Heat & Glo • PALOMA-BZ-MOD, PALOMA-GR-MOD, PALOMA-GY-MOD • 2189-900 R14 • 11/14
16
40 ft. (12 m)
MAXIMUM
Figure 5.10
VERTICAL TERMINATION CAP
STORM COLLAR
FLASHING
FIRESTOP
PIPE LENGTH
SUPPORT BOX
Figure 5.11
1.
Check the installation instructions for required 1 in.
(25
mm) clearances (air space) to combustibles when
passing through ceilings, walls, roofs, enclosures, attic
rafters, or other nearby combustible surfaces.
Check
the instructions 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
)
located on page 12.
PLUMBER'S TAPE
CONNECTED TO
WALL STRAP
WALL
STRAP
TWO 45º
ELBOWS
2. S
et 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.
Figure 5.12
G. Vertical Termination
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.
Note:
Maximum vertical rise allowable is 40 ft. (10.7 m), Figure
5.11. Maximum number of 45º elbows permitted for a vertical
installation is eight, provided their installation does not decrease
maximum allowable horizontal run (as specified by vent graph,
on page 12).
WARNING
!
