The construction of a good brick chimney can not be compared with the installation of a conventional steel pipe, since carrying out these works is accompanied by more impressive difficulties. It is important to pay attention to each seam, since the safety of those who will use the furnace will depend on the tightness.
Fire safety
Equipping a chimney in the bathhouse with your own hands, it is important to strictly comply with fire safety rules. The main task of any chimney is the removal of fuel combustion products from the internal space of the room where the furnace is installed. The traction that needs to be provided inside the pipe will contribute to this process. It is the traction force that will remove the exhaust fumes and guarantee the flow of oxygen into the combustion chamber, which will support the combustion process.
If you are installing a chimney in a bathhouse with your own hands, then you should know its advantages. So, the main advantages of a brick chimney is the fact that in any weather the draft of this design will be excellent, the appearance will remain excellent, but the life span will be much longer than that of a steel pipe. Before starting work, it is necessary to determine by which technology the work will be carried out.
The main elements of a brick chimney
Before you build a chimney in a bathhouse with your own hands from a brick, you need to determine what elements it consists of. At the very beginning there is a casing pipe, which is laid out in compliance with a special dressing. For 6 rows before the overlap, this component should be completed, since after the neck of the fluff begins. The flue is an expansion of the chimney, however, the cross-section must remain the same as along the entire length of the pipe. The expansion falls only on the outer part of the fluff, with a thickness of 25-40 centimeters. That part of the chimney that will go into the attic is called a riser, this element goes exactly up to the roof.
Installation of the chimney in the bathhouse with your own hands involves the presence of an otter, which acts as the next node. This element is an extension on four sides, it should not be less than 10 centimeters. Thanks to this element, precipitation does not penetrate into the grooves between the chimney and the roof. After the otter, the neck should be laid, its size is the same as that of the chimney itself. It is necessary to complete its arrangement with the extension, which forms the tip of the chimney. A cap made of metal is mounted on it, you can replace this element with a deflector, which eliminates the chimney from the penetration of snow and rain, as well as garbage and small birds. Actually, this element is also necessary for traction.
Chimney masonry
The chimney in the bathhouse with your own hands, the photo of which is presented in the article, must fit into several stages, the first of which involves the preparation. Initially, you need to decide which circuit the design will have. In order to lay the chimney, it is necessary to equip a rectangular foundation for it. It can be made of solid brick or concrete, which must be reinforced with steel reinforcement. The main condition here is that in height it should be equal to 30 cm or more. The foundation should be 15 cm wider than the chimney itself.
Chimney masonry recommendations
Before you make a chimney in the bathhouse with your own hands, you must consider that no matter what the height of the bathhouse, the chimney must be at least five meters high, otherwise the draft will be poor. It is necessary to equip the structure with the use of refractory or red solid brick. As a binder component, a mortar made of lime and cement or sand and cement should be used. In areas where the temperature will be especially high, a mixture intended for laying the furnace should be used .
If you build a chimney in the bath with your own hands, then you will certainly have the task of cutting a brick. To chip an element from the product, you can use a grinding and cutting machine, but first the product must be marked with a marker. Such an approach will make it possible to make accurate plates for the smoke channel in the otter and butcher zone. The seams must be made thinner when the chimney in the bath is laid out with your own hands - this will provide higher reliability and stability of the structure. The most suitable joint thickness is 15 millimeters. To equip the otter and cutting, steel rods should be used, their installation should be carried out in brickwork, while the fittings should not cross the smoke channel. The height and width of the structure will depend on how thick the joints are, they must be the same. The thickness of the chimney walls should be approximately 10 centimeters, which guarantees fire safety.
Specialist advice
Doing the chimney in the bath with your own hands, you must leave holes for cleaning the structure. The walls of the chimney should be flat, while the corners should be set so that they are straight. The internal base of the structure should be finished with plaster, which will ensure smoothness. This need is due to the fact that an uneven surface will prevent the penetration of gases, in addition, soot will settle. This will impair traction, and the inner surface may eventually catch fire, which increases the danger. Plaster should be applied correctly. Experts believe that the chimney must be bleached from above, this will allow the analysis of soot seepage through existing slots.
Installation of thermal insulation and chimney fastening
If the chimney in the bathhouse is set up near the wall with your own hands, it is necessary to fix it for higher reliability with steel anchors with a step of 30 cm. Where the structure will be connected to the ceiling and roof, you need to install asbestos-cement fabric, which is sometimes replaced with fiberglass. Despite the fact that the brick heats up slowly, the risk of fire must be minimized. Another requirement is that the chimney should rise 0.5 meters above the ridge, which is very important. The outer part of the structure, which is located above the roof, must be insulated, and also trimmed with facing bricks. You can use roofing for work.
Varieties of brick for chimneys
When arranging the chimney, chamotte or ceramic solid red brick should be used. The difference between them will consist only in the temperature that each of these materials can undergo. Thus, the red brick will be able to withstand 800 degrees, while fireclay withstands 1000 degrees. All other options like porous, hollow or lightweight bricks should not be used. When choosing a solution, it is necessary to consider that below the level of the roof you need to use a mixture based on lime and cement. Whereas the areas located above the roof should be laid using a solution of sand and cement.
Finally
Now you know that when making a chimney in the bathhouse with your own hands, you must follow all the above rules, this will allow you to get a design with the qualities of strength and fire safety. Equally important is efficiency. And if you do not follow the rules, then the removal of flue gases will not occur normally, which can lead to very unpleasant consequences. Therefore, do not save on material.