Plamen Alberto Directives Techniques page 22

In order for the stove to operate efficiently, it is necessary to supply the position in which the
stove is placed with enough airflow required for combustion. The furnace has the ability to supply
the air from the outside through the air intake. If this option is not used, the furnace will use the air
from the room where it is installed, and it is extremely important that there is sufficient air supply in
such a room.
In cases of sealed windows and doors (as in houses designed for saving energy) there could
be a lack of fresh airflow, which can have a negative effect on your comfort, as well as safety.
Therefore it is necessary to provide an additional air supply via an outside air suction device and
place it near the stove. Kitchen hoods with air extraction (suction) installed in the same or adjacent
room to the some causes a drop in pressure, causing the combustion gases to flow out (thick
smoke, smell). Therefore it is necessary to secure a larger fresh airflow.
3 CHIMNEY
The basic requirements for its proper functioning are:
a) circular-shaped inner cross section is recommended,
b) thermal isolation and impermeability are required so the materials used are to be
temperature resistant,
c) there are not to be any narrowing's, it has to be laid vertically,
d) if previously used, it has to be cleaned,
e) it has to meet all the technical requirements brought in the Instructions for Installation.
If the chimney is square or rectangle-shaped, its inner edges are to be curved. Too small an
inner cross section diminishes the smoke suction capacity. Minimal height of 4m is recommended.
Use of asbestos-cement, galvanized steel, rough or porous inner surfaces are not allowed since
they reduce its normal operation.
Image 5
1 Poorly designed chimney cap
2 An object in the chimney
3 Soot deposits
4 Flue pipe placed in too deep
5 Damage
6 Poor sealing on the door for cleaning
7 Opened opening in the chimney
8 Poor sealing of the flue pipe and the
chimney
The chimney top is to be placed above
the house roof or at least 10° from the
top as shown in the illustration.
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