18
WARNING: A minimum clearance to combustibles must be maintained around the vent pipe of
2” on horizontal pipe runs and 1” on vertical pipe runs.
This model is certified for a maximum horizontal run of 10’ and maximum vertical height of 30’.
NOTE: The shaded areas on the vent diagrams indicate where vent restrictor’(s) are to be used.
Figure 11
Horizontal Wall Vent Terminations
The position of the horizontal vent termination must be positioned in such a way as to meet all local
building codes. Attach the correct length of vertical section pipe and an elbow fitting to the stove.
Mark the center line of the pipe facing the wall (allowing for a ¼” rise per foot of horizontal, example:
10 ft. of horizontal would require a rise of 2 ½”)
NOTE: ALLOWING THE VENT PIPE TO SLOPE DOWN TOWARDS THE VENT TERMINATION
COULD CAUSE POOR COMBUSTION AND/OR HIGH TEMPERTURES THAT MAY PRESENT A
FIRE HAZARD.
Restrictor / Vent Setup
MINIMUM VERTICAL RISE 2
ft
Simpson Duravent section
MAXIMUM VERTICAL RISE
30 ft (measured from the top of the stove)
MAXIMUM HORIZONTAL
RUN
10 ft with minimum 4
ft
vertical rise (measured
from the top of the stove)
15 ft
10 ft
0
5
30 ft
15 ft
10 ft
0 ft
5 ft
20 ft
25 ft
30 ft
15 ft
10 ft
0 ft
5 ft
20 ft
25 ft
2
ft
Allowable
venting area
15 ft
10 ft
0
5
Use restrictor in
this area up to and
including 30 ft
Use no restrictor in
this area
