73D0129
19
DVKHL Series Gas Fireplace
VentInG InStaLLatIOn
InStaLLatIOn FOr VertIcaL terMInatIOn
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
20
to avoid cutting load bearing members.
For optimal flame appearance, a restrictor disk is neces-
sary on straight vertical runs of 10' of more.
•
Runs may not incorporate elbows.
•
The disk is part number 56D3027 and is included
in installation manual packet.
•
Drop the disk into a 5" 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 shown in Figures
19 and 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 ceil-
ing 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 10
Z\x
" (241 mm) square hole in the ceiling using
the locating hole as a center point The opening should
be framed to 10
Z\x
"x10
Z\x
" (241 mm x 241 mm) inside
dimensions as shown in
Figure 22
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 insula-
tion from falling into the required clearance space.
Figure 21.
Otherwise, install firestop below the framed
hole.
Figure 22
2. Assemble the desired lengths of pipe and elbows nec-
essary to reach from the burner system flue up through
the firestop. Be sure pipe and elbow connections are
fully twist-locked.
FP1969
offset w/ wallstrap
Figure 20 -
Offset with Wall Strap and 45° Elbows
Roof Flashing
Wall Strap
45° Elbows
Ceiling Firstop
FP1669
FP1969
firestop w room above
10
1
/
2
"
10
1
/
2
"
FP1970
firestop no room
Figure 21 - If Area Above is a Room, Install Firestop
above Framed Hole as Shown
Figure 22 - If Area Above is Not a Room, Install
Firestop above Framed Hole as Shown
Firestop
Nails
Nails
Firestop
FP1970
