SENKO cookers SG –
Instruction manual
8
mechanical appliances for flue gases suction are not allowed.
1.3.2.
CHIMNEY FUNCTION
Among all the meteorological and geographical factors that influence
the chimney function (rain, fog, snow, insolation period, etc.) the wind is
most certainly the crucial one. Apart from the pressure caused by the
temperature difference between the flue gases and the outer chimney air,
there is another type of pressure – wind dynamic pressure.
Roof
slope
Distance between the
roof ridge and the
chimney
Minimum chimney height
(measured from the roof
surface)
A
, m
H
min
, m
15°
< 1,85
0,5 m above the roof ridge
> 1,85
1 m from the roof
30°
< 1,5
0,5 m above the roof ridge
> 1,5
1,3 m from the roof
45°
< 1,3
0,5 m above the roof ridge
> 1,3
2 m from the roof
60°
< 1,2
0,5 m above the roof ridge
> 1,2
2,6 m from the roof
Figure 2
FLAT ROOF
PITCHED ROOF
Z=REFLUX ZONE
