15
3.0 Installation
3.1 Floor
Foundation
You need to make sure the foundation is suitable for a fireplace.
See “2.0 Technical Data” for specified weight.
Requirements for protection of wooden
flooring beneath the fireplace
The Jøtul I
500
Series has a heat shield underneath to protect the
floor from radiated heat. The product can therefore be positioned
directly on a wooden floor that is covered by a sheet of metal or
other non-inflammable material. The recommended minimum
thickness is
0.9 mm
. The plate must cover the entire floor surface
within the surround.
We recommend the removal of any flooring that is not attached
to the foundation (“floating floors”) beneath the installation.
Any floor covering of inflammable material, such as linoleum,
carpets, etc. must be removed from under the floor plate.
Requirements for protection of inflammable
floors in front of the fireplace
The floor in front of the fireplace must be protected by a sheet
of metal or other non-inflammable material. The recommended
minimum thickness is 0.9 mm. The floor plate must comply with
national laws and regulations.
Contact your local building authorities regarding restrictions and
installation requirements.
3.2 Wall
Distance to inflammable wall protected by
insulation (Fig. 1)
Insulation requirements
50 mm
rock wool 120 kg/m
3
with aluminium foil on one side.
Distance to inflammable wall protected by
firewall (Fig. 1)
Requirements for regulation firewalls
The firewall must be at least 100 mm thick and made of brick,
concrete or lightweight concrete. Other materials and structures
with satisfactory documentation may also be used.
Contact your local building authorities regarding restrictions and
installation requirements.
Distance to non-inflammable wall (Fig. 1)
“Non-inflammable wall” here means a non-bearing wall of
continuous brickwork/concrete.
Requirements for fireplace surround
Fireplace surrounds must be made of a non-inflammable
material
Note that the entire back wall and, if any, side walls within the
surround must be covered with insulation/firewalls.
If the cowl is built up to the ceiling and the ceiling is of
inflammable material, extra panelling must be installed above
the top of the heating chamber and above the cowl’s vents in
order to prevent the ceiling becoming hot. Use for example: Rock
wool,
100 mm
thick, on a steel plate
(min. 0.9 mm)
. See
Fig. 2A
.
Ensure there is adequate ventilation in the top of the cowl – e.g.
a gap under the ceiling.
NB: Remember that it must be possible to sweep and inspect
the installation.
3.3 Air supply (Fig. 2)
Air must flow between the insert and the brickwork, and it is
extremely important that there is an unimpeded air supply to
the air inlets.
The air inlet dimensions specified in the text are minimum
requirements.
Required air vent sizes (for air circulation):
Base: Minimum of 500 cm
2
free opening.
Top: Minimum of 750 cm
2
free opening.
This is a safety measure to ensure that the build-up of heat inside
the surround does not become too great and that the output of
heat to the room is adequate.
If the house is poorly ventilated, the room must be fitted with
an additional supply of outside air, e.g. by means of a separate
duct under the fireplace,
Fig. 2 C
. The outside air duct should be
as straight as possible and must be made of a non-inflammable
material. It must be possible to close the ducts with a damper in
order to keep out cold air when the stove is not being used. We
recommend Jøtul’s outside air damper, catalogue no. 340654.
3.4 Ceiling
The fireplace can be fitted with the top edge of the hot air opening
of the surround
at least 400 mm
below a ceiling of inflammable
material. See
Fig. 2
. Ensure there is adequate ventilation in the
top of the cowl – e.g. a gap under the ceiling.
3.5 Chimney and flue pipe
• The fireplace can be connected to a chimney and flue pipe
approved for solid fuel fireplaces with flue gas temperatures
as specified in
“2.0 Technical Data”
.
• The cross-section of the chimney must be at least that of the
flue pipe. Use
“2.0 Technical Data”
to calculate the correct
chimney cross-section.
• Several solid fuel stoves can be connected to the same chimney
system if the chimney cross section is adequate.
• Before a hole is made in the chimney, the fireplace should be
test-mounted in order to correctly mark the position of the
fireplace and the hole in the chimney. See Fig. 1 for minimum
dimensions.
• Make sure that the flue pipe rises all the way up to the
chimney.
• Use a flue pipe bend with a sweep hatch to allow sweeping.
Please note
that it is extremely important for connections to
have a degree of flexibility. This is to prevent any movement in
the installation leading to the formation of cracks.
NB:
A correct and airtight connection is extremely important for
the function of the product.
ENGLISH
