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Heat & Glo • Cerona-36, Cerona-42 • 2106-900 Rev. A • 6/06
26
C. Installing Heat Shield and Horizontal Termination Cap
NOTE: Where required, an exterior wall flashing is
available.
When penetrating a brick wall, a brick extension kit
is available for framing the brick.
Heat Shield Requirements for Horizontal Termination
For all horizontally vented appliances, a heat shield MUST
be placed one inch above the top of the vent between the
wall shield firestop and the base of the termination cap.
There are two sections of the heat shield. One section
attaches to the wall shield firestop with two screws. The
remaining section is attached to the cap in the same
manner.
If the wall thickness does not allow the required 1-1/2 inch
heat shield overlap, an extended heat shield must be used.
The extended heat shield will need to be cut to the thickness
of the wall and be attached to the wall shield firestop. The
small leg on the extended heat shield should rest on the
top of the vent (pipe section) to properly space it from the
pipe section (see Figure 8.13).
Installing the Horizontal Termination Cap
Vent termination must not be recessed in the wall. Siding
may be brought to the edge of the cap base.
Flash and seal as appropriate for siding material at outside
edges of cap.
When installing a horizontal termination cap, follow the cap
location guidelines as prescribed by current ANSI Z223.1
and CAN/CGA-B149 installation codes.
Figure 8.13 Venting through the Wall
Fire Risk
Exhaust Fumes Risk
Impaired Performance of Appliance
• Overlap pipe slip sections at least 1-1/2
inches.
• Use pilot holes for screws.
• Screws must not exceed 1 inch long.
• Pipe may separate if not properly joined.
WARNING
Burn Risk
• Local codes may require installation of
a cap shield to prevent anything or
anyone from touching the hot cap.
WARNING
WARNING
Fire Hazard
Impaired performance of appliance
• Telescoping flue section of termination cap
MUST be used when connecting pipe
section to termination cap.
• Maintain a 1-1/2 inch minimum overlap on
telescoping flue section of termination cap.
INNER VENT
INTERIOR
EXTERIOR
SHEATHING
OUTER
VENT
WALL SHIELD FIRESTOP
HEAT SHIELD OR
EXTENDED
HEAT SHIELD
REAR VENT
HEAT SHIELD
1-1/2 IN. (38MM) MIN.
OVERLAP