10. Drill two Ø 8 mm holes for the fixing bracket in the appropriate height. Install
the fixing bracket on the corresponding position on the wall (s. fig. below).
11. Attach the outer chimney by fixing it at both sides (s. fig. A).
12. The inner chimney can be attached in two ways:
I.
Attach the inner chimney by fixing it at both sides (s. fig. A).
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