Viessmann vitodens Technical Manual page 138

4.3 Flue gas system components
Components of the flexible single pipe system incl. flexible flue pipe
Flue pipe, flexible
Standard pack (L) 8, 12.5 or 25 m on a roll
84
80
74
Pipe lowering attachment
with 20 m rope
100
4
Spacers
Standard pack 5 pieces
(applicable for internal shaft dimensions
130 × 130 mm to 250 × 250 mm or
∅ 150 mm to ∅ 300 mm)
138
Inspection piece (straight)
266
Union
110
79
Duct cover
with terminal piece
80
350
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