CFM AIR TIGHT WOOD STOVE User manual

OWNERS MANUAL
HIGH EFFICIENCY
AIR TIGHT WOOD STOVE
SAFETY NOTICE
IF THIS WOOD BURNING APPLIANCE IS NOT PROPERLY
INSTALLED, A HOUSE FIRE MAY RESULT.
FOR YOUR SAFETY, FOLLOW THE INSTALLATION
DIRECTIONS.
CONTACT LOCAL BUILDING OR FIRE OFFICIALS ABOUT
RESTRICTIONS AND INSTALLATION INSPECTION
REQUIREMENTS IN YOUR AREA.
THIS UNIT IS NOT MOBILE HOME APPROVED.
SAVE THIS MANUAL FOR FUTURE REFERENCE
6" FLUE REQUIRED
made in
CANADA
CFM Corporation

3
CAUTION
Afterreadingtheseinstructions,ifyouhaveanydoubtaboutyourabilitytocompleteyourinstallationina
professional like manner you should obtain the services of an installer versed in all aspects as to the
correctand safe installation. Do not usetemporarymakeshiftcompromises during installation.
BEFORE INSTALLATION OF YOUR APPLIANCE
1. HOT WHILE IN OPERATION. KEEP CHILDREN, CLOTHING AND FURNITURE AWAY. CONTACT
MAY CAUSE SKIN BURNS.
2. DO NOT BURN GARBAGE OR FLAMMABLE FLUIDS.
3. Checkwith the building inspector’sofficefor compliance with local codes; a permit maybe required.
4. Thisappliancerequiresamasonryorprefabricated chimneylistedtoULCS629 (Canada)andUl103ht
(U.S.)Sizedcorrectly.
5. A 6" (152mm) diameter flue is required for proper performance.
6. Alwaysconnect this unitto a chimneyandNEVER ventto another room orinside a building.
7. DO NOT connectto any duct worktowhich another appliance isconnectedsuch as a furnace.
8. DO NOT connectthisunitto a chimney flue serving another appliance.
9. DO NOT USE CHEMICALS OR FLUIDS TO START THE FIRE.
10.Theconnector pipe and chimney shouldbe inspected periodically and cleanedifnecessary.
11. Remember the clearance distances when you place furniture or other objects within the area. DO
NOT storewood,flammable liquids or othercombustible materials too closeto the unit.
12. Contactyourlocalmunicipalorprovincialfireauthorityforinformationonhowtohandleachimneyfire.
Haveaclearlyunderstood plan to handle achimneyfire.Intheeventofachimney fire, turn air control
to closed position and CALL THE FIRE DEPARTMENT.
13. DO NOT tamperwithcombustionair control beyond normal adjustment.
14. Oncetherequireddrawisobtained, operate only with doors closed andopendoorsslowlywhen re-
fueling. (Thiswillreduceoreliminatesmoke from entering the room).
15. DO NOT installtheseunitsin a mobile home or trailer.These units are NOT mobile homeapproved.

4
OPERATION
WHY THE CORRECT FLUE SIZE IS IMPORTANT - 6"
Draftisthe force whichmovesairfromtheapplianceup through the chimney. The amountofdraftinyour
chimneydependsonthe length of the chimney,localgeography,nearbyobstructions, and other factors.
Toomuchdraft may causeexcessive temperatures in theappliance. An uncontrolled burnor a glowing
red part or chimney connector indicates excessive draft. Inadequate draft may cause back puffing into
theroomand“plugging”ofthe chimney and/or cause the appliance toleaksmokeintothe room through
applianceandchimneyconnectorjoints.
Today’ssolid fuel appliancesaremuchmoreefficientthaninthepast. Theunitsare designed togiveyou
controlledcombustion,aswellasmaximumheattransfer, usinglessfueltodoso.
Thedesignofyournewapplianceissuchthattheexhaust “smoke” is now at lower temperatures than in
thepast,thereforerequiringproperchimneysizetogiveadequatedraft. If your chimney is too large, the
heatingappliancewillhaveadifficulttimetoraisethe“chimney flue” temperature to give adequate draft,
thereforecausinga smoke back up, poorburn, or both.
Should you experience such a problem call in a local chimney expert.
Withthe doorclosed,therateof burningisregulatedbythe amountofairallowedto entertheunitthrough
theaircontrol. With experience you will beable to set the controlforheat and burning timedesired.
Attemptstoachievehigher output rates that exceedheaterdesignspecificationscanresultinpermanent
damageto the heater. The recommended wood load is level with the top of the firebricks. Overloading
maypreventsufficientairenteringtheheatertoproperlyfuelthefire.
Donottamperwithcombustionaircontrolbeyondthenormaladjustment capacity.
Operatethisheateronlywiththedoorclosed.
OPTIONALBLOWER:MODELS31105
120 VOLTS, 60Hz, 0.75 AMPS, 2900 RPM
DANGER: RISKOFELECTRICSHOCK. DISCONNECTPOWERBEFORESERVICINGUNIT.
IMPORTANT: FOROPTIMUM HEATERPERFORMANCE AT“LOW”BURNRATE,OPERATETHEFANATLOW SPEED.
ALWAYS PROVIDE A SOURCE OF FRESH AIR INTO THE ROOM WHERE THE UNIT IS
INSTALLED. FAILURE TO DO SO MAY RESULT IN AIR STARVATION OF OTHER FUEL
BURNING APPLIANCES AND THE POSSIBLE DEVELOPMENT OF HAZARDOUS
CONDITIONS.
THIS HEATER IS EXTREMELY HOT WHILE IN OPERATION. SERIOUS BURNS CAN RESULT
FROM CONTACT. CAUTION SHOULD BE OBSERVED ESPECIALLY WHEN CHILDREN ARE
PRESENT.

