Figure 10.
Straight Vertical, Top or Rear Vent, Roof
mounted
power vent.
Figure 10a.
Multi-Elbow, Top or Rear Vent, Roof mounted
power vent.
Note:
Images are shown without screens for clarity purposes�
However, your fireplace should not be operated without proper
installation of screens�
R720 & R820 Power Vent Indoor Gas Fireplace
Page 17
XG0772 - 150105�4
Installation
This section applies to installations where the most efficient vent run
is through the roof� Refer to
Appendix A
- Power Vent locations
,
to ensure the planned Power vent location is acceptable� Refer to
the table below for vent run requirements�
Section 3-2: Installing a Roof Mounted Vent System
Vent Configuration
Refer to Figure
Maximum Vent Run
(Hori Vertical)
Maximum Elbows†
Straight Vertical Top or Rear Vent
Figure 10
100 Feet
Six 90
°
or
equivalent
†
Multi-Elbow Top or Rear Vent
Figure 10a
Multi-Elbow with 6' downward vent
run Top or Rear Vent
Figure 10b
70 Feet**
†
One 90° elbow is equal to two 45° elbows�
** For every additional 1 foot downward vent run subtract 10 feet from the maximum vent run�
