Flue And Connection To The Same - Chimney - klover DIVA MID Mode D'emploi

Flue and connection to the same - Chimney

The Flue is a fundamental component for correct functioning of the thermo stove. The minimum section of the flue must be that indicated in the thermo stove
technical features (120 mm). Each thermo stove must be equipped with its own flue, without other intakes (boilers, chimneys, stoves etc...). Flue dimensions
are closely related to its height, which must be measured from the thermo stove flue gas outlet to the chimney base. In order to guarantee draught, the
chimney flue outlet surface must be twice as big as the flue section. The combustion products exhaust pipe, generated by the forced draught appliance, must
respond to the following requisites:

Combustion products sealed, waterproof and suitably isolated and insulated in the same way as the conditions of use (cf UNI 9615);

Realised with suitable materials in order to resist to normal mechanical stress, heat, action of the combustion products and in the event of
condensation;

Upward alignment after the vertical tract throughout the remaining pathway with 5% minimum gradient. The sub-horizontal alignment part must not have
a length greater than ¼ of the effective height of the flue or chimney and it must not however be longer than 2,000 mm;

Preferably circular internal section: squared and rectangular sections must have rounded angles with radius larger than 20 mm;

Constant, free and independent internal section;

Rectangular sections with 1:5 maximum ratio between the sides

If the flue is installed externally it is absolutely necessary that it is insulated in order to avoid the flue gas cooling and the formation of condensate;

For the assembly of the flue gas pipes (which go from the appliance to the flue inlet) elements of non-combustible material must be used, which are
suitable for resisting combustion products and their condensation;

It is forbidden to utilise fibre cement pipes to connect the appliances to the flue;

Flue pipes must not pass through places in which the installation of combustion appliances is forbidden;

The assembly of flue pipes must be performed in a way to guarantee the sealing against flue gas for the appliance functioning conditions in low
pressure;

The assembly of horizontal tracts is forbidden;

It is forbidden to use tilted elements;

The flue gas pipe must allow the recovery of soot or be cleanable and must have a constant section;

It is prohibited to make other air intake channels and pipes, for plant engineering, transit inside the flue gas pipes, even if over-dimensioned.
The chimney is a device crowning the flue, used to ease dispersion of combustion products.
It must satisfy the following requisites:

Have a useful outlet section that is not less than the double of that of the flue on which it is inserted;

Be conformed in a way to prevent the penetration of rain and snow into the flue;

Be built in a way that, also in the case of winds from every direction and inclination, to ensure combustion exhaust.
The outlet height (where height means that which corresponds to the top of the flue, independently of any chimneys) must be outside of the so-called reflow
zone in order to prevent the formation of counter-pressures, which prevent free exhaust of the combustion products into the atmosphere.
It is therefore necessary that the minimum heights, indicated in the following figures, are respected:
Dista nce > 5 m
Technical
volume
Fig. A
Dista nce < 5 m
20
Distanc e> 1,85 m
Distanc e< 1,85 m
7
Reflow zone