5
INSTALLATION
1. Removeallparts from inside thestove body.
2. Select the proper location for the stove. These appliances must not be installed any closer than the
minimumclearancetocombustible materials shown in FigureA(ondiagram sheet). The stove must be
installedona non combustible surface asshown in Figure A (ondiagramsheet).
3. If non combustible materials have been installed on the walls, obtain the minimum clearances from
eitherthemanufacturerofthesematerials or the local building inspectors office.
4. Installtherefractory bricks (see Figure Bon diagram sheet).
5. InstallthestovepipeINSIDEthefluecollaronthetopofthestovebetweenthestoveandchimney.
6. DO NOT use a grate to elevate the fire.
STOVE PIPE
1. Aclearance of18inches(457mm)between thestovepipeandcombustiblematerials mayberequired.
Checkwithauthoritieshavingjurisdictioninyourarea.
2. Allpipesections must be connectedwith the male end(crimped end) toward thestove.
3. Fasten the stove pipe to the flue collar by the use of three sheet metal screws. Do the same at each
additionaljointto make the entireinstallation rigid.
4. Maintaintherequireddiameterfluefor the entire installation.
5. If you are connecting the stove to an old masonry flue, be sure to have it inspected for cracks and
generalcondition. Resizingwith a stainless steel linermay be required.
6. Itisrecommendedthat no more than two90degreebendsbeusedinthestovepipe installation. More
thantwo 90 degree bendsmay decrease theamount of draw andpossibly cause smokespillage.
7. A damper is not required in this installation. Remove damper plate in the chimney or secure in the
OPEN position.
8. Singlewallflue pipe assemblies mustnot exceed 10 feet(3 metres) in overalllength.
FAILURE TO FOLLOW THE MINIMUM CLEARANCE REQUIREMENTS MAY RESULT IN AN
UNSAFE INSTALLATION.

6
Floor Protector
Installation on a Concrete Floor
Anappliancemounted on a concrete floordoes not require floor protection.
Carpetingandanyothercombustiblematerial shall not cover the Floor Protector.
Ifacombustible surface isappliedtotheconcretefloor, aclearancemustbemaintainedequivalentto the
areareserved for the floorprotector. Seediagram below.
Installation on a Combustible Floor
Ifthe applianceistobe installedonacombustiblefloororacombustiblefloorcovering,itmustbe installed
ona3/8”(10mm)thicknon-combustiblemillboardfloorprotectorordurableequivalent. The pad must be
installed beneath the appliance extending 18”(457mm)in Canada, 16”(406mm) in the U.S. on any side
equipped with a door, and 8”(203mm) on all other sides. In the U.S. the pad must cover any horizontal
chimneyconnectorrunsandextend2”(51mm) beyond each side.
Agroutedceramic floor-tile surface installedper local building codeis considered a durableequivalent.
Wall Line Chimney Connector
Floor Protector
Door Side of
Appliance
2” (51mm) 2” (51mm)
8” (203mm)
8” (203mm) 8” (203mm)
*18” (457mm)
**16” (406mm)
*CANADA
** UNITED STATES

