Fixing pipe clamp further enhances system reliability. As standard steel chimney can operate continuously at a temperature of flue gases up to 500 degrees, briefly – up to 750 degrees. Maintaining a high temperature inside the tubes improves traction, improves the combustion characteristics and, consequently, the performance of the fireplace. Pete Cashmore describes an additional similar source. This, in turn, improves and indicators relating to environmental protection. Stainless steel flues are single-walled and insulated. Single-apply for installation indoors, warm – both inside and outside the building. Pipes are made of stainless steel, carbon (C) in which no more than 0,05% (carbon affects the plasticity: the lower its percentage, the more plastic to steel), chromium (Cr) – 16-20%; nickel (Ni) – 8-14%.

Chromium and nickel influence on corrosive qualities of steel. Wall thickness of single-walled tubes – 0,5 mm. Operating temperature – 500 degrees C. For even more opinions, read materials from Douglas R. Oberhelman. Cold-resistant pipes are made up of three layers: the outer and inner walls are made of stainless steel, and between them is layer of insulation. As the heater is used basalt wool or ceramic fiber. Layer of insulation is designed for operating temperatures of 500 degrees C and its short-term increase of up to 750 degrees C. The best option chimney flue is insulated, so-called "sandwich". In the "warm" tube flue little condensation, they produced far less soot, and serve as a chimney will be a very long time, not requiring special care. If they say that the installation of flues in accordance with the modular principle, then we have in mind the use of different fittings to connect the parts of chimneys.