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Installation, use and maintenance guide
Urban
– Urban E
9 – SMOKE DISCHARGE TUBE AND VENTILATION OF THE ROOMS
9.1 FOREWORD
Due to the frequent accidents caused by poor functioning of flue outlets installed in private dwellings, we have prepared
the following paragraph to assist the installer in his inspection of the parts concerned with eliminating the gases
produced by combustion.
The smoke outlet and the air intakes must be fitted in compliance with standards UNI 10683 and EN 14785 and it must
observe the reference values laid down in the standard, in particular, the outlet must comply with fire prevention
regulations. This chapter is not intended to replace these standards.
It is important to carefully follow the instructions included in these standards: failure to observe these
instructions could cause serious damage to the product, to the system, to objects and to persons using the
generator.
9.2 ROOM VENTILATION
The air intakes and the room ventilation must comply with regulation UNI 10683.
ATTENTION: the presence of extraction fans or similar appliances, if operating in the same room or space in which the
product is installed, could cause problems for the correct operation of the product.
ATTENTION: do not obstruct the vents or the air inlets on the appliance.
The room where the appliance is installed must have a good air flow to guarantee air for the appliance for the combustion process
and for ventilation of the room. The natural air flow must take place directly through permanent openings on the outer walls or through
ventilation ducting.
The ventilating air must come from outside and if possible, away from sources of pollution. The openings in the walls must comply
with the following conditions:
• have an unobstructed section of at least 6 cm² for each Kw of installed thermal power, with a minimum limit of 100 cm²;
• be made in such a way that the vent openings, both on the inside and outside of the wall, cannot be obstructed;
• be protected with grills or similar systems that do not reduce the opening section indicated above;
• be situated at a height near floor level and they must not obstruct the correct operation of the combustion product discharge devices;
if this position is not possible the section of the ventilation openings must be enlarged by at least 50%.
9.3 SMOKE OUTLET
The exhaust pipe must comply with regulation UNI 10683.
The smoke channel, the exhaust pipe, chimney and flue outlet (defined as the system for the evacuation of combustion
products), are parts of the heating system and they must comply with the legislative requirements of the Ministerial
Decree DM 37/08 (ex Italian Law 46/90) and to the applicable specific installation regulations, according to the type of
fuel. Fireplaces, stoves and barbecues must not be installed in locations where gas appliances type A and type B are
present and operating (for the classification see UNI 10642 and UNI 7129). The connection between the appliance and
the flue outlet must only receive exhaust from one heat generator.
The installer must provide one or more access points on the flue outlet to check the emissions once the appliance has
been installed; these access points must be made in such a way as to be air-tight sealable to prevent exhaust gas
leaks.
The appliance is equipped with a smoke exhaust motor, it works in low pressure and with very low smoke temperatures,
consequently it is recommended to insulate it and to ensure that the flue outlet is sized appropriately in order to avoid
the possible risk of creating condensation.
