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2.2.1 Outside wall extraction
One of the installation solutions that may be adopted is that of placing the pellet
heater close to an outside wall of the room so that the fumes are extracted
directly to the outside (figure 2.4).
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Always guarantee that there is an inspection valve (I) that will allow
effective and periodic cleaning to be carried out, and any condensation
formed to be eliminated;
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The cowl (T) must be strictly windproof and rainproof;
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Insulate the fume extraction flue appropriately in the section where it goes
through the wall.
The fume extraction flue that is completely outside must be made of double-wall
stainless steel in order to guarantee that there is both greater resistance to
atmospheric agents and correct fume extraction temperature.
Figure 2.4: Outside wall
extraction
INS
2.2.2 Roof extraction by means of a traditional flue