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20306741
21
BLDV7 Series Gas Fireplace
VENTING INSTALLATION
TWL101a
Twist Lock Pipe
2/8/99 djt
3 #5 Sheet Metal
Screws per Joint
Sealant
Storm Collar
TWL101a
Figure 29 -
Roof Flashing
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
HorizontalOverhang
Figure 28 -
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
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