Viessmann Flue gas system Installation Instructions Manual page 28

Vertical outlet for sloping or flat roofs (cont.)
System size 100
1. Remove top part
2. Push above-roof extension
roof outlet.
3. Push top part onto above roof
1
extension
2
Note
For extensions ≤1 m, secure the roof
outlet with guy ropes (can be secured to
the above-roof extension).
of the roof outlet.
1
onto the
2
27