Installation premises
For proper operation of a gas appliance, the air necessary for the
combustion of the gas must be able to flow into the room
naturally. The air must flow into the room directly through
openings in the outside walls. These openings must have an
unobstructed cross-section not less than 2m
3
/h
for each kw of
power (see total power in kw on the appliance nameplate).
This opening must be constructed so that it will not be
obstructed from inside or outside, or
constructed close to the floor. The opening is
recommended to be on the side opposite to
that on which the flue gases are discharged. If
it is not feasible to provide these openings in
the room where the appliance is installed,
the necessary air may be taken from an
adjacent room, provided that:
·
this room is not a bedroom or a hazardous
environment;
·
this room has ventilation;
·
the ventilation between the room where the
appliance is installed and the adjacent room
has openings.
Discharge of flue gases
Gas cooking appliances must discharge
their flue gases through hoods connected
directly to flues or the outdoors. If it is not
possible to install the hood (fig. B) an electric
fan must be installed on the outside wall or
the window of the room, provided it is
possible for the ventilation opening to be
increased in proportion to the delivery rate of
the fan (fig. C).
For a kitchen, the delivery rate of this electric fan must guarantee
an hourly air exchange of 3-5 times its volume. In both instances,
the use of flues already used by other appliances to discharge the
flue gases is forbidden.
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