Biodom C15 - Smoke Gas Extraction; Connection and Earthing; Flue Pipe Condition

Biodom C15 | instructions for use, maintenance and installation | February 2019
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6.2. EXTRACTION OF SMOKE GASES
Extraction of smoke gases must be in accordance with regulations in force. Pipes for smoke gases must
not be connected to other discharge pipes of any other combustion device (figure 2). It is prohibited
to set up extraction of smoke gases into closed and/or semi-closed spaces, e.g. garage, narrow passages
or hallways, underpasses or any other similar spaces. If the flue connection is not suitable, it must be
implemented in accordance with previously provided requirements.
Figure 2
ATTENTION
Extraction of smoke gases must be earthed in accordance with regulations in force. (Earthing
connection is required by law).
Earthing must be independent of combustion unit.
Regarding dimensions and material, from which it is made, the flue pipe must conform to standards
UNI 9615-9731, UNI 10683 - EN1856-1.
Flue pipes in poor condition and/or made of unsuitable materials (asbestos, zinced sheet metal etc.,
with rough or porous surfaces) are prohibited by law and compromise proper boiler operation.
Smoke can be extracted through a traditional flue pipe (see figure below) provided that the following
rules are met:
• check condition of flue pipe maintenance. For proper maintenance and/or restoration contact
chimney sweep service;
• extraction of smoke gases can be connected directly to flue pipe only if it has a maximum
dimension of 20 x 20 cm or diameter of 20 cm and is fitted with inspection hole;
• if the flue pipe is of greater dimensions, a stainless pipe (with required diameter) with proper
insulation must be installed into it;