Hearth and Home Technologies GATEWAY - Manual (Page 24)

Heat & Glo • Gateway • 288-900 Rev. W • 10/08 24
A. Assembly of Vent Sections
This appliance requires PV-Flex venting for any run that
terminates horizontally. Four (4) in. Duravent B-type vent
is approved for vertical termination. When using 4 in.
B-type vent pipe, no horizontal or offset run are allowed.
One 90º elbow attached to the starting collar of the unit is
acceptable.
Fire Risk
Exhaust Fumes Risk
Impaired Performance of Appliance
• Assemble pipe sections per B-vent manufac-
turer’s instructions.
• Use support tabs for screws.
• Screws must not exceed one inch long and
must not penetrate inner lining.
• Pipe may separate if not properly joined.
B. Attaching Vent to Firebox
8 8
Installing Vent Pipe
WARNING
Figure 8.1
PV-FLEX venting: Use starter collar included with the PV-
FLEX10 and PV-FLEX20.
EXHAUST
COLLAR
FLEX CONNECT
STARTER
PV FLEX
1/2 in. bead of Hi temp silicone caulk
inside pipe and outside connector
Fire Risk.
Explosion Risk.
Combustion Fume Risk.
Use vent run supports per vent manufacturer’s
installation instructions.
Connect vent sections per vent manufacturer’s
installation instructions.
• Maintain all clearances to combustibles.
• Maintain specifi ed slope (if required).
Improper support may allow vent to sag or
separate.
C. Securing Vent Sections (B-Type Vent)
Follow B-Vent manufacturer’s instructions to secure B-vent
pieces together properly.
WARNING
D. Securing Vent Sections (PV-FLEX)
• For vent runs that require multiple sections of PV-FLEX,
a PVFLEX-CONNECT fl ex connector must be installed at
each point where sections of PV-FLEX are connected.
Note: Due to the positive pressure within the Gateway venting
system, when using PV-FLEX use a 1/2 inch bead of silicone
caulk on ALL pipe ends and connectors throughout the vent
run to ensure a completely sealed system.
Figure 8.2 PVFLEX-CONNECT
B-Type venting: Follow vent pipe manufacturer’s instructions.