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Installation, Operation and Maintenance Manual Sealed Combustion Gas Boiler Logano GA244 • Issue 02/2004
Buderus Heiztechnik GmbH • http://www.heiztechnik.buderus.de
Installation of the Exhaust and Air Intake System10
10.2 Installation of Vertical Venting System
Follow all instructions concerning assembly of the
individual venting components. Follow in particular the
instructions furnished by the vent pipe manufacturer.
The combustion air is ducted in using a concentric 6" or
7“ pipe configuration in a vertical venting application
Fig. 12.
Observe the vent extension above the roof line as
shown in Fig. 12.
The maximum length of the concentric "through the roof"
venting is 10 ft. (see Fig. 12).
Observe the maximum length of the entire vent system
including the concentric piping based on Table 7,
page 24 to Table 9, page 25.
The concentric piping permits a zero clearance to
combustibles. Note, however, that the exhaust vent
pipe leading up to the concentric piping requires a 2"
minimum clearance to combustibles.
Install fire stop plates when penetrating the roof (Fig. 12,
Item. 2).
Fig. 12 Vertical venting system (sealed combustion)
Item. 1: Wall terminal body
Item. 2: Fire stop plate
Item. 3: Support of vent system
Item. 4: Condensate drain
1
2
3
3
4
NOTICE !
Only venting components and concentric
vent pipe manufactured by Heat-Fab type
SAF-T Vent can be used for vertical
venting applications. Please contact
Buderus Hydronic Systems,Inc. for
assistance in selecting proper venting
components.
NOTICE !
Ensure that a condensate drain is always
installed at the boiler exhaust connection.
Fig. 13 Vertical venting system (Room air only)
Item. 1: Roof termination
Item. 2: Fire stop plate
Item. 3: Support for vent system
Item. 4: Condensate drain
1
2
3
3
4
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