Vermont Castings Defiant FlexBurn 1975 User manual

Vermont Castings • Deant Flexburn 1975 Owner’s Manual_R1 • 2021 - ___ • 08/21 18390-035C
Owner’s Manual
Operation & Care
INSTALLER: Leave this manual with party responsible for use and operation.
OWNER: Retain this manual for future reference.
Contact your dealer with questions on installation, operation, or service.
If the information in these instructions is not
followed exactly, a re may result causing
property damage, personal injury, or death.
WARNING
!
• 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applianceorchimneyconnector
glows,you are overring.Over ring will void your
warranty.
• Complywithallminimumclearancestocombustibles
asspecied.Failuretocomplymaycausehousere.
HOT SURFACES!
Glass and other surfaces are hot
during operation AND cool down.
Hot glass will cause burns.
WARNING
!
• Do not touch glass until it is cooled
• NEVER allow children to touch glass
• Keep children away
• CAREFULLYSUPERVISEchildreninsameroomas
replace.
• Alert children and adults to hazards of high
temperatures
• High temperatures may ignite clothing or other
ammable materials.
• Keep clothing, furniture, draperies and other
ammablematerialsaway.
2425
Encore NC Cover
5/05
ForuseinEurope,Japan&Australia
Deant® Flexburn 1975
Wood Burning Stove
NOTICE: SAVE THESE INSTRUCTIONS
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
!
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.

Vermont Castings • Deant Flexburn 1975 Owner’s Manual_R1 • 2021 - ___ • 08/2128390-035C
CongratulationsonyourchoiceofaVermontCastingsDeant®Flexburn1975WoodBurningStove.AtVermontCastings
wetakeAmericancraftsmanshipseriously.Weassureyouthatyourcast-ironVermontCastingsstovehasbeenmadewith
theutmostcareandwillprovideyouwithmanyyearsofservice.
Asyoubecomeacquaintedwithyournewstove,youwillndthatitsappearanceismatchedbyitsfunctionality,duetocast
iron’suniqueabilitytoabsorbandradiateheat.
Also,VermontCastingsproductsareamongthecleanest-burningwoodstovesavailabletoday.However,cleanburning
dependsonboththemanufacturerandtheoperator.Pleasereadthismanualcarefullytounderstandhowtoproperlyoperate
andmaintainyourstove.
AtVermontCastings,wearecommittedtoyoursatisfactionasacustomer.Thatiswhywemaintainanexclusivenetworkof
thenestdealersintheindustry.Ourdealersarechosenfortheirexpertiseanddedicationtocustomerservice.Feelfreeto
contactyourAuthorizedVermontCastingsDealeranytimeyouhaveaparticularquestionaboutyourstoveoritsperformance.
ThismanualcontainsvaluableinstructionsontheoperationofyourVermontCastingsDeant®Flexburn1975WoodBurning
Stove.Italsocontainsusefulinformationonmaintenance.Pleasereadthemanualthoroughlyandkeepitasareference.
Note: Cast iron is an artisan crafted material, which is made the same way today as nearly 2000 years ago. Due to
the intrinsic primitive nature of the casting process, part to part variation is normal and adds to the character of a
hand built cast iron appliance.
Pleasereadthisentiremanualbeforeyouoperateyournewstove.Failuretofollowinstructionsmayresultinproperty
damage,bodilyinjury,orevendeath.
BARCODE LABEL
BARCODE LABEL
HF
Serial No.
Numéro de série.
Seriennummer.:
8390-035A
Date of Manufacture / Date de fabrication:
2021 2022 2023 JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC
Manufactured by / Fabriqué par: Hearth and Home Technologies 352 Mountain House Road, Halifax PA 17032
U.S. ENVIRONMENTAL PROTECTION AGENCY Export
Stove. May not be sold or operated within the United States.
MODEL / MAQUETTE / MODELL: “Deant®Flexburn 1975”
LISTED SOLID FUEL ROOM HEATER BURNING FIREPLACE STOVE
HOMOLOGUE POELE A COMBUSTIBLE SOLIDES
Made in U.S.A. of US and imported parts.
Fabriqué aux États-Unis-d’Amérique par des pièces d’origine américaine et pièces importées.
LABEL TICKET
ECO: LABEL SIZE: 4.75” H x 15.75” W
PART # / REV: 8390-035 ADHESIVE:
ORIGINATOR: Spidlet MATERIAL: 24 Gauge Aluminum
DATE: 08/25/21 INK: Black Background
ALL CAUTION LITERATURE IN RED
(4) Holes = .156 x .250, Corners .062
Barcode label must have the serial number on it. The
barcode label must be able to read Code 39 Full ASCII.
352 Mountain House Road
Halifax, PA 17032
Europe
Nominal heat output: 11,0 kW
CO emission (at 13% O2): 0,06%
E󰀩ciency 81,0%
Flue gas temperature: 184,5 °C
Dust CO emission (at 13% O2): 8,9 mg/NM3
Fuel Type: Wood
Safety clearance distance (back): 400 mm
Safety clearance distance (side): 400 mm
Safety clearance distance (front):
Operation Type: Intermittent
Country Classication Standards Approved By Report #
Europe (Emissions) Intermittent EN13240:2001, EN13240/A2:2004, EN16510-1 CTIF No1677 4883, 4883P
Europe (Safety) EN13240:2001, EN13240/A2:2005 CTIF No. 1677 4883
Japan ASTM E2515, ASTM E2780, UL 1482-2011,
ULC-S627-00, CAN/CSA B415.1 Omni Test Laboratories 0135WS043E & 0135WS043S
Australia AS/NZS2918;2018, AS/NZS 4012/4013 (2014) ASFT ASFT21034
Europe - French
Puissance calorique nominale : 11,0 kW
Émission de CO (à 13% O2) : 0,06%
E󰀩cacité: 81,0%
Température des fumées : 184,5 °C
Émission de poussières de CO (à 13 % d’O2) : 8,9 mg/NM3
Type de carburant: Wood
Distance de sécurité (arrière): 400 mm
Distance de sécurité (côté) : 400 mm
Distance de sécurité (avant) :
Type d’opération : Intermittent
Europe - Flemmish
Nennwärmeleistung: 11,0 kW
CO-Emission (bei 13% O2): 0,06%
E󰀩zienz: 81,0%
Abgastemperatur: 184,5 °C
Staub-CO-Emission (bei 13% O2): 8,9 mg/NM3
Treibsto󰀨art: Wood
Sicherheitsabstand (hinten): 400 mm
Sicherheitsabstand (seitlich): 400 mm
Sicherheitsabstand (vorne):
Operationstyp: Intermittent
Japan
Nominal heat output: 11,0 kW
CO emission (at 13% O2): 0,06%
E󰀩ciency: 81,0%
Flue gas temperature: 184,5 °C
Dust CO emission (at 13% O2): 8,9 mg/NM3
Fuel Type: Wood
Safety clearance distance (back): 400 mm
Safety clearance distance (side): 400 mm
Safety clearance distance (front):
Operation Type: Intermittent
Australia
Overall average e󰀩ciency burning softwood When tested in
accordance with AS/NZS 4012: 65%
Average particulate emission factor burning softwood when tested in
accordance with AS/NZS 4013: 0,5 g/kg
Maximum average heat output when burning softwood: 9,3 kW
Approved Fuel: Burn only hardwood with a moisture
content less then 25% (dry basis)
Wetback - All Models Wetbacks are NOT an approved option
and must not be tted.
Performance may vary from test values depending on actual operating conditions.
SerialNo.
SAMPLE
ModelName
Mfg. Date

Vermont Castings • Deant Flexburn 1975 Owner’s Manual_R1 • 2021 - ___ • 08/21 38390-035C
TABLE OF CONTENTS
Safety Alert Key:
• DANGER! Indicatesahazardoussituationwhich,ifnotavoidedwillresultindeathorseriousinjury.
• WARNING!Indicatesahazardoussituationwhich,ifnotavoidedcouldresultindeathorseriousinjury.
• CAUTION! Indicatesahazardoussituationwhich,ifnotavoided,couldresultinminorormoderateinjury.
• NOTICE:Indicatespracticeswhichmaycausedamagetotheapplianceortoproperty.
!
A. WarrantyPolicy........................................................ 4
1 Product Listing and Important Safety Information
A. ApplianceCertication&E󰀩ciencySpecications ..6
B. GlassSpecications ................................................6
2 Operating Instructions
A. Appliance Controls...................................................8
B. ConditioningYourStove ..........................................9
C. WoodBurningOperation .........................................9
D. WaystoAddFuel.....................................................9
E. Ash Disposal............................................................13
F. Opacity(VisibleSmoke) .......................................... 14
G. NegativePressure ...................................................14
H. ImportantInformation...............................................15
3 Maintenance
A. CleaningandReplacementofGlass .......................16
B. DamperAdjustment ................................................. 17
C. DoorLatchAdjustment ............................................17
D. AshDoorAdjustment ...............................................17
E. GasketReplacement ...............................................17
F. TheChimneySystem ..............................................18
G. TheCatalyticElement..............................................19
4 Troubleshooting Guide ............................................21
5 Reference Material
A. Service&MaintenanceLog.....................................22
B. ServiceParts&Accessories.................................... 23
C. ContactInformation .................................................30
= Contains updated information


Vermont Castings • Deant Flexburn 1975 Owner’s Manual_R1 • 2021 - ___ • 08/2148390-035C
Hearth & Home Technologies LLC
LIMITED LIFETIME WARRANTY
Hearth & Home Technologies LLC (“HHT”) extends the following warranty for HHT gas, wood, pellet and electric hearth appliances
(each a “Product” and collecvely, the “Product(s)”) and certain component parts set forth in the table below (“Component Part(s)”)
that are purchased from a HHT authorized dealer or distributor.
WARRANTY COVERAGE:
HHT warrants that the Products and their Component Parts will be free from defects in materials and workmanship for the applicable
period of Warranty coverage set forth in the table below (“Warranty Period”). If a Product or Component Parts are found to be
defecve in materials or workmanship during the applicable Warranty Period, HHT will, at its opon, repair the applicable Component
Part(s), replace the applicable Component Part(s), or refund the purchase price of the applicable Product(s). The maximum amount
recoverable under this Warranty is limited to the purchase price of the Product. This Warranty is transferable from the original purchaser
to subsequent owners, but the Warranty Period will not be extended in duraon or expanded in coverage for any such transfer. This
Warranty is subject to condions, exclusions, and limitaons as described below.
WARRANTY PERIOD:
Warranty coverage begins at the date of installaon. In the case of new home construcons, Warranty coverage begins on the date of
rst occupancy of the dwelling or six months aer the sale of the Product(s) by an independent, authorized HHT dealer or distributor,
whichever occurs earlier. However, the Warranty coverage shall commence no later than 24 months following the date of Product
shipment from HHT, regardless of the installaon or occupancy date.
The term “Lifeme” in the table below is dened as: 20 years from the beginning date of warranty coverage for gas appliances, and 10
years from the beginning date of warranty coverage for wood and pellet appliances. These me periods reect the minimum expected
useful lives of the designated Component Parts under normal operang condions.
Page 1 of 2
4021-645L 10/20
Component
Parts Labor Gas Pellet Wood Electric Venting Component Parts Covered by this Warranty
XAll parts except as covered by Warranty Conditions,
Warranty Exclusions, and Warranty Limitations listed
X X
Igniters, Auger Motors, Electronic Components, and
Glass
X
Electrical components limited to modules, remotes/wall
switches, valves, pilots, blowers, junction boxes, wire
harnesses, transformers and lights (excluding light bulbs)
X X Molded Refractory Panels, Glass Liners
XVent Free Burners, Vent Free Logs
X X Castings, Medallions and Baffles
6 years 3 years XCatalysts
7 years 3 years X X Manifold tubes, HHT Chimney and Terminations
10 years 1 year XBurners, logs and refractory
Limited
Lifetime 3 years XXX Firebox and heat exchanger, FlexBurn®System
(engine, inner cover, access cover and fireback)
1 Year None XXXXX All purchased replacement parts
Warranty Period HHT Manufactured Appliances and Venting
All parts including handles, external enameled
components and other material except as covered by
Warranty Conditions, Warranty Exclusions, and
Warranty Limitations listed
2 years
X1 Year X X X
2 Years
5 years 1 year
Firepots, burnpots, mechanical feeders/auger
assemblies
3 years X
A. Warranty Policy

Vermont Castings • Deant Flexburn 1975 Owner’s Manual_R1 • 2021 - ___ • 08/21 58390-035C
WARRANTY CONDITIONS:
•
Because HHT cannot control the quality of any Products sold by unauthorized sellers, this Warranty only covers Products that are
purchased through an HHT authorized dealer or distributor unless otherwise prohibited by law; a list of HHT authorized dealers
is available on the HHT branded websites.
• This Warranty is only valid while the applicable Product remains at the site of original installaon.
• This Warranty is only valid in the country in which the HHT authorized dealer or distributor that sold the applicable Product is
authorized to sell applicable Product.
• Contact your installing distributor or dealer for Warranty service. If the installing dealer or distributor is unable to provide
necessary parts, contact the nearest HHT authorized dealer or supplier. Addional service fees may apply if you are seeking
Warranty service from a dealer other than the dealer from whom you originally purchased the applicable Product.
• No HHT consumer should bear cost of warranty service or costs incurred while servicing warranty claims (i.e., travel, gas, or
mileage) when the service is performed within the terms of this Warranty. Check with your dealer or distributor in advance for
any costs to you when arranging a warranty call. Travel and shipping charges for parts are not covered by this Warranty.
WARRANTY EXCLUSIONS:
This Warranty does not cover the following:
•
Changes in surface nishes as a result of normal use. As a heang appliance, some changes in color of interior and exterior surface
nishes may occur. This is not a aw and is not covered under the Warranty.
• Damage to printed, plated, or enameled surfaces caused by ngerprints, accidents, misuse, scratches, melted items or other
external sources and residues le on the plated surfaces from the use of abrasive cleaners or polishes.
• Repair or replacement of parts that are subject to normal wear and tear during the Warranty Period are not covered. These parts
include: paint, wood and pellet gaskets, rebricks, grates, ame guides, baeries and the discoloraon of glass.
•
Minor expansion, contracon, or movement of certain parts causing noise. These condions are normal and complaints related to
this noise are not covered by this Warranty.
• Damages resulng from: (1) failure to install, operate, or maintain the applicable Product in accordance with the installaon
instrucons, operang instrucons, and lisng agent idencaon label furnished with the applicable Product; (2) failure to
install the applicable Product in accordance with local building codes; (3) shipping or improper handling; (4) improper operaon,
abuse, misuse, connued operaon with damaged, corroded or failed components, accident, or improperly/incorrectly performed
repairs; (5) environmental condions, inadequate venlaon, negave pressure, or draing caused by ghtly sealed construcons,
insucient make-up air supply, or handling devices such as exhaust fans or forced air furnaces or other such causes; (6) use of fuels
other than those specied in the operaon instrucons; (7) installaon or use of components not supplied with the applicable
Product or any other components not expressly authorized and approved by HHT; (8) modicaon of the appliance not expressly
authorized and approved by HHT in wring; and/or (9) interrupons or uctuaons of electrical power supply to the applicable
Product.
• Non-HHT venng components, hearth connecons or other accessories used in conjuncon with the applicable Product.
• Any part of a pre-exisng replace system in which an insert or a decorave gas applicable Product is installed.
•
HHT’s obligaon under this Warranty does not extend to the Product’s capability to heat the desired space. Informaon is provided
to assist the consumer and the dealer in selecng the proper Product for the applicaon. Consideraon must be given to the
Product locaon and conguraon, environmental condions, insulaon and air ghtness of the structure.
This warranty is void if:
• The applicable Product has been over-red, operated in atmospheres contaminated by chlorine, uorine, or other damaging
chemicals. Over-ring can be idened by, but not limited to, warped plates or tubes, deformaon/warping of interior cast iron
structure or components, rust colored cast iron, bubbling, cracking and discoloraon of steel or enamel nishes.
• The applicable Product is subjected to prolonged periods of dampness or condensaon.
•
There is any damage to the applicable Product due to water or weather damage which is the result of, but not limited to, improper
chimney or venng installaon.
LIMITATIONS OF REMEDIES AND LIABILITY:
•
EXCEPT TO THE EXTENT PROVIDED BY LAW, HHT MAKES NO EXPRESS WARRANTIES OTHER THAN THE WARRANTY SPECIFIED
HEREIN. The owner’s exclusive remedy and HHT’s sole obligaon under this Warranty or in contract, tort or otherwise, shall be
limited to replacement of the Component Part(s), repair of the Component Part(s), or refund of the original purchase price of the
applicable Product(s), as specied above; provided, however, that (i) if HHT is unable to provide replacement of the Component
Part(s) and repair of the Component Part(s) is not commercially praccable or cannot be mely made, or (ii) the customer is
willing to accept a refund of the purchase price of the applicable Product(s), HHT may discharge all such obligaons by refunding
the purchase price of the applicable Product. In no event will HHT be liable for any incidental or consequenal damages caused
by defects in the applicable Product. Some States do not allow the exclusion or limitaon of incidental or consequenal damages,
so the above limitaon or exclusion may not apply to you. This Warranty gives you specic legal rights and you may also have
other rights which vary from State to State. THE DURATION OF ANY IMPLIED WARRANTY IS LIMITED TO DURATION OF THE
EXPRESSED WARRANTY SPECIFIED ABOVE FOR THE APPLICABLE PRODUCT. Some States do not allow limitaons on how long an
implied warranty lasts, so the above limitaon may not apply to you.
Page 2 of 2
4021-645L 10/20

