4
PROVISION FOR VENTILATION
The room containing the cooker should
have an air supply in accordance with
BS.5540: Part 2: 1989.
All rooms require an openable window
or equivalent while some rooms require
a permanent vent in addition to the
openable window.
The cooker should not be installed in a
bed-sitting room, of volume less than
21 m
3
.
Where a DOMESTIC COOKER is
installed in a room or internal space,
that room or internal space shall be
MINIMUM PERMANENT OPENING FREE AREA FOR FLUELESS APPLIANCE
5 m
3
to
10 m
3
Openable
window or
equivalent also
required
Maximum
appliance
rated input
limit
Room volume
11 m
3
to
20 m
3
> 20 m
3
< 5 m
3
Type of appliance
Domestic oven, hot-
plate, grill or any
combination thereof.
None
50 (
❊
)
cm
2
Nil
cm
2
Nil
cm
2
100
cm
2
Yes
(
❊
) If the room or internal space containing these appliances has a door which opens
directly to outside, no permanent opening is required.
Installation
provided with a permanent opening
which communicates directly with
outside air and is sized in accordance
with table below. In domestic premises
the permanent opening shall be an air
vent.
If there are other fuel burning
appliances in the same room, BS.5540:
Part 2: 1989 should be consulted to
determine the requisite air vent
requirements.
If the cooker is installed in a cellar or
basement, it is advisable to provide an
air vent of effective area 100 cm
2
,
irrespective of the room volume.