It must present an outlet section not inferior to a double of the chimney section and it must be shaped
to assure the outlet of fumes in case of wind coming from all directions and inclinations. It must stop
rain, snow and animals from going inside. The height of the fumes outlet in the atmosphere must be far
away from the reflux area caused by the roof shape or by the presence of nearby obstacles (see picture
4).
Maintenance
The chimney flue must be kept always clean: deposits of soot or incombustible oils reduce its section
in size obstructing its draught, compromising the good functioning of the stove and if the residuals are
big they can catch fire. The chimney flue and pot must be cleaned and checked by an expert at least
once a year. Safety can be compromised by the non-cleaning.
Pic. 4
External air intake
We recommend to set an air intake from the outside to have a healthy inner environment. The air flow
between the outside and the room can be vented directly from a duct on the external wall of the room
(best solution, see picture 5-A) or indirectly from adjacent rooms (see picture 5-B) as long as these
rooms are not bedrooms, garages, store rooms, rooms that present the risk of fire or with an opposite
draft due to a suction system without air intake.
The air intake duct must have an inner cross section of at least 20 cm
2
but this parameter must be
increased if there is an electric ventilation system to air the room (ex. Kitchen hood) (see picture 7). The
air intake duct must be located near the floor and safe from any accidental obstruction.
