Without air utilization, the normal functioning of a single furnace or fireplace is impossible, so together with them you need to think about where the smoke will go. For these purposes, chimneys are made. They are made of stainless steel, asbestos-cement pipes or bricks. Each view has its own characteristics, advantages and disadvantages. Asbestos-cement and steel chimneys are bought in the finished form and simply join the smoke to the smoke. As for the brick - it is placed simultaneously with a fireplace or a stove. For chimneys, there are certain norms and standards - it is SNiP 41-01-2003, section 6.6 is dedicated to heating furnaces (the parameters that the pipes for the chimney should have the parameters). Most often bricks are used, as they not only look beautiful, but also more practical.
1
Before starting to build the chimney, you need to familiarize yourself with its components. For many, this is a common tube, but in fact the parts in it are plenty. The structure of the chimney begins with the foundation. It makes a rectangular shape, a height of at least 30 cm. For the contour of the chimney, the foundation should perform at least 15 cm. The reinforced concrete is considered more practical, but sometimes stones are used in the construction.
2
Seams in masonry are made very subtle - the strength of the structure depends on it. In places where chimney will give in to the effects of high temperatures, a special refractory solution should be used. The most optimal option will be the means of Vetoni, its advantage is that after dilution, it can be used for several days, while other analogues are shelf life - no more than a day. In places where high temperatures do not affect the high temperature, a standard cement-lime-sandy solution is applied.
3
The chimney channels are made rectangular or square shape, and the minimum smoke size must be 140x140 mm. Partitions between channels should not be thinner than 120 mm. In places where the channels are located in the outer walls, and also if the chimney passes through the attic, its external walls must be insulated with mineral wool (5 cm) or additionally put a masonry with a thickness of 250 mm (this is just one brick).
4
When the heating season begins, soot sedates inside the chimney, condensate can flow through the walls - it has a negative impact on any kind of brick. To avoid this, use the guillment method. The essence of it is as follows: a metal tube is inserted into the chimney, which protects the brick from the temperature. Empty space is filled with any insulating non-combustible material. It is also necessary to install special containers where water will be drained. The guilllection method is suitable for old chimneys, and used when laying new ones.
5
An important point is the height, because it depends on this. It is still necessary to build a chimney so that the roof does not catch fire. At an angle of its tilt less than 12 degrees, the output must rise by more than 60 cm. The same distance is necessary in the case when the roof is made of flammable materials. In other embodiments, the chimney is suspended above the roof of 30 cm.
If it was decided to make a chimney to independently, it is necessary to consult with specialists who will prompt what both for a particular building. It should be remembered that incorrectly made chimney can cause fire and eternal problems with smoke.
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