We arrange a chimney in the bath with our own hands

Chimney variants

There are several best known chimney variants:

1. The chimney made of bricks is most often chosen for a bath, since this design is extremely durable and durable. In addition, the brick structure has good thermal insulation and is more protected from fire. The known drawbacks of the brick chimney include the presence of roughness on the inner surface of the pipes, which causes deposition of soot, and slows the outflow of smoke to the outside. In this regard, the design has to be constantly cleaned, which creates certain difficulties. The method of installing pipes made of bricks is not the easiest, and it is undesirable to do it yourself. It is better to hire a professional for these purposes or as an alternative to conduct a chimney device made of metal;
2. Installation of a metal chimney( for example, a sandwich construction) is much simpler, and the material at the same time is much cheaper than bricks. The disadvantages of such a sandwich structure of pipes include the condensate formed on the inner surface of the pipe, as well as the need for good thermal insulation( if done correctly, the condensate will not be a significant problem);
3. Chimneys made of ceramics are installed both inside the bathhouse and outside. Ceramic chimney is a construction built of parts of various sizes, in the creation of which burnt clay is used. This makes it possible not only to make the smooth surface of the pipes( through which smoke and soot pass well), but also to maintain a low thermal conductivity. But to install a properly ceramic chimney is rather difficult, the work assumes the presence of certain skills, so novices do not do this by their own hands.

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Each design is selected individually for a particular bath, depending on its location.

If you need a more budget option, then it is better to make a design of metal, if you are not constrained in the means, it is better to build a chimney made of bricks or ceramics.

The video shows baths with different types of chimneys.

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Location of chimneys

If we talk about the location of pipes, then most often in Russia it is used internal chimneys.

Thanks to the creation of additional heating for the steam room, it is possible to reduce waste for fuel, as well as to reduce the time interval for warming up the room.

The installation of this chimney is rather complicated and labor-intensive, which can complicate the installation of pipes with your own hands( it is required to break through the ceiling and roof, and also require a high-quality pipe sealing).

In addition, the internal chimneys have one important drawback: if a fissure is formed in the pipe or a more serious damage occurs, a smoke from the sauna may occur, and even a fire hazard may appear.

External flues for the first time began to be installed in America, and in the future the idea has been widely used.

The chimney unit is connected on one side with the oven, and on the other hand it is led out through the wall to the outside.

The location of the structure on the exterior of the building reduces the risk of pipe damage and excludes the possibility of a related fire.

Carrying care for such a design is also much easier.

The drawbacks in this case include the need for high-quality insulation of the structure.

This is to ensure that the particles of the exhaust gas do not cool before the time, and do not settle on the internal structure of the pipes, which may require their frequent cleaning in the future.

This also negatively affects the heating of the room, which is highly undesirable.

Chimney Shapes

If you are planning to build your own design, you need to think carefully about the shape and calculate the correct size correctly.

The choice of pipe diameter is primarily affected by the capacity of the sauna oven.

Do not forget about the possible difficulties with which smoke can escape from the furnace, so the design diagram should be properly worked out.

Let's study the possible shapes and dimensions of chimneys for this:

• The design of absolutely straight and straight chimneys is considered not very profitable and effective due to high thermal emission, which further causes an obvious over-expenditure of the fuel used for heating the steam room;
• There are chimneys with elbows and pipes not exceeding 1m in length. Installation of such chimneys is difficult to do by one's own hands, but they have high productivity. The chimney must in this case have a cylindrical shape. Installation in this case should be based not only on the construction rules for installation, but also on the characteristics of the type of roof and the dimensions of nearby buildings;
• If the roof is flat, then the minimum height of the pipe should be 1m, if the bath has a sloping roof, then the pipe should exceed the roofing horse by at least 1.5m in height. The length of the pipe from the pipe to the ridge must be slightly more than a meter;
• The distance of the horizontal gaps should not exceed 1 m. This is quite understandable in that hot air, as is known, rises upward, and if it does not have the opportunity to do it through a certain length of travel, it will cause a weak draft and the formation of a large amount of soot on the walls of the pipes.

Remember that if the structure is highly curved and if it has many irregularities, soot and soot will accumulate in it in large quantities.

Because a simple design is much more convenient not only for the installation scheme, but also in terms of performance.

Let's try to install a sandwich of a chimney( a design consisting of metal inner and outer pipes with a layer of thermal insulation laid between them).

Preparatory work for

Before carrying out the sandwich construction, the pipes, adapters, bends, etc. should be prepared.

This removes all the protective film, removes all pasted labels and icons, wiped with a rag stain from oil and grease.

The main part of the chimney is determined and marked from the furnace branch pipe to the passage through the ceiling( roof) of the bath.

In the ceilings and roofing, openings are cut for unobstructed passage of pipes( the size is calculated with thermal insulation).

The video below shows this process.

Wooden joists and rafters must not break the cutting plane at the same time.

This moment, as a rule, takes into account the scheme of the construction of the bathhouse, even during its design( while looking at the location of the oven and the material from which the ceiling is made).

Assembling the chimney

The assembly begins with the bell of the furnace and rises to the ceiling using the "condensate" method. Access to the docking places remains open.

You can achieve full docking using a wooden kiyanku, and tapping it lightly on the material.
In this case, a complete sealing of the possible gaps is necessary.

This requires a sealant capable of withstanding about 1000 degrees of heat.

Fastening of docking connections of sandwich tubes is carried out with the help of crimping clamps( fastening elements, which connect the parts together, and ensure tightness of joints).

And now let's study how the installation scheme of this design is carried out:

• We mount the pipes together using clamps;
• For the elements of the structure we install the brackets for fixing the pipes( after 1.5 m).At the same time, make sure that the distance to the available communications is at least 1 m;
• We install the working channels of the chimney sandwich along the walls of the bath. Tee at the same time we attach the support bracket;
• If the wall next to which the chimney passes is made of wood, the structure should be wrapped with a non-combustible material, such as asbestos. If the wall was made of bricks, then they use a special apron;
• We remove the horizontal pipe and conduct the installation of the tee and brackets necessary for fixing the vertical pipe;
• The vertical pipe, as a rule, is assembled on the ground, and then already assembled into the knee( to simplify the process, hinges made by welding sheets of iron or cutting off pins) are used;
• The vertical pipe is installed in a tee and fastened with pipe clamps. Mounting the hinge with the knee is also performed. In this case, it is necessary to add bolts( where this is possible) to the connection points of the pipes of the chimney sandwich;
• After we stretch the remaining brackets( we first adjust the tension with our own hands, and after fixing the cable, we carry out adjustment through the screws).

We finish the installation, checking the chimney draft of the furnace in the bath.

We ignite a piece of newspaper and bring it to the hole in the oven. If the flame is deflected to the chimney, then there is traction and smoke can pass through the pipe.

Now you know how to properly make a device a sandwich chimney in a bath. To do all the work correctly and as soon as possible, we recommend you to watch our video.

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