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ÜKY/Duopel Boilers User Manual
The length of the waste gas pipe between the flue and the boiler should not exceed one quarter of
the height of the flue.
The size of the flue gas pipe and the chimney should be larger than the flue gas outlet (flue)
dimensions of the boiler. The boiler chimney installed must be at least 1 meter above flat roofs and
at least 0.4 meters above tiled roofs.
Excess air at high flue temperature, high flue temperature also causes loss of
combustion efficiency.
Excess air causes high flue temperature and high flue temperature causes loss in
combustion efficiency.
It will be appropriate to take some samples before taking bulk amount of the fuel you
will use in the boiler, and if it is suitable for burning, take the remaining amount. Make
sure that the sample you will receive is not wet or damp and it is a pine pellet.
