Installation and Maintenance Manual

Installation: Piping
20 GKND-SVX01B-EN
10. The top of a VERTICALLY VENTED exhaust system
must extend at least three feet (1 m) above the roof
surface that it passes through.
The point of termination
for a HORIZONTALLY VENTED exhaust system must be
at least 12 inches (305 mm) from the exterior of the
w
all that it passes through. In addition, the termination
point must be at least three feet (1 m) above grade or
above the snow line, more than six feet (2 m) from the
co
mbustion air inlet of another appliance, more than
three feet (1 m) from any building opening, and more
than four feet (1
.3 m) from, and not directly above, any
gas meter or service regulator (refer to Figure 13, p. 21
and Figure 14, p. 21).