Installation of a chimney from a sandwich pipes has now become the most popular type of assembly of chimneys — first of all, among summer residents and lovers of a bathhouse. This is explained simply: this design is functional, practical and extremely easy in assembly. In other words, the Senbir pipes for the chimney with their own hands are mounted in a very short time even by a person, very far from construction. In addition, users are impressed in them by small weight, small sections length and the possibility of using the most diverse types of compounds. And therefore, all that the installation of the chimney sandwich requires is the choice of high -quality pipes, a little patience and accurate observance of step -by -step installation instructions.
Constructive features of the chimney sandwich
As the name implies, the design of the pipes of such chimneys is a kind of sandwich (or, in the English manner, sandwich), in which two metal shells — external and internal — are separated by a layer of thermal insulation. In this case, the material of the inner pipe is exclusively refractory stainless steel (galvanizing, due to its exposure to transverse deformations at high temperatures, is not suitable). The outer metal shell can be made of the same steel (for solid fuel boilers) or non -ferrous metals (in other cases) — for example, brass or copper. The heat insulator, as a rule, is a mineral wool made of diabase gabbbase or a basalt -based fiber — since the natural stone used in them as the basis in production holds heat well. Polymer fillers are used somewhat less often — polyurethane or expanded clay.
DIY Sandwich’s installation of a chimney allows the sections to connect the sections with five main methods:
condensate (the upper sections are inserted into the lower ones, which guarantees a priority complete drainage of condensate);
smoky (the upper sections are planted on the lower ones, providing good traction and preventing even the slightest output of carbon monoxide with any quality of sealing);
«The bridge of the cold»;
byonet (with displacement and fixation);
flanges.
The only place where Sentifier pipes for the chimney are not installed is the installation of the first section directly connecting to the furnace.
DIY chimney installation from a sandwich pipe
At the first stage, we assemble the sections, inserting the narrowed parts of each of the pipes into the wider holes of the neighboring ones, carrying out the installation of the chimney sandwich with your own hands from the bottom. This process is the most easy, and 5-6 sections of a standard chimney are collected in just half an hour.
The second stage is possible in two versions, depending on the place of the pipe output — through the side wall or roof.
Conclusion through the wall
The wall at the pipe exit is disassembled, after which the place for the installation of an external bracket with the corners attached to it is strengthened (along them, like along the sledge, it will conveniently promote a tubular tee during installation). The hole is closed and sealed first with a plywood, then asbestos sheet planted on self -tapping screws, and then a sheet of galvanizing — it is in them that the adapter will be inserted through which the chimney pipe will pass.
Conclusion through the roof
In this case, the conducted sandwich chimney with your own hands will require fastening on the hole from the inside of the steel sheet from the galvanizing (in addition you can have its edges and under the roof). The section of the pipe sandwich will go through it — and it will be necessary to take into account the elevation of the upper section with the deflector above the surface of the roof (it should be more than 1 meter, and the pipe itself is fixed with stretch marks on the crimp clamps) and the materials from which the roof is collected. If they are not refractory (roofing material, wood, etc. D.), then the deflector will have to be equipped with a shallow -piece sparking.
The third stage is to consolidate the chimney sections. For this, crimping clamps are used, compressed around the knees, tees and other similar elements.
The last, fourth stage is the completion of the installation work of the pipe sandwich. Stretch marks for the upper section of the chimney are fixed on it, a factory protective film is peeled off from the pipes, and all seams are additionally sealed. In this case, the sealant is used only with high heat-resistant characteristics (the standard for such a composition is a guarantee of operational capabilities of a minimum for temperatures 1000-1200 ° C). It is applied for both external and internal pipes always on the outside (including the transition from the first, connecting to the stove of the monostic section to the lower layered sandwich pipe in the chimney).
Finally, for the convenience of periodic cleaning of the chimney sandwich, a small hole with a hermetically closing door is mounted in them. With accurate compliance with all assembly rules, the service life of such a chimney will be at least more than 10 years.