Vermont Castings • Deant Flexburn 1975 Owner’s Manual_R1 • 2021 - ___ • 08/21 68390-035C
1 1 Product Listing and Important Safety Information
A. Appliance Certication & E󰀩ciency Specications
B. Glass Specications
This appliance is equipped with 5mm ceramic glass.
Replaceglassonlywith5mmceramicglass.Pleasecontact
yourdealerforreplacementglass.
Europe
Nominalheatoutput: 11,0 kW
COemission(at13%O2): 0,06%
E󰀩ciency 81,0%
Fluegastemperature: 184,5°C
DustCOemission(at13%O2): 8,9mg/NM3
FuelType: Wood
Safetyclearancedistance(back): 400mm
Safetyclearancedistance(side): 400mm
Safetyclearancedistance(front):
OperationType: Intermittent
Europe - French
Puissancecaloriquenominale: 11,0 kW
ÉmissiondeCO(à13%O2): 0,06%
E󰀩cacité: 81,0%
Températuredesfumées: 184,5°C
ÉmissiondepoussièresdeCO(à13%
d’O2):
8,9mg/NM3
Typedecarburant: Wood
Distancedesécurité(arrière): 400mm
Distancedesécurité(côté): 400mm
Distancedesécurité(avant):
Typed’opération: Intermittent
Europe - Flemmish
Nennwärmeleistung: 11,0 kW
CO-Emission(bei13%O2): 0,06%
E󰀩zienz: 81,0%
Abgastemperatur: 184,5°C
Staub-CO-Emission(bei13%O2): 8,9mg/NM3
Treibsto󰀨art: Wood
Sicherheitsabstand(hinten): 400mm
Sicherheitsabstand(seitlich): 400mm
Sicherheitsabstand(vorne):
Operationstyp: Intermittent
Japan
Nominalheatoutput: 11,0 kW
COemission(at13%O2): 0,06%
E󰀩ciency: 81,0%
Fluegastemperature: 184,5°C
DustCOemission(at13%O2): 8,9mg/NM3
FuelType: Wood
Safetyclearancedistance(back): 400mm
Safetyclearancedistance(side): 400mm
Safetyclearancedistance(front):
OperationType: Intermittent
Australia
Overall average e󰀩ciency burning
hardwood When tested in accordance
withAS/NZS4012:
65%
Average particulate emission factor
burning hardwood when tested in
accordancewithAS/NZS4013:
0,5g/kg
Maximumaverageheatoutputwhen
burningsoftwood: 9,3kW
ApprovedFuel:
Burn only
hardwood with a
moisturecontent
lessthen25%
(drybasis)
Wetback-AllModels
Wetbacksare
NOTanapproved
optionandmust
notbetted.
Performance may vary from test values depending
on actual operating conditions.

Vermont Castings • Deant Flexburn 1975 Owner’s Manual_R1 • 2021 - ___ • 08/21 78390-035C
NOTE:Hearth&HomeTechnologies,manufacturerofthis
appliance, reserves the right to alter its products, their
specicationsand/orpricewithoutnotice.
Improperinstallation, adjustment, alteration, service or
maintenancecancauseinjuryorpropertydamage.
Forassistanceoradditionalinformation,consultaqualied
installer, service agency or your dealer.
Vermont Castings is a registered trademark of Hearth &
HomeTechnologies.
• Installationanduseofanydamagedappliance.
• Modicationoftheappliance.
• InstallationotherthanasinstructedbyHearth&Home
Technologies.
• Installation and/or use of any component part not
approvedbyHearth&HomeTechnologies.
• Operatingappliancewithoutfully assembling all
components.
• Operatingappliancewithoutlegsattached(ifsupplied
withappliance).
• DoNOTOverre-Ifapplianceorchimneyconnector
glows,youareoverring.
Anysuchactionthatmaycausearehazard.
Fire Risk.
Hearth& Home Technologies disclaimsany
responsibilityfor,andthewarrantywillbevoided
by,thefollowingactions:
WARNING
!

Vermont Castings • Deant Flexburn 1975 Owner’s Manual_R1 • 2021 - ___ • 08/2188390-035C
22 Operating Instructions
A. Appliance Controls
Two controls regulate the performance of the Deant®
Flexburn1975:aprimary air control suppliesoxygenfor
there,andadamperdirectsairowwithinthestoveto
activateanddeactivatethecombustionsystem,Figure2.1.
Symbolsonthestoveareremindersofthecorrectdirections
forusingthecontrols.Thewords‘Left’and‘Right’inthese
directions are facing the stove.
Figure 2.1-TheDeant®Flexburn1975controlsareconveniently
located and easy to operate.
A Damper Directs Air Flow Within the Stove
The damper handle on the left side of the stove operates
thedampertodirectairowwithinthestove.
Thedamper isopen when the handle points to the rear,
enablingsmoketopassdirectlyintothechimney.Thedamper
mustbeopenwhenstartingorrevivingare,andwhenever
the griddle or doors are opened.
Thedamperisclosed when the handle points down.Smoke
travelsthrough the secondary combustion system where
it can be further burned, before passing up the chimney,
Figure2.3.
The damper should always be either fully open or fully
closed. There are no intermediate positions. When
closing the damper, be sure to pull rmly enough to snap
the handle into the locked position.
Thiswoodheaterhasamanufactured-setminimumlow
burnratethatmustnotbealtered.Itisagainstfederal
regulations to alter this setting or otherwise operate this
wood heater in a manner inconsistent with operating
instructionsinthismanual.
WARNING
!
A Single Air Control Regulates Heat Output and Burn Time
The primary air control lever, on the right of the stove,
controlstheamountofincomingairforstarting,maintaining,
andrevivingare.
Oncetheaircontrolismanuallyset,abi-metallicthermostat
automaticallymaintainstheheatoutputataconstantlevel
foramoreevenheatoverthelifeoftheburn.
Moreairenteringthestovemakesthereburnhotterand
faster,whilelessairprolongstheburnatalowerheatoutput
level.
Forthegreatestairsupplyandmaximumheatoutput(but
theshortestburntime),movethelevertowardthefrontof
thestove.Forarethatwilllastlongerwithlessheat,move
thelevertowardtherearoftheunit,Figure2.2.
Figure 2.2 -Thehandlemaybepositionedanywherebetweenthe
twoextremesfordi󰀨erentheatlevels.
Figure 2.3-Thedamperiseitheropenorclosed.Thereareno
intermediatepositions.
ST541
Defiant
front view
controls
11/00
GriddleHandle DoorHandle
Air
Control
Lever
AshDoorHandle
DoorHandle
Holder
(Behind
Leg)
Andiron
Damper
Handle
ST637
encore
Air control
2/01
Low Heat
High Heat
Damper Positions
DEFIANT
DEFIANT
Open(UpdraftMode) Closed(E󰀩cientMode)

