16
20303735
VWDV70 Series Gas Fireplace
VentInG InstaLLatIon
VertIcaL sIDeWaLL InstaLLatIon
step 1
Locate vent opening on the wall. It may be necessary to
first position the fireplace and measure to obtain hole lo-
cation. Depending on whether the wall is combustible or
noncombustible, cut opening to size.
Figure 15
(For com-
bustible walls first frame in opening.)
combustible Walls:
Cut a 10
Z\x
”H x 10
Z\x
”W (267 x 267
mm) hole through the exterior wall and frame as shown.
Figure 15
noncombustible Walls:
Hole opening must be 8
Z\x
” (216
mm) in diameter.
VO584-100
Vent Opening
2/99 djt
Vent opening for combustible Walls
10
Z\x
”
(267 mm)
Min.
Fireplace Hearth
Framing Detail
opening for noncombustible Wall
8
Z\x
”
(216 mm)
Fireplace Hearth
FP2293
Figure 15 -
Locate vent opening on wall
10
Z\x
”
(267 mm) Min.
step 2
Secure firestop to the inside frame, center in the 10
Z\x
” x
10
Z\x
” vent opening.
step 3
Place fireplace into position. Measure the vertical height
(X) required from the base of the flue collars to the center
of the wall opening.
Figure 16
step 4
Using appropriate length of pipe section(s) attach to fire-
place with three (3) screws. Follow with the installation of
the elbow.
X
X
Figure 16 -
Vertical Height
Requirement
FP1181
step 5
Measure the horizontal length requirement figuring a 1
Z\v
”
(32 mm) overlap, i.e. from the elbow to the outside wall
cap.
Figure 17
always install horizontal venting on a level
plane.
X
X
Figure 17 -
Horizontal Length
Requirement
FP1182
step 6
Use appropriate length of pipe sections - telescopic or
fixed - and install.
sealing vent pipe and firestop gaps with high tem-
perature sealant will restrict cold air being drawn in
around fireplace.
step 7
Guide the vent terminations 5” and 8” collard into their
respective vent pipes. Double check that the vent pipes
overlap the collars by a minimum 1
Z\v
” (32 mm). Secure
the termination to the wall with screws provided and caulk
around the wall plate to weatherproof. As an alternative to
screwing the termination directly to the wall, you may also
use expanding plugs or an approved exterior construction
adhesive.
support horizontal pipes every 36” (914
mm) with metal pipe straps.
