Flue - Nordica TERMOCAMINO 650 Gebrauchsanweisung

Termocamino 650 – 800
5.

FLUE

Essential prerequisites for correct operation of the appliance:
•
The internal cross-section should preferably be circular.
•
The flue must be thermically insulated and waterproof and made
of materials that are resistant to heat, combustion products, and
any condensates.
•
It must be free of bottlenecks and be vertical with deviations no
greater than 45° .
•
If the flue has already been used, it must be cleaned.
•
Respect the technical data provided in the instruction manual;
If the flue has a square or rectangular section, the internal angles must be
rounded with a radius of no less than 20mm. For the rectangular section,
the maximum ratio between the sides must be 1:5.
A cross-section that is too small will cause a decrease in draught.
We recommend a minimum height of 4 m.
The following materials are prohibited, as they could jeopardise the
correct operation of the appliance: asbestos cement, galvanised steel,
internal surfaces that are rough and/or porous. Picture 7 shows some
examples.
The minimum cross-section must be 4 dm2 (for example: 20 x 20
cm) for appliances with duct diameter less than 200 mm, or 6.25 dm2
(for example: 25 x 25 cm) for appliances with diameter greater than
200 mm.
The draught created by your flue must be sufficient but not excessive.
An overly large cross-section may present a volume too large to heat and
therefore cause problems in the operation of the appliance; to prevent
this, duct the flue for its entire height. A cross-section too small causes a
decrease in draught.
The flue must be adequately distanced from flammable or
combustible materials by means of insulation or an air gap.
It is forbidden to run it inside the piping of air feed systems or channels. It is also prohibited to make moving or fixed
openings on the flue for the connection of other different devices.
(1) Door
for
cleaning
(2) Illustration of a correct flue with sealed door for
collecting and removing solid unburnt materials.
6098000 Rev.12 – EN
YES
Picture 8
(1)
(3)
1) Flue in AISI 316 steel with double
chamber insulated with material
resistant up to 400° C. Efficiency
100% excellent.
2) Flue in refractory material with
double insulated chamber and
external covering in lightened
concrete.
excellent.
3) Traditional flue in clay, square
cross-section,
Efficiency 80% excellent.
4) Avoid using flues with rectangular
section having a ratio different
from that shown in the drawing
(MAX=A+1/2A). Efficiency 40%
mediocre.
(1) Connecting the flue to more than one appliance is
not recommended. Each one should have its own flue.
Picture 9
(2)
A+1/2A
(4)
Max.
A+1/2A
A
Efficiency 100%
with air gaps.
Picture 7
NO
23