Vermont Castings Defiant 1975 User manual
Homeowner’s Installation
and Operating Manual
For use in the
United States and Canada
30005220 5/12 Rev. 11
0968
Defiant cover
11/00
Nous recommandons que nos appareils de chauffage
au bois soient installés et entretenus apr des
professionnels qui ont été accrédités aux É.-U. par le
National Fireplace Institute® (NFI) comme étant des
spécialistes du NFI en matière d’appareilsde chauffage
au ois, ou qui sont accrédités au Canada
dans le cadre du Programme
de formation technique
en énergie du bois (WETT)
2
Defiant®1975 Non-Catalytic / Catalytic Woodburning Stove
30005220
This manual describes the installation, operation, and maintenance of the Vermont Castings Deant Model 1975 Non-
Catalytic / Catalytic wood burning heater. This heater meets the U.S. Environmental Protection Agency’s emission
limits for wood heaters sold on or after July 1, 1990. Under specic test conditions this heater has been shown to
deliver heat at rates ranging from 8,200 to 33,000 Btu/hr.
The Deant Model #1975 has been tested and is listed by OMNI-Test Laboratories of Portland, Oregon. The test
standards are ANSI/UL-1482 and ANSI/UL-737 for the United States, and ULC S627 for Canada. The Deant is
listed for burning wood only. Do not burn other fuels. The Deant is not approved for use in manufactured (mobile)
homes.
We recommend that you hire a professional installer certied by the Wood Heat Education and Research Foundation
(WHERF) or the Wood Energy Technical Training (WETT) to install your stove, or to advise you on the installation
should you attempt to install it yourself.
Please read this entire manual before you install and use your new stove. Failure to follow instructions may result in
property damage, bodily injury, or even death.
Congratulations on your choice of a Vermont Castings Deant stove. With this purchase you have made a commit-
ment to make the hearth a place of warmth, beauty and comfort in your home. At MHSC, we share that joy and appre-
ciation for the hearth. 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, MHSC products are among the cleanest-burning wood stoves and replaces available today. As an owner of a
Vermont Castings stove, you make a strong statement for pollution-free energy. 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 MHSC, we are equally 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.
They are factory-trained and knowledgeable about every MHSC product. 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 installation and operation of your Vermont Castings Deant. It also
contains useful information on maintenance. Please read the manual thoroughly and keep it as a reference.
Sincerely,
All of Us at MHSC
3
Defiant®1975 Non-Catalytic / Catalytic Woodburning Stove
30005220
Specications ........................................................4
Installation .............................................................5
Clearance Charts.................................................14
Assembly .............................................................18
Operation .............................................................21
Draft Management ...............................................27
Maintenance ........................................................30
The Catalytic Element .........................................34
Replacement Parts ..............................................36
Warranty ..............................................................39
No wood-burning appliance, save for Ben Franklin’s Pennsylvania Fireplace, has a stronger heritage than the Ver-
mont Castings Deant. Named for a 19th-century steamship, the original Vermont Castings Deant Wood Stove came
to epitomize America’s resolve and independence during the Energy Crisis of the 1970s.
The year was 1975. With energy prices going through the roof, without an attractive or efcient wood stove to be
found anywhere, two entrepreneurs set out to create a stove that was both beautiful and highly functional. Finely
crafted from cast iron, the Deant was the rst wood stove to combine an artistically designed exterior with a methodi-
cally engineered interior, using new technologies for efcient combustion.
Americans purchased over a quarter-million Deants, as they rediscovered the common sense of heating with wood,
a home-grown fuel with none of the political and economic entanglements of foreign oil.
Thirteen years later, in 1988, Vermont Castings ‘retired’ the Deant, replacing it with modern wood-burners such as
the Encore. A decade later the Deant was resurrected and updated with aesthetics and features that again led the
industry.
In 2010, the third generation of the Deant maintains the product’s rich tradition by introducing the most advanced
wood-burning stove on the market. The quality and classic look that consumers have come to expect from Vermont
Castings is combined with the latest combustion technology, an innovative design that allows the stove to quickly be
converted to burn in either a catalytic or noncatalytic mode. In a sense, the Deant Model 1975 has been 35 years in
the making.
Due to its signicant role in American history, the original Deant model is in the permanent collection of the Smithso-
nian Institution in our nation’s capitol. Each new purchase of the Deant continues that proud history.
