Vermont Castings Montpelier Medium Insert User manual

1Vermont Castings • Montpelier Medium Insert Installation & Operating Manual_R26 • 05/19 3-90-30004403
For Use in North America
4403
Montpelier cover
1/08
SAFETY NOTICE: IF THIS APPLIANCE IS NOT
PROPERLY INSTALLED, OPERATED AND
MAINTAINED, A HOUSE FIRE MAY RESULT.
TO REDUCE THE RISK OF FIRE, FOLLOW THE
INSTALLATION INSTRUCTIONS. FAILURE TO
FOLLOW INSTRUCTIONS MAY RESULT IN PROPERTY
DAMAGE, BODILY INJURY OR EVEN DEATH.
CONTACT LOCAL BUILDING OFFICIALS ABOUT
RESTRICTIONS AND INSTALLATION INSPECTION
REQUIREMENTS IN YOUR AREA.
Owner's Manual
Installation and Appliance Setup - Care and Operation
INSTALLER: Leave this manual with party responsible for use and operation.
OWNER: Retain this manual for future reference.
Call your dealer for questions on Installation, Operation, or Service.
Montpelier Medium Insert
NOTICE: SAVE THESE INSTRUCTIONS
Please read this entire manual before
installation and use of this wood-burning
room heater.
Failure to follow these instructions could
result in property damage, bodily injury
or even death.
• Donotstoreorusegasolineorotherammablevapors
andliquidsinthevicinityofthisoranyotherappliance.
• Donotoverre-Ifanyexternalpartstartstoglow,you
areoverring.Closeaircontrols.Overringwillvoid
yourwarranty.
• Complywithallminimumclearancestocombustibles
asspecied.Failuretocomplymaycauseahousere.
WARNING
!
Testedandapprovedforusewithdry,seasonedcordwood
only.DoNotBurnWetorGreenWood.Burninganyother
typeoffuelwillvoidyourwarranty.
CAUTION
!
TheFrenchlanguageversionofthismanualisavailableonline:www.vermontcastings.com
Laversionfrançaisedecemanuelestdisponibleenligne:www.vermontcastings.com
Installationandserviceofthisapplianceshouldbeperformedby
qualiedpersonnel.Hearth&HomeTechnologiesrecommends
HHTFactoryTrainedorNFIcertiedprofessionals.

2Vermont Castings • Montpelier Medium Insert Installation & Operating Manual_R26 • 05/19 3-90-30004403
Introduction
Save These Instructions for Future Reference
The Montpelier Medium Insert is designed, tested
and listed for burning wood. Do not burn other fuels.
The Montpelier Medium Insert is not listed for mobile
home installations.
Failure to follow these instructions may result in
property damage, bodily injury or even death.
ThankyouforpurchasingaVermontCastingsMontpelierMediumInsert,anefcientwoodstovecarefullyengineeredto
bringyouthelatestinwoodcombustionprinciplesandmodernfoundrytechnology.
Thisstovetransformsatraditionalmasonryreplaceintoapowerfulheater.Youcancountonyearsofcomfortableheating
andpleasurablere-viewingifyouoperateandmaintainitaccordingtothedirectionsinthisOwner’sGuide.
ThisInserthasbeentestedandlistedbyOMNI-TestLaboratoriesofPortland,OregontoUL1482-1996(R2006)fortheUnited
StatesandULCS628-93forCanada.ThisInsertislistedto,andincompliancewith,thestandardssetforthbytheFederal
EnvironmentalProtectionAgency,40CFRPart60.532(b),asstatedonthepermanentlabelattachedtothestove.
ThismanualdescribestheinstallationandoperationofthisInsert.ThisheatermeetstheU.S.EnvironmentalProtection
Agency’semissionlimitsforwoodheaterssoldafterMay15,2015.Underspecictestconditionsthisheaterhasbeenshown
todeliverheatataraterangingfrom10,100to27,550BTU/hr.
Formorecompletedetailsonstoveperformanceandspecications,pleaserefertoPage3.
TheMontpelierMediumInsertisdesigned,testedandlistedforburningwood.Donotburnotherfuels.
