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© 2022 United States Stove Company
MAXIMUM VENTING DISTANCE
Installation MUST include at least 3-feet of vertical
pipe outside the home. This will create some natural
draft to reduce the possibility of smoke or odor
during appliance shutdown and keep exhaust from
causing a nuisance or hazard by exposing people
or shrubs to high temperatures. The maximum
recommend vertical venting height is 12-feet for
3-inch type “PL” vent. Total length of horizontal
vent must not exceed 4-feet. This could cause back
pressure. Use no more than 180 degrees of elbows
(two 90-degree elbows, or two 45-degree and one
90-degree elbow, etc.) to maintain adequate draft.
IMPORTANCE OF PROPER DRAFT
Draft is the force which moves air from the
appliance up through the chimney. The amount of
draft in your chimney depends on the length of the
chimney, local geography, nearby obstructions and
other factors. Too much draft may cause excessive
temperatures in the appliance. Inadequate
draft may cause backpuffing into the room and
‘plugging’ of the chimney. Inadequate draft will
cause the appliance to leak smoke into the room
through appliance and chimney connector joints.
An uncontrollable burn or excessive temperature
indicates excessive draft. Take into account the
chimney’s location to ensure it is not too close
to neighbours or in a valley which may cause
unhealthy or nuisance conditions.
PELLET VENT TYPE
A certified 3-inch or 4-inch type “PL” pellet vent
exhaust system must be used for installation and
attached to the pipe connector provided on the
back of the stove (use a 3-inch to 4-inch adapter
for 4-inch pipe). The connection at the back of
the stove must be sealed using Hi-Temp RTV. Use
a 4-inch vent if the vent height is over 12-feet or if
the installation is over 2,500 feet above sea level.
We recommend the use of Simpson Dura-Vent® or
Metal-Fab® pipe (if you use other pipes, consult your
local building codes and/or building inspectors). Do
not use Type-B Gas Vent pipe or galvanized pipe
with this unit. The pellet vent pipe is designed to
disassemble for cleaning and should be checked
several times during the burning season. The pellet
vent pipe is not furnished with the unit and must
be purchased separately.
PELLET VENT INSTALLATION
The installation must include a clean-out tee to
enable collection of fly ash and to permit periodic
cleaning of the exhaust system. 90-degree elbows
accumulate fly ash and soot thereby reducing
exhaust flow and performance of the stove. Each
elbow or tee reduces draft potential by 30% to 50%.
All joints in the vent system must be fastened by
at least 3 screws, and all joints must be sealed with
Hi-Temp RTV silicone sealant to be airtight. The
area where the vent pipe penetrates to the exterior
of the home must be sealed with silicone or other
means to maintain the vapor barrier between the
exterior and the interior of the home. Vent surfaces
can get hot enough to cause burns if touched by
children. Noncombustible shielding or guards may
be required.
PELLET VENT TERMINATION
Do not terminate the vent in an enclosed or semi-
enclosed area, such as; carport, garage, attic,
crawl space, under a sun deck or porch, narrow
walkway, or any other location that can build up
a concentration of fumes. Termination in one of
these areas can also lead to unpredictable pressure
situations with the appliance, and could result
in improper performance and/or malfunction.
The termination must exhaust above the outside
air inlet elevation. The termination must not be
located where it will become plugged by snow or
other materials. Do not terminate the venting into
an existing steel or masonry chimney.
VENT TERMINATION CLEARANCES
INSTALLATION