Warming Shelf
#0210 Classic Black
#0211 Biscuit
#0213 Ebony
#0214 Bordeaux
#0217 Brown Majolica
#3265* Outside Air Kit
#3180 Outside Air Adapter
#1907 Firescreen
#1860 6” x 12” Oval Starter Pipe
FK26 Fan Kit
#3190 Connector Pipe Heat Shield
A line of porcelain enamel stove pipe is available in
Biscuit, Bordeaux, Ebony, Brown Majolica colors.
*If you order #3265, you will also need #3180.
Fuels used in gas, wood-
burning or oil red appliances, and the products of
combustion of such fuels, contain chemicals known to
the State of California to cause cancer, birth defects
and other reproductive harm.
California Health & Safety Code Sec. 25249.6
4
Defiant®1975 Non-Catalytic / Catalytic Woodburning Stove
30005220
EPA Emissions rating - Noncatalytic ................ 2.3 g/hr*
Range of heat output - Noncatalytic .......8,200 - 33,000
EPA Emissions rating - Catalytic .................... 1.1 g/hr*
Range of heat output -
Catalytic ........................ 10,000 to 30,300 BTU/hr.*
Peak heat output ................................ 75,000 BTU/hr.**
Area heated .........................Up to 2,400 Square feet***
Fuel length ................................................................25”
Fuel capacity .............................. 70 pounds, hardwood
Loading .....................................................Front and top
Chimney Connector:
for 8” ue collar .................... 8” (203 mm) diameter
Chimney Flue Size:
with 8” Chimney Connector ..8” (203 mm) minimum
with 6” Chimney Connector ..6” (152 mm) minimum
Flue exit position......................................... Top or Rear
Primary Air ......
Manually Set, Thermostatically Maintained
Secondary Air ...............................Fixed, self-regulating
Ash handling system ..................... Removable ash pan
Glass panels ........................ High-temperature ceramic
Weight ............................................... 518 lbs. (235 kg.)
Width (leg to leg) .................................. 32C\,” (822 mm)
Depth (leg to leg) ..................................... 19” (483 mm)
Height to top of ue collar ..................... 29M\,” (759 mm)
*Under specic conditions during EPA emissions test-
ing.
** This value can vary depending on how the stove
is operated, the type and moisture content of the fuel
used, as well as the design, construction and climatic
location of your home. Figures shown are based on
maximum fuel consumption rates obtained under labo-
ratory conditions and on average efciencies.
*** These values are based on operation in building
code-conforming homes under typical winter climate
conditions in New England. If your home is of nonstan-
dard construction (e.g. unusually well insulated, not in-
sulated, built underground, etc.) or if you live in a more
severe or more temperate climate, these gures may
not apply. Since so many variables affect performance
consult your Authorized Dealer to determine realistic
expectations for your home.
Deant 1975 dimensions.
Drawing Not to Scale
DEFIANT
326"
(822 mm)
28(6"
(733 mm)
3156O"
(800 mm)
556"
(130 mm)
19"
(483 mm)
18"
(457 mm)
236M"
(603 mm)
1693
Defiant dimensions
1/02
29(6"
(759 mm)
DEFIANT
236"
(600 mm)
19"
(483 mm)
26"
(660 mm)
C
L
28(6"
(733 mm)
Rear Venting
5
Defiant®1975 Non-Catalytic / Catalytic Woodburning Stove
30005220
Before you begin an installation, be sure that:
• Your stove and chimney connector will be far
enough from combustible material to meet all clear-
ance requirements.
• The oor protector is large enough and is construct-
ed properly to meet all requirements.
• You have all necessary permits from local authori-
ties.
Your local building ofcial is the nal authority for ap-
proving your installation as safe and determining that it
meets local and state codes.
The metal label permanently attached to the back of
every Vermont Castings’ stove indicates that the stove
has been tested to current UL and ULC standards, and
gives the name of the testing laboratory. Clearance
and installation information also is printed on the label.
When the stove is installed according to the information
both on the label and in this manual, local authorities
usually will accept the label as evidence that the instal-
lation meets codes and can be approved.
However, codes vary in different areas. Before starting
the installation, review your plans with the local building
authority. Your local dealer can provide any additional
information needed.
For any unresolved installation issues, refer to the
National Fire Protection Association’s publication
ANSI/NFPA 211 Standard for Chimneys, Fireplaces,
Vents and Solid Fuel Burning Appliances. For Canada,
the equivalent publication is CSA CAN-B365 Installation
Code for Solid Fuel Burning Appliances and Equipment.
These standards are the basis for many national codes.
They are nationally recognized and are accepted by
most local authorities. Your local dealer or your local
building ofcial may have a copy of these regulations.