InstallationorserviceoftheMontpelierMediumInsertshouldbeperformedonlybyaqualiedinstaller,preferablyNFIor
WETT(Canada)certied.
PleasereadentiremanualbeforeyouinstallanduseyournewInsert.
Failuretofollowtheseinstructionsmayresultinpropertydamage,bodilyinjuryorevendeath.
WARNING
!
This stove has not been tested with an unvented gas
log set. To reduce the risk of re or injury, do not install
an unvented gas log set into this replace.
Specications......................................................... 3
Dimensions............................................................. 4
Installation.............................................................. 5
SmokeAlarm/SafetyTip....................................... 11
Operation.............................................................. 12
Maintenance......................................................... 15
OptionalAccessories............................................ 18
ServicePartsList.................................................. 19
Warranty............................................................... 21
Table of Contents
= Contains updated information

SAFETY NOTICE: IF THIS APPLIANCE IS NOT PROPERLY INSTALLED, OPERATED AND MAINTAINED, A HOUSE
FIRE MAY RESULT.
TO REDUCE THE RISK OF FIRE, FOLLOW THE INSTALLATION INSTRUCTIONS. FAILURE TO FOLLOW
INSTRUCTIONS MAY RESULT IN PROPERTY DAMAGE, BODILY INJURY OR EVEN DEATH. CONTACT LOCAL
BUILDING OFFICIALS ABOUT RESTRICTIONS AND INSTALLATION INSPECTION REQUIREMENTS IN YOUR AREA.
!WARNING
This product and the fuels used to operate this product
(wood),andtheproductsofcombustionofsuchfuels,can
expose you to chemicals including carbon black, which
isknowntotheStateofCaliforniatocausecancer,and
carbonmonoxide,whichisknowtotheStateofCalifornia
to cause birth defects or other reproductive harm. For
moreinformationgoto:www.P65Warnings.ca.gov
California safety information 

3Vermont Castings • Montpelier Medium Insert Installation & Operating Manual_R26 • 05/19 3-90-30004403
Specications
*Weighted average LHV (Low Heating Value) efciency
using Douglas Fir dimensional lumber and data collected
during EPA emission test.
**Weighted average HHV (High Heating Value) efciency
using Douglas Fir dimensional lumber and data collected
during EPA emission test.
***A range of BTU outputs based on EPA Default Efciency
and the burn rates from the low and high EPA tests, using
Douglas Fir dimensional lumber.
****A peak BTU out of the appliance calculated using the
maximum rst hour burn rate from the High EPA Test and
the BTU content of cord wood (8600) times the efciency.
Thiswoodheaterneedsperiodicinspectionandrepairfor
properoperation.Itisagainstfederalregulationstooperate
this wood heater in a manner inconsistent with operating
instructionsinthismanual.
MODEL: MontpelierMediumInsert
LABORATORY: OMNITestLaboratories,Inc
REPORT NO. 259-S-13-2
TYPE: SolidFuelRoomHeater/Wood
BurningType
STANDARD(s): UL1482-1996,ULC-S628-93
ELECTRICAL
RATING: 115VAC,60Hz
Area Heated................................1,000-2,300Squarefeet
Loading....................................................................... Front
Chimney Connector:.......................................6"(150mm)
Flue Exit Position.........................................................Top
Primary Air...................................................... ManuallySet
Glass Panels........................... High-TemperatureCeramic
Weight......................................................335lbs.(152kg.)
Blower Rating................................. 150cfm.(115V,60Hz)
Power Cord Lenght.....................6FootUseableInstalled
EPA Certication Number: 696
EPA Certied Emissions: 2.9g/hr
*LHV Tested Efciency: 75.0%
**HHV tested Efciency: 68.5%
***EPA BTU Output: 10,000-27,600
****Peak BTU/Hour Output: 57,900
Other Important Information
Vent Size: 6Inch(152mm)
Firebox Size: 2.6cu.ft.
