ULTD_WHE_2S3S_01
12
7
Combustion air supply
The combustion process requires air supply. This supply can be achieved as follows.
7.1
Standard connection underneath/rear. Connection diameter 2x 150 mm.
7.2
Connection requiring air from the room (combustion air from outside):
When the door is closed, the fireplace is sealed off from the inside area and must therefore be
connected to the outdoor air so that the combustion process can take place. This can be done via an
outside wall, ventilated cellar or via a ventilation shaft. The direct air supply can be connected to the
fireplace via the bottom or the rear of the fireplace.
The connection diameter is 2x 150 mm. The net cross-sectional area for the air supply must therefore
be at least 360 cm².
This air connection principle ensures that air from the room is not used for combustion. If the
connection is made via the bottom of the fireplace, then the rear connection must be sealed. If it is
made via the rear, then the bottom connection must be sealed. To this end, 2 caps and 2 connector
flanges are supplied with the appliance.
7.3
Connection requiring air from the room (combustion air supply from outside):
If the combustion air cannot be connected directly to the fireplace, the installer must ensure that
there is an alternative air supply in the room where the fireplace is located. The air supply opening
must be at least 360 cm². This air supply should preferably flow into the bottom of the fireplace
surround. Make sure that the air supply can be closed off when the fireplace is not in use.
