壹NSTALLATION ROOM
The room where the gas appliance is to be installer must have a
natural flow of air so that the gas can burn.
The flow of air must come directly from one or more openings
made in the out-side walls with a free area of at least 100c㎡.
If the appliance does not have a no-flame safety device this
opening must have an area
of at least 200c㎡.
The openings should be near the floor and preferably on the side
opposite the exhaust for combustion products and must be so
made that they cannot be blocked from either the outside 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 bedroom or a dangerous area.
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.16).
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
kichen (fig.17).
The fan can only be installed if the room has suitable vents to
allow air to enter,as described under the hesding “Installation
room”
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