Cola TERMO JOHANNA Sx Manuel d'installation, d'utilisation et d'entretien - Page 12

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The air necessary for combustion, i.e. up to 25 m³ every hour, must be ensured in rooms where
stoves with natural flue draught are installed. The air change must occur through several fixed
openings to the outside, whose cross section must comply with the current local regulations. Such
openings must be protected with grilles and must never be obstructed.
If the air is insufficient, even the operation of an extractor hood in the room or exhaust fans can
negatively affect stove operation.
2.6 Bottom baffle
Before operating the stove, make sure the bottom baffle, located under the removable stainless
steel oven plate is correctly positioned, i.e. that it allows a sufficient flow of flue gases for proper
operation.
2.7 Advice on flues and connections
Flues must be made from suitable materials and perfectly insulated, with characteristics that
prevent temperature decreases.
The inner walls must be perfectly smooth without any narrowing or protrusions along the entire
length, so as not to create friction or vortices in the smoke which could cause a considerable
reduction in draught.
Any cleaning and inspection doors must be perfectly closed during operation.
The flue outlets must be 0.5 m higher than any obstacles within a radius of 10 m and must end with
chimney caps or cowls having a useful outlet cross section of at least double that of the flue.
The following two figures give the data regarding the distances and positioning of chimney caps in
conformity with the provisions of UNI 10683/98.
The chimney outlet must be at least
0.5 m higher than any obstacle
within a radius of 10 m.
approx 0.5m
Min 0.5m
obstacle
UNI 10683/98 tables
At 0.5m
Less than 5 m
fig. 3a Chimney cap positioning and distances
fig. 3b Chimney cap positioning and distances
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Termo JOHANNA