Installation Guide
© 2021 United States Stove Company
23
VENTING INSTALLATION
material such as masonry block or concrete, a
7-1/2” [190 mm] diameter hole is acceptable).
The center of the hole should line up with the
center line of the horizontal rigid vent pipe.
Cut a 9-1/2” x 9-1/2” (241 x 241 mm) square hole
through combustible exterior wall (7-1/2” [190
mm] diameter hole if noncombustible). Frame
as necessary.
4. Apply a bead of non-hardening mastic around
the outside edge of vent cap. Position the vent
cap in the center of the 7-1/2” (190 mm) or 9-1/2”
(241 mm) hole on the exterior wall with the word
“UP” on the vent cap facing up. Ensure proper
clearance of 1” to combustibles is maintained.
Attach the vent cap with four wood screws
supplied.
For vinyl siding, stucco, or wood exterior use vinyl
siding standoffs between vent cap and exterior
wall. The vinyl siding standoff prevents excessive
heat from melting the vinyl siding material. Bolt
the vent cap to the standoff.
WARNING:
DO NOT RECESS VENT TERMINATION INTO
ANY WALL. THIS WILL CAUSE A FIRE HAZARD.
Apply non-hardening mastic around outside edge
of the standoff instead of the vent cap assembly.
Use wood screws provided to attach the standoff.
NOTE: Replace the wood screws with appropriate
fasteners for stucco, brick, concrete, or other types
of siding.
5. Slide the wall thimble over the vent pipe before
connecting the horizontal run to the vent cap.
6. Carefully move the stove with vent assembly
attached toward the wall and insert the vent
pipe into the horizontal termination. The pipe
overlap should be a minimum of 11/4” (32 mm).
Apply silicone to the outer pipe connection.
Fasten all vent connections with screws
provided.
7. Slide the wall thimble against the interior wall
surface and attach with screws.
Interior Wall
Surface
Decorative
Wall Thimble
Horizontal
Vent Pipe
Screw
Vent Cap
(Horizontal
Termination)
Connect Vent Cap with
Horizontal Vent Pipe
HORIZONTAL TERMINATION
CONFIGURATIONS
The gures show different congurations for
venting and horizontal termination. Each gure
includes a chart with an example of horizontal
maximum and vertical minimum dimensions taken
from the “Acceptable Venting Congurations”
chart in this manual.
NOTE: The horizontal run controls the minimum
vertical height (i.e. the longer the horizontal run,
the higher the termination will be). Follow the
“Acceptable Venting Congurations” chart in this
manual. All horizontal terminations require a 1/4” (6
mm) rise per 12” (305 mm) of horizontal run.
Vent Opening for Combustible Walls
9-1/2”
(241 mm)
9-1/2”
(241 mm)
Framing Detail
Vent Opening for Noncombustible Wall
7-1/2”
(190 mm)