74D3000
0
BLDV7 Series Gas Fireplace
Vent InStaLLatIon
1
2
3
4
1
2
3
4
12” Min.
Figure 24 -
Maximum Elbow
Usage
FP1179
VertICaL throuGh-the-rooF InStaL-
LatIon
note:
For all top vent vertical through-the-roof installa-
tions, install the supplied cross-bar flue restrictor onto the
top edge of the firebox flue adapter.
Figure 25
1. Locate your fireplace.
. Plumb to center of the
(4”) flue collar from ceiling
above and mark position.
3. Cut opening equal to 9
C\v
” x
9
C\v
” (48 x 48 mm).
4. Proceed to plumb for addi-
tional openings through the
roof. In all cases, the
opening must provide
a minimum of 1 inch
clearance to the vent
pipe, i.e., the hole must
be at least 9
C\v
” x 9
C\v
” (48 x 48 mm).
5. Place fireplace into position.
6. Place firestop(s) or Attic Insulation Shield into position
and secure.
Figure 26
7. Install roof support
(Figure 27)
and roof flashing mak-
ing sure upper flange is below the shingles.
Figure 29
8. Install appropriate pipe sections until the venting is
above the flashing.
Figure 29
9. Install storm collar and seal around the pipe.
10. Add additional vent lengths for proper height.
Figure
28
11. Apply high temperature sealant to 4” and 7” collars of
vertical vent termination and install.
FP2304
CDV7 top restrictor
3/09
Figure 25 -
Vertical Through-the-Roof
Restrictor (Part #69D3006)
FP304
FP1029
attic insulation shield
firestop spacers
1/28/00 djt
attic Insulation
Shield
(7DV1aIS)
upper Floor
11”
(79 mm)
Ceiling Installation
Joist
Firestop
Spacer
Nails (4)
FP109
Figure 26 -
Place Firestop Spacer(s) and Secure
If there is a room above ceiling level, fire stop spacer must
be installed on both the bottom ad the top side of the ceil-
ing joists. If an attic is above ceiling level an Attic Insula-
tion Shield must be installed. The enlarged ends of the
vent section always face downward.
FP1184
Typical roof/ceiling
support apps.
typical roof
Support
application
typical Ceiling
Support
application
FP1184
Figure 27 -
Venting Supports
1 + + 3 + 4 = 70°
