14
•
•
•
•
•
•
•
Hanger
Straps
The concentric termination may be shortened,
but not lengthened from its original factory
supplied length.
Terminate at least 12" above grade or
above snow line.
Terminate at least 7' above a public walkway,
6' from the combustion air intake of
any appliance, and 3' from any other
building opening, gas utility meter, service
regulator etc.
Teminate at least 3' above any forced air
inlet within 10', 1' below, 1' horizontally
from or 1' above any door, window, or
gravity air inlet into any building per National
Fuel Gas Code ANSI Z223.1/NFPA 54.
Slope the horizontal vent 1/4" upwards
for every 12".
Use a condensation drain if necessary.
In the Commonwealth of Massachusetts
a carbon monoxide detector is required
for all side wall horizontally vented gas
fuel equipment. Please refer to Technical
Bulletin TB 010606 for full installation in
structions.
PVC/CPVC
Coupling
Slope vent
Upwards
1"
Minimum
Pipe diameter
No. of Elbows
3
10'
2
13'
1
16'
Insert Bird Screen
in End of Termination
**Not including the concentric termination
•
There must be a minimum of 1" clearance between
the outside wall and the air intake section of the
termination as illustrated on the left.
•
Install a securing strap to prevent movement of
the termination.
Strap
Max. Straight Vent Length**
3" PVC or CPVC