Max. Wood Length: 22"Maximum
Ideal Wood Length: 18"
Fuel SeasonedCordwood
(20%moisture)

4Vermont Castings • Montpelier Medium Insert Installation & Operating Manual_R26 • 05/19 3-90-30004403
Figure 1 -MontpelierMediumInsertdimensions.
Dimensions
17-1/4” (434 mm)
21-1/2”
(548 mm)
30-1/2” (774 mm)
28-3/4” (730 mm)
22-1/4”
(565 mm)
22-1/4” (564 mm)
11-1/2”
(292 mm)
4403
Montpelier dims
1/08
26-3/4” (680 mm) 14-1/4” (362 mm)
21-9/16” (547 mm)
21-9/16” (547 mm)
With3"
ProjectionKit
Without3"
ProjectionKit

5Vermont Castings • Montpelier Medium Insert Installation & Operating Manual_R26 • 05/19 3-90-30004403
SAFETY NOTICE: IF YOUR MONTPELIER MEDIUM
INSERT IS NOT PROPERLY INSTALLED, A HOUSE FIRE
MAY RESULT. TO REDUCE THE RISK OF FIRE, FOLLOW
THE INSTALLATION INSTRUCTIONS. CONTACT LOCAL
BUILDING OR FIRE OFFICIALS ABOUT RESTRICTIONS
AND INSTALLATION INSPECTION REQUIREMENTS IN
YOUR AREA.
Requirements for Existing Fireplaces
TheMontpelierMediumInsertislistedforinstallationwithin
aproperlybuiltmasonryreplace.
Thereplaceandchimneymustbecleanandstructurally
sound. Have them inspected by a qualied professional
chimney sweep, a mason, or your Vermont Castings’
AuthorizedDealerbefore the MontpelierMediumInsertis
installed.Any deterioration (cracks, loose mortar or loose
bricks)mustberepaired.
Codesmaypermitremovalofthedamperinordertomake
a positive vent connection between the rebox and the
chimney.However,thereplaceshouldnotbemodiedinany
waywithoutrstcheckingwithyourlocalbuildinginspectoror
remarshal.Provisionshouldbemadetorestorethereplace
toitsoriginalconditioniftheinsertisremoved.Donotremove
bricksormortarthatmayjeopardizethecomplianceofthe
replacewithlocalbuildingcodes.
The Montpelier Medium Insert is not listed for installation
in factory-built replaces.
Requirements for Existing Chimneys
Chimney requirements differ for the U.S. and Canada.
Specicationsforeacharelistedbelow.Connecttheinsert
to the chimney in accordance with local codes and the
requirementsofthelistingagencyasspeciedinthismanual.
Chimney Height / U.S. and Canada
Chimneyheightshouldbenolessthan15’(4.5m)abovethe
hearthandnomorethan35’(10.5m).
Thechimneyshouldextendatleast3’(914mm)abovethe
highestpointwhereitpassesthrougharoof,andatleast2’
(610mm)higherthananyportionofabuildingwithin10’(3
m).(Figure2)
DO NOT CONNECT YOUR MONTPELIER MEDIUM INSERT
TO A CHIMNEY FLUE SERVING ANOTHER APPLIANCE.
Installation
U.S.
In the U.S. (ANSI/NFPA 211, 1988), when installed in a
masonry replace:
• Aconnectormustextendfromtheuecollartotheue
liner.
• Ifastainlesssteellinerisnotused,theconnectormust
extend at least four (4) feet from the ue collar of the
insert.*
• Thecrosssectionalareaoftheuemustbelessthanor
equaltothreetimestheareaoftheuecollar.Iflarger,
thechimneymustbere-lined.
• Meansmustbeprovidedtopreventroomairpassingto
thechimneycavity.
• Provisionmustbemadeforremovalofthe insert to
cleanthechimneyue.
General Considerations / U.S.
• WhilenotrequiredinmostjurisdictionsintheU.S.,Vermont
Castingsstronglyrecommendsthatafullstainlesssteel
chimneylinerbeinstalledfortheinserttothechimneytop
toincreaseoverallperformanceandtoeaseandreduce
yearlymaintenance.
