Superiorfireplaces.US.com
126622-01D
8
Figure 9 - Lineal Gain
Hemmed
End
8" Stainless
Inner Pipe
12
3
/
8
"
Galvanized
Outer Pipe
WARNING: The opening in collar around chimney
at top of fireplace must not be obstructed. Never use
blown insulation to fill chimney enclosure.
LINEALGAIN
PARTNO. DESCRIPTION GAIN
42" Fireplace 45"
SS-8DM Starter Section 19''
12-8DM
12-8HT
Pipe Section 10
5
/
8
"
18-8DM
18-8HT
Pipe Section 16
5
/
8
"
24-8DM
24-8HT
Pipe Section 23
5
/
8
"
36-8DM
36-8HT
Pipe Section 34
5
/
8
"
48-8DM
48-8HT
Pipe Section 46
5
/
8
"
RT-8DM Round Termination 6
7
/
8
"*
RTL-8DM Round Termination 7
3
/
4
"*
RLT-8DM Round Termination 7
1
/
2
"*
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
"*
RLTT-8DM
Round Termination
with Slip Section
7
1
/
2
" to
21
1
/
4
"*
ET-8DM Square Chase-Top 12"*
ETO-8DM
Square Chase-Top
with Mesh
12"*
ETL-8DM
Square Chase-Top
with Slip Section
7" to 15"*
ETLO-8DM
Square Chase-Top
with Mesh & Slip
Section
12" to
25
1
/
2
"*
* The lineal gain for the terminations is
measured to the ue gas outlet height.
VENTING INSTALLATION Continued
ASSEMBLY AND INSTALLATION OF DOUBLE WALL CHIMNEY
SYSTEM
SS-8DM starter section must be installed first.
Eachdoublewallchimneysectionconsistsofagalvanizedouter
pipe, a stainless steel inner flue pipe and a wire spacer. Pipe sections
mustbeassembledindependentlyaschimneyisinstalled.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
replacestarter. Wire willassure properspacingbetween inner
and outer pipe sections.
Note:ForCanada,usechimneypartsdesignatedHT.
Opening in collar around chimney at top of
fireplace must not be obstructed. Never use blown
insulation to fill chimney enclosure.
Continuetoassemblechimneysectionsasoutlined,makingsure
thatbothinnerandouterpipesectionsarelockedtogether.When
installing double wall snap-lock chimney together, it is important to
assurejointbetweenchimneysectionsislocked.Checkbypulling
chimneyupwardafterlocking.Chimneywillnotcomeapartifproperly
locked. It is not necessary to add screws to keep chimney together
(exception-seeFigure12,page10).
USING ELBOW OFFSET 30E-12DMO-8DMR
To clear overhead obstructions, you may offset your chimney system
using 30E-12DMO-8DMR30°Offset/returnelbow.
A section or sections of chimney may be used between offsets and
return elbow. Starter section must be used after elbow offset is at-
tached.
1. To achieve desired offset, you may install combinations of 12",
18",24",36"and48"lengthofdoublewallpipe(seeoffsetchart,
page10).
Note: For systems with 2 elbow sets, minimum height is 22 feet.
Maximum height for any system is 50 feet.
2. Chimneyweightaboveoffsetrestsonreturnelbow.Strapsmust
besecurelynailedtoraftersorjoists(seeFigure11,detailsAand
B,page9).
3. Maximumlengthofpipebetweensupports(returnelbowor12S-
8DM)is6'ofanglerun.Maximumoftwo6'anglerunsections
perchimneysystem(seeFigure10,page9).
4. All pipe connections between offset and return must be secured
withtwoscrewsonouterpipeonly(seeFigure12,page10).Do
not penetrate inner stainless.