How to make a chimney in the bath with their own hands -

In the old days in Russia, the construction of a bath lasted for a single year, but now you will not surprise anyone with ready-made baths, which are brought directly to the site and collected in a few hours. However, after the builders have left, you are left with a log box, not equipped with a heating device. Therefore, the device chimney in the bath and the installation of the furnace rests on the shoulders of the householder. To do it right with your own hands requires knowledge and experience, because a frivolous attitude to this problem promises increased costs for maintaining the required temperature, the risk of fire and the danger of carbon monoxide poisoning.

Chimney classification

The chimney for the bath can be equipped in several ways, depending on the installation of the furnace. Ways to organize the removal of smoke from the bath are classified according to the following parameters:

1. The material used. To make chimney pipes use metal or heat-resistant brick. Brick masonry is considered a more traditional option, however, modern foremen-masters prefer the metal chimney of a bath stove. Its advantage is quick do-it-yourself installation.
2. Mounting method. The chimney in the bath set inside or outside the building. Installation of an external chimney system is North American technology, according to which pipes are led through the wall to the street. It was developed in response to deficiencies in the internal method, which implies a pipe running through the ceiling to the roof.

The choice of material and the way in which the installation is performed depends on the financial possibilities, the placement of the furnace and the construction skills of the master. Experienced stoves do not recommend those who are satisfied with the chimney with their own hands without experience, do not combine it with the ventilation system, it can be unsafe.

Advantages of a brick chimney

The chimney for the bath was built of heat-resistant bricks before the appearance of metal. This is easily explained by the fact that there was no metal that withstands high temperatures. Making a brickwork of a chimney with your own hands can only be done by a true professional, installation is carried out according to a scheme whose violation will spoil all the work done. Compared to a metal chimney made of brick, it has the following advantages:

• The heat-resistant brick, designed specifically for the creation of furnaces, demonstrates high thermal insulation and heat-conducting properties, thanks to which the brick chimney effectively stores and accumulates heat inside the steam room.
• Long service life. A chimney made of high-quality bricks, laid out with their own hands in compliance with the technology, lasts much longer than metal counterparts, and therefore does not require periodic replacement.
• High protection against fires. Fire-resistant brick does not burn and does not spread fires. Since the bath belongs to rooms with a high risk of open fire, the fire-fighting properties of a brick can save the property and the life of the owner.

It is important to clean brick chimney pipes in a timely manner, as its rough structure accumulates ash, dust and other contaminants, reducing furnace traction or leading to smoke from the bath.

Metal chimney device

For those who make the chimney for the furnace with their own hands metal pipes are ideal, reducing material costs and installation time. In the building stores sell ready-made systems consisting of straight pipes, branches and clamps. In favor of metal pipes says:

1. Affordable price. The cost of a metal chimney is several times lower than that of a brick pipe. In addition, the installation of a metal chimney is done with my own hands, and this saves the customer a considerable amount, which he would pay to a professional furnace master.
2. The surface of the metal pipe is smooth, even slippery, so the soot and other small particles do not linger on it. This allows the air to rise up under the action of the temperature difference inside and outside in a single, directional flow.

The only drawback of this method of organizing a chimney stove is that metal pipes do not have such insulating qualities as brick counterparts, because of this, in winter, when the difference between the internal and external temperature is maximum, condensate settles on the inner surface sandwich pipes, protected by a layer of insulation.

Selection of elements of the chimney system

If you decide to install the chimney with metal with your own hands, it is important to choose the right cross-section of pipes. Manufacturers of furnaces indicate the recommended diameter for each model in the instructions. In the absence of this information, this parameter is calculated based on the power of the furnace, the height of the chimney and the number of turns. However, it is better to entrust the calculations to an experienced consultant, since it depends on the draft and the safety of the chimney.

Please note that the length of the horizontal segments of the pipes should not exceed 100 cm; neglect of this simple rule threatens the furnace with weak soot and soot deposits inside.

If you take the chimney through the wall, it will be right to place it at a distance of 50-60 cm from the edge of the overhang. When mounting the pipe through the roof, try to place it 50-150 cm from the ridge. If the location of the furnace does not allow this, the chimney umbrella is raised 1.5 or more above the highest point of the roof. Usually, the internal chimney system is laid vertically, if necessary, change the direction of the use of the knee with an angle of 45 or 90 degrees. To the seller correctly picked up the chimney for stoves, it is better to make its scheme with dimensions.

Mounting technology

For an inexperienced master it is better to opt for an internal chimney made from metal pipes, which is discharged through the roof and ceiling of the bath. Do-it-yourself installation looks like this:

1. Purchase pipes, pipe bends of suitable diameter, clamps, an umbrella, rubber sealing for waterproofing, fireproof asbestos, and expanded clay.
2. Before installing the stove, the surface behind it is protected with two layers of refractory asbestos.
3. After installing the stove on a pipe located above the heater, the first pipe segment is installed, fitted with a gate valve. With the help of the gate adjust the force of thrust during the kindling and after its completion. With the valve partially closed, the flow of air passing through the chimney decreases, keeping the heat in the bath longer.

   In order to properly connect the chimney sections, it is necessary to take into account the course of the smoke, that is, the upper pipe is put on over the lower one. For sandwich pipes, one should also keep in mind the movement of condensate; therefore, the inner pipe is connected “by smoke”, and the outer one “by condensate”, that is, the upper segment is inserted into the lower one.

4. The ceiling is cut to bring the pipe into the attic. A good way to insert a pipe through the ceiling is to install a metal box. It is attached to the floor in such a way that it is flush with the attic floor. A chimney is conducted through the hole in the box, and the box is tightly covered with expanded clay or mineral wool. The ceiling is protected from fire by asbestos plates.

   

5. In the roofing material is made a hole for the withdrawal of the pipe. To fit between the truss legs, use taps that allow you to make a hole in a convenient place. If the roofing material is combustible, it is protected with a metal sheet or asbestos, the pipe is pulled out into the hole, an elastic rubber sealant is put on it and glued with fire-resistant sealant.
6. Install the chimney segments so that it reaches the required length. A metal umbrella is put on the top to protect the chimney from debris, branches, rain.

It is important to make sure that the joints between the pipe segments do not fall on the floor in order to seal and pull off the wide metal clamps.

A qualitatively mounted chimney for a bath is a sign of a real Russian bath in which it is warm even 6-7 hours after the completion of the firebox.

Video instruction