Astria Tuscan42P2 - Page 8

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127051-01D
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Figure 7 - Typical Offset Installation
VENTING INSTALLATION Continued
ASSEMBLY AND INSTALLATION OF DOUBLE WALL CHIMNEY
SYSTEM
Eachdoublewallchimneysectionconsistsofagalvanizedouter
pipe,astainlesssteelinneruepipeandawirespacer.Pipesections
must be assembled independently as chimney is installed. When
connectingchimneydirectlytoreplace,inneruepipesection
must be installed first with lanced side up. Outer pipe section can
thenbeinstalledoverue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.
Opening in collar around chimney at top of
fireplace must not be obstructed. Never use blown
insulation to fill chimney enclosure.
Continuetoassemblechimneysectionsasoutlined,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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9,page9).
The height of a vertical chimney pipe supported ONLY by the
replace,mustnotexceed20feet.Chimneyheightsabove20feet
must be supported.
USING ELBOW OFFSET 30E-12DMO-8DMR
To clear overhead obstructions, you may offset your chimney system
using 30E-12DMO-8DMR30°Offset/returnelbow.
A section or sections of chimney may be used between offsets and
return elbow. Transition pipe must be used after elbow offset is
attached.
1. To achieve desired offset, you may install combinations of 12",
18",24",36"and48"lengthofdoublewallpipe(seeoffsetchart).
Note: For systems with 2 elbow sets, minimum height is 22 feet.
Maximumheightforanysystemis50feet.
2. Chimneyweightaboveoffsetrestsonreturnelbow.Strapsmust
besecurelynailedtoraftersorjoists(seeFigure8,detailsAand
B,page9).
3. Maximumlengthofpipebetweensupports(returnelbowor12S-
8DM)is6'ofanglerun.Maximumoftwo6'anglerunsections
perchimneysystem(seeFigure7).
4. All pipe connections between offset and return must be secured
withtwoscrewsonouterpipeonly(seeFigure9,page9).Do
not penetrate inner stainless.
30E-8DM
Return Elbow
30E-8DM
Return Elbow
30E-8DM
Offset Elbow
30E-8DM
Offset Elbow
30E-12DMO-8DMR
Offset Elbow
30E-12DMO-8DMR
Offset Elbow
30E-12DMO-8DMR
Offset Elbow
30E-12DMO-8DMR
Return Elbow
30E-12DMO-8DMR
Return Elbow
30E-12DMO-8DMR
Return Elbow
Starter
Section
Starter
Section
Starter
Section
6' Max.
8 DM Pipe
8 DM Pipe
6' Max.
6' Max.
6' Max.
6' Max.
6' Max.
Ceiling
Support Pipe
12S-8DM
A B C