Table of Contents
Advertisement
NOTICE: All pipe, fittings, solvent cement, primers and procedures must conform to American
National Standards Institute and American Society for Testing and Materials (ANSI/ASTM) standards.
Vent Pipe
From
Water Heater
Pipe Coupling
Insert 1/2" Mesh Protective
Screen Inside Terminal Elbow
Min. 12" Above Roof
Min. 12" Above
Anticipated Snow
Level.
Vent Terminal
Max. 24" Above Roof
(Without Additional
Support)
Horizontal Vent Installation
Once the vent terminal location has been determined, make a
2' x 2' Sheet
hole through the exterior wall to accommodate the vent pipe.
Metal Shieldon
Vent pipe must exit exterior wall horizontally only.
Brick or Masonry
Walls
Insert a small length of vent pipe through the wall and connect
the coupling as shown to the left.
Vent Terminal
with
/
" Mesh
1
2
Place the 1/2" mesh metal screen inside the terminal fitting
Protective Screen
and connect it as shown to the vent pipe on the exterior of the
Inside
building.
Complete the rest of the vent pipe installation to the water
heater's vent connector fitting on the blower outlet.
If necessary support horizontal run as previously mentioned.
Outside of
Building Wall
Vertical Vent Termination Location
The location of the vent terminal depends on the following
minimum clearances and considerations (see illustration):
Short Piece of Vent Pipe
Vent Pipe
Through Roof
Elbow
Vertical Vent Installation
Once the vent terminal location has been
determined, make a hole through the roof
and interior ceiling to accommodate the
vent pipe.
Complete the vent pipe installation to the
water heater's vent connector fitting on the
blower outlet.
Support vertical or horizontal lengths as
previously mentioned.
Install adequate flashing where the vent
pipe passes through the roof.
Determine the vent terminal height and cut
Minimum twelve (12) inches above roof.
Minimum twelve (12) inches above anticipated snow level.
Maximum twenty-four (24) inches above roof level without
additional support for vent.
Four (4) feet from any gable, dormer or other roof structure
with building interior access (i.e., vent, window, etc.).
Ten (10) feet from any forced air inlet to the building. Any
fresh or make-up air inlet such as a dryer or furnace area is
considered to be a forced air inlet.
vent pipe accordingly. Refer to the above
section for proper vent terminal height.
Connect vent elbow onto vertical pipe
through roof.
Connect short piece of vent pipe
(approximately 3" long) to elbow, then
insert 1/2" mesh metal screen into terminal
elbow and join it to the short piece of vent
pipe.
15 15
Hide quick links:
Advertisement
Table of Contents
