The chimney acts as an indispensable component of the heating system. The efficiency of heating and the safety of operation will depend on how correctly it can be built. That is why it is necessary to inquire about its device even before its construction. Choosing a chimney for the furnace, you can consider several varieties of such designs, they can be:
The technologies for arranging these chimneys are similar, but there are some differences. It is important to consider that each design can be used in a particular case.
Wall chimney device
The wall chimney for the furnace is part of the wall and passes through its internal space. It is important to consider before planning construction work that the wall should be made of red brick. Sometimes there are surfaces made of wood, but the place under the chimney in this case should be faced with red brick.
Considering such a chimney for the furnace, it should be noted that the walls of the assembly should be larger than 1/2 of the brick in thickness. In the place where the furnace joins the chimney, there are flip sleeves, which are elements with a horizontal direction. They act as part of the smoke channel.
The channels are laid out of brick, but the sleeves should not be longer than 2 m in length. For the sleeves, steel pieces in the form of corners are used, which are laid in the furnace at the stage of its construction. The outlet channel should be 6.5 cm below the steel corners. The ends of the corners are sealed in the chimney, and in the pipe they should be located at the same distance, i.e. 6.5 cm.
Corners usually have a horizontal arrangement or a slight slope directed towards the smoke exhaust. Laying out such a chimney for the furnace, you will need to form the walls of the sleeve, the thickness of which is equal to a quarter of the brick. This indicates that the products should be laid on the edge. It is important to ensure vertical dressing of the seams.
The assembly of the unit assumes the presence of a base, which is located on the top of the furnace or on the floor. The foundation will look like a concrete platform. She must have an equal footing. After the laying of the first row begins, it is necessary to use a clay solution. It is important to align the corners. Then, further bricking is carried out, in which a hole is made in the chimney with a door for preventive cleaning. If we are talking about a private house, then galvanized sheet steel should be laid in front of the furnace, the same technology needs to be worked on, working over the chimney sleeves.
The device of the main chimney
Chimneys for bath stoves are presented in several varieties today. They may be indigenous. In this case, the unit will have a foundation for which a foundation pit is prepared, taking into account the dimensions of the chimney. The internal space of this part of the furnace should be equal to 135 x 260 mm, only under such conditions it will be possible to guarantee smoke removal and normal traction.
It is necessary to deepen the pit by 30 cm. To fill its bottom is gravel or gravel, which is closed by sand. The layers should have approximately the same thickness, which is 15 cm. The pillow is compacted and well aligned.
A bath stove, the chimney of which will have a basic structure, involves the presence of a leveling screed, which is prepared from cement mortar. Make the composition necessary liquid, which will ensure evenness of the surface. Once the screed has dried, you can start laying the chimney.
Specialist recommendations
First, the first layer of brick is arranged, then you can proceed to derive the corners using the building level or plumb. Laying should be carried out to a level where you have to attach the sleeve to the furnace. Its fastening is carried out by metal corners, the second ends of which must be installed in the chimney, as in the case described above. The junction is coated with a clay solution. Masonry should be carried out with dressing in half a brick.
When to choose a wall mounted chimney
Chimneys for bath stoves can also have a mounted design. It can also be used for solid fuel boilers. Installation is carried out directly on the stove or fireplace. Among the advantages, the possibility of using asbestos-cement or steel pipes should be highlighted.
Chimney device
Boilers, stoves, chimneys which are usually mounted on top, can be installed independently. That is why, before starting work, it is necessary to take an interest in the device of this heater unit. The difference in technology in this case is only that the chimney will be adjacent to the furnace.
The system will not have a foundation, and the heater itself will act as a base. However, there are still a few tips that you must apply when building a chimney yourself. The design should be brought to the ridge of the building, and when choosing the height of the pipe, be guided by the distance to the ridge. The most suitable parameter in this case is 0.5 m above the ridge if the distance to it is less than 1.5 m.
If wooden buildings are close by or trees that could come in contact with the pipe grow, you can build up the unit with a ceramic pipe, which will reduce the risk of fire. At the end of the chimney, a visor should be installed that protects the pipe from rain and debris. The scheme of the chimney of the furnace assumes the presence of a grid that is located inside the chimney at its end. This will prevent the escape of unburned particles, such as paper.
Conclusion
Quite often, coaxial chimneys are also used for furnaces , which can have a bend with a right angle of rotation. The design must include a tip, connecting clamps and decorative pads. The device should begin with the choice of the place where the pipe is brought out into the street. It should be closer to the heater.