4
• Each appliance must have its own flue with
a cross-section equal to or larger than the
diameter of the flue gas exhaust pipe of the
stove and no lower than declared.
• There must never be two stoves, a fireplace and
a stove or a stove and a woodburning cooker,
etc. in the same environment, as the draught of
one could hinder the draught of the other.
• Collective ventilation ducts which can create
a vacuum in the installation environment
are not allowed, even if installed in adjacent
environments communicating with the
installation room.
• It is forbidden to make fixed or movable
openings on the flue to connect appliances
other than the one used.
• It is forbidden to have other air ducts or pipes
pass through the inside of the flue even if
oversized.
• It is recommended that the flue be equipped
with a collection chamber for solid materials
and condensation located underneath the
flue inlet so that it can easily be opened and
inspected from an airtight door.
• When using flues with parallel outlets, raise the
upwind chamber by one notch.
• The flue pipe must respect the foreseen
distances from combustible materials
according to standards in force.
Chimney
The chimney must meet the following
requirements:
• Have a cross-section and inner shape like that
of the flue.
• Have a useful outlet cross-section no less than
double that of the flue.
• The chimney coming out of the roof or in
contact with the outside (for example for open
lofts) must be covered with bricks and, in any
case, well-insulated.
• Be built in such a way so that rain, snow or
foreign objects do not enter the flue and that
winds in any direction and inclination do not
hinder the exhaust of combustion products
(windproof chimney).
• The chimney must be positioned to guarantee
sufficient dispersion and dilution of combustion
products and, in any case, outside of the reflux
area. The different dimensions and shapes of
this area depend on the inclination angle of the
roof making it necessary to use the minimum
heights (Fig. 2).
• The chimney must be windproof and higher
than the peak.
• Any buildings or other obstacles higher than
the chimney must not be too close to it.
Installation
Fig.2: chimney features
YES
NO
