Prior to installation
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a smoke or exhaust lue that is currently used for
ventilating rooms in which stoves or ireplaces are
Exhaust air may be discharged in accordance
with oficial and statutory regulations only (e.g.
discharging air into smoke or exhaust lues that are
air mode simultaneously with a different burner
which also makes use of the same chimney
(such as gas, oil or coal-ired heaters, continuous-
low heaters, hot-water boilers) care must be taken
ensure that there is an adequate supply of
does not exceed 4 Pa (0.04 mbar).
This can be achieved if combustion air can low
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Note: When assessing the overall requirement, the
For optimum extractor hood eficiency:
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If long, rough exhaust-air pipes, many pipe
cepts no liability for complaints which can
be attributed to the design and layout of the
, a telescopic wall box should be itted into