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In general, refers to regulations concerning "heat generators fed with wood and other solid fuels", UNI
10683:2012.
1.1
Fireplace or Chimney flue
Each device must have a vertical duct, called a chimney flue, for outside release of combustion fumes
produced by a natural draft.
The chimney flue must meet the following requirements:
• It must not be connected to any other fireplace, stove, boiler, or hood of any kind (Fig. 1).
• It must be properly spaced from combustible or flammable materials through an air gap or suitable
insulating material.
• The internal section must be uniform, preferably circular: the square or rectangular sections must have
rounded corners with a radius of no less than 20 mm, maximum ratio between the sides of 1.5, walls as
smooth as possible and without restrictions, curves must be regular and seamless, deviations from the
axis no greater than 45° (Fig. 2).
• Each device must have its own chimney flue with a section equal to or greater than the diameter of the
fume exhaust pipe of the stove and a height no less than the one stated.
• Never use two stoves, a fireplace and a stove, a stove and a wood stove, etc. in the same room since the
draft of one could damage the draft of the other. In addition, collective ventilation ducts that can cause a
vacuum in the installation environment are not permitted, even if installed in adjacent rooms and
communicating with the installation room.
• Creating fixed or mobile apertures on the chimney flue to connect equipment other than auxiliary devices
is prohibited.
• Passing other air supply channels and piping for utilities through the chimney flue, however large, is
prohibited.
• The chimney flue should be equipped with a collection chamber for solid materials and any condensate,
located below the mouth of the flue, so as to be easily opened and inspected from an airtight door.
• Whenever using parallel output chimneys, it is advisable to raise a bracing element. (Fig.3)
1
GENERAL STANDARDS
5
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