Multiple Boiler Installations - Viessmann Vitodens 100-W WB1B Series Installation Instructions Manual

Rigid Venting Systems Installation Instructions
Component Installation Guide
Multiple boiler installations (Vertical termination with
multiple boilers)
Fig. 89
Fig. 90
(continued)
4 in.
(100 mm)
4 in.
(100 mm)
Single Pipe Venting (Room Air Dependent)
When terminating the vent pipes of multiple Vitodens
boilers, a minimum clearance of 4 inches (100 mm) is
required between the outside edges of each vent pipe.
4 in.
4 in.
(100 mm)
(100 mm)
6 in.
(150 mm)
83