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6.7
SYSTEM FOR EVACUATION OF THE FUMES
ECOMONOBLOCCO WT 78 must be connected to a system for flue gas evacuation suitable to ensure an adequate
dispersion into the atmosphere of the combustion products, in compliance with standards EN 1856-1-2 EN 1857, EN
1443, EN 13384-1-3, EN 12391-1, UNI 10683 both for size and materials used in its construction.
• The size of the CHIMNEY should be in accordance with what reported in the Technical Sheet (average draft 12 Pa
with door closed).
The components of the systems for the evacuation of combustion products must be declared suitable for
the specific operating conditions and provided with marking
(through the declaration or the certificate of
conformity or the European Technical Approval of the product).
• The section of the flue will remain constant for the whole of its height.
• A minimum height of 3,5÷4 m is recommended (Fig. 6.4).
• It is appropriate to provide a collection chamber with inspection for solid materials and any condensation under the
smoke inlet channel. (Fig. 6.5)
OBSOLETE flues, built with unfit material are outlaw and jeopardise the proper functioning of the ECOMONOBLOCCO
WT 78.
• A PERFECT DRAFT is given mainly by a flue free from obstacles such as bottlenecks, horizontal paths, corners; any
displacements of the axis must have an inclined path with a max angle of 45° with respect to the vertical, better still if only
30°. These displacements must be carried out preferably in proximity of the chimney pot.
• The SMOKE FITTING between the furnace and the flue should have the same section of the outlet of the fumes of the
Ecomonobloccco W78. Fitting the fumes must be sealed and the use of extensible flexible metal pipes is prohibited.
The changes of direction with respect to the smoke exhaust of the appliance must be made with elbows not greater than
45° with respect to the vertical.
• The CHIMNEY must be of type WINDPROOF with internal section equivalent to the one of chimney and the passage
section of the exhaust smoke at least TWICE the one inside the chimney.
• To avoid inconveniences in forced draft, each furnace should have its own independent fumes evacuation system. In
case of multiple flues on the roof it is appropriate that the other are at least 2 meters away and that the chimney of the
fireplace OVERHANGS the others by at least 40 cm (Fig. 6.4). If the chimneys are side by side, provide partitions.
• In Fig. 6.6 (FLAT ROOF; B technical volume) and Fig. 6.7 (INCLINED ROOF; B over the ridge) here are some advices
relating to the minimum distances and the positioning of the chimneys.
• If the chimney that you want to use for the installation was previously connected to other stoves or fireplaces, it is
necessary to carry out a thorough cleaning in order to prevent anomalous operations and to avert the danger of fire of the
unburned matter deposited on the inner walls of the chimney.
• In normal operating conditions the cleanliness of the chimney should be carried out at least once a year unless different
regulations.
FIG. 6.4 -
2 m
0,4 m
cod. 004777090 MBL - 19/12/2018 - Palazzetti - PN - Italy
42
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