78D0011
17
WDV Series Gas Fireplace
This gas replace has been approved for,
• Vertical installations up to 40' (1 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
Horizontal and vertical sections of this vent system
require a minimum 1" clearance to combustibles at the top,
sides and bottom.
Example: Elbow 1 = 90°
Elbow = 45°
Elbow 3 = 45°
Elbow 4 = 90°
Total Angular Variation = 70°
1" Min.
Figure 21 -
Maximum Elbow Usage
FP1179
• 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’ (.6 m)
x45° elbows = 7’ (.1 m)
• A minimum of an 1' (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' (.5 m)
of vent pipe can be used between elbows. Figure 21
• The maximum angular variation allowed in the system
is 70°. Figure 21
40' Maximum Height
1' Minimum Height
10'
Maximum
Support Straps
Every 3'
1" Min.
FP1183
Figure 20 -
Support Straps for Horizontal Runs
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