DuraVent PelletVent Pro - Manual (Page 5)

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lubricate the new O-ring gasket. Replacement
gaskets and silicone lubricants are available to
order from the PVP catalog or our website at
duravent.com.
SEALANTS
PelletVent Pro does not require additional
sealant to be used at pipe joints, but in certain
circumstances sealant may be used if desired.
Seal the inner liner overlap at the male end of
pipe for best results (Figure 6)
Note: 500ºF RTV silicone sealant is required
on the following component connections:
• Connecting PelletVent Pro biofuel
(with gaskets) to PelletVent
Pro (without gasket) or another
PelletVent or CornVent.
• Connecting Appliance Adapter or any
other part when connecting to the
appliance outlet
• When using the Adjustable Length
section.
FUEL SELECTION, BEST
PRACTICES
PelletVent Pro is a multi-fuel venting
system approved for burning wood
pellets, corn, and other approved biofuels,
plus, oil and kerosene. Be sure to follow
the recommendations of the appliance
manufacturer for the burning of corn or other
types of biofuel. A major reason for accelerated
vent corrosion from burning corn is due to
acidic condensate forming in the system.
The moisture content of corn contributes
significantly to condensate in the vent. The
lower the moisture content of the corn, the less
condensate you are likely to have in the vent.
While corn with a moisture content of 15%
may be allowed in the appliance, using a fuel
with lower moisture content will help reduce
condensate formation.
Vent Runs: Condensate is more likely to
form in longer vents because the exhaust
temperature cools further away from the
appliance. If the exhaust cools to a certain
point, moisture in the exhaust condenses
in the vent, which can lead to accelerated
vent corrosion. Keep the vent for corn-
burning appliances short wherever possible
to maintain hot flue gas temperatures and
keep moisture suspended in the exhaust. If a
longer horizontal vent or taller vertical vent is
needed, it is recommended that the vent run
inside the building envelope or inside a chase
enclosure to minimize the vent’s exposure to
cold temperatures. When terminating a corn
burning system horizontally a stainless steel
outer Pipe Section and the Round Horizontal
Termination Cap are required. Be sure to
follow all other applicable building codes
and maintain all minimum clearances in
enclosures.
Appliance Operation: Regardless of the fuel
you choose always operate your appliance in
accordance with the appliance manufacturer’s
recommendations. If you burn corn, operating
the appliance at its lowest setting has a greater
chance for condensate to form in the vent due
to the low exhaust temperature. In order to
help reduce condensate from forming inside
the vent system, operate the appliance at
higher temperatures when colder weather is
encountered. Higher operation settings provide
for warmer flue temperatures, which help to
keep moisture suspended in the flue gases.
Inspection and Maintenance: When burning
corn, be sure to inspect the appliance and
vent often to determine if there has been any
corrosion or damage to the system. Be sure
to keep the venting system clean, including
the tee cap (if applicable). The ash that results
from burning corn can trap condensate in
the tee cap and inside the vent, hastening