SENKO fireplaces
–
Instruction manual
9
The wind also influences the chimney function indirectly by creating
areas of high (overpressure) and low (underpressure) pressure, both inside
and outside the residential area (
figure 3
).
Pressure that facilitates chimney function can occur in rooms directly
exposed to the wind (B), but it can also adversely affect the chimney
through external pressure if the chimney is situated on the side exposed to
wind (A). Contrary to that, underpressure can occur in lee rooms (C),
adversely affecting functions of the chimney situated on the opposite side
(D) from the wind direction.
wind
descending
wind
A
B
C
D
figure 3
A-B
zones in overpressure
C-D
zones in underpressure
