BDV7 Series Direct Vent Gas Fireplace
20301836
23
VeNtING INStAllAtIoN
10. Add additional vent lengths for proper height.
Figure
40
11. Apply high temperature sealant to 4” and 7” collars of
vertical vent termination and install.
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 38 -
Venting Supports
2 ft.
Min.
2 ft. Min.
X
12
H*
FP1971
Min chimney clearance
Termination
Vent
Storm Collar
Flashing
Lowest
Discharge
Opening
Concentric
Vent Pipe
1” Minimum Clearance to
Combustibles
FP1971
Horizontal Overhang
Figure 39 -
Minimum Chimney Clearance
Roof Pitch
h (feet)
Flat to 6/12
1.0
Over 6/12 to 7/12
1.25
Over 7/12 to 8/12
1.5
Over 8/12 to 9/12
2.0
Over 9/12 to 10/12
2.5
Over 10/12 to 11/12
3.25
Over 11/12 to 12/12
4.0
*H - Minimum height from roof to
lowest discharge opening of vent
TWL101a
Twist Lock Pipe
2/8/99 djt
3 #5 Sheet Metal
Screws per Joint
Sealant
Storm Collar
TWL101a
Figure 40 -
Roof Flashing
