11
Chimney pot
The chimney pot must meet the following requirements:
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Have the section and the internal form equivalent to that of the flue.
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Have a useful exit section not less than twice that of the flue.
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Be constructed to prevent the penetration of rain, snow, foreign bodies in the flue so that in case
of winds in any direction and inclination, the discharge of the combustion products is assured
(windproof chimney pot).
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The chimney pot must be positioned to guarantee an adequate dispersion and dilution of the
combustion products and, however, outside the reflux area. This area has different sizes and
shapes, depending on the angle of slope of the roof, so it is necessary to adopt the minimum
heights (see figure).
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The chimney pot must be windproof and exceed the height of the peak or, where it is not possible,
comply with the values indicated in the table.
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Any buildings or other obstacles, which exceed the height of the chimney pot, must not be close
to the same chimney pot.
