DuraVent DuraStack Installation - Manual (Page 4)

NOTE:.DIAGRAMS.&.ILLUSTRATIONS.ARE.NOT.TO.SCALE.
4
WARNINGS
DO NOT INSTALL ANY TYPE OF INSULATION IN THE
REQUIRED CLEARANCE SPACES SURROUNDING
THE CHIMNEY.
OPENING THROUGH COMBUSTIBLE CONSTRUCTION
The.following.table.serves.to.identify.the.minimum.opening.required.when.
installing.a.chimney.through.a.floor,.wall.or.roof.made.of.combustible.
material...See.table 3.and.figure 1.
DIS
PART NUMBERS
These.instructions.identify.major.model.DIS./.DAS.parts.by.name.and.
part.number.
Example:
DIS.36”.length.with.inside.diameter.14”.made.of.ss316.inner.flue.and.
ss304.outer.casing.
. DIS. 14. L36. BC
. Model. Dia.. Part. Material
DAS.30°.elbow.with.inside.diameter.22”.made.of.ss304.inner.flue.and.
galvalume.outer.casing.
. DAS. 22. E30. CE
. Model. Dia.. Part. Material
DIS.wall.support.for.8”.diameter.chimney.made.of.galvalume.
. DIS. 8. WS. E
. Model. Dia.. Part. Material
Use only factory-supplied components. Failure to do so will
void the certification and the warranty of the chimney system.
EFFECTIVE LENGTH
DIS / DAS
When.assembling.two.parts.together,.the.joint.will.overlap.5/8”...So.ef-
fective.length.is.nominal.length.minus.5/8”
Example:
. . ........Effective length
. L36.  35-3/8”
. L24.  23-3/8”
. L18.  17-3/8”
. L12.  11-3/8”
Figure 1
B = A + 4”
OPENINGS - Minimum open-
ing required when installing
a chimney through a floor,
wall or roof made of com-
bustible material.
A
B
C
Inside diameter B.H.A Chimney 1400°F Chimney Grease Duct
Ø5” to Ø36” 1” 1” 2”
Table 1 - Minimum air space clearance to combustible construc-
tion model DIS
Inside diameter B.H.A Chimney 1400°F Chimney
Ø5” to Ø36” 4” 4”
Table 2
Inside diameter (A) Roof / Floor (C) 1400°F Chimney (C)
Ø5” to Ø10” Inside Ø + 12” Inside Ш + 12”
Ш12” to Ø36” Inside Ø + 12” Not listed
Table 4 - Minimum openings
Chimney outside diameter
2” Insulation
Chimney inside diameter
Clearance opening
Inside diameter (A) Roof / Floor (C) Wall (C)
Ø5” to Ø10” Inside Ø + 8” Inside Ш + 8”
Ш12” to Ø36” Inside Ø + 8” Not Listed
Table 3 - Minimum openings
DAS
Minimum. air. space. clearance. to. combustible. construction. to. DAS.
chimney.is.4”.
DAS
CLEARANCES
DIS
Minimum air space clearance to combustible construction to model
DIS Chimney is 1”.
For non-combustible construction, maintain clearances as required
for installation, access for inspection or per local code.