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COMBUSTION AIR
Each combustion procedure requires oxygen or air. As a rule, this combustion air is removed
from the living area for individual stoves The air taken from the living area must be
reintroduced. In modern houses, very tight-fitting windows and doors mean that too little air
flows back. This situation becomes problematic due to additional ventilation in the house
(e.g., in the kitchen or WC).
The suctioning in of combustion air is performed via the flue gas blower. The resulting
combustion air and suctioning noises are normal operational noises that may occur at
varying volumes depending on the chimney draught, output level or a dirty combustion
trough – NOT A CAUSE FOR COMPLAINT!
Feed of external combustion air
● Steel, HT or flexible aluminum pipes must be used.
● Minimum diameter 41 mm /2 inches.
● For longer connection runs the diameter must be increased to approx. 10 cm after approx.
1 m.
● The pipe should not be longer than approx. 2m in total to guarantee adequate air feed and
not have too many bends.
● Should the line lead into the open air, it must end with a vertical 90° downward elbow or
with a wind guard.
Should one or more of these conditions NOT be applicable then usually poor combustion will
occur in the stove, as well as air under pressure in the apartment.
We recommend that a ventilating grille be fitted in a window near the stove for permanent
ventilation. Further it is possible to extract the combustion air directly from outside or from
another room that is well ventilated (e.g., the cellar).
Please observe:
Your pellet stove works independent of the room air. Negative pressures in the set-up room
are not permissible. Therefore, the use of a safety device (e.g., differential pressure
controller) in combination with room air facilities (e.g., ventilation system, exhaust
extraction etc.) is stipulated.
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