General Standards; Fireplace Or Chimney Flue - LAMINOX Idro TERMOBOILER Mini Series Instructions For Installation, Use And Maintenance Manual

In general, we refer 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 chimney flue, for outside release of combustion
fumes produced by 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 boiler and a height no less than the one stated
• Never use two stoves, a fireplace and a stove, a pellet 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 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, even if over
sized, 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

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