DuraVent DuraStack Installation - Manual (Page 10)

TEE CAP (TC)
1.....Use.to.block.one.of.the.openings.of.horizontal.or.vertical.tee.
2.....Removable,.it.facilitates.access.for.inspection.and.maintenance.of.
the.chimney.
3.....The.installation.is.the.same.as.for.lengths.
4.....When.removed,.the.old.silicone.must.be.cleaned.out.and.a.new.bed.
of.sealant.must.be.applied.
DRAIN-TEE CAP (DTC)
1.....Use.as.a.drain.for.vertical.stack.
2.....Connect.to.a.suitable.drain.fitting.to.allow.rain.entering.the.chimney.
to.wash.down,.dilute.and.remove.any.corrosive.residue.
3.....Same.installation.as.a.tee.cap.
Figure 15 - Tee cap and Drain-Tee Cap
Tee cap Drain-Tee Cap
STEP 1 Diameter 2 Diameters 3 Diameters
C 4” 8” 12”
Table 10 - Tapered increaser height
NOTE:.DIAGRAMS.&.ILLUSTRATIONS.ARE.NOT.TO.SCALE.
10
INCREASER, STEP OR TAPERED
1.....Use.to.increase.the.diameter.of.the.chimney.flue.
2.....The.tapered.increaser.induce.less.pressure.drop.than.the.step.in-
creaser,.but.requires.more.space...It.has.a.15°.side.angle.and.provides.
increases.of.one,.two.or.three.size...The.height.of.the.fitting.varies.
depending.on.the.diameters.to.be.increased.(see.figure 17).
3.....The.tapered.increaser.have.the.same.load.strength.as.a.standard.
length,.but.the.step.increaser.is.a.non-structural.part.and.must.be.
protected.from.axial.and.lateral.load.
Figure 16 - Increaser height
ELBOWS
1.. .Elbows.are.used.for.changes.in.direction.in.horizontal.or.vertical.
portions.of.a.chimney.system.
2.. .All.elbows.feature.the.standard.joint.assembly.as.described.in.Section.
A.-.Chimney.and.Fitting.Assembly.
3.. .Elbows.are.used.in.combination.to.make.different.angles.ranging.
from.3°.to.90°.in.horizontal.and.vertical.breechings.of.the.chimney.
system.
4.. .Elbows.are.not.designed.to.take.bending.loads.and.must.be.structurally.
supported.(see.figure 17)...Structural.parts.such.as.posts.or.beams.
may.also.be.needed.to.hold.chimney.supports.in.position.
* See table 10
Ø B
2”
2”
C*
Ø A
Ø B
Ø A
6”
2X 45° Elbows
Anchor plate (AP) and
frame (by others)
Wall support (WS)
Expansion length
Figure 17 - Supported elbow