R
5100-I WOOD INSERT
CHIMNEY REQUIREMENTS
A chimney must be the required height above the roof or other obstruction for safety and for proper draft oper- ation. The requirement is that the chimney must be at least 3 feet (91cm) higher than the highest point where it passes through the roof, and at least 2 feet (61cm) higher than the highest part of the roof or structure that is within10 feet (305cm) of the chimney, measured hori- zontally. Refer to Figure 8C.
OVALIZING ROUND STAINLESS STEEL
LINERS
Ovalizing round stainless steel liners to acommodate the liner passing through the damper region of a fire- place is an allowable and acceptable practice.
Ensure that the ovalization is minimized to the extent required to fit through the damper.
Figure 8A | Firestopping |
Firestopping
Material
Floor
2 inch |
Figure 8C
10 ft
(305cm)
At least 2 ft
(51mm) |
At least 3 ft
(91cm)
(61cm)
Floor
Ceiling
Caulk
CHIMNEY HEIGHT
(second Story)
Figure 8B
Minimum 1 inch (25mm) clearance from exterior chimney to sheathing
Figure 8D |
Minimum 2 inch (51mm) clearance from combustible material
and insulation
ceiling
CHIMNEY TOP VIEW |
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| 5/8" (16mm) | |
1/2" (12.7mm) airspace | |||||||||||
Fireclay Flue | |||||||||||
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| Liner | |
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| FLUE |
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| Chimney Wall | ||
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| 4" (102mm) | |
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| Nominal | |
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| Foundation |
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Page 8 | January 30, 2004 |