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6. Continue to add pipe sections until height
of vent cap meets the minimum building
code requirements described in Figure
7 on page 7.
Note: You must increase
vent height for steep roof pitches. Nearby
trees, adjoining rooflines, steep pitched
roofs and other similar factors may cause
poor draft or down-drafting in high winds.
Increasing vent height may solve this
problem.
7. Twist-lock vent cap onto last section of
vent pipe.
Note: If vent pipe passes through any occu-
pied areas above first floor, including storage
spaces and closets, you must enclose pipe.
You may frame and sheetrock enclosure with
standard construction material. Make sure
and meet minimum allowable clearances
to combustibles. Do not fill any required air
spaces with insulation.
Vertical Termination Configurations
Figures 21 through 24 show four different
configurations for vertical termination.
VENTING INSTallaTION
Continued
Figure 21 - Vertical Venting
Configuration Using Two 90° Elbows
with Two Horizontal Runs (Vertical
Round High Wind Termination Shown)
Venting with Two 90° Elbows
Horizontal (H
1
) +
Vertical (V)
Horizontal (H
2
)
5' min.
2' max.
6' min.
4' max.
7' min.
6' max.
8' min.
8' max.
20' max.
8' max.
Note: Install
restrictor into
inner collar of
fireplace as
shown.
45° Elbow
Figure 22 - Vertical Venting Configuration
Using One 90° Elbow (Vertical Round
High Wind Termination Shown)
Venting with Two 90° Elbows
vertical (v
1
) Horizontal (H)
5' min.
6' max.
6' min.
12' max.
7' min.
18' max.
8' min.
20' max.
Note:
Vertical (V
1
) + Vertical (V
2
) = 40' max.
Figure 23 - Vertical Venting Configuration
Using Two 90° Elbows (Vertical Round
High Wind Termination Shown)
Venting with One 90° Elbow
Vertical (V) Horizontal (H)
5' min.
2' max.
6' min.
4' max.
7' min.
6' max.
8' min.
8' max.
20' max.
8' max.
Note: Install restrictor
into inner collar of
fireplace as shown.
45° Elbow
Note: Install
restrictor into inner
collar of fireplace
as shown.
45° Elbow