In some modern, super-insulated homes, there may be
inadequate air supply for combustion because of insuf-
cient air inltration into the building. Such air enters a
home through unsealed cracks and openings. Exhaust
fans in kitchens or bathrooms can compete with the
stove for available air and compound the problem.
When poor draft is caused by a low inltration rate,
opening a ground oor window on the windward side of
the house and near the stove will usually alleviate the
problem.
A better solution is to install a permanent outside air
supply to the stove and/or room. In fact, bringing air
for combustion from outside the home directly to the
air inlet of the stove is required for new construction in
some areas.
Pressure variations within the house do not affect a
stove equipped with an outside air supply, and im-
proved stove performance often results. An Outside Air
Kit for the Deant is available from your local dealer.
Altitude affects chimney performance. When using an
8” oval to 6” ue collar adapter on the Deant, refer
to Figure 1 for suggested chimney heights at various
altitudes. Chimney height should be measured from the
ue collar to the top of the chimney. The recommended
minimum chimney height is 16’ (5 m).
ST491
Chimney height requirements with 6” chimney and/or
chimney connector.
30
25
20
15
0 2000 4000 6000 8000 10000 12000
Height
Altitude
ST491
Defiant
chimney height
11/2/00 djt
6
Defiant®1975 Non-Catalytic / Catalytic Woodburning Stove
30005220
You must connect the Deant to a code-approved
masonry chimney with a ue liner, to a relined masonry
chimney that meets local codes, or to a prefabricated
metal chimney that complies with the requirements
for Type HT chimneys in the Standard for Chimneys,
Factory-Built, Residential Type and Building Heating
Appliance, UL 103. Figure 3 illustrates the two types.
The chimney and chimney connector must be in good
condition and kept clean.
If you use an existing masonry chimney, it must be
inspected to ensure it is in a safe condition before
the stove is installed. Your local professional chimney
sweep, building inspector, or re department ofcial
will be able to inspect the chimney or provide a refer-
ral to someone who can. See “Chimney and Fireplace
hazards”, in the appendix, for particulars.
ST241
chimney types
12/13/99 djt
A prefabricated double-
wall insulated chimney
A tile-lined
masonry
chimney
ST241
Approved chimney types.
2' Min.
2' Min.
3'
Min.
0 To 10'
3'
Min.
0 To 10'
AC617
RLTSKC8
2/11/98
Reference
Point AC617
The 2’-3’10’ Chimney Rule.
The chimney must extend at least 3’ (914 mm) above
the highest point where it passes through or near a
roof, and at least 2’ (610 mm) higher than any part of a
building within 10’ (3 m) horizontally. (Fig. 4)
For proper draft and good performance, any chimney
used with a Deant should extend at least 16’ (5 m)
above the ue collar of the stove.
An inspection of the chimney must conrm that it has
a lining. Do not use an unlined chimney. The chimney
should have no cracks, loose mortar, other signs of
deterioration, and blockage. Repair any defects before
the chimney is used with your stove.
Unused openings in an existing masonry chimney must
be sealed with masonry to the thickness of the chimney
wall, and the chimney liner should be repaired. Open-
ings sealed with pie plates or wallpaper are a hazard
and should be sealed with mortar or refractory cement.
In the event of a chimney re, ames and smoke may
be forced out of these unused thimbles.
The chimney should be thoroughly cleaned before use.
A newly-built masonry chimney must conform to the
standards of your local building code or, in the absence
of a local code, to a recognized national code. Mason-
ry chimneys must be lined, either with code-approved
masonry or pre-cast refractory tiles, stainless steel
pipe, or a code-approved, “poured-in-place” liner. The
chimney’s clean-out door must seal tightly. A loose or
leaky clean-out door can weaken chimney draft, caus-
ing performance problems.
A prefabricated metal chimney must be one tested and
listed for use with solid-fuel burning appliances to the
High-Temperature (H.T.) Chimney Standard UL-103-
1985 (2100°F) for the United States, and High Temper-
ature (650°C) Standard ULC S-629 for Canada.
A Deant with an 8” (203 mm) ue collar is approved
for venting into a masonry chimney with a nominal ue
size of 8” x 8” (203 x 203 mm) or 8” x 12” (203 x 305
mm), and into a round ue with nominal ue size of 8”
(203 mm). A Deant with a 6” (152 mm) ue connector
is approved for venting into a masonry chimney with a
nominal ue size of 8” x 8” (203 x 203 mm), and into a
round ue with nominal ue of 6” (152 mm).
