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20302381
23
Designer Series Direct Vent Gas Fireplace
• The maximum number of 45° elbows permitted per side
wall installation is two (2). These elbows can be installed
in either the vertical or horizontal run.
• For each 45° elbow installed in the horizontal run, the
length of the horizontal run MUST be reduced by 18"
(457 mm). This does not apply if the 45° elbows are
installed on the vertical part of the vent system.
• The maximum number of elbow degrees in a system is
270°. Figure 24
Figure 28 -
Maximum Vent Run with Elbows
FP2838
A + B = 17' Maximum
Horizontal 90° Elbow =
3' Reduction
7'6"
10'
7'
1
2
3
4
1
2
3
4
Figure 29 -
Maximum Elbow Usage
1 + 2 + 3 + 4 = 270°
FP2307
Cut a 12Z\x"H x 10Z\x" W
hole through the interior wall.
Cut a 10Z\x"H x 10Z\x"W
square hole through the exterior wall frame. Figure 25
Hole opening should be 8Z\x"
(216 mm) in diameter.
2. The center of the hole should line up with the center line
of the horizontal rigid vent pipe end. Allow 1/4" minimum
rise per foot. Figure 30
B\,
B\,
B\,
10Z\x”
(267 mm)
Min.
Fireplace Hearth
Framing Detail
8Z\x”
(216 mm)
Fireplace Hearth
FP2293
Figure 30 -
Locate vent opening on wall
10Z\x”
(267 mm) Min.
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