Ravelli MIA 90, User Manual

Page: 105 / 144

User manual MIA 90
Page105
Vers. 1 du 20/10/16
EN
Chimney cap
:
The UNI 10683 prescribes that the chimney cap must meet the following characteristics:
- The flue section must be at least twice the inner section of the chimney;
- Have a structure suitable to prevent water or snow from entering;
- Be built so that in the presence of wind it still ensures fume exhaust
(wind-proof chimney cap)
- the release height measured between the lower covering layer and the
lower point of the fume release into environment must be outside of the
reflux area;
- Be built at safe distance from antennas or parabolic antennas
never be used as a support;
Safe distances for proper installation of chimney terminal:
Reflux area
IT IS MANDATORY TO HAVE THE EXHAUST THROUGH THE ROOF IT IS FORBIDDEN TO DISCHARGE FLUES THROUGH A DIRECT
SYSTEM OR ANY OTHER SYSTEM NON COMPLIANT TO REGULATIONS
The exhaust height must be outside the reflux area calculated according to the figure and the table given above.
Next to the ridge it should be considered the smaller among the two.
Position in relation to other chimneys
If you need to install the chimney near another existing chimney for fume evacuation, it is necessary to respect the distances shown in the table.
Placement in relation to skylights and dormers
The outlet of the chimney cap must be located outside of the clearance zones indicated in the figure.