Installation guide

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C38-DV Gas Fireplace
Part No. XG0118B
Storm collar
Support ring
MEXT
Solid Section
Roof flashing
30' max.
* Minimum 1" clearance to all combustibles
Support plate
Firestop
Firestop
2' min.
MXT-10
Adaptor
MEXT
Flue
Collar
2' min.
Storm collar
Support ring
Roof flashing
30' max.
* Minimum 1" clearance to all combustibles
Support plate
Firestop
Installation
B. Vertical (Through-The-Roof) Installations
5/8" with option for 4/7"
n Vertical rise >12' can be reduced
n Vertical Terminations must be installed:
• minimum 2' (two feet) above the highest point where
vent passes through the roof.
• minimum 6' (six feet) from a mechanical air inlet
• minimum 3' (three feet) from a parapet wall.
n Maximum vent height is 30 feet above fireplace.
Note: Flame characteristics will change if the maximum vent height
is used.
n Minimum clearances 1" from vent to all combustible materials must
be maintained.
Figure 13.a Straight, vertical venting using required adaptor.
n A maximum of two offsets with 90° bends may be made and shall not
exceed total length of 25% of the vertical vent height, when measured
center to center of piping.
Example: Typical vent installation.
20' vertical vent
2 - 2' offsets required
25% of 20' = 5' max. offset allowed
This venting configuration meets requirements.
Figure 14a. Vertical venting with 1 offset.
30' max.
30' max.
Rigid Section
A
A.Male/Female
B.Female/Female
C.Male Flue Collar
B
C
Figure 13b. Reducing Vertical Vent from 5/8" to 4/7".
Vent Restrictors
When venting vertically, Vent Restrictors may be added to enhance the
burn characteristics of the fireplace.
Part Size 5"/8" Venting 4"/7" Venting
A - Termination n/a PVTK-1 MVTK-1
B - Flex sections 12" length PFL-1 MFL-1
24" length PFL-2 MFL-2
36" length PFL-3 MFL-3
48" length PFL-4 MFL-4
C - Solid sections 12" length PEXT-1 MEXT-1
24" length PEXT-2 MEXT-2
36" length PEXT-3 MEXT-3
48" length PEXT-4 MEXT-4
D - Support Ring
& Plate PSPXT-8 MSPXT-7
E - Firestop PS-8 FS-7
F - Roof Flashing
(1/12-7/12 pt.) PRF-7 MRF-7
(7/12-12/12 pt.) PRF-12 MRF-12
G - Adaptor/
(5"/8" to 4"/7") PVA5487
Vent Reducer