Vermont Castings • Deant Flexburn 1975 Owner’s Manual_R1 • 2021 - ___ • 08/21 98390-035C
B. Conditioning Your Stove
Castironisextremelystrong,butitcanbebrokenwitha
sharp blow from a hammer or from the thermal shock of
rapidandextremetemperaturechange.
The cast plates expand and contract with changes in
temperature. When you rst begin using your Deant®
Flexburn1975,minimizethermalstressbylettingtheplates
adjustgraduallyduringthreeorfourinitialbreak-inres.
C. Wood Burning Operation
BurnonlysolidwoodintheDeant®Flexburn1975Wood
Stove,andburnitdirectlyonthegrate.Donotelevatethe
fuel.Donotburncoalorotherfuels.IntheUnitedStates,it
isagainstthelawtooperatethiswoodheaterinamanner
inconsistentwithoperatinginstructionsinthismanual.
The bypass damper must be open when starting a re
or when refueling.
Do not use chemicals or uids to start the re. Do not
burn garbage. Never use ammable uids such as
gasoline, gasoline type lantern fuel, kerosene, charcoal
lighter uid, naptha, engine oil or similar liquids to
start or “freshen up” a re in this heater. Keep all such
liquids well away from the heater while it is in use.
Thefollowingproceduresareimportantforreliable,clean
ande󰀩cientoperationofyourwoodstove.Recommend16”
logs Properly seasoned (up to a year for denser woods)
Splitto3”to6”crosssections
Cold start:
Whenstartingyourstoveatroomtemperatureandwhenno
burningcoalsarepresentthefollowingkindlingprocedure
hasbeenfoundtobethemostreliable.
Stackabout4lbsofnelysplitkindling(1”diameterorless
10to20pcs)ina‘logcabin’styledirectlyagainsttherear
wall. Place a small amount of newspaper on top of this
pilewithone or two small pieces of kindling on top. This
isreferredtoasatopdownmethodandwhileprovidinga
slowerstart,alsoservestopreheatthecombustionproperly
resultinginareliablestart.,Figure2.4.
Withthebypassdamperopenandtheprimaryairsettoits
highestposition,lightthenewspaper.Leavethefrontdoor
cracked until the kindling ignites, then close the doors.
Aftermostofthekindlinghasburnedintocoals(15to20
minutes),openthe front doors and push remaining coals
and unburned wood against the rear wall. Add several
piecesoflargersplitwoodbetween2to3inchesindiameter
(about6lbs)directlyagainsttherearwallandontopofthe
kindlingcoals.Closethedoorsandbypasstoengagethe
combustionsystem.Theairshouldremainonhighforup
toonehouroruntilthewoodismostlyconvertedtocoals.
After a hot bed of coals is produced, open the door and
bypassdamperandpushtheremainingcoalsagaintoward
the rear wall. Add large pieces of wood starting against
the rear wall and on top of the coals. Close the doors and
bypassimmediatelyafterloadingthestove.
Ideally,allowthiswoodloadtoburnatthehighestairsetting
forthe entire wood load. If this is not possible, thewood
should burn for at least 30 minutes prior to reducing the
primaryairsetting.
D. Ways to Add Fuel
To open the front doors, insert the handle into the door latch
stubandturnitclockwise,Figure2.5.
To close them, always close the left door rst. Turn the
handle in the right door to the left and up (to the open
position)andcloseit.Finally,pushonthedoorasyouturn
the handle counterclockwise. The doors will draw in slightly,
andthehandleshouldo󰀨ersomeresistanceasyouturnit
to the closed position.
Toreducetheriskofbreakingtheglass,avoidstrikingthe
glassorslammingthedoors.
When you are not using the door handle, store it in the
holderbehindtheleftfrontlegofthestove.
WARNING
!
Fireplace stoves equipped with doors should be
operated only with doors fully open or doors fully
closed. If doors are left partly open, gas and ame may
be drawn out of the replace stove opening, creating
risks from both re and smoke.
ST263
starting a fire
12/99
Figure 2.4-Starttherewithnewspaperanddrykindling.
Figure 2.5-Toopenthefrontdoors,turnthehandleclockwise.
ST544
door open
11/00
Clockwise to
Open
Counterclockwise
to Close

Vermont Castings • Deant Flexburn 1975 Owner’s Manual_R1 • 2021 - ___ • 08/2110 8390-035C
NOTE:Itwilltakeseveralminutesafterclosingthebypass
damperforthetemperatureprobetofullyadjusttothenew
temperature. If the probe indicator is below the operate
catalystrange,addfueloropenthebypassdampertoallow
theretofurtherbuildbeforeengagingthecatalystagain.
Iftheprobeindicatorisabovetheoperatecatalystrange,
the catalytic combustor is running too hot and may be
damaged.Inmanycases,decreasingthe primaryaircan
reducethecatalysttemperatureandaddinglesswoodwith
each loading can also help if overheating is persistent. Do
not add wood to the stove if the probe reads above the
operate catalyst range.
Avoidusingafullloadofverydrywoodintherebox,such
asdryslabwoodorwoodwithbelow14%moisturecontent.
Thismayresultincontinuousveryhightemperaturesinthe
secondarycombustionareaanddamagethecombustor.
Neverburntreatedwood,garbage,solventsortrash.Allof
thesemaypoisonthecatalystandpreventitfromoperating
properly.Neverburn cardboardorloosepaper exceptfor
kindlingpurposes.Neverburncoal;doingsocanproduce
soot or large akes of char or y ash that can coat the
combustor and cause smoke to spill into the room. Coal
smokecanalsopoisonthecatalystsothatitwon’toperate
properly.
NOTE:Thecatalyticcombustor isfragile andwill crackif
subjectedtothermalshock.Thermalshockcanoccurwhen
refuelingwithwetwoodorclosingthebypassdampertoo
early after refueling.
For best results when refueling, wear long-cu󰀨ed stove
glovestoprotectyourhandsandforearms.
Reloading a hot stove:
Whenawoodloadisaddedtoahotbedofcoals(continuous
use),openthebypassdamperandeitherthetoporfront
loadingdoors.Stirthehotcoalstoallowashtofallthrough
thegrate.Hotcoalsshouldthenbepushedagainsttherear
wall and leveled depending on the amount of coals.Add
freshwoodandclosetheloadingdoorandbypassdamper.
Ifthecoalsareglowingandhot,itispossibletosettheair
controltoanysettingimmediatelyafterloadingthestove.
Reloading a warm stove:
If the stove is relatively cold (for instance after a long
overnightburn),thecoalbedmayneedtobere-energized
priortoaddingalargeloadofwood.Openthebypassdamper
and either the top or front loading door. Stir the coals to
allowashtofallthroughthegrate.Pushtheremainingcoals
towardtherearwall.Closethedoor(s)andbypassdamper
and set the primary air to the highest position.Allow the
coalstore-igniteandheatthesystemfor10to15minutes.
Oncethecoalsareglowing,afreshbatchofwoodmaybe
addedfollowingthe“hotstove”procedureabove.
Aproperbedofcoalsiscriticaltotheperformanceofthe
Encore stove. The rear refractory wall of the stove should
bealmostentirelywhiteincolorwithproperoperation.This
indicates the combustion system is running at a proper
elevatedtemperature.Iftherearwallisblackwithcreosote
ordevelopsadarkbrowncolor,itislikelythatthecoalbed
isnotsu󰀩ciencylargeenoughorhotenough.Revisitthe
aboveinstructionsandadjusttheamountofkindlingortime
athighairsettingstogetthesystemhotter.Woodsizeor
excessive moisture may also cause lower than desirable
stovetemperatures.
While not required, operating your stove with the catalytic
combustor installed creates optimum conditions for
secondarycombustionandwillincreaseyoure󰀩ciencyup
to15%onlowburn,makingsureyougetthemostheatout
of each load of wood.
The catalytic element is a metal “honeycomb” coated
withthecatalyticmaterial.Theelementsitsatthebottom
of the secondary combustion chamber. Smoke, gases
and particulates that are not fully combusted during the
secondarycombustionprocesspassthroughthecatalyst,
creatingatertiaryburn.Thisresultsinhighere󰀩ciencyand
loweremissions.
Thecatalystwillinitiatecombustionofsmokeandparticulates
at500°-600°F(260°-315°C),halfthetemperaturenormally
requiredforunaidedsecondarycombustion.Ifyoufollowed
the startup operation steps in the previous section the stove
willbesu󰀩cientlyhottoallowthecombustortowork.Once
the combustor starts working, heat generated by burning
thesmokewillkeepitworking.
Todeterminewhetherthecombustorisoperating,referto
thetemperatureprobewhichshowstheoperatingrangeof
thecatalyticcombustor.Thisislocatedonthebackofthe
stoveandisviewedfromthetop.

Vermont Castings • Deant Flexburn 1975 Owner’s Manual_R1 • 2021 - ___ • 08/21 118390-035C
WARNING
!
DO NOT OPERATE THE STOVE WITH THE ASH
DOOR OPEN. OPERATION WITH THE ASH DOOR
OPEN CAN CAUSE AN OVER-FIRING CONDITION TO
OCCUR. OVER-FIRING THE STOVE IS DANGEROUS
AND CAN RESULT IN PROPERTY DAMAGE, INJURY
OR LOSS OF LIFE.
Andirons Help Protect the Glass
Yourstovehasandironstokeeplogsawayfromtheglass
panels. The andirons are essential to maintain clear re
viewing,andshouldbeleftinplace.Sincetheandironsmay
slightlyhinderrefuelingthroughthefrontdoors,moststove
owners will prefer the convenience of top loading through
thegriddle.Donotplacefuelbetweentheandironsandthe
doors.
Burn Only High-Quality Wood
The Deant® Flexburn 1975 is designed to burn natural
woodonly;donotburnfuelsotherthanthatforwhichitwas
designed.
IMPORTANT: Do not burn any type of articial or
synthetic materials such as re starter logs (containing
wax) in this appliance. Never burn liquid-based fuels
such as kerosene, gasoline or alcohol.
Burninganymaterialsnotallowedintheseinstructions,or
over-ringthestove,mayvoidthewarranty.
You’ll enjoy the best results when burning woodthathas
beenadequately air-dried.The woodshould be 16”-18”
(406-457mm) in length.Avoidburning “green” woodthat
hasnotbeenproperlyseasoned.(Note:Properlyseasoned
rewoodhasamoisturecontentbelow20percent.)Donot
burn construction materials; they often contain chemicals
and metals that can damage the inside surfaces of the
stoveandpollutetheair.Donotburnoceandriftwood;when
itburns,thesaltitcontainswillattackthecastiron.
Thebesthardwoodfuelsincludeoak,maple,beech,ash,
and hickory that has been split, stacked, and air-dried
outside under cover for at least one year.
Ifhardwoodisnotavailable,youcanburnsoftwoodsthat
includetamarack,yellowpine,whitepine,Easternredcedar,
r,andredwood.Theseshouldalsobeproperlydried.
Storesplitwoodundercovertokeepitdry.Evenforshort-
termstorage,besuretokeepwoodasafedistancefromthe
stove and keep it out of the areas around the stove used for
refuelingandashremoval.

