Monessen Hearth BDV300N/PV7 Installation And Operation Instructions Manual page 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.
typical Roof
Support
Application
Figure 38 -
Venting Supports
FP1184
Typical roof/ceiling
support apps.
20301836
FP1184
typical Ceiling
Support
Application
BDV7 Series Direct Vent Gas Fireplace
Horizontal Overhang
2 ft.
Min.
Termination
Vent
Storm Collar
Flashing
Concentric
Vent Pipe
Figure 39 -
Minimum Chimney Clearance
FP1971
Min chimney clearance
Figure 40 -
Roof Flashing
2 ft. Min.
Lowest
Discharge
Opening
12
H*
X
1" Minimum Clearance to
Combustibles
Roof Pitch h (feet)
Flat to 6/12
Over 6/12 to 7/12
Over 7/12 to 8/12
Over 8/12 to 9/12
Over 9/12 to 10/12
Over 10/12 to 11/12
Over 11/12 to 12/12
*H - Minimum height from roof to
lowest discharge opening of vent
3 #5 Sheet Metal
Screws per Joint
Sealant
Storm Collar
TWL101a
TWL101a
Twist Lock Pipe
2/8/99 djt
FP1971
1.0
1.25
1.5
2.0
2.5
3.25
4.0
23