HITZE SIGA - The Combustion Gas Outlet System Should Have the Following Features

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2.6. The combustion gas outlet system should have the following fea-
tures:
▪ the cross section of the ue pipe may not be smaller than the cross section of the chimney duct and it may
not become narrow towards the chimney (between the ue pipe and the chimney, the diameter can be
increased through the use of mounting adapters);
▪ the path of the combustion gas duct should be as short and straight as possible (bends increase ow
resistance and facilitate the accumulation of condensed moisture);
▪ it is forbidden to connect the stove to the same chimney duct with another heating device;
▪ the stove should be connected to its own chimney duct;
▪ the combustion gas duct may not have more than two inclinations of 45° when its length does not exceed
5 m and of 20° when it is more than 5 m long;
▪ the combustion gas duct must be made from non-combustible materials and it must be thermally
insulated;
▪ the insulation of the ue pipe must ensure re resistance for at least 60 minutes;
▪ the ue exit should be followed by a straight pipe with a minimum length twice as long as the diameter
of the stove ue;
▪ the connector must be leak-proof;
▪ the end of the chimney should ensure a trouble-free outlet for combustion gases and it should be placed
at least 60 cm above the highest point of the roof;
▪ the connectors must be made from stainless, heat-resistant steel 1.4401 (316) or replace steel, painted
with a special paint. The metal sheet must have an appropriate thickness (heat-resistant and stainless steel
must be 1mm thick, replace steel - 2mm) and be resistant to high temperature, the acidity of combustion
gases and condensed moisture.
Fig. 6
The scheme of connection of the stove to the chimney
duct
1. chimney duct,
2. cleaning window,
3. the intake of cold air from outside,
4. rosette,
5. sealing mortar,
6. non combustible material.