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May 5, 2011
7039-131H
Page15
2100 Millennium Wood Stove (ACC)
R
Thimble
Siteconstructedformasonrychimneyinstallation:
Components
• A minimum length of 12 inches [305mm](longer for
thicker walls) of solid insulated factory-built chimney
lengthconstructedtoUL103TypeHT6inch(152mm)
insidediameter.Chimneyneedstoextendaminimum
of2 inches(51mm)from theinteriorwall andamini-
mumof1inch(25mm)fromtheexteriorwall.
• Wallspacer,trimcollarandwallbandtotsolidpack
chimneyselected.
• Minimum8inch(203mm)diameterclaylinersection(if
notalreadypresentinchimney)andrefractorymortar.
Air Clearances
•MasonrychimneyclearancemustmeetNFPA211mini-
mum requirementof 2inches (51mm)to sheetmetal
supportsandcombustibles.
•Minimumof1inch(25mm)clearancearoundthechim-
neyconnector.
•Top of wall opening is a minimum of 13-1/2 inches
(343mm) fromceiling or4-1/2 inches(114mm)below
minimum clearance specied by chimney connector
manufacturer.NFPA211minimumverticalclearanceof
18inches(457mm)fromchimney connectorandceil-
ing orminimumrecommended bychimney connector
manufacturer.Figure 15.1.
Instructions:
1. Openinsidewallatproperheightforthechimneycon-
nectortoentrythemasonrychimney. Figure 15.1
2. Entryholetomasonrychimneymustbelinedwithan8
inch(203mm)minimumdiameterclayliner,orequiva-
lent,securedwithrefractorymortar.
3. Constructa17inchx17inch(432mmx432mm)out-
side dimension frame from 2 x 2 framing lumber to
tintowallopening.Insideopening offrameshould
benolessthan14inchx14inch(356mmx356mm).
Figure 15.1.
4. Attach the wall spacer to the chimney side of the
frame.
5. Nailtheframeintothewallopening.Thespacershould
beonthechimneyside.
6. Insertthe sectionof thesolid insulatedchimney into
theouterwallofthemasonrychimney.
7. Tightlysecurethelengthofthesolidinsulatedchimney
withthewallbandtothemasonrychimney.
8. Insertasectionofchimneyconnectorintothechimney.
Make sureit doesnotprotrude pastthe edgeof the
claychimneylinerinsidethechimney.
9. Sealtheendofthechimneyconnectortotheclayliner
withrefractorymortar.
10.
Installtrimcollararoundthesoldpackchimneysection
.
Figure 15.1
Trim Collar
Chimney Section
with 2 inch
(51mm)
Clearance to
Combustibles
Chimney
Connector
Fire Clay Flue
Liner
with Airspace
Masonry
Chimney
Wall Band to
Secure Chimney
Section
Wood Studs Used
for Framing - Spaced
2 inch (51mm)
clearance from
Masonry Chimney
Wall Spacer
Solid Pack Chimney with Metal Supports as a Thimble
Figure 15.2
Fire Risk.
DoNOTpackinsulationorothercombustiblesbetween
spacers.
• ALWAYSmaintainspeciedclearancesaroundvent-
ingandspacers.
• Installspacersasspecied.
Failuretokeepinsulationorothermaterialawayfrom
ventpipemaycausere.
WARNING
1.5”
1.0”
2.0”
2.0”
1.5”
14.0” ID
17.0” OD
ceiling
Minimum18.0”
NFPA 211
13.5” below ceiling to top
of opening
1.0”
8.0”
1.5 2x2 framing stud
2.0 min air clearance
1.0 min air clearance
4.5
or top of opening is a min.of
4.5” below min.clearance
specified by connector mfg.
Center of Hole
Thimble
C
L
C
L
Wall
Include depth
of hearth pad