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20

Defiant Woodburning Stove

30003841

A stove is part of a system, which includes the chimney, 
the operator, the fuel, and the home. The other parts of 
the system will affect how well the stove works. When 
there is a good match between all the parts, the system 
works well. 
Wood stove or insert operation depends on natural 
(unforced) draft. Natural draft occurs when the smoke 
is hotter (and therefore lighter) than the outdoor air at 
the top of the chimney. The bigger the temperature 
difference, the stronger the draft. As the smoke rises 
from the chimney it provides suction or ‘draw’ that pulls 
air into the stove for combustion. A slow, lazy fire with 
the stove’s air inlets fully open indicates a weak draft. 
A brisk fire, supported only by air entering the stove 
through the normal inlets, indicates a good draft. The 
stove’s air inlets are passive; they regulate how much 
air can  enter the stove, but they don’t move air into it. 
Depending on the features of your installation - steel 
or masonry chimney, inside or outside the house, 
matched to the stove’s outlet or oversized - your 
system may warm up quickly, or it may take a while to 
warm up and operate well. With an ‘airtight’ stove, one 
which restricts the amount of air getting into the firebox, 
the chimney must keep the smoke warm all the way to 
the outdoors in order for the stove to work well. Some 
chimneys do this better than others. Here’s a list of 
features and their effects.

Masonry Chimney

Masonry is a traditional material for chimneys, but it 
can perform poorly when it serves an ‘airtight’ stove. 
Masonry is a very effective ‘heat sink’ - it absorbs a lot 
of heat. It can cool the smoke enough to diminish draft. 
The bigger the chimney, the longer it  takes to warm up. 
It’s often very difficult to warm up an outdoor masonry 
chimney, especially an oversized one, and keep it 
warm enough to maintain an adequate draft. 

Steel Chimney

Most factory-made steel chimneys have a layer of 
insulation around the inner flue. This insulation keeps 
the smoke warm. The insulation is less dense than ma-
sonry, so a steel  chimney warms up more quickly than 
a masonry chimney. Steel doesn’t have the good looks 
of masonry, but it performs much better. 

Indoor/Outdoor Location

Because the chimney must keep the smoke warm, it’s 
best to locate it inside the house. This uses the house 
as insulation for the flue and allows some heat release 
into the home. An indoor chimney won’t lose its heat 
to the outdoors, so it takes less heat from the stove to 
heat it up and keep it warm.

Chimney Height

The common wisdom tells us that a taller flue draws 
better than a short one. This isn’t necessarily so. If a 
chimney is tall enough to meet the safety requirements 
of the 2/3/10 foot rule, then adding more height isn’t the 
right answer to a draft problem. In fact it could make the 
problem worse, by adding more mass to the chimney 
system, which the smoke must warm up, at the far end 
from the heat source (the stove). Don’t make a chimney 
taller unless you must to meet the safety rules, or un-
less there’s some nearby feature causing a downdraft. 
Even then, there are downdraft-preventing chimney 
caps available, which are probably the smarter choice. 

Flue Sizing 

The inside size of a chimney for an ‘airtight’ stove 
should match the size of the stove’s flue outlet. When 
a chimney serves an airtight stove, more is not better; 
in fact, it can be a disadvantage. Hot gases lose heat 
through expansion; if we vent a stove with a six-inch 
flue collar (28 square inch area) into a 10 x 10” flue, 
the gases expand to over three times their original size. 
This cools the gases, which weakens draft strength. If 
an oversized flue is also outside the house, the heat it 
absorbs gets transferred to the outdoor air and the flue 
usually stays cool. 
It’s common for a masonry flue, especially one serving 
a fireplace, to be oversized for the stove. It can take 
quite a while to warm up such a flue, and the results 
can be disappointing. The best solution to an oversized 
flue is an insulated steel chimney liner, the same diam-
eter as the stove or insert’s flue outlet; the liner keeps 
the smoke warm, and the result is a stronger draft. An 
uninsulated liner is a second choice - the liner keeps 
the smoke restricted to its original size, but the smoke 
still must warm up the air around the liner. This makes 
the warm-up process take longer.

Pipe & Chimney Layout

Every turn the smoke must take as it travels to the 
chimney top will slow it down. The ideal pipe and chim-
ney layout is straight up from the stove, to a completely 
straight chimney. If you’re starting from scratch, use this 
layout if possible. If the stovepipe must elbow to enter a 
chimney, locate the thimble about midway between the 
stove top and the ceiling. This achieves several goals: 
it lets the smoke speed up before it must turn, it leaves 
some pipe in the room for heat transfer, and it gives you 
long-term flexibility for installing a different stove without 
relocating the thimble. 

Draft  Management

Содержание Defiant 1945CE

Страница 1: ...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...

Страница 2: ...of warmth beauty and comfort in your home At CFM Corporation we share that joy and appreciation for the hearth We assure you that your cast iron Vermont Castings stove has been made with the utmost c...

Страница 3: ...rior using new technologies for ef cient combustion Americans purchased over a quarter million De ants as they rediscovered the common sense of heating with wood a home grown fuel with none of the pol...

Страница 4: ...N T 826 mm 32 724 mm 28 788 mm 31 96 mm 3 546 mm 21 489 mm 19 464 mm 18 546 mm 21 3841 Defiant EU dimensions 7 06 768 mm 30 D E F I A N T 591 mm 23 489 mm 19 654 mm 25 C L 737 mm 29 Flue exit position...

Страница 5: ...ng a chimney or house re Follow all instruc tions exactly and do not allow makeshift compro mises to endanger property and personal safety All local regulations including those referring to national a...

