Installation, For qualified installers only), Installation example: class a chimney retrofit – Avalon Stoves Astoria PS User Manual
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Installation
(For Qualified Installers Only)
© Travis Industries
4080725
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Installation Example: Class A Chimney Retrofit
Vent
Clearance*
Type "L" Vent
6” Minimum
Floor Protection
2”
Minimum
9” Minimum
Outside
Air
(optional)
Floor Protection
Outside air may be drawn from
a ventilated crawl space.
2” Min.
Vent
Clearance*
Class A Chimney Ceiling Support
Roof Flashing
“L” Vent to Class A Chimney Adapter
Class A Chimney
“L” Vent
Storm Collar
Class A Chimney must
maintain clearances outlined
in the chimney’s installation
instructions (usually 2”).
“Tee”
Seal each vent
section (including
adapters, elbows,
etc...) by injecting a
liberal amount of
500° F. RTV
silicone into the gap
between sections.
500
° F. RTV
Silicone
*
Install vent at clearance specified by the vent manufacturer.