Superiorfireplaces.US.com
900671-00_NC
11
VENTING INSTALLATION
Continued
Figure 19 - Firestop Spacer with Living Space Above Ceiling
Figure 20 - Firestop Spacer with Attic Space Above Ceiling
If area above is
a living space,
install firestop
below framed
hole.
If area above
is an attic or
insulated area,
install firestop
above framed
hole.
Figure 18 - Typical Offset Installation
Figure 17 - Ceiling Support Pipe 12S-8DM
Return Elbow
Return Elbow
Return
Elbow
Return
Elbow
Return
Elbow
Offset
Elbow
Offset
Elbow
Offset
Elbow
Offset
Elbow
Offset
Elbow
6' Max.(1.83 m)
6' Max.(1.83 m)
6' Max.
(1.83 m)
6' Max.(1.83 m)
6' Max.(1.83 m)
6' Max.(1.83 m)
A
B
C
Ceiling
Support Pipe
12S-8DM
4. All pipe connections between offset and return must be secured
with two screws on outer pipe only (see Figure 16). Do not pen-
etrate inner stainless.
FIRESTOP SPACERS (3600FS-8DM-1)
Firestop spacers are required at each point where chimney penetrates
a floor space. Their purpose is to establish and maintain required
clearance between chimney and combustible materials. When pipe
passes through a framed opening into a living space above, firestop
must be placed onto ceiling from below as shown in Figure 19.
They also provide complete separation from one floor space to an
-
other or attic space as required by most codes. When double wall
pipe passes through a framed opening into an attic space, firestop
must be placed into an attic floor as shown in Figure 20.
Straps
Straps
Straps
Straps
Detail A
Return Elbow
Detail B
Angle Firestop
See Detail A
See Detail B
Figure 20a - Firestop Thimble
IMPORTANT NOTICE
When penetrating a ceiling into an attic, a firestop thimble
(38FST or FST30) is required to avoid intrusion by insulation
and recommended to negotiate a joist (see Figure 20a).
Thimble
38FST
or
FST30
Firestop
