System Requirements; External Combustion Air Supply; Connecting To The Chimney - Austroflamm Clou Pellet Benutzerhandbuch

2 System requirements

External combustion air supply

Every combustion process requires oxygen. This is extracted from the ambient air.
In modern buildings, the outer shell (windows and doors) is very tight. This means that insufficient com-
bustion air flows in. In such cases, the firebox must be supplied with combustion air from outside. For this
purpose, your stove is equipped with a connection for external combustion air. If a house is equipped with
ventilation systems, an external air connection is also necessary.
!
NOTE: The combustion air connection is marked on the rear of the appli-
ance with this supply air symbol.
Your pellet stove is prepared for this (see the Technical data in this manual). To connect the external
combustion air supply, use a pipe or hose with a minimum diameter of 80 mm. If the pipe exceeds 2 m in
length, the diameter should be at least 100 mm. The maximum length of the duct should not be more than
3 m and have a maximum of three elbows.
When connecting directly to the outside wall, it is
important to ensure that condensation does not
form in the process. Austroflamm offers appropri-
ate components for this purpose. Furthermore, the
supply air spigot on the air inlet on the outside wall
of the building must be protected against the wind.
NOTE: A lack of combustion air is evidenced by
poor combustion, increased soot formation, black-
ened glass of the firebox door and increased ash
accumulation.

Connecting to the chimney

When connecting to the chimney, local and build-
ing regulations along with fire regulations must be
observed in addition to national and European
standards.
The stove may only be connected to a chimney
approved by the chimney sweep. Condensation must be prevented from entering the stove.
See sections 10 and 11 Technical Data.
!
NOTE: The flue pipe connection is marked on the back of
the appliance with this flue gas symbol.
The flue pipe must be connected to the rear of the stove.
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