Viessmann Vitodens 100 WB1 Technical Data Manual page 11

Replacement of Thermoblock VC/VCW
Open flued operation
110
Dimensions
Thermoblock
120
200
The existing water connections are of the same dimensions.
Installation on pre-finished walls
Gas central heating boiler
Gas combination boiler
Standard delivery (including mounting rail)
Balanced flued operation
96
Dimensions
Thermoblock
120
200
Installation on finished walls
Gas central heating boiler
Gas combination boiler
Vitodens 100 as a replacement for
appliances of other makes
407
Vitodens
120
200
Dimension Installation on
prefinished walls
a mm 1 108
b mm 927
c mm
d mm 145
Installation on
finished walls
1 147
966
45 84
184
11