• Amasonrychimneymustbewell-constructedandmust
meet minimum code requirements.  The chimney ue
shouldhaveacode-approvedlinermadeofmasonryor
pre-castrefractorytiles,straightorexiblestainlesssteel
pipe,orapoured-in-placeliner.Anunlinedchimneymust
berelinedprofessionally.
• Thechimneymusthaveanominaluesizeof6"(152mm)
diameteror28squareinches(181cm2)butnogreaterthan
3timeslargeror85squareinches(548cm2).Achimney
largerthanthismustbere-lined.
2' Min.
2' Min.
3'
Min.
0 To 10'
3'
Min.
0 To 10'
AC617
RLTSKC8
2/11/98
ReferencePoint
Figure 2-The2’-3’-10’ruleforchimneys.
*ThisrequirementisinadditiontothosespeciedinANSI/NFPA211.

6Vermont Castings • Montpelier Medium Insert Installation & Operating Manual_R26 • 05/19 3-90-30004403
• Apermanentmetalwarninglabelmustbeafxedtothe
backofthereplacestatingthereplacemayhavebeen
alteredtoaccommodatetheinsert,andmaybeunsafeto
useasaconventionalreplace.(AFireplaceModication
TagisincludedinthehardwarebaginsidetheMontpelier
MediumInsert.)
Minimum Fireplace Dimensions
The Montpelier Medium Insert will t most replaces. To
conrmthatitwilltyours,measurethelinteldepth,plusthe
height,width,anddepthofyourreplaceandhearth.Compare
themtothemeasurementsinthe accompanyingchart.If
youchoosetoinstallanewhearthoveranexistingreplace
hearth,besuretotakeitsthicknessintoconsiderationwhen
measuringbothfrontandbackheightofthereplaceand
clearancestoanyexistingtrimsandmantels.
The unit can be installed virtually ush with the replace
openingoritcanextend3"(76mm)ontothehearthusingthe
optional3"HearthExtensionKit.Figure3givesminimumand
maximumdimensionsforreplaceswhichwillaccommodate
theMontpelierMediumInsertintheushmountconguration
andusingtheoptionalextensionkit.
NOTE: TheclearancebetweentheMontpelierMediumInsert
andthemantel,toptrimandsidetrimcannotbereducedby
installingshields.
Anotherrequirementtoconsideristheclearanceformovable
itemssuchastables,bookcases,rugs,furnishings,andyour
woodbox.Allcombustiblematerialsofthistypeshouldbe
aminimumof48"(1220mm)fromthefrontsurfaceofthe
MontpelierMediumInsert.Besurethatfamilymembersare
awareofthisrequirementaswell,sotheytoowillkeepobjects
asafedistancefromtheMontpelierMediumInsert.
Beawarethatachimneyoriginallydesignedforreplaceuse
mayperformdifferentlywhenusedtoventanair-controlled
appliancesuchasyourMontpelierMediumInsert-evenif
theueislessthan3timeslargerthantheuecollar.For
example, a chimney on an outside wall may not heat up
enoughtosustainanadequatedraft.Suchauecanoften
beimprovedifitisrelinedtoreduceitssizeand/orinsulated
tokeepitwarmer.
• A positive ue connection must be made between the
Insert and the rst masonry tile or prefabricated metal
chimneysection.A positive ueconnection consists of
aplatethatsealsorreplacesthereplacedamperand
asectionofchimneyconnectorthatpassesthroughthe
plateintothechimney.
• Thechimneyconnectormustbeaminimumequivalentto
a6"(152mm)diameteropeningandmustbe24gaugeor
heavierstainlesssteel.Theconnectormustextendfour
(4)feetmeasuredfromthecollaroftheinsert.
ChimneyConnectionsystemsareavailablefromavariety
of manufacturers. Your Vermont Castings dealer can
recommendasystemthatwillbestmeettherequirements
ofyourparticularinstallation.
Sealing Requirements / U.S.
• Thechimneymustbesealedofffromroomair,eitherby
a plate at the damper level or by sealing the replace
opening.
