ENGLISH
10
7. GENERAL RULES FOR CREATING THE FLUE
A few simple, yet important, rules to follow for safe constructing a flue are here explained (for further
information, please read the UNI 10683 regulation).
•
Safe and correct pellet boiler operations depends on the connection to a single and independent flue. No
other fireplace, stove, boiler, aspiring hoods, etc., are to be connected to the same flue (see fig.3).
•
This machine needs to expel products resulting from combustion via a vertical flue that has a suction
pressure between 6 and 8 Pa, in order to constantly guarantee the expulsion of smoke, even with the
absence of electric power or adverse conditions.
•
The part of the flue that extrudes from the roof or remains in external contact must be covered with tiles or at
least well insulated.
•
The stack must be wind resistant, with an internal section that is equal to that of the chimney, a useful
section at least twice the size of the chimney, and protect from any rain coming in.
•
Any other building , plants or other obstacle that are higher than the roof must be positioned at least 3 m
away from the stack.(see fig.4).
•
Whenever using two flues with parallel exits, raising the flue against the wind by one element is
recommended (see fig. 5).
The flue section must be uniform, with smooth walls that do not become more narrow, curves must be
regular and continuous.
It is advisable that the smoke conduct has a solid material and eventual condensation collecting box,
positioned under the smoke conduct intake, so that it is easily accessible and can be inspected from the
airtight door.
NO
SI
Fig.3
YES
Fig.5
SI
NO
YES
Fig.4
m
in
1
,2
m
m in 2 m
m in 3 m
0
,5
m
