Chimney Assembly - Heatilator ST42A Owner's Manual

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Chimney Assembly

Figure 5.1 Typical Chimney System - Guidelines for Chimney System Installation
Chimney must extend
beyond combustible
roof structure
Maintain minimum
height of chimney
above roof
Install roof flashing
according to minimum
requirements
Offsets/returns
may not exceed
30° from vertical
Lock chimney
sections together
firmly to resist
movement
NOTE:
• Chimney performance may vary.
• Trees, buildings, roof lines and wind conditions affect
performance.
• Chimney height may need adjustment if smoking or
overdraft occurs.
Heatilator • ST42A • 35038 Rev G • 02/05
Termination Cap
Additional
support for
tall chimneys
Storm Collar
Maintain minimum
clearances to
combustibles as
specified
Support straps for offsets/
returns must be secured
to adequate framing
Firestop spacers
are required where
chimney passes
through ceiling or
floor
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