Use and Care Guide

Encapsulated
o-ring provides a
secondary seal
Primary metal-to-
metal connection
seals the joint
PelletVent Pro for biofuels (patent pending) features a
metal-to-metal seal as the primary protection against
leakage. A high temperature silicone o-ring, completely
encapsulated between the inner and outer wall, provides
a secondary seal.
Scientically proven materials and
unequalled engineering make
Pellet-Vent Pro for biofuels not only
the best choice, or the safest choice,
but the only choice for venting
wood, corn, and other biofuels.
Silicone seals fail at temperatures
exceeding
600°F
. Other manufacturers
employ only a silicone gasket in the female
end of the connection as their only leakage
protection. When these devitrify or fail,
there is no leakage protection, allowing
combustion gases to enter the home.
In the event of a pellet chimney
re, Simpson Dura-Vent’s primary
metal-to-metal seal provides
continuous leakage protection.
Additionally, the encapsulated
o-ring, although devitried, stays
in place and continues to function
as a seal.
PelletVent Pr
94
Simpson Dura-Vent
Engineered Excellence