18
Ventilation requirements
o The room containing the hob should have an air supply in
accordance with the current edition of BS 5440: Part 2:
o The room must have opening windows or equivalent; some
rooms may also require a permanent vent.
o If the room has a volume between 5 and 10m³, it will require an
air vent of 50cm² (effective area). Unless it has a door which
opens directly to the outside.
o If the room has a volume of less than 5m³, it will require an air
vent of 100cm² (effective area).
o If it is installed in a room with a volume that exceeds 11m³, then
no air vent is required.
o If there are any other fuel burning appliances in the same room
the current edition of BS 5440: Part 2: should be consulted to
determine air vent requirements.
o Ensure that the room containing the hob is well ventilated, keep
natural ventilation holes or install a mechanical ventilation device
(mechanical cooker hood).
o Prolonged intensive use of the appliance may call for additional
ventilation, either by the opening of a window, or by increasing
the level of the mechanical ventilation device (where present).
o This hob is not fitted with a device for discharging the products
of combustion. Ensure that the ventilation rules and regulations
are followed.
o The walls behind and near the hob should be resistant to heat,
steam and condensation.
o Remember that the quantity of air necessary for combustion
must never be less than 2m³/h for each kW of power (see total
power in kW on the appliance rating plate).
