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5.5.1 FLUE GAS CHANNEL
The flue gas channel consists of the various components that con-
nect the appliance to the flue, and allows for adequately dispersing
the combustion by-products into the atmosphere.
l
The flue gas channel must be made by qualified per-
sonnel in accordance with the regulations in force;
in particular, it must guarantee the minimum draught
specified by the appliance's manufacturer and be
suitably sealed.
The components making up the flue gas channel
■
must be declared suitable for the specific operating
conditions of the appliance to be installed and must
be suitably sized in relation to it.
a
Refer to the manufacturer's indications and designa-
tion with regard to: the safety clearances, installation
procedure, maintenance, safety and insulation of the
elements used to make the flue gas channel.
Be careful that the flue gas channel does not come
■
into contact with heat-sensitive or combustible
materials (for example fabrics, clothing, claddings,
walls, wooden beams or ceilings, etc.).
If wooden roofs or walls must be crossed, we rec-
■
ommend using appropriate certified kits, available in
retail stores.
If there is a risk of accidental contact with the flue
■
gas channel, adequately protect the external sur-
face as indicated by the manufacturer of the flue gas
channel elements and according to the regulations
in force.
l
For detailed information on the position of your ap-
pliance's fume exhaust, consult the chapters
nical
Specifications" and
exhaust".
d
The flue gas channel must not cross rooms where
it is forbidden to install combustion appliances, nor
other rooms with a risk of fire or that cannot be in-
spected.
On products with forced fume ventilation (for exam-
■
ple pellet-burning appliances), it is strictly forbidden
to install shutters or draught adjustment valves (e.g.
butterfly valves) that can obstruct the flow of ex-
haust fumes.
It is forbidden to install flexible pipes made of metal,
■
fibre cement, aluminium or pipes without CE approv-
al, and to use of counter-sloping elements.
d
The appliance must be connected to its own non-
shared fume exhaust duct, therefore the flue gas
channel MUST NOT be connected:
to a flue used by other appliances such as boilers,
■
stoves, fireplaces, etc.
to air extraction systems, such as hoods or purge
■
devices.
12
"Tech-
"Connection to the fume
5.5.2 FLUE
Each product must be connected at a flue for discharging combustion
by-products to the outside, via natural draught.
l
The flue must be made by qualified personnel and
in accordance with the regulations in force, with re-
gard to both its dimensions and the materials used
to build it.
The flue must be suited to the specific operating
■
conditions of the appliance to be installed and must
be suitably sized in relation to it; in particular, it must
guarantee the minimum draught specified by the
appliance manufacturer and must be appropriately
sealed.
d
It is forbidden to make other flue gas or air extraction
channels, or pipes connected to plants, pass inside
the flue, unless otherwise specified by the manufac-
turer and allowed by the national standards and local
regulations.
It is important to bear in mind that:
- the flue must be equipped with a chamber for collecting solid ma-
terial and condensate; it must be situated under the fitting inlet, so
that it can be easily opened and inspected through an airtight door
(inspection for soot collection)
- if wooden roofs or walls must be crossed by piping, we recommend
using appropriate certified kits, available in retail stores
- the flue must have a maximum operating temperature and soot fire
resistance class corresponding to the type of fuel used and as indi-
cated in the table.
Maximum operating
Fuel
temperature in °C
Pellets
200°C (T200)
Wood
400°C (T400)
a
Fumes can be discharged through the existing flue,
after verifying that the flue has undergone proper
maintenance.
If the flue does not conform to the requirements, ei-
■
ther because it is too old or too large, assess with
qualified personnel whether to adapt it to the regula-
tions, for example by burying the flue in a stainless
steel pipe suitably insulated and sized according to
the path. Moreover, the connection to the flue must
be sealed.
a
The combustion by-products must be discharged
through the roof.
For clarifications regarding any restrictions and spe-
■
cial requirements in your area, refer to the local reg-
ulations.
INSTALLATION
Soot fire resistance
Yes (G)
Yes (G)
CS.SB80.IST_EN_Rev. 2.0_09-23
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