Double-walled flue

Double-walled three-layered thermally insulated pipes, the so-called sandwich, composed of internal welded stainless steel pipes and the outer pex tubing (casing) of greater diameter. Inside, they placed a layer of flame-retardant insulating material based on basalt rocks, which excludes strong cooling of the flue gas and minimizes the loss of aggressive condensate. The inner tube is made of quality stainless steel, takes on the impact of combustion products and aggressive media. Guaranteed brilliant performance, as it is resistant to burning, corrosion and acids. Insulation – extruded rock wool insulation on basalt rock. Basalt has a very low thermal conductivity and effective heat-insulating properties that can minimize the formation of aggressive condensate. Applicable material – environmentally friendly, contains no binder resin, and even at high temperature pipe insulation does not emit an unpleasant-smelling substances. The outer tube may be made of stainless steel (including decorative – mirror, textured, colored), steel, or to reduce the cost of construction – from galvanized steel. Decorative Stainless looks good and when installing a chimney inside the house as an integral part in the interior, and exterior installation. There are options for flues with an external pipe, made of copper. They are usually used in the historical city center. Some companies offer venting parts with outer steel tube covered with heat-resistant enamel of different colors. Most often they are used as flues for stoves, fireplaces. Double-walled flue significantly improve the work of heating devices, increase the efficiency of the system, which contributes to more economical operation of heating units.

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