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appliance; to avoid this, it is necessary to intubate the appliance for its entire height. A section which is too small
causes a reduction in draught.
The flue must be suitably distanced from flammable or combustible material using suitable insulation or an
air space.
It is FORBIDDEN to pass system piping or air ducts inside the flue. It is also forbidden to create moveable or fixed
openings on the flue itself, for the connection of further different appliances.
IMPORTANT: refer to chapter 16.
5.1.
POSITION OF THE CHIMNEY POT
The flue draught depends on the suitability of the chimney pot.
It is therefore essential that, if built in a handcrafted way, the exit section is more than twice the internal section of the
flue. As it must always go past the ridge of the roof, the chimney pot must ensure exhaust even in the presence of
wind. (Picture 6).
The chimney pot must meet the following requirements:
•
have an internal section equivalent to that of the chimney.
•
have a useful exit section of double the internal section of the flue.
•
be built so as to prevent rain, snow or any foreign body entering the flue.
•
be easy to inspect, for any maintenance and cleaning operations.
(1) Industrial chimney pot
with
components,
excellent
disposal.
50 cm
2 m
1
m
26
prefabricated
allowing
flue
gas
10 m
(2) Handcrafted chimney
pot. The correct exit section
must be at least twice the
interna l section of the flue,
ideally 2.5 times.
(1) If there are flues which are side by side, one
chimney pot must surpass the other by at least 50
cm in order to avoid pressure transfers between the
flues themselves.
(1) The chimney pot must not have obstacles within 10 m such
as walls, slopes or trees. If this is not the case, raise the pot by
at least 1 m above the obstacle.
The chimney pot must surpass the roof ridge by at least 1 m.
TermoSovrana DSA
(3) Chimney pot for
steel flue with internal
flue gas deflector cone.
Picture 6
Picture 7
Picture 8
7094211 – EN
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