Supply Of Combustion Air - Contura C 685 Installation Instruction

Supply of combustion air

When a stove is installed in a room, the demand for air supply to
the room increases. Air can be provided indirectly via a vent in
the outer wall or via a duct from the outside that is connected to
the connector on the underneath of the stove. The amount of air
needed for combustion is approx. 25m
The connector has an external diameter of 67 mm. When duct
routing further than 1 m the pipe diameter must be increased to
100 mm and a correspondingly larger wall vent must be selected.
In hot areas the duct should be insulated with 30 mm mineral wool
covered with a moisture inhibitor (plastic). It is important that the
lead-in between the pipe and the wall (or floor) is sealed using
jointing compound.
A 1 m length of condensation-insulated ducting for combustion air
is available as an accessory.
Installation variants
Indirect air supply through the external wall.
Through floor and wall-and-cavity foundation.
3 /h.
LEK
There is a detachable cover on the reverse of
the pillar foot which is removed when installing
combustion air connection.
!
Leave a 40 mm gap between
the condensation insulation
and the bottom of the stove.
Through floor and foundation slab.
GB
SUPPLY AIR/ACCESSORY
LEK
71