C. Installing Heat Shield and Horizontal Termination Cap
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
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
WARNING
Fire Risk
Exhaust Fumes Risk
Impaired Performance of Appliance
•Overlap pipe slip sections at least
•Use pilot holes for screws.
•Screws must not exceed 1 inch long.
•Pipe may separate if not properly joined.
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
The extended heat shield will need to be cut to the thick- ness 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 8.12).
WARNING
Burn Risk
• Local codes may require installation of a cap shield to prevent anything or anyone from touching the hot cap.
HEAT SHIELD OR | REAR VENT |
EXTENDED | HEAT SHIELD |
HEAT SHIELD | |
| OVERLAP |
WALL SHIELD FIRESTOP |
|
INNER VENT |
|
EXTERIOR |
|
SHEATHING |
|
INTERIOR |
|
OUTER VENT |
|
Figure 8.12 Venting through the Wall |
|
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 & Glo • Crescent II • | 23 |
