E. Use of Flex Vent
The flex vent must be supported with the spacing between support intervals not ex- ceeding 4 feet, with no more than ½ inch sag between supports.
A support is required at each change in venting direction, and in any location where it is necessary to maintain the necessary clearance to combustibles. A simple “up and out” installation (Figure 7.3) requires only enough support to maintain the neces- sary clearance to combustibles. However, the vent attachment point and the firestop location are considered to be supports.
3 in. CLEARANCE
Figure 7.3
TERMINATION
CAP
1in.
CLEARANCE
Hearth & Home Technologies • DV3732SBI, DV3732SBIL • | 23 |
