Superiorfireplaces.US.com
900671-00_NC
8
VENTING INSTALLATION
Continued
There are three vent kits available which have been specially de-
signed for common installations in manufactured (mobile) homes:
MW8K (8' vent kit), MW9K (9' vent kit) and MW8K-HT (8' HT vent
kit). Contents of these kits are listed under Accessories on
page 19
.
IMPORTANT:
If height of chimney assembly exceeds requirements
for transportation of home, chimney installation may be completed
after home is sited.
NOTE
: Termination must always be installed after the home is sited.
ASSEMBLY AND INSTALLATION OF DOUBLE WALL CHIMNEY
SYSTEM
Each double wall chimney section consists of a galvanized outer pipe,
a stainless steel inner flue pipe and a wire spacer. Pipe sections must
be assembled independently as chimney is installed. When connecting
chimney directly to fireplace, inner flue pipe section must be installed
first with lanced side up. Outer pipe section can then be installed over
flue pipe section with hemmed end up. Press down on each pipe section
until lances securely engage hem on fireplace starter. Wire will assure
proper spacing between inner and outer pipe sections.
Note:
For Canada, use chimney parts designated HT.
WARNING
The opening in the collar around the chimney at the top
of the fireplace must not be obstructed. Never use blown
insulation to fill the chimney enclosure.
Continue to assemble chimney sections as outlined above, making
sure that both inner and outer pipe sections are locked together. When
installing double wall snap-lock chimney together, it is important to
assure that the joint between chimney sections is locked. Check by
pulling chimney upward after locking. Chimney will not come apart
if properly locked. It is not necessary to add screws to keep chimney
together (exception, see
Figure 27, page 13
)
ADJUSTABLE FIRESTOP THIMBLE
This adjustable thimble adjusts to the most commonly used ceiling
pitches automatically. Refer to the following procedure for installing
the adjustable thimble:
The adjustable thimble may be installed around the chimney com-
ponents at assembly or the chimney components may be inserted
though the installed thimble.
Install the thimble from below a finished roof and ceiling assembly.
Push the thimble assembly (tube section first) up into an already
prepared opening and secure open end of the thimble base to the
finished underside of the roof and ceiling assembly (Figure 13).
Note:
The two screws on which the thimble base pivots may be
removed and reinstalled into any of the series of placement holes
provided for the adjustment of the adjustable thimble's point of
rotation (Figure 10). Adjust the pivot screens to locate the open end
of the tube section as required for the roof line. Additional screws
may be placed at the high and low points of the thimble base in the
tabs provided.
Place the thimble base against the finished roof and ceiling assembly
and secure it to the framing with screws or nails. The thimble is self-
adjusting around inserted chimney components. Thimble extensions
are available and may be installed into the adjustable thimble's tube
The chimney system approved for this fireplace consists of 12",
18", 24", 36" and 48" snap-lock, double-wall pipe segments,
planned for maximum adaptability to individual site requirements.
Actual lengths gained after fitting overlaps must be taken into
consideration (lineal gain) and are given in lineal gain chart (see
Figure 8). Lineal gain is actual measurable length of a part after
two or more parts are connected.
Figure 8 - Lineal Gain
Hemmed
End
8" Stainless
Inner Pipe
12
3
/
8
" Galvanized
Outer Pipe
LINEAL GAIN
CAT. NO. PART NO.
DESCRIPTION
GAIN
36"
Fireplace
37
1
/
2
"
F0895
F0881
12-8DM
12-8HT
Pipe Section
10
5
/
8
"
F0896
F0882
18-8DM
18-8HT
Pipe Section
16
5
/
8
"
F0897
F0883
24-8DM
24-8HT
Pipe Section
23
5
/
8
"
F0898
F0884
36-8DM
36-8HT
Pipe Section
34
5
/
8
"
F0899
F0885
48-8DM
48-8HT
Pipe Section
46
5
/
8
"
F0916
RT-8DM
Round Termination
6
7
/
8
"*
RTL-8DM
Round Termination
7
3
/
4
"*
F0918
RLT-8DM
Round Termination
7
1
/
2
"*
F0917
RTT-8DM
Round Termination with
Slip Section
6
7
/
8
" to
23
1
/
8
"*
RTTL-8DM
Round Termination with
Slip Section
8
1
/
2
" to
21
1
/
2
"*
F0919
RLTT-8DM
Round Termination with
Slip Section
7
1
/
2
" to
21
1
/
4
"*
F0920
ET-8DM
Square Chase-Top
12"*
F0922
ETO-8DM
Square Chase-Top with
Mesh
12"*
F0921
ETL-8DM
Square Chase-Top with
Slip Section
7" to 15"*
F0923
ETLO-8DM
Square Chase-Top with
Mesh & Slip Section
12" to
25
1
/
2
"*
* The lineal gain for the terminations is measured to the flue gas
outlet height.