Section 3-2: Installing A Roof Mounted Termination; Section 3-2-1: Venting Layout; Roof Mounted Terminations - Montigo H38DF-PRC Installation, Operation & Maintenance Manual

H(L)38DF-PRC Indoor Panorama Gas Fireplace
Section 3-2:
INSTALLING A ROOF MOUNTED DIRECT VENT
TERMINATION (PVTK-1)
This section applies to installations where the direct vent termi-
nation will be roof mounted.
Section 3-2-1:
VENTING LAYOUT
Selection of components and details of venting lay out should
adhere to the following guidelines:
The maximum termination point is 32' above the fireplace (NOTE:
„
if the maximum termination height is used, the flame pattern
may be affected).
The Vertical termination must be a minimum 2' higher than where
„
the termination exits the roofing materials, (asphault shingles,
cedar shakes, etc). This distance should be measured from the
high side of the roof slope where the flue flashing intersects the
roofing materials. (see Figures 11 to 11c *).
Termination location must be a minimum 6' from a mechanical
„
air inlet.
Termination location must be a minimum 18" from a parapet wall.
„
A maximum of two offsets (each offset is made up of 2-90°
„
bends) may be made.
Install a firestop at any location where venting passes through
„
combustible materials and construction.
Utilize support straps, or support plates, and rings (as required)
„
to meet acceptable building practices.
Install all roof flashing and storm collars as shown.
„

Roof mounted Terminations

The following details are some possible configurations for Roof
mounted terminations. See below.
PVTK1
Termination
32' max.
Figure 11. Top vent, Roof mounted termination with no offset in
vent run.
Page 8
Installation
32' max.
Figure 11a. Top vent, Roof mounted with 1 offset (1 offset= two 90°
32' max
2' min.
SuQQort ring
SuQQort Qlate
FirestoQ
Figure 11b. Top vent, Roof mounted with 2 offsets (1 offset= two 90°
PVTK1
Termination
Obstacle
bends).
PVTK1
Termination
2' min.
Obstacle
2'
bends).
2' min.
SuQQort ring
SuQQort Qlate
FirestoQ
SuQQort straQs or
suQQort Qlate & ring
FirestoQ
SuQQort Qlate
& ring
FirestoQ
FirestoQ
Part No. XG0211 - 080510