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VENT INSTALLATION
Foundation
Recess
Watertight Seal
Around Pipe
Figure 19 -
Snorkel Installation, Recessed Foundation
FP1966
•
Do not back fill around snorkel.
snorkel
•
A clearance of at least 4" must be
maintained between the snorkel and
the soil.
VERTICAL (THROUGH-THE-ROOF)
APPLICATIONS
This gas fireplace has been approved for,
•
Vertical installations up to 40' (12 m) in height. Up to
a 10' (3 m) horizontal vent run can be installed within
the vent system using a maximum of two 90° elbows.
Figure 20
NOTE: Horizontal and vertical sections of this vent system
require a minimum 1" clearance to combustibles at the top,
sides and bottom.
40' (12 m)
Maximum Height
12' (3.7 m)
Minimum Height
12"
(305 mm)
Min.
Figure 20 -
Support Straps for Horizontal Runs
20306746
Max.
Height 40' (12.2m)
Snorkel
Wall Screws
Sheet Metal
Screws
10' (3 m)
Maximum
Support Straps
Every 3' (914 mm)
FP1387
Max. 10' (3m)
WDV See-thru Gas Fireplace
•
Up to two 45° elbows may be used within the horizontal
run. For each 45° elbow used on the horizontal plane,
the maximum horizontal length must be reduced by 18"
(450 mm).
Example: Maximum horizontal length
No elbows = 10' (3 m)
1x45° elbows = 8.5' (2.6 m)
2x45° elbows = 7' (2.1 m)
•
A minimum of an 12' (3.6 m) vertical rise is required.
•
Two sets of 45° elbows offsets may be used within the
vertical sections. From 0 to a maximum of 8' (2.5 m)
of vent pipe can be used between elbows. Figure 21
•
The maximum angular variation allowed in the system
is 270°. Figure 21
Example:
Total Angular Variation
1
2
3
4
12" Min.
Figure 21 -
Maximum Elbow Usage
Elbow 1
=
90°
Elbow 2
=
45°
Elbow 3
=
45°
Elbow 4
=
90°
=
270°
1
FP1179
2
3
4
17
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