Vent Termination Spacing; Multiple Boiler Installations (Vertical Termination With Multiple Boilers) - Viessmann Vitodens 200-W WB2B Series Installation Instructions Manual

Single Pipe Venting (Room Air Dependent)

Vent Termination Spacing

Multiple boiler installations (vertical termination with
multiple boilers)
Multiple boiler installations (horizontal termination with
multiple boilers)
72
Vitodens Rigid and Flex Venting Systems Installation
When terminating the vertical vent pipes of multiple
Vitodens boilers, a minimum clearance of 4 inches
(100 mm) is required between the outside edges of
each vent pipe.
When terminating the horizontal vent pipes of multiple
Vitodens boilers, a minimum clearance of 12 inches
305 mm) is required between the outside edges of each
vent pipe.
Note: termination elbows can be 45
o
o
or 90 .