Whatever the ue collar size, a Deant may be vented
into larger chimneys as well. However, chimneys
with liners larger than 8” x 12” (203 x 305 mm) may
experience rapid cooling of smoke and reduction in
draft, especially if the chimneys are located outside the
home. These large chimneys may need to be insulated
or have their ues relined for proper stove performance.
7
Defiant®1975 Non-Catalytic / Catalytic Woodburning Stove
30005220
as guides when you drill 1/8” (3 mm) holes in the
bottom of the next section.
• Fasten the chimney connector to the chimney.
Instructions for various installations follow. Figure 6
illustrates the general layout of chimney connector
parts.
• Be sure the installed stove and chimney connector
are correct dis-
tances from nearby
combustible materi-
als.
Special slip
pipes and thimble
sleeves that form tele-
scoping joints between
sections of chimney
connector are avail-
able to simplify instal-
lations. They often
eliminate the need to
cut individual con-
nector sections. Consult your local dealer about these
special pieces.
Follow the installation instructions of the chimney
manufacturer exactly as you install the chimney. The
manufacturer of the chimney will supply the acces-
sories to support the chimney, either from the roof of
the house, at the ceiling of the room where the stove is
installed, or from an exterior wall.
Special adapters are available from your local dealer
to make the connection between the prefabricated
chimney and the chimney connector. The top of such
adapters attaches directly to the chimney or to the
chimney’s ceiling support package, while the bottom of
the adapter is screwed to the chimney connector.
These adapters are designed so the top end will t out-
side the inner wall of the chimney, and the bottom end
will t inside the rst section of chimney connector.
Both freestanding masonry chimneys and replace ma-
sonry chimneys may be used for your installation.
If the chimney connector must pass through a combus-
tible wall to reach the chimney, follow the recommen-
dations in the Wall Pass-Through section that follows.
The opening through the chimney wall to the ue
(the “breech”) must be lined with either a ceramic or
metal cylinder, called the “thimble”, which is cemented
ST242
Chimney connector
12/13/99 djt
Flue Gas
Direction
Toward
Stove
ST242
Chimney connector.
Accessories to help make the connection between
stainless steel chimney liners and your Deant are
available through your local dealer.
A chimney connector is the single-wall pipe that con-
nects the stove to the chimney. The chimney itself is the
masonry or prefabricated structure that encloses the
ue. Chimney connectors are used only to connect the
stove to the chimney.
Single-wall connectors should be made of 24 gauge
or heavier steel. Do not use galvanized connector; it
cannot withstand the high temperatures that can be
reached by smoke and exhaust gases, and may re-
lease toxic fumes under high heat. The connector may
be 6” (152 mm) or 8 “ (203 mm) in diameter.
If possible, do not pass the chimney connector through
a combustible wall or ceiling. If passage through a com-
bustible wall is unavoidable, refer to the section on Wall
Pass-Throughs. Do not pass the connector through an
attic, a closet or similar concealed space. The whole
connector should be exposed and accessible for in-
spection and cleaning.
In horizontal runs of un shielded chimney connector,
maintain a distance of 30” (762 mm) from the ceiling.
Keep it as short and direct as possible, with no more
than two 90° turns. Slope horizontal runs of connector
upward 1/4” per foot (6mm per meter) going from the
stove toward the chimney. The recommended maxi-
mum length of a horizontal run is 3’ (1 m), and the total
length should be no longer than 8’ (2.4 m). In cathedral
ceiling installations, extend the prefabricated chimney
downward to within 8’ (2.4 m) of the stove. This will help
maintain a good draft by keeping the smoke warm, so
that it rises readily.
Wear gloves and protective eyewear when drilling, cut-
ting or joining sections of chimney connector.
• Begin assembly at the ue collar of the stove. Insert
the rst crimped end into the stove’s ue collar, and
keep each crimped end pointing toward the stove.
(Fig. 5) Using the holes in the ue collar as guides,
drill 1/8” (3 mm) holes in the bottom of the rst sec-
tion of chimney connector and secure it to the 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 front of the ue
collar to protect the nish when you drill the front
hole.
• Fasten each joint between sections of chimney
connector, including telescoping joints, with at least
three (3) sheet metal screws. The pre-drilled holes in
the top of each section of chimney connector serve
8
Defiant®1975 Non-Catalytic / Catalytic Woodburning Stove
30005220
Without a thimble, a suitable length of chimney con-
nector can be extended through the breech to the inner
face of the ue liner, and cemented securely in place.
Additional pieces of connector are then attached with
sheet metal screws.
The chimney connector may be connected to the
chimney above the replace opening or through the
replace.
