Eng. Edition 1.0 2004, Nov.
7
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Check the exhaust gas temperature. Directly after the boiler it should be 160
to 200ºC. Too low temperature will cause condensation and lead to
corrosion and freezing damage. Too high temperature can damage the
chimney and is also uneconomical.
•
Condensation in the chimney must be attended to. First check and adjust the
temperature. The exhaust gas temperature shall be at least 80 ºC measured
one meter down from the top of the chimney. A draft regulator is effective
while it is ventilating the chimney but if that does not help, a steel tube
insert should be mounted in the chimney.
