Vertical Termination; Direct Vent Pipe - Quadra-Fire HUDBAY-FS Installation Manual

G. Vertical Termination

1. Direct Vent Pipe

STORM
COLLAR
FIRESTOP
PIPE
LENGTH
Figure 5.10
Step 1 - Check the installation instructions for required 1
in. (25mm) clearances (air space) to combustibles when
passing through ceilings, walls, roofs, enclosures, attic
rafters, or other nearby combustible surfaces. See Figure
5.16. Check the instructions below for maximum vertical rise
of the venting system, and any maximum horizontal offset
limitations. All offsets must fall within the set parameters of
the vent graph, Figure 5.2.
NOTE: Maximum vertical rise allowable is 40 ft. (12m) See
Figure 5.11.
NOTE: Maximum number of 45° elbows permitted for
a vertical installation is eight, provided their installation
does not decrease maximum allowable horizontal run (as
specified by vent graph, Figure 4.4).
!
Fire Risk, Explosion Risk
Maintain vent clearance to combustibles as
specified.
• Do not pack air space with insulation or
other materials.
Failure to keep insulation or other materials
away from vent pipe may cause fire.
16
VERTICAL
TERMINATION
CAP
FLASHING
SUPPORT
BOX
WARNING
Quadra-Fire • Hudson Bay Installation Manual_R26 • 01/20
Figure 5.11
Step 2 - Set the gas appliance in its desired location. Drop
a plumb bob down from the ceiling to the position of the
appliance flue exit, and mark the location where the vent
will penetrate the ceiling. Drill a small hole at this point.
Next, drop a plumb bob from the roof to the hole previously
drilled in the ceiling, and mark the spot where the vent will
penetrate the roof. Determine if ceiling joists, roof rafters,
or other framing will obstruct the venting system. You may
wish to relocate the appliance, or to offset, as shown in
Figure 5.12 to avoid cutting load bearing members. When
location is determined, drill small hole.
PLUMBER'S TAPE
CONNECTED TO
WALL STRAP
WALL
STRAP
Figure 5.12
40 ft. (12m)
MAXIMUM
TWO 45 DEGREE
ELBOWS
3-90-7003999