Installation Options - Buderus Logano GB125 BE Installation And Maintenance Instructions Manual

5
Installing the boiler
5.3

Installation options

The GB125 boiler is approved with the following flue gas
systems available from Buderus:
I Concentric air supply and
or flue pipe exiting through
HT-K external wall.
II Concentric supply air and
or flue gas routing via roof.
DO
III Concentric air/flue gas
or routing through a flue
GA-K inside a duct.
Tab. 11 Installation options
To prevent reverse flow of flue gas into the air
intake even with wind influence, the included
wall terminations must be used.
Table 12, page 21 shows the maximum permissible vent
length for the different types of systems.
20
Types of installation Description
Horizontal direct vent concentric
combustion air and venting pipe
system.
Vertical concentric supply air and
flue gas routing.
Flue pipe inside an existing masonry
chimney similar to a liner. Chimney
chase used as a raceway to bring in
combustion air. Concentric supply
air and flue gas routing from the
chimney to the boiler.
Installation type III or GA-K may not be
suitable for homes with a double flue chimney
where the second flue is used with a second
combustion appliance.
Logano GB125 BE US/CA - Subject to technical modifications.