Page 9
P/N XG0206
M40DV-CR/CL Corner Gas Fireplace
Installation
Vertical Vent Installations
Vertical Installations with a rise greater than 12' can be reduced
from 5/8 to 4/7 venting.
•
minimum 2' (two feet) above the highest point where
vent passes through the roof.
•
minimum 6' (six feet) from a mechanical air inlet
•
minimum 18" (1 1/2 feet) from a parapet wall.
Maximum vent height is 30 feet above fireplace.
Note: Flame characteristics will change if the maximum vent
height is used.
Minimum
clearance to combustible construction around the
vent pipe is 1"
on all sides must be maintained, except on hori-
zontal venting where the
top
of the pipe must have a clearance of
at least 2".
2. Offset Vertical Installations
A maximum of two offsets
(each offset has two 90° bends)
may be
made if the length of the offsets does not exceed 25% of the vertical
vent height, when measured center to center of piping.
Example:
Typical vent installation.
30' vertical vent
2 - 2' offsets required
25% of 30' = 7-1/2' max. offset allowed
This venting configuration meets requirements.
Figure 10b. Vertical venting with 2 offsets (1 offset= two
90° bends).
* If reducing to 4"/7" venting see figure 19.
Figure 10a. Vertical venting with 1 offset (1 offset= two
90° bends).
* If reducing to 4"/7" venting see figure 19.
1. Straight Vertical Installation
Figure 9. Straight, vertical venting. When the vent run is not reduced
use a PEL-90F/F elbow, which is connected directly to the
fireplace flue collar. In this case, the PXT-10 adaptor is not
needed. * If reducing to 4"/7" venting see figure 19.
Rear Vent
