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8.4
HEIGHT-DEPRESSION
The depression (draught) of a chimney flue depends also on its height. Check the depression with the values
EN
provided at FEATURES page 37. Minimum height 4,5 meters.
8.5
MAINTENANCE
• The chimney flue must be cleaned, since the soot and unburnt oil deposits reduce its section so blocking the
draught. In great quantities they can flare up.
• The fumes extraction pipes (fumes conduit + chimney flue + chimney pot) must always be cleaned, scrubbed
and checked by an expert stove-repairer, in compliance with current regulations, with the instructions of the
stove-manufacturer and the directives of your insurance company.
• In case of doubts, please follow the most restrictive regulations.
• Have your chimney flue and chimney pot checked and cleaned by an expert chimney sweep at least once
a week. The chimney sweep has to release a written declaration about the security of the system.
• Not cleaning compromise safety.
8.6
CHIMNEY POT
The chimney pot is important for the correct running of the heating appliance:
• We recommend using an anti-wind chimney pot, see Fig. 4 page 8.
• The hole width for fumes exhaust must be the double of the chimney flue width and fitted in a way that the
fume exhaust is assured also in case of wind.
• It should prevent the infiltration of rain, snow and animals.
• The outlet height in the atmosphere must be away from the reflux area caused by the roof structure or by
obstacles laying nearby (see FEATURES page 37).
8
Fig. 4 - Anti-wind chimney pots
DEMETRA
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