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When using the wrong fuel or one which is too damp, due to deposits present in the flue, a flue fire is possible.
4.1.
IN A EMERGENCY
If there is a fire in the flue connection :
a)
Close the loading door and the ash drawer door
b)
Close the comburent air registers
c)
Use carbon dioxide ( CO
d)
Request the immediate intervention of the Fire Brigade
DO NOT PUT OUT THE FIRE WITH WATER.
When the flue stops burning, have it checked by a specialist to identify any cracks or permeable points.
5. DESCRIPTION
The chimney stoves of La Nordica are suitable to heat living spaces for some periods.
As fuel, wood logs are used. The appliance works as an intermittent operating appliance.
The stove is made of sheets in galvanized and painted steel, of cast iron (grate and grate holder of the hearth, exhaust pipe) of stone tiles.
The hearth is totally sheathed with cast-iron single sheets and refractory material (IRONKER). Inside there are a easy extractable thick flat
grate and its holder. The combustion chamber is hermetic welded and is sheathed with a painted steel carter.
The inside smoke plate made of vermiculite, reflects the fire radiation and increases the internal temperature of the combustion chamber.
This process together with the exhaust gases flows, makes optimal the combustion and improves the efficiency.
The hearth is equipped with a panoramic door with ceramic glass (resistant up to 700 °C). This allows a wonderful view on the burning
flames. Furthermore, it is thus avoided the output of sparks and smoke.
Below the hearth door will be found an extractable ash-drawer with a closing door
The heating of the environment is made by irradiation: through the panoramic glass and the external hot surfaces of the stove, the
heat is radiated into the environment.
The stove is equipped with controls of primary and secondary air by which it is adjusted the combustion air.
1A - PRIMARY air register
With the air register located under the door of the hearth (on the left), it is possible to adjust the air flow through the ash drawer and
the grating in direction of the fuel. The primary air is necessary for the combustion process during the ignition. In order to open the
passage of primary air the lever should be completely pulled. The ash drawer has to be emptied regularly, so that ash cannot hinder
the intake of primary air for the combustion. Primary air is also necessary to keep fire live.
During the combustion of wood, the primary air register must be opened only a few, since otherwise the wood burns quickly and the
device can overheat (see chapter NORMAL OPERATION).
2A - SECONDARY air register
Under the door of the hearth (on the right) there is a secondary air register.
This valve must be opened (and therefore completely pushed), in detail, for the combustion of wood, so that unburnt carbon can be
subject to a post-combustion, increasing the yield and assuring the cleaning of the glass (see chapter NORMAL OPERATION).
It is possible to get the air SECONDARY directly from outside through a flexible tube (fireproof NOT furnished
Ref A).
The adjustment of the registers necessary to reach the rated calorific yield is the following one:
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6. FLUE
Essential requirements for correct appliance operation:
• the internal section must preferably be circular;
• the appliance must be thermally insulated and impermeable and built with suitable materials which are resistant to heat, combustion
products and any condensation;
• there must be no narrowing and vertical passages with deviations must not be greater than 45°;
• if already used, it must be clean;
• the technical data from the instruction manual must be respected;
If the flues are of a square or rectangular section, the internal edges must be rounded with a radius of not less than 20 mm.
For the rectangular section, the maximum ratio between the sides must be ≤ 1.5.
A section which is too small causes a reduction in draught. A minimum height of 4 m is advisable.
The following materials are FORBIDDEN and compromise the good operation of the appliance: asbestos cement, galvanised steel, rough
and porous internal surfaces.
The minimum section must be 4 dm
dm
(for example 25x25 cm) for appliances with a diameter of more than 200 mm.
2
The draught created by your flue must be sufficient but not excessive.
A section of the flue which is too large can present a volume which is too large to heat and therefore cause operating difficulties for the
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.
16
powder ) extinguishers to put out the fire
2
(Picture 6 at page
41)
(Picture 6 at page
41)
Fuel
PRIMARY air
Wood
OPEN
Picture 1 at page 38
shows some example solutions.
(for example 20x20 cm) for appliances whose pipe dimensions are less than 200 mm, or 6.25
2
(Picture 8 at page
SECONDARY air
OPEN
41).
Picture 7 at page 41
TERTIARY AIR
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7196011 - IT - EN - DE - FR
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