8
Maximum
Horizontal Run
10 Feet
Fig. # 6
*
Total horizontal run must not exceed 10 feet.
Use a maximum of one 90° elbow or two 45°
elbows. If more than 1 elbow is required,
reduce horizontal run by 2 feet for each
additional 90° elbow and 1 foot for each
additional 45° elbow.
*
Maximum
Vertical Rise
40 Feet
WALL TERMINATION VENTING
A minimum vertical rise of 2 feet is required for any wall
termination (see Fig. #5).
For horizontal runs greater than 1 foot, increase vertical rise
equally. At 4 feet of rise, the horizontal run may increase up
to and must not exceed 10 feet. A maximum of two 90° or 45°
elbows may be used. If more than 2 elbows are used, reduce
horizontal run by 2 feet for each additional set of elbows.
For optimum performance and flame appearance, keep the
vent length to a minimum. Connections between each vent
component must be tightly joined and sealed. A horizontal run
of vent must have a 1/4 inch rise for every 1 foot of run towards
the termination.
Maximum
Vent Length
40 Feet
Minimum Rise
4 Feet
*
