LA NORDICA TERMOROSA DSA Instructions Pour L'installation, L'utilisation Et L'entretien page 26

Since it is necessary to exceed the ridge of the roof, the chimney cap must ensure the outflow even in presence of
wind (Picture 6).
The chimney cap must respect the following requirements:
•
have an internal section equivalent to that of the chimney.
•
have useful exit section double to that inside the flue.
•
be built in a way to avoid penetration of rain, snow and any other foreign body into the flue.
•
be easy to inspect, for any maintenance and cleaning.
(1) Prefabricated industrial
chimney cap optimum
smoke dispersion.
50 cm
2 m
1
m
26
(2) Artisan chimney cap. It
must have minimum free
opening of flue size x 2,
ideally 2.
10 m
(1) There must be no obstruction (wall, tree or high ground) within 10
m of the chimney cap. On the contrary, raise the same by at least 1 m
above the obstacle.
The chimney cap must always be at least 1m above ridge level.
>A
H min.
(1)Asse colmo
α
(1) Where two flues are side by side one chimney cap
must be higher by a minimum of 50 cm to avoid pressure
interaction.
> _ A
0,5 m
(2)Tetto
TERMOROSA
(3) Steel conical chimney
cap with internal
deflector.
1) Ridge axis
2) Roof
7097501 – EN
DSA
fume
Picture 6
Picture 7
Picture 8
Picture 9