Страница 6: ...t be operated with the front doors open Whatever the ue collar size an De ant may be vented into larger chimneys as well However chimneys with liners larger than 203 x 305 mm 8 x 12 may experience rap...

Страница 7: ...Flue Gas Direction Toward Stove ST242 Fig 4 Chimney connector ue collar with three 10 x 1 2 sheet metal screws Lift off the griddle and shield the stove s surface between the griddle opening and the...

Страница 8: ...above the replace opening Seal This Off ST243 thinble connection 12 13 99 djt Thimble Sleeve Chimney Connector Flue Keep sleeve end ush with ue tile ST243 Fig 6 The thimble made of either ceramic or...

Страница 9: ...NOT CONNECT THE DEFIANT TO ANY AIR DIS TRIBUTION DUCT OR SYSTEM ST245 fireplace flex connector 12 99 Flexible Connector Mantel Shield Fireplace Adapter Kit Positive Connection ST245 Fig 8 Through the...

Страница 10: ...De ant Costructional Hearth Dimensions as below At least 300 mm At least 150 mm or to a suitable heat resistant wall At least 150 mm Hearth Surface Free of Com bustible Material Perimeter should be c...

Страница 11: ...A Minimum distance from stove to movable combus tible materials e g furniture drying clothes etc 1220 mm 48 ST486a Defiant EU Clearance Diagrams 10 06 A B ST486a Fig 11 Minimum clearances D at least 3...

Страница 12: ...g the stove especially across rough surfaces can cause the legs to loosen or even break Storing the Handle Use the removable handle to open or close the doors After using it remove the handle so it wi...

Страница 13: ...ew to attach the damper handle to the damper stub on the left side Attach the Primary Air Thermostat Handle The primary air thermostat handle is the smaller of the two black handles Secure the handle...

Страница 14: ...e stove controls the amount of incoming air for starting maintaining and reviving a re More air entering the stove makes the re burn hotter and faster while less air prolongs the burn at a lower heat...

Страница 15: ...nd 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 East ern red cedar r and redwood These should al...

Страница 16: ...to get quite hot within a few minutes after a re is started the combus tor may stop working or the re may go out if the re dies down immediately as a result of the damper being closed Once the combus...

Страница 17: ...e it is in use 3 Light the newspaper and close the door Gradually build up the re by adding a few 76 127 mm 3 5 di ameter splits If this is one of the rst few break in res let the re burn brightly and...

Страница 18: ...sn t working Note that the catalyst is most likely to glow at its higher temperatures which it reaches when the rebox is in its lower range the catalyst is an after burner and the more waste fuel ther...

Страница 19: ...erial Return the ash pan to its original position in the stove and close and latch the ash door Fig 31 Do not operate the stove with the ash door open This will result in over ring and could cause dam...

Страница 20: ...the home An indoor chimney won t lose its heat to the outdoors so it takes less heat from the stove to heat it up and keep it warm Chimney Height The common wisdom tells us that a taller ue draws bet...

Страница 21: ...sture meters available for rewood you can also judge your wood by its appearance and weight 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...

Страница 22: ...crack a nearby window or door to enable the chimney to pull well that s a sign that you should install an outside air intake to bring combustion air directly to the stove An outside air adapter will a...

Страница 23: ...ss with water or a cleaner made espe cially for this purpose Do not use abrasive cleaners Use cleaning agents sparingly and be sure to keep them off the outer surfaces of the stove Rinse the glass tho...

Страница 24: ...he pressure screw from turning as you tighten the nut Re test the damper Tighten the Damper Handle as Needed A handle on the left side of the stove controls the damper The handle attaches to the dampe...

Страница 25: ...he 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 caref...

Страница 26: ...ing its effectiveness ST558 Inspect Catalytic element 4 11 00 Catalytic Ele ment Catalytic Access Panel ST558 Fig 38 Remove and inspect the catalytic element 5 Inspect the element for damage or degrad...

Страница 27: ...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 gaske...

Страница 28: ...everyone out of the house Call the Fire Department Inspect the system every two weeks during the heat ing season as part of a regular maintenance schedule To inspect the chimney let the stove cool com...

Страница 29: ...alyst is still there it is covered or masked by the contaminant and cannot function To avoid this situation it is important not to burn any thing in your De ant that is a source of these contami nants...

Страница 30: ...roper clearance between chimney and nearby combustibles less than 51 mm 2 check local codes K Loose or leaky cleanout door For a replace F Improper clearance between smoke chamber and framing material...

Страница 31: ...9 85 86 87 70 78 71 88 59 90 52 91 91 CFM Corporation reserves the right to make changes in design materials speci cations prices and discontinue colors and products at any time without notice De ant...

Страница 32: ...rt 1300642 58 Ashpan Bracket 30001908 59 Primary Air Valve Assy 5000024 60 Primary Air Frame3 1307411 61 Primary Air Rod3 1600058 62 Primary Air Valve3 1307412 63 Thermostat Handle Wood 1600660 64 Air...

Страница 33: ...0001612 1320621 30001616 Suede Brown 30002578 30002574 30002573 30002575 30002583 30002580 Vermont Classic Green 30002997 30002993 30002992 30002994 30002991 30002998 Shell Enamel Parts De ant Enamel...

Страница 34: ...34 Defiant Woodburning Stove 30003841...

Страница 35: ...te 3 Date of failure of catalyst 4 Any relevant information or circumstances regarding determina tion of failure 5 In addition the owner must return the failed catalyst Exclusions Limitations 1 This w...

Страница 36: ...CFM Corporation 2695 Meadowvale Blvd Mississauga Ontario Canada L5N 8A3 800 668 5323 www cfmcorp com CFM Corporation...

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