7
REFER TO CHIMNEY AND CHIMNEY CONNECTOR MANUFACTURER’S INSTRUCTIONS
CHIMNEY
CONTACTYOURLOCALBUILDINGAUTHORITY
FORAPPROVEDMETHODSOF INSTALLATION
1. This appliance requires a masonry or pre-
manufactured chimney listed to ULC S629
(Canada)andUL103HT(USA)sizedcorrectly.
2. If a masonry chimney is used it is advisable to
haveyourchimneyinspectedforcracks and check
the general condition before you install your unit.
Relining may be required to reduce flue diameter
totheappropriatefunctionalsize.
3. Tohelpensureagooddraft,thetopofthechimney
should be at least 3 feet (914mm) above the point
of penetration through the roof, and be at least 2
(610mm)feethigherthananypointoftheroofwithin
10feet (3M).
4. The chimney connector shall not pass through
anattic,roofspace,closet,concealedspace,floor,
ceiling, wall, or any partition of combustible
construction.
5. The minimum overall height of your chimney
shouldbe15feet (5M) from the floor.
6. Do not use makeshift compromises during
installation.
OPERATION
Donotuse a grate orelevate fire. Build wood firedirectly on hearth. When thestove is used forthe first
timethesolventsin the paint will smokeoff. WOOD
Thisheaterisdesignedtoburn natural wood only. Higher efficiencyandloweremissionsgenerallyresult
whenburningairdriedseasonedhardwood,ascompared tosoftwoodor togreenorfreshlycuthardwood.
Only use dry seasoned wood. Green wood, besides burning at only 60 percent of the fuel value of dry
wood,depositscreosote on the inside ofyour stove and along thechimney. Thiscancause an extreme
dangerofchimney fire. To becalled “seasoned”, wood must bedriedfor a year. Regardless of whether
the wood is green or seasoned, it should be stored in a well-sheltered, ventilated area to allow proper
drying during the year to come. Wood should be stored beyond recommended clearance from
combustibles.
DO NOT BURN:
* Treated Wood *Solvents *Trash * Coal
* Garbage * Cardboard * Coloured Papers
3FT(1M) MIN
FROMROOF
PENETRATION
2FT(610mm)HIGHER
THATNEARESTPOINT
OFROOF WITHIN10FT
(3M)
MINIMUMOVERALL
HEIGHTFROM
FLOOR15FT (5M)

8
INSTRUCTIONS FOR FIRST BURN - CURING THE STOVE PAINT
Your stovehasbeenpaintedwiththehighest qualitystovepaintandhasspecialbreak-inprocedures.The
heatgeneratedbythenormaloperationofthestove,willserve to harden the paint.
Ventilatethehouseduringthefirstthreetimesthestove isused.Thepaintonthestove willgiveoff smoke,
carbon dioxide and an odor. Without adequate ventilation, concentrations of smoke could irritate, or be
upsetting. Open doors and windows and use a fan if necessary. After the initial burns the paint will be
curedandthere should be no moresmoke.
Eachoftheinitialburnsshould be conducted as follows:
A) The first and second burns should be at approximately 250 deg F (120 deg C) for approximately 20
minutes.
B)Thethirdburn should be between 500degF(260to370degC)for at least 45 minutes. Theimportant
factisthe paint should be curedslowly. Avoid hot firesduringthe curing process.
Duringthecuringprocessthepaint will be gummy. Once cured the paint willremainhard.
Itisnormaltoseeflat spots on painted surfaces of thestove. Theflatspotson the paint surface indicate
thehottersurfacesofthestove, and is caused by the heatradiatingthroughthepaint.
Itisalsoexpectedthatshinyspotscausedbyfrictionfromthepackagingmaterials,willdisappearduring
thecuringofthe stove.
SO:
1) RemembertoVentilatewell.
2)Allowthestove to cure before burningforlongperiods at high temperatures.
3)Flatspots on the paintedsurfaces are normal.
4)Shinyspotsonthepaint surface before burning is normal.
5)Callyourdealerifyouhaveanyquestions.
BUILDING A FIRE
1. Openinletaircontrolfully.
2. Placeasmall amount of crumpledpaper in the stove.
3. Cover the paper with a generous amount of kindling in a teepee fashion and a few small pieces of
wood.
4. Ignitethepaper and close door. Iffire dies down substantially,opendoorslightly.
5. Add larger pieces of wood as the fire progresses being careful not to overload. Do not fill firebox
beyond firebrick area. An ideal coal bed of 1" to 2" should be established to achieve optimum
performance.
6. This unit is designed to function most effectively when air is allowed to circulate to all areas of the
firebox. An ideal means of achieving this is to rake a slight (1" to 2" wide) trough in the centre of the
coalbed from frontto back priorto loading thefuel.
7. Once fuel has been loaded, close door and open air inlet control fully until fire is well established
(approx.10minutes)beingcarefulnot to overfire.
8. Readjust air inlet control to desired burn rate. If excessive smoke fills firebox, open air inlet control
slightly until flames resume and wood is sufficiently ignited. While a basic rule of thumb is “closed -
low”,“1/2way- medium” and “fully open-high”moreinformationmaybeavailableon the insert sheet
relatingtoyourspecificunit.
9. Whenrefuelling,adjustaircontrolto the fully open position. When fire brightens,slowlyandcarefully
openthedoor. This procedurewill prevent gases fromigniting causing smoke andflame spillage.
10. Addfuelbeing careful not tooverload.

