Extension
Dimension [mm]
7
mm
a
b
c
125/150
150
125
210
150/200
200
150
310
200/250
250
200
300
Cowl, roof outlet
Ø a
Ø b
115
25
Cowl
Dimension [mm]
7
mm
a
b (clamping area)
150
310
170-180
200
410
225-235
Note
Only use if the flue pipe is being used as a ventilation air line.
Roof outlet
d
e
Ø b
Ø a
c
Roof out-
let
Dimension [mm]
7
mm
a
b
c
d
e
150
160
180.4
1513
859
132
200
200
230.4
1500
834
128
Balanced flue roof outlet
Ø 110
Ø 150
775
1195
Above roof extension
Ø 110
Ø 179
500
455
Design information
(cont.)
42
VIESMANN
Gas condensing boilers
8
5822 449 GB