4
54D0700
FP1969
firestop w room above
9
1
/
2
"
9
1
/
2
"
FP1970
firestop no room
BDV Series Gas Fireplace
VENt INStALLAtION
1. Determine the route your vertical venting will take. If ceiling
joist, roof rafters or other framing will obstruct the venting
system, consider an offset. Refer to
Figure 30
to avoid cut
-
ting load bearing members.
For optimal flame appearance, a restrictor disk is necessary
on straight vertical runs of 20' of more.
• Runs may not incorporate elbows.
• The disk is part number 45D0551 and is included in
installation manual packet.
• Drop the disk into a 4" inner collar before installing the
first section of flue or install at the last section before
installing the termination.
• An additional disk may be installed on runs of 35' or
more. Rotate disks perpendicular to each other.
NOTE: Pay special attention to these installation instructions
for required clearances (air space) to combustibles when
passing through ceilings, walls, roofs, enclosures, attic
rafters, etc. Do not pack air spaces with insulation. Also
note maximum vertical rise of the venting system and any
maximum horizontal offset limitations. Offsets must fall
within the parameters shows in Figure 13, page 20.
2. Set fireplace in desired location. Drop a line plumb down
from the ceiling to the position of the flue exit. Mark the
center point where the vent will penetrate the ceiling. Drill
a small locating hole a this point.
Drop a plumb line from the inside of the roof to the ceiling
locating hole in the ceiling. Mark the center point where
the vent will penetrate the roof. Drill a small locating hole
at this point.
FLAt cEILING INStALLAtION
1. Cut a 9
1
/
" (241 mm) square hole in the ceiling using the
locating hole as a center point The opening should be
framed to 9
1
/
" x 9
1
/
" (241 mm x 241 mm) inside dimen-
sions as shown in
Figure 32
using framing lumber the same
size as the ceiling joist. If the area above the ceiling is an
insulated ceiling or a room, nail firestop from the top side.
This prevents loose insulation from falling into the required
clearance space.
Figure 31.
Otherwise, install firestop
below the framed hole.
Figure 32
2. Assemble the desired lengths of pipe and elbows necessary
to reach from the burner system flue up through the firestop.
Be sure pipe and elbow connections are fully twist-locked.
Figure 15, page 18
INStALLAtION FOR VERtIcAL tERMINAtION
FP1969
offset w/ wallstrap
FP1669
Figure 30 - Offset with Wall Strap and 45° Elbows
Roof Flashing
Wall Strap
45° Elbows
Ceiling Firstop
Figure 31 - If Area Above is a Room, Install
Firestop above Framed Hole as Shown
Figure 32 - If Area Above is Not a Room, Install
Firestop above Framed Hole as Shown
Firestop
Nails
Nails
Firestop
FP1969