Viessmann Vitodens 200 WB2 Series Technical Data Manual page 27

Maximum/Minimum Vent Length
Vent length "a"
Maximum vent length
Boiler model
a (max. length)
3" vent system
4" vent system
Minimum vent length
Boiler model
a (max. length)
3" vent system
4" vent system
a
Do not exceed maximum equivalent vent length or fall short of minimum
equivalent vent length.
IMPORTANT
Ensure that the venting system is properly
supported; the Vitodens 200 boiler is not
designed to support the weight of the
venting system.
WB2 6-24C 6-24
ft./m 66/20 66/20 49/15
ft./m -- --
WB2 6-24C 6-24
ft./m 4 ft. / 1.2 m
ft./m
Venting Option
8-32 11-44 15-60
-- --
-- 66/20 49/15
8-32 11-44 15-60
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