barbas UNILUX-3300, Installation Instructions Manual

Page: 15 / 52

15
UNILUX-3 200 L / 200 R / 300
3.3.1. Aeration / ventilation
A fi replace insert generates : - heating air
- combustion air
Heating air (convection air) is devoted to the convection of heat from the
appliance to the room. No other provisions are necessary. The source of heat is
in the room and stays there.
Combustion air is needed to keep the combustion going by drawing in air from
the room due to the natural draught of the chimney.
The intake opening for the air is under the door. When using the appliance,
please ensure there is a suffi cient supply of fresh air: minimum 50 cm
2
(Ø80 mm)
opening in the room where the fi re is placed.
Make sure that the ventilation supply is open; this is particularly important with
today’s airtight dwellings.
If the dwelling has mechanical ventilation that creates under pressure in the
room where the appliance is located, it is necessary to fi t a fl ue gas fan. The
type of fl ue gas fan is dependent on the capacity of the mechanical ventilation
system. Always consult your fi tter about this.
In dwellings with an operating extractor hood, this should be turned to the lowest
setting or turned off altogether. If the extractor hood remains in use, additional
ventilation must be provided in compensation. This will not only avoid poor
combustion, but will also prevent fl ue gases being sucked from the appliance
into the room.
Should creating an extra ventilation opening prove insuffi cient, it is then neces-
sary to fi t a fl ue gas fan.