• Unusedopeningstotheuemustbesealedwithmasonry
tothethicknessofthechimneywall.Openingssealed
withpieplatesorwallpaperareahazard.Intheeventof
achimneyre,amesandsmokemaybeforcedfromthe
openings.
Canada
In Canada (CAN/CSA-B365-M91, Section 5), if installed
in a masonry replace:
• Thisreplaceinsertmustbeinstalledwithacontinuous
chimneylinerof6"(152mm)diameterextendingfromthe
replaceinserttothetopofthechimney.Thechimney
linermustconformtotheClass3requirementsofCAN/
ULC-S635, Standard for Lining Systems for Existing
Masonry or Factory-Built Chimneys and Vents,orCAN/
ULC-S640,Standard for Lining Systems for New Masonry
Chimneys.
• Theopeningofthereplacearoundtheinsertmustbe
sealedtopreventroomairpassingtothereplacecavity.
• Existingair-circulationchambersinareplacewithasteel
linermaynotbeblocked.
• Provisionmustbemadeforremovaloftheinserttoclean
thechimneyue.
• Theexistingreplacedamper(ifany)shouldbelocked
intheopenposition.

7Vermont Castings • Montpelier Medium Insert Installation & Operating Manual_R26 • 05/19 3-90-30004403
Fireplace Minimums
Flush Mount
3" Extended
Mount
AWidthatFace 27"(686mm)
BWidthatDimension'C' 22-1/2"(572mm) 22-1/2"(572mm)
CDepth117-1/2"(445mm) 14-1/2"(368mm)
DHeightatFace 21-1/2"(546mm) 21-1/2"(546mm)
EHeightatDimension'C' 21-1/2"(546mm) 21-1/2"(546mm)
Fireplace Maximums
HLintelDepth 8-1/2"(216mm)
IWidth241-1/2"(1054mm)
JHeight228-1/2"(724mm)
1. Theminimumdepthmustbemaintainedfromtheoorofthereplace
toaheightof21-1/2"(540mm)
2. ThoughtheMontpelierMediumInsert willtintolargerreplaces,
the decorative optional Vermont Castings Surround Panels will
notcompletelycoverthereplaceopeningifthesedimensionsare
exceeded.Custommadetrimpiecesmaybeused.
A,I
BC
D,J
E
D,J
H
CE
FP1084
winterwarm
fireplace minimum dimensions
3/01
Figure 3-UsethesemeasurementstoconrmthattheMontpelier
MediumInsertwilltintoyourmasonryreplace.
Clearance Requirements
Afterconrmingthatyourreplaceistherightsize,check
theclearancetocombustibles.Firstmarkwithtapetheexact
centerofyourreplaceopeningonthehearth.Measurethe
sideclearancefromthispoint.Measurethetoptrimand/or
mantelclearancesfromthenishedhearthsurface.Measure
thefrontclearance(tofurnishings,etc.)fromthereplace
face.(Figure4)
Hearth Requirements
Insomereplaces,thehearthinfrontofthereplaceopening
isbrick,stone,slate,orsomeothernon-combustiblematerial
thatisindirectcontactwithconcretepouredoverearth.These
aretheonlyhearthsthatareconsiderednoncombustible.In
otherreplaces,thebrickorconcretehearthinfrontofthe
replaceopening issupported by heavy wooden framing.
Because neither brick nor concrete has good insulating
properties, heat radiated by the re will pass downward
throughthe hearthto the woodenframing.  Suchhearths
areconsideredcombustible.
Unless the replace and hearth are constructed over a
completely non-combustible surface (such as unpainted
concreteoverdirt),athermaloorprotectormustbeused
infrontofandtothesidesofthedoorasprotectionagainst
spilledcoalsandembersandheatradiatedfromthefront
oftheinsert.Floorprotectorsmustextendatleast8"(203
mm)fromthesideoftheinsert,makingtheprotector44-3/4"
(1137mm)wide.
Inaddition,theoorprotectormustextendfromthefrontdoor
openingaminimumof16"(406mm)intheUnitedStatesand
18"(457mm)inCanada.(Figure5)
The approved construction of a oor protector calls for a
minimumof24gaugegalvanizedsheetmetalorequivalent,
andtheequivalentof1.25"(32mm)ofamaterialwithk-value
of0.84orless.