Vermont Castings • Deant Flexburn 1975 Owner’s Manual_R1 • 2021 - ___ • 08/2112 8390-035C
Surface Thermometer is a Valuable Guide to Operation
Anoptionalsurfacethermometertellsyouwhentoadjust
theaircontrol,andwhentorefuel,Figure2.8.
Figure 2.8-Taketemperaturereadingswithathermometerlocated
inthemiddleofthegriddle.
For example, when the thermometer registers at least
450°F(230°C)onthestovetopafterstart-upyouknowthe
stoveishotenoughanditmaybetimetoclosethedamper
ifasu󰀩cientemberbedhasalsobeenestablished.Note
thatthestovewillwarmupmuchsoonerthanthechimney,
though;awarmchimneyisthekeytoeasy,e󰀨ectivestove
operation.Whenthermometerreadingsdropbelow350°F.
(175°C)it’stimetoadjusttheaircontrolforahigherburn
rate or to reload the stove. A temperature reading over
650°F.(340°C)isasigntoreducetheairsupplytoslowthe
burnrate.
Usethefollowingtemperaturerangesasaguide:
• Readingsinthe350°-500°F.(175°-260°C)rangeindicate
lowtomediumheatoutput.
• 500°-600°F. (260°-315°C) readings indicate medium
heat output.
• Readings of 600°-650°F. (315-340°C) indicate high
heat output. Operating your Deant® Flexburn 1975
continuouslyatgriddletemperatureshigherthan650°F
(340°C)maydamagethecastironorenamelnish.
Use the Air Control Settings that Work Best for You
No single air control setting will t every situation. Each
installationwilldi󰀨erdependingonthequalityofthe fuel,
theamountofheatdesired,andhowlongyouwishthere
toburn; outdoor air temperature andpressure also a󰀨ect
draft.
The control setting also depends on your particular
installation’s “draft,” or the force that moves air from the
stove up through the chimney. Draft is a󰀨ected by such
thingsasthelength,type,andlocationofthechimney,local
geography,nearbyobstructions,andotherfactors.
Toomuchdraftmaycauseexcessivetemperaturesinthe
Deant®Flexburn1975,andcouldevendamagethestove.
Ontheotherhand,toolittledraftcancausebackpu󰀩nginto
theroomand/orthe“plugging”ofthechimney.
Howdoyouknowifyourdraftisexcessivelyhighorlow?
Symptoms of too much draft include an uncontrollable
burnora glowing-redstovepart. Signsofweak draftare
smokeleakingintotheroomthroughthestoveorchimney
connectorjointsorlowheatoutput.
Insomenewerhomesthatarewell-insulatedandweather-
tight, poor draft may result from an insu󰀩cient air supply
inthehouse.Insuchinstances,anopenwindownearthe
stove on the windward side of the house can provide the
combustionairsupplyneeded.
Anotheroptionforgettingmorecombustionairtothestove
is to duct air directly from outside to the stove. In some
areasprovisionsforoutsidecombustionairarerequiredin
all new construction.
When rst using the stove, keep track of the air control
settings.Youwillquicklyndthataspecicsettingwillgive
youaxedamountofheat.Itmaytakeaweekortwoto
determinetheamountofheatandthelengthofburnyou
shouldexpectfromvarioussettings.
Most installations do not require a large amount of
combustion air, especially if adequate draft is available.
Donotforanyreasonattempttoincreasetheringofyour
heaterbyalteringtheaircontroladjustmentrangeoutlined
in these directions.
ST523
Intrepid
temp readings
11/00

Vermont Castings • Deant Flexburn 1975 Owner’s Manual_R1 • 2021 - ___ • 08/21 138390-035C
E. Ash Disposal
DO NOT OPERATE THE STOVE WITH THE ASH DOOR
OPEN. OPERATION WITH THE ASH DOOR OPEN CAN
CAUSE AN OVER-FIRING CONDITION TO OCCUR.
OVER-FIRING THE STOVE IS DANGEROUS AND CAN
RESULT IN PROPERTY DAMAGE, INJURY OR LOSS OF
LIFE.
Routineashremovalisimportantforeaseofmaintenance,
and is important for the stove’s durability. Remove ash
beforeitreachesthetopoftheashpan.Checkthelevelat
leastonceaday.Everyfewdays,clearanyashfromthe
outeredgesoftherebox.Mostoftheashwillfallthrough
thegrate.Stirtheashwithashovelorpokersothatitfalls
through the grate slots.
IMPORTANT:Checkthelevelofashintheashpanbefore
reloadingthestove.Iftheashlevelisclosetothetopedge
ofthepan,emptythepanaccordingtothisprocedure:
• Openthedamper.
• Open the griddle or front doors, and use a shovel or
pokertostirexcessashthroughtheashslotsinthegrate
down into the ash pan.
• Close the griddle or doors, and unlatch the ash door,
Figure2.9.Itwillpivot,swingingtheashpanoutofthe
stove.
• Removetheashpan,makingsuretokeepitlevel.
• Tokeepthecoverfromslidingo󰀨andtokeepashfrom
fallingontheoor,donottilttheashpanforward.
• If the stove is in operation, close the ash door while
disposingoftheash.Youmayneedtoliftthelatchend
ofthedoorslightlytoalignthelatchwiththematingpart
onthestovebottom.
• Properlydisposeoftheashinametalcontainerwitha
tight-ttinglid.Storethecontaineroutdoorsawayfrom
allcombustiblematerial.
• Return the ash pan to its original position in the stove,
and close and latch the ash door.
• Slidethecoverontothepan,makingsureitissecurely
closed,Figure2.10.
Figure 2.10-Besurethecoverissecurelyattachedbeforeremoving
the ash pan.
CAUTION
!
Never use your household or shop vacuum cleaner to
removeashfromthestove;alwaysremoveanddispose
of the ash properly.
Empty the ash pan regularly, typically every one to three
days. The frequency will vary depending on how you
operateyourDeant®Flexburn 1975:ashwill accumulate
faster at higher heat outputs.
Removed ash should be placed outdoors in a metal
containerwithatight-ttinglid.Keeptheclosedcontainerof
ashonanoncombustibleoororontheground,wellaway
from all combustible materials, pending nal disposal. If
theashisdisposedofbyburialinsoilorotherwiselocally
dispersed,itshouldbekeptintheclosedcontaineruntilall
cinders have thoroughly cooled.
WARNING
!
Do not operate the stove with the ash door open. This
will result in over-ring, and could cause damage to
the stove, void the warranty, or even lead to a house
re.
Figure 2.9- Turn the ashdoor handle clockwise to open and
counterclockwise to close.
ST545
ashdoor
11/00
Open
Close
ST566
remove ashpan
7/05

