15
Room Volume (m
3
)
5
6 to 10
6 to 11
11 or more
Air Vent Required (cm
2
)
100
50
No permanent vent required if a door opens to the outside
None required
Ventilation
All rooms require a window or equivalent (e.g. a door) which can be
opened. Some rooms require a permanent vent in addition to a win-
dow (see below).
This unit must not be used in a room which is less than 5m
3
. The fol-
lowing table details the requirements based on the kitchen volume
(L x W x H) in m
3
.
The above requirements also allow use of a gas oven and grill but if
there are any other fuel burning appliances in the same room, consult
the relevant British Standard (BS5440) or GAS SAFE document.
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