Ventilation Requirements - BORETTI CFBG902AN3 Instruction On Mounting And Use Manual

Ventilation requirements

The appliance must be installed in compliance with applicable local regulations
concerning ventilation and the evacuation of exhaust gases. Intensive and
prolonged use may require extra ventilation, e.g. opening a window, or more
efficient ventilation increasing the mechanical suction power if this is fitted.
Choosing suitable surroundings
The room where the gas appliance is to be installed must have a natural
flow of air so that the gas can burn (in compliance with applicable local
regulations). The flow of air must come directly from one or more openings
made in the outside walls with a free area of at least 100 cm
applicable local regulations). The openings should be near the floor and
preferably on the side opposite the exhaust for combustion products and
must be made so that they cannot be blocked from either the inside or the
outside. When these openings cannot be made, the necessary air can come
from an adjacent room which is ventilated as required, as long as it is not a
bed room or a danger area (in compliance with applicable local regulations).
In this case, the kitchen door must allow the passage of the air.
Discharging products of combustion
Extractor hoods connected directly to the outside must be provided, to allow
the products of combustion of the gas appliance to be discharged (fig. 8.9).
If this is not possible, an electric fan may be used, attached to the external
wall or the window; the fan should have a capacity to circulate air at an hourly
rate of 3-5 times the total volume of the kitchen (fig. 8.10). The fan can only be
installed if the room has suitable vents to allow air to enter, as described under
the heading "Choosing suitable surroundings".
Extractor hood
for products of
combustion
Air vent
Electric fan to
extract products
of combustion
Fig. 8.9
52
(or refer to
2
Air vent
Fig. 8.10