Vermont Castings • Deant Flexburn 1975 Owner’s Manual_R1 • 2021 - ___ • 08/2114 8390-035C
F. Opacity (Visible Smoke)
Thisisthemeasureofhowcleanlyyourapplianceisburning.
Opacity is measured in percent; 100% opacity is when
anobjectistotallyobscuredbythesmokecolumnfroma
chimney,and0%opacitymeansthatnosmokecolumncan
beseen.Asyoubecomefamiliarwithyourappliance,you
should periodically check the opacity. This will allow you to
knowhowtoburnasnearlysmoke-freeaspossible(goalof
0%opacity).
Whenburningyourrstre,youwillexperiencesmokeand
odorfromtheapplianceresultingfromthecuringofpaint
andburningo󰀨ofanyoilsremainingfrommanufacturing.
OPENWINDOWSDURINGINITIALBURNTODISSIPATE
SMOKE AND ODORS!
• Odorsmaybeirritatingtosensitiveindividuals.
• Smokedetectorsmayactivate.
CAUTION
!
Fire Risk
•  DONOTBURNGARBAGEORFLAMMABLE
FLUIDSSUCHASGASOLINE,NAPTHAOR
ENGINEOIL.
WARNING
!
• DoNOTburntreatedwoodorwoodwithsalt(driftwood).
• Maygeneratecarbonmonoxideifburnmaterialother
than wood.
Mayresultinillnessorpossibledeath.
Fire Risk
Keepcombustiblematerials,gasolineandother
ammablevaporsandliquidsclearofappliance.
WARNING
!
• Combustiblematerialsmayignite.
• DoNOTstoreammablematerialsintheappliance’s
vicinity.
• DO NOT USE GASOLINE, LANTERN FUEL,
KEROSENE, CHARCOAL LIGHTER FLUID OR
SIMILARLIQUIDSTOSTARTOR“FRESHENUP”A
FIREINTHISAppliance.
• Keep all such liquids well away from the appliance
while it is in use.
Negativepressureresultsfromtheimbalanceofairavailable
fortheappliancetooperateproperly.Itcanbestrongestin
lower levels of the house.
Causes include:
• Exhaustfans(kitchen,bath,etc.)
• Range hoods
• Combustion air requirements for furnaces,water
appliancesandothercombustionappliances
• Clothes dryers
• Locationofreturn-airventstofurnaceorairconditioning
• ImbalancesoftheHVACairhandlingsystem
• Upperlevelairleakssuchas:
 - Recessedlighting
 - Attichatch
 - Ductleaks
Tominimizethee󰀨ectsofnegativeairpressure:
• Install outside air to the stove with the intake facing
prevailing winds during the heating season
• Ensure adequate outdoor air for allcombustionappliances
andexhaustequipment
• Ensure furnace and air conditioning return vents are not
locatedintheimmediatevicinityoftheappliance
• Avoid installing the appliance near doors, walkways or
smallisolatedspaces
• Recessedlightingshouldbea“sealedcan”design
• Attic hatches weather stripped or sealed
• Atticmountedductworkandairhandlerjointsandseams
taped or sealed
G. Negative Pressure
Asphyxiation Risk
• Negative pressure can cause spillage of
combustionfumes,sootandcarbonmonoxide.
• Appliance needs to draft properly for safety.
WARNING
!

Vermont Castings • Deant Flexburn 1975 Owner’s Manual_R1 • 2021 - ___ • 08/2115 8390-035C
Draft Testing: Aneasywaytotestyourchimneydraftisto
closethestove’sdamper,waitafewminutestolettheairow
stabilize,thenseewhetheryoucanvarythestrengthofthe
rebyswingingtheaircontrolopenandclosed.Resultsare
notalwaysinstant;youmayneedtowaitafewminutesfor
achangeintheaircontrolsettingtohaveane󰀨ectonthe
re.Ifthere’snochange,thenthedraftisn’tstrongenough
yettoletyouclosethedamper,andyou’llneedtoopenitfor
awhilelongerandmanagetherewiththeairinletuntilthe
draftstrengthens.Ifyoukeeptrackofyourburninghabitsand
relatethemtotheire󰀨ectsonthestove’soperation,you’llbe
rewardedwithgoodperformanceandasafesystem.
Conclusion: Wood-burningisanartratherthanascience.
Oncethestoveandchimneysystemareinplace,youcan
onlyvaryyourtechnique,mostlyyourtiming,toachievegood
results.Ifyoukeeptrackofyourburninghabitsandrelatethem
totheire󰀨ectsonthestove’soperation,you’llberewarded
withgoodperformanceandyearsofreliableheating.
H. Important Information
Creosote is a by-product of slow wood-burning. It’s an
organictarthatcancondenseintheueifitispresentinthe
exhaust,slow-moving,andcoolstolessthan290°F(130°C).
Condensedcreosoteisvolatile,andcangeneratechimney
resifitgetshotenough.Allthefeaturesthata󰀨ectchimney
draftalsoa󰀨ectcreosotecondensation-sousewhatever
combinationofinstallationfeaturesandoperationalstepsthat
willencouragegooddraftandminimizecreosoteproduction.
Becauselettingtheexhaustcoolo󰀨andslowdownisoneof
thekeystocreosoteaccumulation,itmakessensetolinea
chimneytomatchthestove’soutletsize,forsafetyreasons
aswellasperformance.Canadianlawrequiresamatching
linertoserveanystoveorinsertventedthroughareplace
chimney;intheUS,theNationalFireProtectionAssociation
(NFPA)recommendsachimneylineriftheueismorethan
threetimesbigger(insquarearea)thantheoutletonthe
stoveorinsert.SomelocalitiesenforcetheNFPAguidelines
aspartoftheirbuildingcodes.
Fuel: Eventhebeststoveinstallationwillnotperformwell
withpoorfuel.Thebestfuelishardwoodthathasair-dried
12-18months.Softwoodburns,butnotaslongashardwood.
‘Green’woodcontainsalotofmoisture;itwillburn,butsome
oftheheatpotentialisusedtoboiltheextramoisturefrom
thewood.Thisreducestheamountofheatthatreachesyour
homeandcancontributetoacreosoteproblem.Thereare
moisturemetersavailableforrewood;youcanalsojudge
yourwoodbyitsappearanceandweight(Moisturecontent
of20%orlessisbest).Ifyougetitgreen,liftapieceandget
asenseofitsweight;itcanloseathirdormoreofitsweight
asitdries.Alsolookattheendsofalog;asitdriesitshrinks
andoftencracks.Themoreweatheredandcrackedapiece
is, the drier it is.
Drywoodburnsreadilywithagoodchimneydraft.Butwith
modernstoves,woodcanbetoodryandtoovolatile.Smoke
andcombustiblegasescan‘gasout’fromthewoodquickly
anddenselyenoughtooverloadthecombustionsystem.If
youheararumblingorroaringnoise(likeapropanetorch)
fromthestove,thatisasignthatthestoveisover-ring.
Back-pu󰀩ngresultswhenthereproducesvolatilegases
fasterthanthechimneydraftpullsthemoutoftherebox.
Thegasesbackupinthereboxuntiltheyareconcentrated
enoughandhotenoughtoignite.Ifyourstoveback-pu󰀨s,
thestoveneedstocooldown.Youshouldopenthedamper
toletthesmokerisetotheuemorequickly,allowmoreair
intotherebox,avoidbigloadsofrewoodandcheckthat
thewoodmoistureisnottoolow.

Vermont Castings • Deant Flexburn 1975 Owner’s Manual_R1 • 2021 - ___ • 08/21 168390-035C
Keep Your Stove Looking New and Working Its Best
Letthereinthestovegooutandallowthestovetocool
completelybeforebeginninganymaintenanceprocedure.
This wood appliance needs periodic inspection and repair for
properoperation.Itisagainstfederalregulationstooperate
thiswoodapplianceinamannerinconsistentwithoperating
instructionsinthismanual.
Care of the Cast Iron Surface
An occasional dusting with a dry rag will keep the painted
castironofyourDeant®Flexburn1975lookingnew.
Thestove’spaintcanbetouchedupasneeded.First,mask
theareas,suchasenameledparts,glass,orhandles,around
thespot to bepainted. Clean thespotwith a wirebrush.
Removethegriddleandsetitaside.Itisnormalforthegriddle
todarkenafteruse.Youcancleanitwithane-bristlewire
brush,orsteelwool.
Then,touchupthestovewithhightemperaturestovepaint.
Applythepaintsparingly;twolightcoatsofpaintarebetter
than a single heavy one.
Care of the Porcelain Enamel Surface
Useadryorslightlydampragorsoftbrushtoremovespills
orstains.Fordi󰀩cultjobsthatrequireacleaningagent,use
onlyakitchenappliancecleanerorpolishrecommendedfor
useonenamelsurfaces.
Ifporcelainenamelbecomeschippedorscratchedduring
use,apply“enamelepoxy”tothedamagedareaandallow
todry.Oncetheepoxyhasdried,sandtheareatoblendwith
surroundingareaandapplyappropriatecolortouch-uppaint.
Allowtodrycompletelybeforeoperatingstove.
A. Cleaning and Replacement of Glass
Mostofthecarbondepositsontheglasswillburno󰀨during
hotres.
However, the ash residue that accumulates on the glass
surfaceshouldberemovedregularlytopreventetching.To
cleantheglass,followthisprocedure:
• Besuretheglassiscompletelycool.
• Cleantheglasswithwateroracleanermadeespeciallyfor
thispurpose.Donotuseabrasivecleaners.Usecleaning
agentssparinglyandbesuretokeepthemo󰀨theouter
surfaces of the stove.
• Rinse the glass thoroughly.
• Drytheglasscompletely.
Replace Broken Glass Immediately
Donotoperateyourstoveiftheglassinthedoorsisdamaged.
Ifyouneedtoreplacetheglass,useonlythehightemperature
5mmceramicglasssuppliedbyVermontCastings.Donot
usesubstitutes.
33 Maintenance
Removing the Glass
1.Removetherightandleftdoorassembliesbyraisingthe
dooruntilthelowerhingepinclearsitshole;then,angle
thedoorbottomslightlyoutwardandpulldowntorelease
the upper hinge pin. Place the doors face down on a
paddedworksurface.Beespeciallycarefulwithenameled
doors.
2.Removethescrewsthatholdtheglassretainerclipsin
place,andremovetheclips.
3.Carefullyliftthebrokenglasspanelfromthedoor.
Installing the Glass
Checkthegasketaroundthewindow;itshouldbesoftand
resilient so that the glass will seal properly against the door.
Replacethegasketifithashardenedorifitiscompressed.
1. Center the glass on the gasket.
2.Securetheglassonbothdoorswiththeretainerclips.
Tightenallscrews,Figure3.1.
3. Replace the doors on the stove.
4.Openandclosethedoorstocheckthattheytandwork
properly.Adjustasnecessary.
Figure 3.1-Explodedviewoftheglassassemblyfortherightdoor.
ST547
door install
11/00
Retainer Clip
GlassPanel
Glass Gasket
Door Gasket
Retainer Clip
Left Door
Right Door (Back Side)

