DVS-36 & DVS-42 FRAMING AND FINISHING
Installing Support Brackets (Figure 34)
A horizontal pipe support MUST BE used for each 3 feet of horizontal run. The pipe supports should be placed around 8 inch diameter pipe and nailed in place to framing members. There MUST BE a 3 inch clearance to combustibles above 8 inch diameter pipe and elbows and 1 inch clearance on both sides and bottom of 8 inch pipe to combustibles on all horizontal pipe sections and elbows.
Vertical runs of this vent systems must be supported every 4 feet above the appliance flue outlet by wall brackets attached to the 8 inch vent pipe and secured with nails or screws to structural framing members.
PIPE STRAP
| STUD WALL |
48" | 1" MIN. |
(1219mm) | (25.4mm) |
FLUE OUTLET
Figure 34
10 3/8
12 3/8
Installing Firestops (Figures 35, 36, 37 and 38)
Firestops are required for safety whenever the vent system passes through an interior wall, an exterior wall, or a ceiling. These firestops act as a firebreak heat shield and as a means to insure that minimum clearances are maintained to the vent system.
Cut a
Vertical runs of this system which pass through ceilings require the use of ONE (1) ceiling firestop at the hole in each ceiling through which the vent passes.
Position a plumb bob directly over the center of the vertical vent component and mark the ceiling to establish the center point of the vent. Drill a hole or drive a nail through this center point and check the floor above for any obstructions such as wiring or plumbing runs. Reposition the fireplace and vent system, if necessary, to accommodate ceiling joists and/or obstructions.
EXISTING CEILING JOISTS
NEW FRAMING
| " |
10 | 1/2 |
| |
267mm | |
10 | 1/2" |
| |
267mm | |
CEILING BELOW
Figure 36
101/2"
267mm
10 | 1/2" |
| |
267mm | |
NAILS, 4 REQUIRED
WALL FIRESTOP |
|
HOLE IS |
|
BOTTOM OF WALL OPENING. | CEILING FIRESTOP |
| |
Figure 35 | Figure 37 |
|
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