Venting Installation
Continued
INSTALLATION PLANNING
There are two basic types of direct vent installation:
•Horizontal Termination
•Vertical Termination
Outside air flex installation is required for both horizontal and vertical installation (see page 13).
Horizontal Termination Installation IMPORTANT: Horizontal square terminations require only inner portion of wall firestop. Hori- zontal installations using round termination require exterior portion of wall firestop.
1. Set the fireplace in its desired location and |
determine the route your horizontal vent- |
ing will take. Do not secure the fireplace |
until all venting has been installed. Some |
installations require sliding the fireplace |
in and out of position to make final vent- |
ing connections. Figures 14 and 15 on |
4.Carefully determine the location where the vent pipe assembly will penetrate the outside wall. The center of the hole should line up with the
Female
Locking Lugs
Male
Slots
Figure 8 - Vent Pipe Connections
page 11 show different configurations for |
venting with horizontal termination that |
will help you decide which application |
best suits your installation. Check to see |
if wall studs or roof rafters are in the path |
of your desired venting route. If they are, |
you may want to adjust the location of the |
fireplace. |
Vent Opening
Combustible Wall
111/2"
111/2"
111/2" Inside Framing
2. Direct vent pipe sections and compo- |
(Framing
nents are designed with special |
Vent Opening
Detail)
connections. |
|
ends of the pipes have locking lugs (in- |
dentations). These lugs will slide straight |
into matching slots on the male ends |
of adjacent pipes. Push pipe sections |
together and twist one section clockwise |
approximately |
sections are fully locked (see Figure 8). |
Note: Horizontal runs of vent must be sup- |
ported every three feet. Use wall straps |
for this purpose. |
3. Assemble the desired combination of pipe |
and elbows to the fireplace flue collar. If |
there are long portions of venting run, pre- |
assembled pipe sections may be installed |
as subassemblies for convenience. |
Noncombustible Wall
8 1/2"
Center of
Hole