9
GLASS CARE
Thefollowinguseandsafetytips should be observed:
1. Inspect the glass regularly for cracks and breaks. If you detect a crack or break, extinguish the fire
immediately,andcontactyourdealerforreplacement.
2. Do not slam door or otherwise impact the glass. When closing doors, make sure that logs or other
objectstonot protrude and impactthe glass.
3. Donotcleantheglasswith materials which may scratch (or otherwisedamage)theglass. Scratches
onthe glass can developinto cracks orbreaks.
4. Neverattempttocleantheglasswhileunitishot. Ifthedepositisnotveryheavy,normalglasscleaners
are adequate with a plain, non-abrasive scouring pad. Heavier deposits may be removed with the
useofareadily available oven cleaner.
5. Neverputsubstanceswhich can ignite explosively intheunitsince even small explosions inconfined
areascanblow out the glass.
6. Thisunit has anairwash system, designedto reduce depositson glass.
GASKET REPLACEMENT
Afterextensiveuse, the sealing material whichprovides glass and door sealmayneed to be replacedif
it fails to sustain its resilience. Inspect glass and door seal periodically to ensure for proper seal. If
gaskets become frayed or worn, replace immediately. Contact your dealer for approved replacement
parts.
Thefollowingstepsshouldbefollowed for glass gasket replacement:
1. Ensureapplianceis not in operation andis thoroughly cooled.
2. Removescrew and glassclip (see insertsheet specific toyour appliance).
3. Lift glass out from glass clip.
4. Removeold gasket andclean glass.
5. Replacenewgasket starting at the bottomof glass working along edges,beingsure to centre gasket
channelonglass.
6. Trim to length and butt ends together.
7. Replaceglass in door, being surenot to over-tightenscrew and clip.
Thefollowingstepsshould be followed for doorgasketreplacement:
1. Ensureapplianceis not in operation andis thoroughly cooled.
2. Removeolddoor gasket and clean channel.
3. Usinganapprovedhigh temperature gasket cement, applyathincoat in bottom of channel.
4. Startingathingeside of door,workintochannel around door unit, endbuttandtrim to length.
5. Closedoorand allow three tofour hours for cementto set before restartingappliance.
NEVER USE GASOLINE, GASOLINE-TYPE LANTERN FUEL, KEROSENE, CHARCOAL
LIGHTER FLUID, OR SIMILAR LIQUIDS TO START OR ‘FRESHEN UP’ A FIRE IN THIS
HEATER. KEEP ALL SUCH LIQUIDS WELL AWAY FROM THE HEATER WHILE IT IS IN
USE.
REPLACE GLASS ONLY WITH HIGH TEMPERATURE ROBAX PYROCERAM OF THE
PROPER SIZE AND THICKNESS

10
CREOSOTE
Whenwoodisburned slowly, it produces tar andotherorganicvapours. Thesecombinewithmoistureto
formcreosote. Creosotevapourscondenseinthe relatively cool chimney flue of aslow-burningfire. As
aresult, creosoteresidueaccumulatesonthefluelining. When ignited,thiscreosotemakesanextremely
hotfire. Thechimneyshouldbeinspected regularly during the heating season to determine if acreosote
build-up has accumulated. If this is the case, the creosote should be removed to reduce the risk of
chimneyfire.
WAYS TO PREVENT AND KEEP UNIT FREE OF CREOSOTE
1. Burn with air control open for several minutes at numerous intervals throughout the day during the
heatingseason,beingcareful not to over-fire unit. Thisremovestheslight film of creosote accumulated
duringlowburnperiods.
2. Burn stove with draft control wide open for several minutes every time you apply fresh wood. This
allows wood to achieve the charcoal stage faster and burns wood vapours which might otherwise be
depositedwithinthesystem.
3. BURN ONLY SEASONED WOOD. Avoid burning wet or green wood. Seasoned wood has been
driedfor at least oneyear.
4. Asmall hot fire ispreferable to alarge smouldering one thatcan deposit creosotewithin the system.
5. Establisharoutineforthefuel,woodburner andfiringtechnique. Check dailyforcreosotebuild-upuntil
experience shows how often you need to clean to be safe. Be aware that the hotter the fire, the less
creosote is deposited and weekly cleanings may be necessary in mild weather even though monthly
cleaningsmay beenoughinthecoldest months. Contactyourlocalmunicipalauthority forinformationon
howtohandleachimneyfire.Haveaclearlyunderstoodplantohandleachimneylire.
ASH DISPOSAL
This unit features a convenient ash lip for easy removal of ash. During constant use, ashes should be
removed every few days, or whenever ashes get to three to four inches deep in the firebox. Remove
ashesonlywhen thefirehasdieddownand theasheshavecooled,asin the morning. Eventhen,expect
tofind a few hotembers.
Ashesshouldbeplacedina metal container with a tight-fitting lid. Theclosedcontainerofashes should
beplacedon anon-combustiblefloororonthe ground,wellawayfromallcombustible materials, pending
finaldisposal. Iftheashesaredisposedofbyburialinsoil or otherwise locally dispersed, they should be
retainedintheclosedcontaineruntilallcindershavethoroughlycooled. Otherwasteshouldnotbeplaced
intheash container.
WARNING: Things to remember in case of chimney fire:
1. CLOSE DRAFT CONTROL. 2. CALL THE FIRE DEPARTMENT.