Vermont Castings • Deant Flexburn 1975 Owner’s Manual_R1 • 2021 - ___ • 08/2117 8390-035C
Figure 3.3-Rotatepawland/orremoveatwashertoadjustlatch.
E. Gasket Replacement (as needed)
YourDeant®Flexburn1975usesberglassropegasketsto
makeatightsealbetweensomeparts.Withuse,particularly
onmovingparts,gasketscanbecomebrittleandcompressed
andcanbegintolosetheire󰀨ectiveness.Thesewillneed
periodicreplacement.
Thesizesofreplaceablegasketarelistedbelow,alongwith
their applications.
Gasket Diameter......And the Parts it Seals
5/16” Thegriddletothestovetop(wirereinforcedgasket)
5/16” Thedampertotheupperreback
3/8” Thefrontdoorstothestovefront;andthedoorsto
each other.
3/8” Theashdoortothefrontofthebottompanel
3/16” Theouterglasspanestothedoor
Ifyouneedtochangeagasket,rstobtainanappropriate
replacementfromyourVermontCastings’AuthorizedDealer.
Waituntilthereisoutandthestovehascooled.Besureto
follow the standard safety procedure for working with dusty
materials:wearsafetygogglesandadustmask.
Theprocedureforreplacinggasketsisthesame,regardless
ofthegasketlocation.Followthesesteps:
1. Removetheexistinggasketbygraspinganendandpulling
rmly,Figure3.4.
Tighten the Damper Handle as Needed
Ahandleontheleftsideofthestovecontrolsthedamper.
Thehandle attachesto thedamper rodwith asetscrew.
Periodicallycheckthesetscrewandtightenasnecessary.
C. Front Door Adjustment
Theloaddoorsarefactoryadjustedforclearance,proper
sealing and latch operation. However, the doors can
sometimesshiftintransitorfromuseandmayneedtobe
readjusted.Theadjustment/alignmentprocedureissimple
andonlyrequiresa7/16”wrenchandafewminutes.We
haveprovidedadetailedvideoexplaininghowtoproperly
adjustandalignthedoors.
D. Ash Door Adjustment
Justliketheloaddoors,theashdoorisfactoryadjustedfor
properlyoperationandminimalsag.Ifthedoordoesrequire
adjustmenttominimizesaggingatthelatchside,asimple
adjustmentrequiringonlya7/16”wrenchwillgetthedoor
back into proper alignment. We have provided a detailed
videoexplaininghowtoproperlyadjusttheashdoor.
Note: For video instruction please refer to www.
vermontcastings.com.ClickontheYouTubelinklocated
intheupperrighthandcornernexttothe“Search”bar.
B. Damper Adjustment (as Needed)
The tension on the Deant® Flexburn 1975’s damper is
adjustabletocompensateforcompressionofthegasketthat
sealsthedampertotheupperreback.Toadjustthedamper:
1. Removethegriddle.Loosenthelocknutatthecenterof
thedamper,Figure3.2.
2. Turnthe pressure screw approximately one half turn
clockwise with an Allen wrench provided with your stove.
3. Tighten thelock nut. Prevent thepressurescrew from
turningasyoutightenthenut.Re-testthedamper.
Figure 3.4-Removegasketthencleanchannelwithwirebrush.
►
Figure 3.2-AdjustthedamperwiththeAllenwrench.
ST554
Damper adjustment
11/00
PressureAdjusting
Screw
Allen
Wrench
LockNut
Damper
ST1154
door pawl
Roller
LockNut
SetScrew
ShoulderScrew
HandleStub
FlatWasher

Vermont Castings • Deant Flexburn 1975 Owner’s Manual_R1 • 2021 - ___ • 08/21 188390-035C
Cement
Stove Gasket
Figure 3.5-Layabeadofgasketsiliconeorcementthenpress
gasket in place.
F. The Chimney System
Creosote
YourDeant®Flexburn1975isdesignedtoreducecreosote
build-upsignicantly.However,regularchimneyinspection
andmaintenancemuststillbeperformed.Forsafety,good
stoveperformance,andtoprotectyourchimneyandchimney
connector,inspectyourchimneyandchimneyconnectoron
aregularschedule.Cleanthesystemifnecessary.Failure
tokeepthechimneyandconnectorsystemcleancanresult
inaseriouschimneyre.
6.Startingatoneend,pressthegasketintothechannel,
Figure3.5.Ensureagoodjointwherethegasketmeets
beforetrimminganyexcess.Donotoverlapthegasket
ends or leave ends with ragged edges.
7.Pressthegasketedpartrmlyagainstitsnormalmating
surface to seat the gasket evenly in its channel. Close
and latch the door to do this, or tap other parts with the
rubbermallet(orhammer/blockofwood).
8.Cleananyexcesscementfromaroundthechannel,then
letthecementthatholdsthenewgasketdrythoroughly.
9.Thestove’sdoorsmayneedadjustmentafteryouhave
regasketedthem. Initially, it may require looseningthe
latchtoaccommodatethenewgasket;afterafewweeks,
itmayneedtighteningtocompensateforcompressionof
the new gasket.
All Gasketed Construction Gaskets
Othergasketsformsealsbetweenallothernon-movingparts,
butthesearenotsubjecttothesamewearanddeterioration
asgasketsonmovingparts.Itisunlikelythatyouwillever
need to replace these gaskets unless the involved parts are
disassembledandthenputbacktogether.Ifthisisthecase,
thejobshouldbedoneonlybyaqualiedservicetechnician.
5/16”diametergasketsealsthefollowingparts:
• Thelowerrebacktothebackpanel
• Theleftandrightairplates(innersides)
• Allconnectionsbetweenthestoveplates.
2. Use a wire brush or the tip of a screwdriver to clean
thechannelofanyremainingcementorbitsofgasket.
Removestubborndepositsofcementwithacoldchisel
ifnecessary,Figure3.4.
3.Determine the correct length of the appropriate-sized
gasketbylayingitoutinthechannel.Allowanextra1-2"
(25-50mm),andmarkthespottobecut.
4.Removethegasketfromthechannel,placeitonawood
cuttingsurface,andcutitatthemarkedspotwithautility
knife.
Twisttheendsslightlytokeepthegasketfromunraveling.
5.Layanunbroken1/8"(3mm)beadofsiliconeorcement
inthenewly-cleanedchannel,Figure3.5.
Whenwoodisburnedslowly,itproducestar,organicvapors
andmoisturethatcombinetoformcreosote.Thecreosote
vaporscondenseintherelativelycoolchimneyueofaslow-
burningre.Asaresult,creosoteresidueaccumulatesonthe
uelining.Whenignited,thiscreosotemakesanextremely
hotrewithintheuesystemthatcandamagethechimney
andoverheatadjacentcombustiblematerial.Ifasignicant
layerofcreosotehasaccumulated—1/8”(3mm)ormore
—itshouldberemovedtoreducetheriskofachimneyre.
Youcanneverbetoosafe.Contactyourlocalreauthority
forinformationonwhattodointheeventofachimneyre,
and have a clearly understood plan on how to handle one.
Ifyoudoexperienceachimneyre,actpromptlyto:
• Closethedamperandaircontrollever.
• Get everyone out of the house.
• CalltheFireDepartment.
Inspect the system every two weeks during the heating
seasonaspartofaregularmaintenanceschedule.Toinspect
thechimney, let thestove coolcompletely.Then,using a
mirrorandastronglight,sightupthroughtheuecollarinto
thechimneyue.Ifyoucannotinspecttheuesysteminthis
fashion,thestovemustbedisconnectedtoprovidebetter
viewing access.
Cleanthechimneyusingabrushthesamesizeandshape
astheueliner.Flexibleberglassrodsareusedtorunthe
brushup anddown theliner,causing any depositsto fall
tothebottomofthechimneywheretheycanberemoved
throughtheclean-outdoor.
Cleanthechimneyconnectorbydisconnectingthesections,
takingthemoutside,andremovinganydepositswithasti󰀨
wirebrush.Reinstalltheconnectorsectionsaftercleaning,
beingsuretosecurethejointsbetweenindividualsections
withsheetmetalscrews.
Ifyoucannotinspectorcleanthechimneyyourself,contact
yourlocalVermontCastingsdealeroraprofessionalchimney
sweep.
WARNING
!
Inspect and Clean Chimney Frequently – Under
certain conditions of use, creosote buildup may occur
rapidly.

