Contura C 630, Installation Instruction, Page: 7 / 16

40 mm
40 mm
40 mm
!
55
GB
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. 20 m
3 /h.
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.
Through the external wall
Indirect air supply through the external wall
Through floor and foundation slab
Through floor and wall-and-cavity
foundation
In the back and floor plates there are
knockouts that must be removed to insert
pipes or for air supply if the stove is equipped
with a lower hatch and/or fan (accessory).
Installation variants
Leave a 40 mm gap between the
condensation insulation and the
bottom of the stove.
SUPPLY AIR/ACCESSORY