DT2010024-02
1.1 Single flueway or chimney
Every appliance must have a vertical flue pipe operating by natural
draught to discharge the combustion gases outdoors.
T
he flue must:
- comply with regulations in force in the place of installation of the
appliance;
- be tight to the products of combustion, waterproof, suitably insu-
lated, made with materials resistant to the corrosion of the gases
a
nd to stress;
- be connected to just one stove, fireplace or extraction hood;
- be properly sized, with constant free internal section, equal to or
greater than the diameter of the flue pipe of the stove and at least
3.5 m in length;
- be mainly in a vertical position with a deflection from the axis of no
more than 45° (Fig. 2);
- be at a suitable distance from combustible or flammable materials,
ensured by an air gap or suitable insulating material;
- be of uniform internal section, preferably round. Square or rectan-
gular sections must have rounded corners with a radius of at least
20mm and a maximum ratio between the sides of 1.5 (Fig. 4). The
walls must be smooth if possible and without narrowing. Bends
must be regular and without discontinuity (Fig. 3 - 4 - 5).
It is forbidden to make fixed or mobile apertures on the flue
pipe to connect appliances other than the one to which it is al-
ready connected.
It is forbidden to pass other air ducts or service pipes inside
the flue pipe, however large it is.
If the flue pipe is an incorrect size or installed other than in
compliance with the above instructions, Gruppo Piazzetta
S.p.A. cannot be held liable for malfunctioning of the product,
damage to property or injury to persons or animals.
DT2010031-01
1.2 Soot inspection
We recommend that the flue must have a chamber for collecting solid matter and any condensate located below the connection and which
may be easily inspected by means of an airtight door. (Fig.1)
D
T2030049-00
DT2030050-00
Fig. 2
Fig. 3
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