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SECTION C: Installation
25
Fig. 21: Typical Common Venting
Horizontal Through-the-Wall Direct
Venting (Category IV)
Fig. 22: Horizontal Through-the-Wall Venting
Fig. 23: Alt. Horizontal Through-the-Wall Venting
NOTE: While a drain connection is required in the
vent of all MVB installations, the drain can be ac-
complished in several different ways. The figures in
this manual show the drain in a vent tee, however,
this can also be accomplished using an inline collec-
tor for condensing stacks or an inline vertical or
horizontal collector available from several of the
listed vent manufacturers.