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Flue gas system
Connections
Air-/ flue gas ducts– installation variants for individual boilers
Ambient combustion air
B23
Flue gas duct into the chimney, aspiration of air from the surroundings.
End section of the flue gas duct above the roof.
B33
Flue gas duct into the chimney, aspiration of air from the surroundings.
End section of the flue gas duct above the roof.
Combustion air taken from outside
C13
Flue gas duct and suction air over the outer wall, must be in the same
square area.
C33
The flue gas and suction air ducts via the roof terminal, must be in the
same square area.
C43
Suction air and flue gas duct via the chimney system, which is
integrated in the building.
C53
Section the air and flue gas exhaust to the outside, in areas with
different pressures. Vertical end section of the flue gas duct.
C63
Specially developed equipment, for connection to certified air-flue gas
systems that operate separately from one another.
C83
Specially developed equipment, for connection to certified air-flue gas
systems that operate separately from one another.
C93
Air and flue gas piping to the flue gas chimney, via installation in the
roof and in a humidity-resistant flue gas chimney.
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