17
2-INSTALLATION
Technical Dept. - All rights reserved - Reproduction is prohibited
CONNECTION TO THE FLUE
The connection between the flue and the appliance must be via a smoke duct that complies with EN 1856-2. The connecting section must
extend no more than 4 m horizontally, with a minimum slope of 3% and with a maximum of 3 90% bends (accessible for inspection - do
not count the T fitting at the appliance outlet).
The diameter of the smoke duct must be equal to or greater than that of the outlet of the appliance (Ø 100 mm).
TYPE OF SYSTEM
SMOKE DUCT
Minimum vertical length
1.5 metres
Maximum length
(with 1 accessible 90° bend)
6.5 metres
Maximum length
(with 3 accessible 90° bends)
4.5 metres
Maximum number of accessible 90° bends
3
Horizontal sections
(minimum slope 3%)
4 metres
Use smoke ducts with a diameter 100 mm and silicone gaskets or similar gaskets that can withstand the high operating temperatures
of the appliance (min. T200 class P1).
The use of flexible metal hoses made of fibre cement or aluminium is forbidden. For
direction changes, we always recommend the use of a T fitting
with an inspection cap ensuring easy access to clean the pipes.
Always ensure that the inspection cap is put back in place and sealed hermetically with the relevant seal intact after cleaning.
It is prohibited to connect more than one appliance to the same smoke duct, or the discharge from hoods above it. It is forbidden to extract
the combustion products directly through the wall, whether into indoor spaces or outdoors.
The smoke duct must be at a minimum distance of 400 mm from flammable or heat-sensitive structures.
We especially recommend to check the data tags of the flue for the safety distances that must be observed in presence of
combustible materials and the type of insulating material to be used. These indications must be followed rigorously to
avoid serious harm to personnel and surrounding infrastructure.