Belling Db4 90dft Prof Manual page 31

The information below is crucial to installing this appliance
correctly and safely.
Ventilation Requirements
The room containing the appliance should have an air
supply in accordance with BS 5440:Part 2.
All rooms require an openable window, or equivalent,
●
and some will require a permanent vent as well.
For room volumes up to 5m 3 an air vent of 100cm 3 is
●
required.
If the room has a door which opens directly to the
●
outside, or exceeds 10m 3 - no air vent is required.
For room volumes between 5m 3 and 10m 3 and air vent
●
of 50cm 2 is required.
If there are other fuel burning appliances in the same
●
room, BS 5440:Part 2 should be consulted to determine
the air vent requirements.
This appliance must not be fitted into a bed sitting room
●
of less than 20m 3 or into a bath or shower room.
Windows and vents should not be blocked or removed
without first consulting a competent engineer.
LPG only - do not install this appliance below ground
level. This does not preclude installation into rooms which
are basements with respect to one side of the building, but
open to ground level on the opposite side
Where standards have been revised - always use the most
recent edition.
Failure to install appliances correctly is dangerous
and could lead to prosecution.
Installing Your Cooker
.