01/04
31818 Rev J
17
ODYSSEY SERIES FIREPLACE WITH GAS LOG SET
Æ
Figure 14
Installing an Attic Insulation Shield
8. Double-check the Chimney Assembly
Continue assembling the chimney sections up through
the firestop spacers as needed. While doing so, be aware
of the height and unsupported chimney length limitations
that are given on page 12 under Chimney Requirements.
Check each section by pulling up slightly from the top to
ensure proper engagement before installing the
succeeding sections. If they have been connected
correctly, they will not disengage when tested.
9. Secure the Chimney System
When offsets and returns are joined to straight pipe
sections, they must be locked into position with the
screws provided, using the predrilled holes. To prevent
gravity from pulling the chimney sections apart the returns
and the chimney stabilizers have straps for securing
these parts to joists or rafters. See Figure 15.
Note:
Be sure to provide support for the pipe during
construction and check to be sure inadvertent loading
has not dislodged the chimney section from the fire-
place or at any chimney joint.
Figure 15
Offset/Return with Stabilizer
10. Mark the Exit Point of the Roof
Locate the point where the chimney will exit the roof by
plumbing down to the center of the chimney. Drive a nail
up through the roof to mark the center. See Figure 16.
11. Cut out the Hole in the Roof
Measure to either side of the nail and mark the 14-1/2 x
14-1/2 opening required. This is measured on the
horizontal; actual length may be larger depending on the
pitch of the roof. Cut out and frame the opening. See
Chapter 25 of the Uniform Building Code
for roof framing
details.
Be sure to maintain a 2 minimum air space
between the chimney section and the roof.
Figure 16
Ceiling and Attic Construction
12. Assemble the Chimney Sections
Continue to add chimney sections through the roof
opening, maintaining at least a 2 air space.
WARNING!
When chimney sections exceeding six feet in length
are installed between an offset and return, structural
support must be provided to reduce off-center loading
and prevent chimney sections from separating at the
chimney joints.
WARNING! RISK OF FIRE.
Do not fill the space between the chimney sec-
tion and the insulation shield with insulation.