Page 7
September 1, 2008
R
7007-161H
2700-I WOOD INSERT (ACT)
Floor
Ceiling
Caulk
Floor
(second Story)
Non-Combustible
Firestopping
Material
Minimum 1 inch (25mm)
clearance from exterior
chimney to sheathing
Firestopping
2 inch
(51mm
)
CHIMNEY REqUIREMENTS
Non-combustible
fire stopping material
Minimum 2 inch (51mm) clearance
from combustible material
and insulation
ceilin
g
At least 2 ft
(61cm)
At least ft
(91cm)
CHIMNEY HEIGHT
10 ft
(05cm)
CHIMNEY TOp VIEW
FLUE
Foundation
1/2" (12.7mm) airspace
5/8" (16mm)
Fireclay Flue
Liner
Chimney Wall
4" (102mm)
Nominal
Figure 7.1
OVALIZING ROUND STAINLESS STEEL
LINERS
Ovalizing round stainless steel liners to accommodate the
liner passing through the damper region of a fireplace is an
allowable and acceptable practice.
Ensure that the ovalization is minimized to the extent
required to fit through the damper.
Figure 7.3 - 2-10-3 Rule
Figure 7.2
Figure 7.4
WARNING
ONLY use connector:
• Within the room, between appliance and ceiling or wall.
Connector shall NOT pass through:
• Attic or roof space
• Closet or similar concealed space
• Floor or ceiling
Maintain minimum clearances to combustibles
Fire Risk.
Follow Chimney Connector Manufacturer’s
Instructions for Proper Installation.
WARNING
• ALWAYS maintain specified clearances around venting and
spacers.
• Install spacers as specified.
Failure to keep insulation or other material away from vent
pipe may cause fire.
Fire Risk.
Do NOT pack insulation or other combustibles
between spacers.