Custom-madeoorprotectorsmaybeusediftheyofferthe
sameprotection.Millboardhasastandardkvalueof0.84
andthus1-1/4"(32mm)ofthismaterialisadequatethermal
protection.Custom-builtoorprotectorsmusthaveakvalue
equalto,orlessthan0.84,meaningthatheatwilltransfer
atthesamerateormoreslowlythanthetestedstandard.
How to Determine if Alternate Floor Protection Materials
are Acceptable
Alloorprotectionmustbenoncombustible(i.e.metals,brick,
stone,mineralberboards,etc.).Anyorganicmaterials(i.e.
plastics,woodpaperproducts,etc.)arecombustibleandmust
notbeused.Theoorprotectionspecied
X
FP1085
WinterWarm
clearances
3/01
C
A
B
Measuresidetrim
clearancefromhere
Figure 4-Observetheseclearancestocombustibletrim.
Fireplace Clearances
Flush Mount 3" Extended Mount
AMantel 47-1/2"(1207mm) 44-1/2"(1130mm)
BTopTrim(1-1/2") 47-1/2"(1207mm) 36-1/2"(927mm)
CSideTrim* 21"(533mm) 21"(533mm)
*Wheresidetrimextendsmorethan1-1/2 " (38mm)fromthereplace
facing,thesideclearancemustbenolessthan26-1/2 " (673mm);thisis
alsotherequiredsidewallclearance.
Measurethesideclearance(C)fromtheexactcenterofyourreplace
openingonthehearth(X).Measurethetoptrim(B)and/ormantelclear-
ances(A)fromthenishedhearthsurface.Measurethefrontclearance
(tofurnishings,etc.)fromthereplaceface.

8Vermont Castings • Montpelier Medium Insert Installation & Operating Manual_R26 • 05/19 3-90-30004403
United States Canada
A* 16"(406mm) 18"(460mm)
B8"(203mm) 8"(203mm)
C44-3/4"(1137mm) 44-3/4"(1137mm)
Typically,thermalprotectionwiththeabovedimensionswillberequired.
Theequivalentof1.25"(32mm)ofamaterialwithak-value0.84(ora
total R-value of 1.49)isnecessary.
Iftheinsertiselevated8-1/2"(216mm)ormoreaboveacombustible
hearth, thermal protection is not needed. However, spark and ember
protectionisstillnecessary.
*Iftheinsertiselevated3"(76 mm)or more,withtheoptionalhearth
extension,thisdimensionmaybereducedto16"(406mm)(USonly)
beyondwhichnothermalprotectionisnecessary.
FP1095
hearth protection
2/08 djt
A
B
C
B
Figure 5-Unlessyourreplaceandhearthareconstructedover
adirtoor(orunpaintedconcreteoverdirt),youmustuseaoor
protectorthatsatisestheaboverequirements.
EXAMPLE: The specied oor protector should be 11⁄4"
thickmaterialwithk-factorof0.84.Theproposedalternate
is4"brickwithanr-factorof0.2over1⁄4"mineralboardwith
ak-factorof0.29
Stepa:UseformulaabovetoconvertspecicationtoR-value:
Stepb:CalculateRofproposedsystem.
 4"brickofr=0.2,therefore:
 R brick=0.2x4=0.8
 1/8"mineralboardofk=0.29,therefore
 R mineralboard=x0.25=0.431
 R total=Rbrick+Rmineralboard=0.8+0.431=1.66
Stepc:CompareproposedsystemRtotalof1.66tospecied
Rof1.49.SinceproposedsystemRtotalisgreaterthan
required,thesystemisacceptable.
Denitions
R=xT=x1.25=1.49
1
k
1
0.84
1
0.29
r==
(ft2)(hr)(°F)
(Btu)(in)
1
k
(Btu)(ft)
(ft2)(hr)(°F)
K  = 
k==Kx12
(Btu)(in)
(ft2)(hr)(°F)
R=(ft2)(hr)(°F)
Btu
includessomeformofthermaldesignationsuchasR-value
(thermalresistance)ork-factor(thermalconductivity).
