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Approved Venting/Chimney Configurations
C. Vertical Venting (straight up through roof)
In this venting configuration, the pipe rises directly from Fireplace
and goes up through the roof, terminating above the roof without the
addition of more elbows. See illustration 6.3.
Note: Each additional elbow reduces the maximum rise by 3 feet.
Refer to the Simpson-Dura Vent instructions regarding installation
of your Direct-Vent system.
ALL VENT CLEARANCES MUST BE MAINTAINED.
CHECK YOUR VENT CLEARANCES AGAINST THE
ILLUSTRATIONS AT RIGHT, AND CHART ABOVE.
MINIMUM AND MAXIMUM DISTANCES
• Maximum vertical rise .....................................................24'
• Optional ...1
1
/
2
" restrictor ring at the elbow in the Fireplace
Height of termination above roof must conform to chart
below
Roof Pitch
A Minimum height from roof
to lowest discharge opening
Flat to 6/12
1.0 feet
6/12 to 8/12
2.0 feet
8/12 to 10/12
3.0 feet
10/12 to 12/12
4.0 feet
Lowest
Discharge
Opening
Liste
d
Cap
Liste
d
Gas
12"
Roof Pitch is X/12
Minimum Height
from Roof to Lowest
Discharge Opening
24' Max.
A
A
P
!
Illustration 6.3
Illustration 6.4
