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CHIMNEY PIPE
Flue draught depends on the suitability of the chimney pot.
It is therefore essential that the outlet cross-section is more than twice the internal cross-section of
the flue (Fig. 2). As it must always extend above the ridge of the roof, the chimney cowl must
ensure that the chimney is evacuated even in windy conditions (Figure 3).
The chimney cowl must meet the following requirements:
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Have an internal cross-section equivalent to that of the chimney.
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The useful outlet cross-section must be twice the internal cross-section of the flue.
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Be built in such a way as to prevent rain, snow or any foreign object from entering the flue.
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Be easy to inspect, for all maintenance and cleaning operations.
CHIMNEY CONNECTION
For safety reasons, products with automatic door closing (type 1) must be operated with the oven
door closed (except during fuel loading or ash removal).
Products with non-automatic door closing (type 2) must be connected to their own flue. Operation
with the doors open is only permitted under supervision.
The flue connection pipe must be as short as possible, straight, horizontal, positioned slightly uphill
and watertight. The
The connection must be made using stable, sturdy pipes that comply with all the standards and
regulations in force and those required by law and must be hermetically sealed to the flue pipe.
The internal diameter of the connecting pipe must correspond to the external diameter of the
appliance flue (DIN 1298).
ATTENTION: with regard to the construction of the flue connection and flammable materials,
please follow the requirements provided. The flue pipe must be correctly spaced from any
flammable material or combustible by means of suitable insulation or an air cavity. Minimum
safety distance 25 cm.
The chimney pressure (TIRAGE) must be at least 12 Pa Pascal (= 1.2 mm water column). The
measurement must always be taken when the appliance is hot (rated heat output). When the
pressure exceeds 17 Pascal, it must be reduced by installing an additional draught regulator (false
air damper) on the exhaust or in the chimney, in accordance with the regulations in force.
For the appliance to work properly, it is essential that a sufficient quantity of combustion air
is introduced into the installation area (see paragraph VENTILATION AND AERATION OF
INSTALLATION AREAS).
VENTILATION AND AIRING OF INSTALLATION PREMISES
As the products draw their combustion air from the place of installation, it is MANDATORY that a
sufficient quantity of air is introduced into the place itself. If the windows and doors are airtight (e.g.
built according to energy-saving criteria), it is possible that fresh air intake is no longer guaranteed,
thus endangering the appliance's draught as well as your health and safety.
It is MANDATORY to have a sufficient quantity of air for combustion and reoxygenation of the
room to ensure that the appliance operates correctly. There must therefore be air vents that let in
air from outside the building and allow combustion air to circulate even when the doors and
windows are closed.
Air inlets must meet the following requirements:
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They must be protected by grilles, wire mesh, etc., but without reducing the net cross-
section.
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They must be designed in such a way as to allow maintenance operations to be carried
out.
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Positioned so that they cannot be obstructed.
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Any extractor hoods in the room where the appliance is installed must not be operated at
the same time, as this could cause smoke to enter the room, even with the firebox door
closed.
The flow of clean, uncontaminated air can also be obtained from a room adjacent to the installation
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