Manuale Uniflam Idro rev. 00
9
2.2 Heating system
CHIMNEY
The proper installation of the fume exhaustion ensures a proper operation of our heating
generators.
In normal use the chimney has to ensure then right depression (Draft) sufficient combustion
air and flue gas exhaust (Smoke), this it is essential for a successful functioning of the stove.
Following are suggestions we would like to give out of our checks and theoretical calculations:
Respect the right balance between cross-sectional and vertical tubes, in all cases it is not
recommended to use chimneys with a height of less than 3 meters or more than 10 meters.
It is recommended to consult for the installation of the fireplace the regulations regarding the
size of the flue (UNI 9615, UNI 7129 and subsequent updates).
WARNING: We do not recommend the use of rectangular sections with ratio is bigger than 1.5.
Install the pipe to seal the combustion products.
The proper isolation and insulation of the flue (by using steel wool or ceramic fiber to ensure
high-temperature gas), especially in the outer segment exposed to the weather to avoid the
risk of condensation.
WARNING: The formation of condensation water inside the chimney can cause the absorption
of ashes and the formation of deposits that can cause problems to the product (f.es. too much
smoke).
Have constant section throughout its vertical development free from obstacles and
bottlenecks. All angles have to be bigger than 45 ° to the vertical.
The construction of the chimney in stainless steel or aluminium, round and with a smooth
inner surface.
WARNING: You may use our product in smoke systems with divided stoves only if this is in
accordance with statutory regulations and laws at local, national and European level
(Ministerial decree of 12.01.1975, UNI 7129).
