, but before you begin to install the chimney with his own hands, see instructional videos on how to do it.


For the chimney through the ceiling, you'll need a pipe that you want to buy before you start.

Walls need to put insulating material (mineral wool suit), also isolate the inner part of the joints and site design wall connection.

Before starting the installation of pipe, make the ceiling layout area, where he held the chimney and make a hole for him.

places where pipe will be connected to the ceiling of the ceiling, it is necessary to isolate the mineral wool, and when it's done, you can begin the installation of the sandwich pipe with his hands.

If you lay pipes through the wooden walls, on beams, or other areas where there is a danger of fire, the insulating layer should be a few to avoid fire.

making holes, work very carefully, measuring the size and diameter of the pipes - all the elements of the chimney should be loose enough to pass through the prepared hole.

Also, do not forget to leave some space between the pipe and the pipe - it is necessary for natural ventilation and cooling of the entire system.

After the pipe fixed, you need to check how well their position (they must be clearly vertically) and set the protective elements formwork.

Do not forget that sandwich pipes are not suitable for placing in the furnace, and therefore can not serve as the first element of the chimney.

install chimneys start from the bottom, from the heating system in the house.Properly installed pipes to be in each other, the upper tube inserted into their precursor, the elements should be as much as the design dimensions required.

Install pipes of condensate - it prevents the penetration of moisture into the joints through the walls.A layer of insulation also protects against the ingress of moisture.

To improve the sealing of pipes, use the sealant, which temperature range starts at 100 degrees.To improve the fixing of all the elements of the chimney system, use the crimp collars - they will make the system more reliable.

Mount the chimney on the wall and install the strengthening sure the distance in 2 meters, while recognizing that a horizontal section allowable length is no more than 1 meter.

In each of the floors need to install insulation, protecting the wooden elements of the fire.That in the future could easily clean the channel with their hands in the pipe to install the door, or do one of the elements removable.

When mounting is necessary to consider the size of the structure and padding.

For a flat cover is 50 cm - so it must go under the pipe, 50 cm chimney must protrude above the ridge, if the output of it is from the ridge not more than 1.5 meters.

If this distance is 3 m, the dimensions will repeat the height of the ridge.If your roof is made of flammable material, the edge of the chimney must exceed the height of the ridge to 1-1.5 meters.

Installing a chimney

Features chimney installations for baths

Chimney sandwich pipe is ideal for not only in the private residential facility, but also in the bath.

installation in this case would be substantially similar, but make sure that the heat insulation layer is larger becausethe risk of fire in the bath is slightly higher than in a private home.

Some choose flue installation in the bath through the wall - it's no more difficult than to bring him through the roof, but requires a slightly different schemes of work.First, you need to disassemble part of the wall and to strengthen a place in the bracket.

followed by making the outer arm (assemble it with his hands not hard) and attach it to the 2 angles as runners - then you can easily move the tee, mounting the chimney, and the hole will be nothing stuck.

Wall in the bath needs to close the plywood sheet (thickness is enough 1 cm), and attaching the top sheet of asbestos, and on top - a sheet of galvanized metal.

It is necessary to make a hole at the anus, which is fixed with screws.

The last thing you need to cover the bracket paint for metal, which protects the structure from corrosion.The last step you need to make a hole through the adapter - and it puts the sandwich pipe.


In general, the installation of the chimney in the bath with your hands should not cause problems becausethe chimney of the sandwich pipe has a simple design and can be easily installed in any building.

Assemble the chimney through the wall is a little more complicated than usual, but the video will help you to cope with this work and, as a result, a system that will work not worse than those made by professional builders.