Vermont Castings • Deant Flexburn 1975 Owner’s Manual_R1 • 2021 - ___ • 08/21 198390-035C
The Chimney Connector
Two Weeks
• Inspect the chimney connector and chimney. Clean if
necessary.
Two Months:
• Inspectthechimneyandchimneyconnector.Payparticular
attentiontothehorizontalrunsofchimneyconnector,and
theelbows.Cleanthesystemifnecessary.
Annual Spring Cleaning:
• Disassemblethechimneyconnectorandtakeitoutdoors
for inspection and cleaning. Replace weak sections of
connector.
• Inspectthechimneyforsignsofdeterioration.Repairsto
amasonrychimneyshouldbemadebyaprofessional
mason.Replacedamagedsections of prefabricated
chimney.Your local VermontCastings dealer or a
chimneysweepcanhelpdeterminewhenreplacement
is necessary.
• Thoroughlycleanthechimney.
G. The Catalytic Element
Maintenance Schedule-The Stove
Daily:
• Clear any ash build-up from around the air holes and
combustionowpathinthelowerreback.
• Ashesshouldberemovedbeforetheyreachthetopof
theashpan.Checkaccumulationatleastonceaday.
• Keeptheareaaroundthestoveclearofanycombustible
materialssuchaswood,furnitureorclothing.
Two Months:
• Check door handle to be sure it is working properly.
Gasketingbecomescompressedafteraperiodoftime.
Adjusthandletightnessifnecessary.
• Check leg bolts and heat shield screws; tighten if
necessary.
Annual Spring Cleaning:
• Check gasketing for wear, and replace if necessary.
• Remove ashes from the ash pan and replace with a
moistureabsorbingmaterial(suchaskittylitter)tokeep
the interior of the stove dry.
• Cleanthedustfromtheinnersidesofbottom,rearorpipe
heatshieldsifyourstoveisequippedwiththem.Clean
surfacesarebetterheatreectorsthandirtysurfaces.
• Touchuptheblackpaint.
• Inspectforandremoveashbuild-upbehindthecombustion
package.Thisshouldbedoneinconjunctionwithannual
cleaningofthechimneyconnector.Inspectthepassage
behindthecombustionpackage(amirrorwillbehelpful)
and vacuum away ash using a exible vacuum hose
insertedinthepassage,Figure3.6.
CAUTION
!
BURN UNTREATED WOOD ONLY. OTHER MATERIALS
SUCH AS WOOD PRESERVATIVES, METALS, FOILS,
COAL, PLASTIC, GARBAGE, SULPHUR, OR OIL, MAY
DAMAGE THE CATALYST.
Thiswoodheatercontainsacatalyticcombustor,whichneeds
periodicinspectionandreplacementforproperoperation.In
theUnitedStatesitisagainstthelawtooperatethiswood
heaterinamannerinconsistentwiththeoperatinginstructions
inthismanual.
Undernormaloperatingconditions,thecatalyticcombustor
shouldremainactivefortwotosixyears(dependingonthe
amountofwoodburned).However,itisimportanttomonitor
thecombustorperiodically to ensure that it is functioning
properly,aswellastodeterminewhenitneedstobereplaced.
Anon-functioningcombustorwillresultinalossofheating
e󰀩ciency,andanincreaseincreosoteandemissions.
Inspection and Cleaning
Inspectthecombustorforyashaccumulationandphysical
damagetwotothreetimesperyear.Cleanthecombustor
as needed.
Therefractorypackagethathousesthecatalyticcombustor
shouldbeinspectedfor a buildupofyashandcleaned
if necessary. This may be done when you examine the
combustor.
Figure 3.6 - Inspectandcleanoutashaccumulationbehindthe
combustionsystem.
ST1162
ash clean out
Clean out any
ashbuildup
Removethesecomponents

Vermont Castings • Deant Flexburn 1975 Owner’s Manual_R1 • 2021 - ___ • 08/21 208390-035C
When to Suspect a Combustor Problem
Thebestwaytoevaluatetheperformanceofyourappliance’s
combustoristoobservetheamountofsmokeleavingthe
chimney—bothwhenthecombustorhas“lighted-o󰀨”and
whenithasnot.Followthesesteps:
• Witharegoingandthecombustorproperlyactivated,with
thedamperclosedtoroutesmokethroughitasdescribed
in the Operation Section, go outside and observe the
smokeleavingthechimney.
• Then,openthestovedamperandonceagaincheckthe
smokeleavingthechimney.
You should see signicantly more smoke when thestove
damperis open and exhaust does not pass through the
combustor.However,becarefulnottoconfusesmokewith
steamfromwetwood.Steamdissipatesintheairquickly;
smokedoesnot.
Ifthistestindicatesaproblem,considerotherpossiblefactors
as well, such as the weather or a change in the quality of
yourfuel.Inwarmweather,draftisweakerthanitisincolder
winterweather,andrescanburnsluggishly.Small,hotres
are a good solution under these conditions.
Burning“green”(insu󰀩cientlyseasoned)woodwillresultin
poorerperformance than burning properly seasoned fuel.
Reloadingwith green wood can also thermal shock the
catalyst, resulting in cracking, or the eventual fallout, of the
ceramichoneycombsubstrate.Youmayhavetorunyour
stovehotter(moreair)toachieveacceptableperformance
using green or wet wood.
Also, consider any changes in your operating routine.
Onceyouhaveruledoutanyotherpossiblecausesfora
declineinperformance,inspectandcleanthecombustorif
necessary. Be sure to protect any surface you use for setting
the stove parts aside.
Also, consider any changes in your operating routine.
Onceyouhaveruledoutanyotherpossiblecausesfora
declineinperformance,inspectandcleanthecombustorif
necessary. Be sure to protect any surface you use for setting
the stove parts aside.
Inspecting the Combustor
Removeaccessdoorandinnerrebrick.Removethecatalytic
combustorbyliftingupandpullingtowardsyou,Figure3.7.
NOTE
Burning“green”(insu󰀩cientlyseasoned)woodwillresult
inpoorerperformancethanburningproperlyseasoned
fuel.Reloadingwithgreenwoodcanalsothermalshock
the catalyst, resulting in cracking, or the eventual fallout, of
themetalhoneycombsubstrate.Youmayhavetorunyour
stovehotter(moreair)toachieveacceptableperformance
using green or wet wood.
Toassurealonglifeforthecombustor,itisrecommended
toservicethecombustoronaregularbasisbasedonthe
amountofuse.Thisproceduretakesaboutve(5)minutes
andrequiresno tools except for a vacuum if cleaning is
necessary.
Cleaning the Combustor
1. Check the combustors honeycomb-like element for a
buildupofyash.Ifanyisevident,takethecombustor
outsideandcleanitbyblowingairgentlythroughit.Do
notpushanythingthroughthehoneycomb;donotuse
compressedairtoclearthepassages.Suchabrasioncan
scrapethethincoatingofplatinum(thecatalyst)o󰀨the
ceramicbase,shorteningthecatalyst’slifeandreducing
itse󰀨ectiveness.
2.Inspecttheelementfordamageordegradation.Although
small hairline cracks will not a󰀨ect performance, the
element should be essentially intact. If the element is
brokenin piecesor hassections missing,it should be
replaced. Call your local Vermont CastingsAuthorized
Dealerforareplacementelement.
3.Iftheelementisingoodconditionandclean,re-installit
inthestoveandreplacetherefractoryinnerrebackand
access door.
Operate the stove in your usual manner for two weeks,
inspectingthechimneyandthechimneyconnectorfrequently
during this period.
If creosote does not build up as fast, it is likely that the
performance change was caused by y ash deposits on
thecatalyticelement.However,continuetheinspectionsof
thechimneysystemforafewweekstoensurethatproper
performancecontinues.
Ifyoucontinuetonda signicantcreosotebuildup or if
you continue to see excessive smoke from the chimney,
thecatalyticelementwillneedtobereplaced.Contactyour
nearestVermontCastings’AuthorizedDealerforinformation
aboutareplacementelement.
NOTE: Use only the replacement catalyst supplied by a
VermontCastingsdealer.
Figure 3.7-Inspectthecatalyticcombustor.
ST1180
catalyst access
Catalyst
Access Door
InnerFireback