Wolf CGB-75 Installation And Operating Instructions Manual page 48

Wall mounted gas condensing boiler
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Minimum duct sizes
applicable to open flue and room sealed operation
C93x room sealed in a duct
DN 110
4
C93x room sealed
System DN 110/160
horizontal and DN 110
vertical
Air/flue gas routing, rigid in a shaft
Min. duct sizes
Circular Ø
DN 110
190 mm
DN160
250 mm
48
28. Technical information
>20
Rectangular
170 mm
230 mm
5
C33x balanced flue
in a duct DN 110/160
B33 open flue
in a duct DN 110
B33
3062555_201804
>30

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