Hearth and Home Technologies CR36D User Manual
Page 25

25
Chimney must extend 
beyond combustible 
roof structure 
Maintain minimum 
height of chimney 
above roof 
Additional
support for 
tall chimneys 
Install roof flashing 
according to minimum 
requirements
Maintain minimum
clearances to 
combustibles as
specified
Offsets/returns 
may not exceed 
30° from vertical 
Lock chimney 
sections together 
firmly to resist 
movement
Ceiling firestops 
are required where 
chimney passes
through ceiling or 
floor
Support straps for returns 
must be secured to 
adequate framing
Termination Cap
Storm Collar
Offsets and returns must 
be secured with the screws
provided (outer pipe only)
Figure 8.1 Typical Chimney System - Guidelines for Chimney System Installation
8
8
Chimney Assembly
NOTICE: Chimney performance may vary.
• Trees, buildings, roof lines and wind conditions affect 
performance.
• Chimney height may need adjustment if smoking or
overdraft occurs.
Heatilator • CL36D, CR36D • 12538 • Rev T • 09/08
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