4.
4.
FIREBOX INST
FIREBOX INST
ALLA
ALLA
TION
TION
Dismantle the screws fixing the firebox on the pallet.
4.1. BEFORE INSTALLING THE APPLIANCE
All combustible materials or materials liable to be affected by the temper-
ature must be removed from the surface, or interior of the floors, walls, and
ceilings where the fireplace is to be located (Z1, Z2, Z3, Z4, Z5) taking into
account the position of the fireplace in the room (figs. 3.1, 3.2, 3.3).
4.1.1. Floor
Ensure that the existing floor (Z3) is capable of bearing the total load consti-
tuted by the firebox, the fireplace and the hood. If this is not the case, it
must be reinforced. In the loading zone (Z5), we recommend that an easy-
to-clean, non-combustible floor covering be laid (tiling for example) (tab.
4.1).
4.1.2. Walls
Remove coverings (wallpaper, panelling or other wall coverings) from the
area around the future chimney. Depending on the wall material, apply the
solutions recommended in table 3.1.
Surrounding walls
For all the walls within the distances given (Z1 and Z2), take the precau-
tions detailed tab. 4.1.
4.1.3. Ceiling
In the area covered by the hood (Z4), insulate using stiff rock wool, after
removing all non-M0 materials (incombustible).
4.1.4. Evacuation of the combustion products
Pay extreme care when checking or constructing the smoke evacuation
system (cf. French regulations DTU 24.1 and DTU 24.2 standards).
If the smoke flue already exists; it is essential to:
- have it swept by mechanical means (flue brush),
- have the physical state of the chimney checked by a qualified profes-
sional: stability, air tightness, compatibility of the materials, cross section.
If the chimney is not compatible (too old, cracked), it is necessary to:
- either fit tubing using a product officially approved as suitable for this
purpose,
- or reline the chimney,
- or a suitable new flue, constructed by a company with the required quali-
fications.
4.1.5. Going through ceiling and floors
The smoke flues must be installed with a minimum gap according to
national requirements between the interior wall of the flue and the
nearest combustible element (in France; NF-DTU 24.2, (or 16 cm)).
4.1.6. Combustion air
The fresh air is essential to a good combustion. The functioning is optimal
with an approximately 40 m
3
/ hour of fresh air consumption.
A system of ventilation (french VMC), a centralized ventilation system, a n
extractor hood can perturb the functioning of the firebox. Use a direct
combustion air supply connected outside. A direct supply of air combustion
in the room is possible; respect the following recommendations:
4.1.6.1 Combustion air not connected
If no outside nozzle connection is possible, an additional outside air intake
facing the prevailing winds is required if combustion is to function correctly,
especially in a house higly insulated and/or fitted with a mechanical venti-
lation system (french VMC). This air intake, which can be blocked if the
combustion chamber does not work, must not come out inside the cladding.
It must have a minimal free cross section of 1.2 dm².
Do not use the fire if an extractor-type kitchen hood is in use.
The cross section (cm²) of the air intake of the ventilated underfloor space
must be at least equal to 5 times the surface (m²) of the underfloor space.
The inlet of fresh outside air is not required if the house is equipped with a
ventilation system taking into account the additional air flow consumed by
the functioning fire (in France 24 mars 1982 rules - § 8 and § 11).
4.1.6.2 Combustion air connected fix the nozzle (fig 2.2)
If the combustion air must be connected, prepare the air inlet duct to the
fireplace. 2 m maximum length duct, using the shortest way (otherwise the
air inlet could be insufficient), resulting in front of prevailing wind or in a
technical space. If a grate is used, maintain a 1,2 dm
2
minimal free section.
Fix the air nozzle on the firebox (specific installation manual).
Warning: do not place any combustible objects within 2 m in front
of glazed fire front !
GB 7/12
39417-05-16
Z1
Z2
Z3
Z4
Z5
Z2
489
Z1
Z1
50 cm minimum
25 cm minimum
Z1
50 cm min.
Dans le cas d’un appareil à vision
latérale, la distance de 50 cm doit
être portée à1 m.
Installation in a corner
Front-facing installation
4.1
4.2
4.3
Firebox
Table 4.1
ZONE 1
ZONE 2
EXISTING MATERIALS
SOLUTION RECOMMENDED
MATERIALS RECOMMENDED
FINISHING MATERIALS
Exterior wall with inflammable
insulation incorporated.
Cut out the existing insulation
- Replace with an M0 reinforcement wall
- Insulate with special insulating material
- Brick, foam concrete
- Rock wool + aluminium film
Class M0 or M1
Exterior wall without insulation
or non-inflammable cross wall
(approx. 15 cm).
- Insulate with special insulating material
- Rock wool + aluminium film
Class M0 or M1
Light partition made of plaster, wood,
plasterboard, polystyrene,
polyurethane, alveolar partitions.
- Remove and build a wall 10 cm thick,
- or do not remove and build a wall 10 cm
thick in front of a 2 cm cavity,
- or remove and build a new solid
supporting wall + insulation.
- Brick, foam co
stiff rock wool.
Class M0 or M1