11
IMPORTANT
HELPFUL HINTS WORTH REPEATING
1) What is the correct way to start a fire?
a) Youwillneed smallpiecesofdrywood (kindling)andpaper. Useonlynewspaperor paperthathasnot
beencoatedorhadunknownmaterialsgluedorappliedtoit. Never use coated (typically advertising
flyers)orcolouredpaper.
b) Openthe door of thewood stove.
c) Crumple several pieces of paper and place them in the centre of the firebox and directly on to the
firebricksof the wood stove. Neveruse a grateto elevate the fire.
d) Placesmall pieces of dry wood (kindling) over thepaper in a “Teepee” manner. This allows for good
aircirculation,which is critical forgood combustion.
e) Light the crumpled paper in 2 or 3 locations. Note: It is important to heat the air in the stovepipe for
drafttostart.
f) Fullyopentheaircontrolof the wood stove and close the door until itisslightlyopen,allowingformuch
needed air to be introduced into the fire box. Never leave the door fully open as sparks from the
kindlingmay occurcausinginjury. Asthefire beginstoburnthekindling,someadditionalkindlingmay
beneeded to sustain the fire. DO NOT addmore paper after the fire has started.
g) Oncethe kindling has startedto burn, startby adding some ofyour smaller piecesof seasoned (dry)
firewood. Note:Addinglarge pieces at theearly stages will onlyserve to smother thefire. Continue
addingsmallpiecesof seasoned (dry) firewood, keepingthedoorslightlyopenuntileachpiecestarts
toignite. Rememberto always open the doorslowly between placing wood intothefire.
h) Oncethewoodhasstartedto ignite and the smoke has reduced, close the woodstovedoorfully. The
reductionof smoke,isagood indicationthatthedraftinthechimneyhasstartedandgoodcombustion
isnowpossible. Largerpiecesofseasoned (dry) firewood can now be added when there issufficient
spacein the firebox. Adjust theair control settingto desired setting.
I) Note:Thelowertheaircontrolsettingthelongertheburn time of your firewood.
2) What type of wood is best to use as Firewood?
Dryseasonedhardwood shouldbeused. Avoidgreenunseasonedwood. Green wood,besidesburning
atonly60 percentofthefuelvalueof dryseasonedwood,willdepositcreosote on theinsideofyourstove
andalongtheinsideofyourchimney.
3) What does dry seasoned wood mean, and what is considered hardwood?
Wood that has been dried for a period of one year in a well-ventilated and sheltered area would be
considered dry seasoned wood. Hardwoods are generally from slow growth trees (Example: Oak and
Fir). Softwoodsaregenerally from fast growth trees.(Example: Pine and Spruce)
4) Will following the above listed steps for starting a fire result in perfect results all the time?
Thequickansweris most of the time. Therearemanyvariables that may affect yoursuccessratewhen
staringa fire. Mostofthosevariablesand howtodealwiththem willbelearnedthroughexperience. Your
abilitytostartagoodfire will significantly increase with time andpatience. Someofthereasons for poor
stoveperformancewillbecoveredin the next section of these instructions.
5. Why can’t I get the fire lit?
Damporwetwood and poor draft arethemainreasons for poor results instartingafire. Always use dry
seasonedwoodforyourfire. Evenwooddriedfortwoyearswillbedifficulttoignite,ifithasbecomewet.
6) Why is there always a large quantity of thick black smoke present in the firebox?
Alarge quantity of thick black smoke in the firebox, is a good indication that the draft is poor.