STEP 6. FRAMING CEILING AND ROOF OPENING
SEE FIGURE 15 FOR INSTRUCTIONS IF THE FLUE-PIPE
WILL BE OFFSET BELOW THE CEILING LEVEL.
If you are not using elbows in this installation, frame the
ceiling and roof openings directly above one another in the
locations you chose in the Planning Ahead section of this
manual. The flue should go straight up to the chimney
termination.
STEP
7
.
INSTALLING FIRESTOP THIMBLE
A firestop thimble is required in all manufactured (mobile)
home installations. The TEMCO Model UFT8-1 universal
firestop thimble may be used for flat and vaulted home
ceilings (0
0
to 30
0
).
(NOTE: TE-1 thimble extensions are
not required if the chimney passes through a vented
attic space and the total chimney height from the floor
to the flue outlet is 13’-6” minimum.)
The firestop thimble is designed to eliminate the need to cut
trusses when installing the 8” chimney between standard
roof trusses fabricated on 16” centers. Locate and mark
the center of the ceiling at the ceiling level. For flat ceilings,
cut a 14 - 1/2” square in the ceiling. For vaulted ceilings, a
larger cutout is needed to provide sufficinet clearance. The
width of the cutout will still be 14 - 1/2”, but the length
should be increased in order to maintain proper clearances
from the chimney components to combustibles.
NOTE:
Sealing of the space between the firestop base plate and
firestop thimble is not required. Position the firestop thimble
with the flanges up and with the cylindrical portion extending
up into the hole. Nail the firestop thimble securely to the
framing. The firestop thimble has a 10” sleeve that
functions as a insulation/heat shield. A firestop thimble
extension model TE-1 is required if the thickness of the
ceiling is such that the heat shield on the thimble does not
extend into the roof flashing. The thimble extension slips
into the firestop thimble and is fastened to the thimble with
sheet metal screws. A model 8206F roof flashing, storm
collar, and the TEMCO 8203D termination cap are required
to complete the installation. (NOTE: When clearances are
a concern for home transportation to site, the last piece of
vent pipe and termination cap may be installed at
destination.)
INSTALLING THE CHIMNEY
Double Wall Chimney pipe has two sections: the inner and
the outer sections. It is very important that both sections be
installed for each length of chimney used in the system.
CAUTION: THE OUTER PIPE SECTION HAS A WIRE
SPACER USED TO CENTER THE INNER PIPE. THIS IS
REQUIRED TO MAINTAIN CLEARANCES TO
COMBUSTIBLE CONSTRUCTION. DO NOT REMOVE!
STEP 8.
Insert the inner (8") pipe with the male end pointing DOWN
into the inner collar. The inner flue section fits inside the
inner collar. Push the pipe until it bottoms and the snap
locks engage. Check each joint to ensure that the sections
are securely locked together.
STEP 9.
Slip the outer (12") pipe with the male end UP over the
other pipe and over the outer collar. The outer flue section
fits on the outside of the outer flue collar. Push the pipe until
it bottoms and the snap locks engage. Screws may be used
only in the outer pipe for additional support if desired.
STEP 10.
Continue this process of adding chimney pipe sections on
top of each other until the pipe penetrates the roof opening
enough to allow you to install the flashing and storm collar.
Chimney sections must be supported by either guy wires or
3/4" conduit flattened on the ends when the chimney
extends 6' or more above the roof. The chimney may be
extended to a maximum of 12' above the roof. A flue
support must be used when the system is 35' or higher.
Figure 8
Figure 9
8
CAUTION: The structural integrity of the floor, wall,
ceiling, roof trusses and any other structural members
minimum system height
TFC/TLC36-3MB: 11’6”
TLC42-4MB: 12’6”
minimum system height
TFC/TLC36-3MB: 11’6”
TLC42-4MB: 12’6”
Figure 10
Figure 11
OPTIONAL
OPTIONAL
OPTIONAL
MANUFACTURED HOME INSTALLATIONS
