Monessen Hearth CDV7 User Manual
CDVSC7 & CDV7 Series Gas Fireplace
69D3011
VenTInG InSTallaTIon
VeRTICal SIDewall InSTallaTIon -
TwIST loCK pIpe
TwIST loCK pIpe
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 26 (For com-
bustible walls first frame in opening.)
noTe: When using flex vent, the opening will have to be
measured according to the 1/” (13 mm) rise in 1” (305
mm) vent run.
Combustible walls: Cut a 9B\,”H x 9%\,”W (44 x 44 mm)
hole through the exterior wall and frame as shown. Figure
26
noncombustible walls: Hole opening must be 7Z\x” (191
mm) in diameter.
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 26 (For com-
bustible walls first frame in opening.)
noTe: When using flex vent, the opening will have to be
measured according to the 1/” (13 mm) rise in 1” (305
mm) vent run.
Combustible walls: Cut a 9B\,”H x 9%\,”W (44 x 44 mm)
hole through the exterior wall and frame as shown. Figure
26
noncombustible walls: Hole opening must be 7Z\x” (191
mm) in diameter.
VO584-100
Vent Opening
2/99 djt
Vent Opening
2/99 djt
Vent opening for Combustible walls
9B\,”
(44 mm)
Fireplace Hearth
Framing Detail
opening for noncombustible wall
7Z\x”
(190 mm)
Fireplace Hearth
FP93
Figure 26 -
Locate Vent Opening on Wall
Locate Vent Opening on Wall
9B\,”
(44 mm)
Step 2
Secure firestop to the inside frame, center in the 9B\," x
9B\," vent opening.
9B\," 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 27
(X) required from the base of the flue collars to the center
of the wall opening. Figure 27
X
X
FP1181
Figure 27 -
Vertical Height Requirements
Vertical Height Requirements
Step 4
Using appropriate length of pipe section(s) attach to fire-
place with three (3) screws. Follow with the installation of
the inner and outer elbow, again secure joints with three
(3) sheet metal screws.
place with three (3) screws. Follow with the installation of
the inner and outer elbow, again secure joints with three
(3) sheet metal screws.
Step 5
Measure the horizontal length requirement including a ”
(51 mm) overlap, i.e. from the elbow to the outside wall
face plus ” (51 mm) (or the distance required if installing
a second 90° elbow). Figure 28
(51 mm) overlap, i.e. from the elbow to the outside wall
face plus ” (51 mm) (or the distance required if installing
a second 90° elbow). Figure 28
always install horizontal venting on a level
plane.
X
X
FP118
Figure 28 -
Horizontal Length Requirement
Horizontal Length Requirement