Installation Instruction
20
20302381
Designer Series Direct Vent Gas Fireplace
When installed as a rear vent unit, this appliance may be
vented directly to a termination located on the rear wall
behind the appliance. Only an Vermont Castings Group
brand termination is allowed for this application.
• The maximum horizontal distance between the rear
of the appliance and the termination is 20" (508 mm).
Figure 19
FP2836
rear wall vent
Figure 19 -
Rear Vent Application Maximum
Horizontal Distance
Maximum
20"
(508 mm)
Top View Flat
Installation
• Only one 45 degree elbow is allowed in these installa-
tions.
1. Rigid vent pipes and ttings have special twist-lock
connections. Assemble the desired combination of pipe
and elbows to the appliance adapter.
The female ends of the pipes
and ttings have three (3) locking lugs (indentations).
These lugs will slide straight into matching slots on
the male end of adjacent pipes and ttings. Push the
pipe sections together and twist one section clockwise
approximately one-quarter turn until the sections are
fully locked. Figure 20
FP1953
rigid pipe
Female Locking
Lugs
Male Slots
Horizontal runs of
vent must be supported
every three feet (914
mm). Use wall straps for
this purpose.
Figure 20 -
Rigid Vent Pipe Con-
nections
2. Refer to venting and termination instructions for further
instructions.
3. Locate and cut the vent opening in the wall. For com-
bustible walls rst frame in opening.
Cut a 12
1
/2" x 10
1
/2" hole
through the interior wall.
Cut a 10
1
/2" x 10
1
/2"
square hole through the exterior wall frame. Figure 21
Hole opening should be 8
1
/2"
(216 mm) in diameter.
4. The center of the hole should align with the center line
of the horizontal rigid vent pipe end. Allow 1/4" minimum
rise per foot. Figure 21
VO584-100
Vent Opening
2/99 djt
10Z\x”
(267 mm)
Min.
Fireplace Hearth
Framing Detail
8Z\x”
(216 mm)
Fireplace Hearth
FP2293
Figure 21 -
Locate vent opening on wall
10Z\x”
(267 mm) Min.
5. Apply a bead of non-hardening mastic around the
outside edge of vent cap. Position the vent cap in the
center of hole on the exterior wall with the word "UP"
on the vent cap facing up. Insure proper clearance of
1" to combustibles is maintained. Attach the vent cap
with four (4) wood screws supplied. Figure 22
For vinyl siding, stucco or wood exterior, use vinyl
siding standoffs between vent cap and exterior wall for
Duravent or Selkirk Terminations only. The vinyl siding
standoff prevents excessive heat from melting the
vinyl siding material. Vermont Castings Group
Termination does not require standoff. Bolt the vent
cap to the standoff or wall. Apply non-hardening mastic
around outside edge of the standoff instead of the vent
cap assembly. Use wood screws provided to attach the
standoff. Figure 23