Procedure:
1. ConvertspecicationstoR-value:
i.R-valuegiven-noconversionneeded.
ii.k-factorisgivenwitharequiredthickness(T)ininches:
iii.K-factorisgivenwitharequiredthickness(T)ininches:
iv.r-factorisgivenwitharequiredthickness(T)ininches:
R=rxT
2. Determine the R-value of the proposed alternate oor
protector:
i.  Use the formula in Step 1 to convert values not
expressedasR.
ii.  For multiple layers, add R-values of each layer to
determineoverallR-value.
3. IftheoverallR-valueofthesystemisgreaterthanthe
R-valueofthespeciedoorprotector,thealternateis
acceptable.
R=xT
1
Kx12
R=xT
1
k
Optional Surround Packages
Custom-made surround panels may be made from any
noncombustiblematerial.
VermontCastingsoffersbothsteelandcastironSurround
panelkits,eachintwosizes.
Georgian Cast Surround Enclosure Area
30DVSGTKCB,
30DVSGTKB.................... 30-1/4"x41(768x1041mm)
Mead Cast Surround:
 MEAD3CB........... 28-1/4"x41-11/16"(718x1059mm)
Caprice Cast Adjustable Prole Surround:
 CAPCB................................. 25"x35"(635x889mm)
Steel Surround:
 LHE30SSB......................27"x38-1/4"(686X972mm)
 LHE30SLB..................... 28-1/4"x41"(718x1041mm)

9Vermont Castings • Montpelier Medium Insert Installation & Operating Manual_R26 • 05/19 3-90-30004403
Installing the Montpelier Medium Insert
1. Remove or Disable the Fireplace Damper. If codes
allow,removethedamper.Manydamperscanberemoved
simplybyremovingacotterpinand/orasetscrew.
 Ifitisnotpermissibleorpossibletoremovethedamper,
securethedamperinthefullyopenposition.
~ NOTE: CANADIAN INSTALLATIONS ~
In accordance with CAN/CSA B365-M91, you must
permanently secure the Fireplace Modication Tag to
the rear of the replace cavity if you have modied the
replace in any way to accommodate installation of a
replace insert.Thistagisinthehardwarebagincluded
withyourInsert.
2. Install the Floor Protector.Makesuretheoorprotector
satises the requirements discussed on Page 6. The
nishedheightoftheoorprotectororraisedhearthneeds
tobeconsideredbeforeinstallingtheventingsystem.
3. Flue collar orientation:Theuecollarmaybeoriented
intheverticalpositionorrotated180degreesonthetop
ofthestoveresultingina26degreebackwardangle.If
possible,determinebeforehandwhichorientationwillwork
bestforyourapplication.
In most applications, cleaning of the chimney system will
beeasiestfromthetop(chimneycap)down.Ifthisisthe
plannedmethodforyourapplication,thecenterironpull
downhandleontheuecollarservesasprotectiontokeep
preventachimneybrushfromdamagingthebafeinside
thestove.Ifcleaningcanonlytakeplacefrominsidethe
home,thecenterbarmaybecutoutoftheuecollarusing
ahacksaworreciprocatingmetalcuttingsaw.
4. Install the venting system:Again,dependingonyour
applicationitmaybeeasiesttoinstalltheconnectoror
stainless steel ue liner in the chimney rst.  Refer to
Figure6forthecomponentsoftheventingsystem.
•Carefullyremovetheberbafebyrstremovingthe
frontairtube.Ifnecessary,removingtheremainingair
tubeswillalloweasieraccess.
• Removetheironuecollarfromthestoveandfasten
eithertheadapterpipeoruelinertoitbydrillingthree
holesusingtheholesintheironcollarasaguide.
• Securetheexiblepipetothepipeadaptorusingthe
samemethod.
• Installthe connector pipeorliner sothatthe height
measuredfromthenishedhearthsurfacetothecenter
baroftheuecollaris19"(483mm).(Figure7)This
willallowaneasyconnectiononcethestoveisrolled
intoplace.
