In A Emergency; Description; Flue - LA NORDICA TEA Instructions Pour L'installation, L'utilisation Et L'entretien

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). The hearth is
totally sheathed with cast-iron single sheets and refractory material. 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 (Picture 8 at page
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 primary air control (movable valve), which is found below the hearth door it is adjusted the passage of air through the ash
drawer and the grate in the fuel direction. The primary air is necessary for the combustion process. The ash drawer must be regularly
emptied, so that the ash does not obstruct the primary air entry. Through the primary air the fire is also kept alive. 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
On the over part of the door there is the secondary air control. Also this register must be opened (then moved to the right), especially
for wood combustion.
The adjustment of the registers necessary to reach the rated calorific yield is the following one:
TEA

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. Picture 1 at page
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.
The flue must be at a suitably distance from flammable or combustible material using suitable insulation or an air space.
It is FORBIDDEN to pass system piping or air ducts inside the flue. It is also forbidden to create moveable or fixed openings on the flue
itself, for the connection of further different appliances (See chapter CONNECTING A FIREPLACE OR OPEN HEARTH TO THE FLUE).
16
powder ) extinguishers to put out the fire
2
(Picture 6 at page 41)
(Picture 6 at page 41)
Fuel PRIMARY air
5 mm OPEN
Wood
Picture 6 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
SECONDARY air
OPEN
41 - B
41).
TERTIARY AIR
Pre-adjusted
7191800 - IT - EN - DE - FR
TEA