abc 23kW SUPER VULCANO User Manual page 6

WARNING:
The horizontal line of flue pipes must have a slope of minimum 3%.
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The horizontal line length of flue pipes must be minimum and no
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longer than 3m.
The number of flue pipe elbows and T-fittings must not exceed 4.
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4.1 Combustion air
Every combustion process requires oxygen or air. The air taken
from the room must be compensated. The loss of oxygen may occur
in modern houses with high insulation efficiency and perfectly sealed
windows and doors. Unless the stove is connected to fresh air intake,
the room in which the stove is installed shall be more frequently
ventilated.
4.2 Supply of fresh air for combustion
The stove structure has a connection on the back side.
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The fresh air supply pipes may be steel or aluminium. The
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minimum diameter amounts to 50 mm.
The maximum pipe length shall not exceed 4 m in order to ensure
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adequate supply of fresh air. The pipes shall not have too many
elbows.
A failure to provide some of the specified conditions may result in
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poor combustion and vacuum generation in a room.
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