Russian products today are almost not inferior in their quality and operational characteristics to foreign analogues, which have a higher cost. As an example, we can consider modern Kraft chimneys, which are made of stainless steel and are characterized by high performance characteristics. These designs have the form of modular systems, which are based on high-strength steel, it is heat resistant and resistant to acids. Therefore, the material is able to effectively resist aggressive substances.
Description
Chimneys "Kraft" today can be purchased in several varieties. Some of them are represented by systems for liquid fuel or gas condensing boilers, other designs are designed for heating stoves or home fireplaces, while others are used as a component of coal heating devices. In the manufacture of the former, AISI 316 steel is used, which is capable of undergoing exposure to high temperatures. Such chimneys can be operated with a wide range.
Those products intended for simple heating stoves and home fireplaces are made of AISI 321 steel. It is a stainless steel, which is additionally strengthened with titanium. This approach made it possible to achieve maximum corrosion protection. The chimneys are multi-layered and protected against condensation, they can be operated for several decades without losing quality characteristics. If you are interested in Kraft chimneys for coal heating systems, then you should know that they are based on AISI 310 steel. It is characterized by high heat resistance and is able to withstand temperatures up to 1000 ° C.
What else do you need to know about Kraft brand chimneys
If you have two-layer chimneys in front of you, then they have Rockwool insulation material, it is represented by fire-resistant basalt wool. It is able to prevent the cooling of the pipe and to prevent the accumulation of liquid, which ensures uniform combustion.
Product Prices
Chimneys "Kraft" are presented today for sale in a large assortment, among the varieties of the components of this system you can find accessories and different types of chimneys. For example, deflectors cost 1800 rubles. and higher, while bends - 689 rubles. For a sandwich pipe 500 will have to pay 2600 rubles.
Installation instructions
Installation of chimneys should be carried out in conjunction with plugs that are equipped with condensate drains. As an alternative solution, an audit may be used to serve the channel. When the roof is made of non-combustible materials, an arrester must be installed in the chimney, it is made of a grid with a square cell, the side of which is 5 mm.
When designing and installing the chimney, a narrowing of the system is not allowed, but it is quite possible to expand it somewhat. This may be necessary to assemble the chimney of the furnace, the outlet diameter of which is 140 mm. In this case, it is impossible to purchase a chimney, the cross section of which is 120 mm, but it is quite possible to use 150 mm, and an adapter is needed.
When you equip horizontal sections, you must remember that their length should not be more than a meter. The interface between the elements of the chimney should not be at the points of the roof passage and ceiling, as well as the passage in the wall. Tees and bends must be installed in such a way that they do not exert a load from the elements of the chimney.
Work with additional elements
Installation of chimneys may include the use of additional elements, which are:
- convectors;
- grid;
- water tank;
- heat exchanger tank.
The convector should be installed on a heating or bath stove, and its task will be the selection of heat for the chimney. The grid should be placed on top, it is intended to increase the volume of stones. Water heaters for stoves are installed on top of them and are designed to heat water to a boiling point. The water heats up quite quickly, because the pipe passes through the tank. Before use, the water must be cooled or diluted.
The heat exchanger is used in conjunction with an expansion tank and is used in conjunction with fireplaces, heating or bath stoves. Water heaters are located on top of furnaces and are designed to heat the liquid to a boiling point.
Arrangement of nodes of passage through the ceiling and roof
When chimneys are installed, they must be carried through the ceiling. In this case, a passage unit is used, which should be 70 mm more than the thickness of the ceiling. Sometimes in heat-generating devices, an elevated temperature of the exhaust gases is noted. Such conditions require that insulated chimneys be used, they are supplemented by insulation and ensure fire safety. Pipes also pass through the roof, while using a roof cut or a silicone flash seal “Master Flash”, which is used for a flat or corner roof. When installing the chimney, building codes and fire safety rules must be observed. It is important to remember that the chimney heats up during use. If it passes near building structures, which are based on combustible materials, it should not heat them above 50 ° C.
Features of the chimney mount
Chimneys "Kraft", the prices of which were mentioned above, should be fixed with the exception of the possibility of deflection or displacement under own weight or from the wind of any elements. To do this, use the wall mount, which is installed at the rate of one unit for every 2 m of the chimney. The step from the chimney to the wall will depend on the wall mount used.
Assembly
Modern chimneys must be installed, starting from the bottom of the heating or heating device. All joints of elements and pipes, as well as tees and waste must be sealed with heat-resistant mastic. Moreover, the components must be connected to the entire depth of the planting bell, fastening the elements with a crimp clamp.
Conclusion
Regardless of whether the chimneys were used insulated or ordinary, after the installation is completed, it is necessary to conduct a test firebox, during this it is important to check the tightness of the joints and make sure that the adjacent structures are not exposed to high temperatures. If they are made of combustible materials, then they should not be very hot.