![](/images/new-backgrounds/1056866/5686629x1.webp)
5Chimney Assembly
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
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
Figure 5.1 Typical Chimney System - Guidelines for Chimney System Installation
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 | 15 |