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3062880_0910
Ventilation air/flue gas routing
Engineering information,
combustion air / flue gas routing
1)
For type B23, the combustion air is drawn from the installation room (open flue combustion equipment).
2)
When utilising the roof outlet (part no. 2651097) a protective grille (part no. 2651230) is required.
For type C, the combustion air is drawn through a sealed system from the outside (balanced flue combustion
equipment)
Connection types
Boiler
type
Gas boiler
type 1)
Category
Germany
Operating mode
Can be connected to
Open flue
Balanced
flue
Moisture-
resistant
chimney
Room
sealed
balanced
flue
Room
sealed
balanced
flue
Building
Regulation
approved
Flue
Moisture-
resistant flue
MGK
B23, B33,
C33
2)
, C43,
C53, C63, C83
II
2H3P
2)
Yes
Yes
C83
C43
C33, C53,
C63
C53, C63
B23, C53, C83