Figure 6 -Componentsoftheventingsystem.
ST1002
Vent system components
3/08
FlexibleFlueLiner
FlexLinerAdapter
(ifrequired)
Adjustable(26"orvertical)
FlueCollarw/Integrated
Draw-DownBar
TopoftheInsert
AroundFlueOpening
Washers1/4Diameter
1/4-20HexNuts
Figure 7-Measuredheightfromthenishedhearthsurfacetothe
centerbaroftheuecollar.
19’
(483 mm)
Ref. 26”
ST1003
finished height
3/08
TwistonWood
Handle
5. Route the blower power cord.Runthepowercordout
theleftorrightsideoftheinsert.Removethecoverplate
andinserttheprovidedgrommetintotheslot.Reattach
thecoverplate.
NOTE: DO NOT RUN THE POWER CORD UNDER OR IN
FRONT OF THE UNIT.
6. Install the Optional Surround Kit.Followtheinstructions
providedwiththekit.
7. Roll the Firebox into Position. At least two people
willbeneededtomovetherebox.Liftthefrontofthe
stoveslightlytoputweightontherearwheelstoease
installation.Positionthereboxsotheuecollarlinesup
withtheconnector.Usethelevelingscrewsatthefront
oftheInserttoadjustthelevel.Routethepowercordto
thesidenearestthepowersupplyandtestthefans.

10 Vermont Castings • Montpelier Medium Insert Installation & Operating Manual_R26 • 05/19 3-90-30004403
Smoke and CO Detectors
The use of smoke and carbon monoxide (CO) detectors
throughout the home is strongly advised, even if not
required by building codes or insurance regulations.
It is a good idea to install a smoke detector in the living
areas and each bedroom. Follow the smoke/CO detector
manufacture's placement and installation instructions and
maintainregularly.
You may not, however, wish to install a detector in the
immediate vicinity of the Montpelier insert. Depending on
thesensitivityoftheunit,thealarmcanbesetoffwhileyou
aretendingthereoremptyingtheashes.Ifyouinstalla
detectorinthesameroom,locate it as far awayfromthe
insertaspossible.
Safety Tips
Convenientlylocatea"ClassA"reextinguishertocontend
with small res. Be sure the re extinguisher works and
isclearlyvisible.Alloccupantsofthehouseshouldknow
whereitis,andhowitoperates.Haveheavystovegloves
availableneartheinsert.Havespecialsafetyaccessories
(e.g.,ChildGuardScreen)availableforuseifsmallchildren
willbeinthehome.
Intheeventofastovepipeorchimneyre….
• Evacuatethehouseimmediately
• Notifytheredepartment
• If the re isn't too threatening, closing down the insert
tight,(damper,primaryair,alldoors)willhelptosmother
there.
• Inspect your insert, stove pipe and chimney for any
damage caused by the re and correct  any damage
beforeusingyourinsertagain.
8. Connect the Flue Collar. : Frominsidethestove,reach
upandpulltheuecollarintoplacebyliningupthetwo
1⁄4"studsinthestovetop.Careshouldbetakentonot
disturbthegasketwhichsealsthecollartothetop.Tighten
thetwo1⁄4"nuts.
• Replacethethreerearstainlesssteelairtubesby
slidingthemrsttotherightandthenintothemating
holes on the left. Secure these in place with the
stainlesssteelcotterpins.
• Beforeinstallingthefrontairtube,replacetheber
bafeboardandensureitslidesallthewaytothe
back.Thereshouldbeatighttbetweentheboard
andtheironsidesofthestove.
• Replacethefrontairtubeandsecureitinplacewith
thecotterpin.
9. Connect the Blower power cord to the power supply.
DO NOT ROUTE THE POWER CORD UNDER OR IN
FRONT OF THE UNIT.
10. Installthesuppliedwoodenhandlebytwistingclockwise
ontotheprimaryaircontrol.(Figure7)
ThiscompletesinstallationofyourMontpelierMediumInsert.