United States Stove Company 5500 Owner's Manual page 9

VENTING REQUIREMENTS
Install vent at clearances specifi ed by the vent manufacturer.
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Do not connect the pellet vent to a vent serving any other appliance or stove.

Do not install a fl ue damper in the exhaust venting system of this unit.
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The following installation guidelines must be followed to ensure conformity with both the safety listing of this stove and
to local building codes. Do not use makeshift methods or compromise in the installation.
IMPORTANT! This unit is equipped with a negative draft system that pulls air through the burn pot and
pushes the exhaust out of the dwelling. If this unit is connected to a fl ue system other than the way explained
in this manual, it will not function properly.
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 backpuffi ng 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 insure it is not too close to neighbors or in a valley which may cause unhealthy
or nuisance conditions.
PELLET VENT TYPE
A UL listed 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). Connection at back of
stove must be sealed using Hi-Temp RTV. Use 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
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. 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 fl y ash and to permit periodic cleaning of the exhaust
system. 90-degree elbows accumulate fl y ash and soot thereby reducing exhaust fl ow 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.
Installation
or Metal-Fab pipe (if you use other pipe, consult your local building
® ®
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