The Deant may be connected to a chimney above
a replace opening. (Fig. 8) In such installations, the
stove is positioned on the hearth in front of the replace
and the chimney connector rises from the stove top and
then angles ninety degrees back into the chimney. The
chimney liner should extend to the point at which the
chimney connector enters the chimney.
ST244
Plymouth
fplc over mantel
12/99
DEFIANT
*
*
Check These
Clearances
Mantel
ST244a
In this installation, the chimney connector attaches to
the chimney 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
The thimble, made of either ceramic or metal, must be
cemented securely in place.
securely in place. Most chimney breeches incorporate
thimbles, but the t must be snug and the joint between
the thimble and the chimney wall must be cemented
rmly.
A special piece called the “thimble sleeve,” slightly
smaller in diameter than standard connectors and
most thimbles, will facilitate the removal of the chimney
connector system for inspection and cleaning. (Fig. 7)
Thimble sleeves are available from your local dealer.
To install a thimble sleeve, slide it into the breech until
it is ush with the inner ue wall. Do not extend it into
the actual ue passage, as this could interfere with the
draft.
ST492
Defiant
freestanding
installation
11/00
Chimney
Elbow
Slip Pipe
Standard
Connector
Oval to
Round Adapter
Flue Collar
Thimble
Flue In-
ner
Flue
ST492
An exploded view of the chimney connection in a free-
standing masonry installation.
If the chimney connector in your installation enters the
chimney above a replace, follow all the guidelines
mentioned above for freestanding installations. In addi-
tion, give special consideration to the following points:
• Check the clearance between the stove and the
chimney connector, and any combustible trim or the
mantel.
• Check the clearance between the chimney connec-
tor and the ceiling. The clearance should be at least
30” (762 mm) with unshielded connectors. Consult
the clearance charts for other installation options.
• The replace damper must be sealed to prevent
room air from escaping up the ue. However, it
The thimble sleeve should protrude 1-2” (25-50 mm)
into the room. Use furnace cement and thin gasketing
to seal the sleeve in place in the thimble. Secure the
chimney connector to the outer end of the sleeve with
sheet metal screws.
9
Defiant®1975 Non-Catalytic / Catalytic Woodburning Stove
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ST245
fireplace
flex connector
12/99
Flexible
Connector
Mantel Shield
Fireplace Adapter Kit
“Positive Connection”
ST245
Through the replace installation.
DEF
IA
N
ST493
Brick pass thru
11/00
Wall Stud
Chimney
Connector
Floor Protec-
tion
12” of
Noncombustible
Material
ST493
An approved wall pass-through for the United States.
must be possible to re-open the damper to inspect
or clean the chimney.
If your replace opening height is at least 29" (737 mm),
you may install a Deant through the opening using a
“positive connection” kit, available from your local deal-
er. Positive connection kits ensure a tight t between
the stove ue collar and the chimney ue. (Fig. 9)
Fireplace installations, whether connected to the ue
above or through the replace opening, have special
clearance requirements to adjacent trim and the mantel.
You’ll nd the required safe clearances for Deant re-
place installations on Page 13.
Floor protection requirements also apply to replace
installations. This information is on Page 11.
Whenever possible, design your installation so the con-
nector does not pass through a combustible wall. If you
are considering a wall pass-through in your installation,
check with your building inspector before you begin.
Also, check with the chimney connector manufacturer
for any specic requirements.
Accessories are available for use as wall pass-
throughs. If using one of these, make sure it has been
tested and listed for use as a wall pass-through.
In the United States, the National Fire Protection As-
sociation (NFPA) has established guidelines for passing
chimney connectors through combustible walls. Many
building code inspectors follow these guidelines when
approving installations.
Figure 10 shows one NFPA-recommended method. All
combustible material in the wall is cut away from the
single-wall connector to provide the required 12” (305
mm) clearance. Any material used to close up the open-
ing must be noncombustible.
Three other methods are also approved by the NFPA:
• Placing a section of chimney connector inside a
ventilated thimble, which in turn is separated from
combustibles by 6” (152 mm) of berglass insulat-
ing material.
• Placing a section of chimney connector inside a
section of 9” (230 mm) diameter, solid-insulated,
factory-built chimney, with 2” (51 mm) of air space
between the chimney section and combustibles.
• Using a section of solid-insulated double-wall high
temperature chimney, with an inside diameter the
same as the chimney connector, at least one inch
of solid insulation, and a minimum of 9” (229 mm)
air space between the outer wall of the chimney
section and combustibles.
In Canada, The Canadian Standards Association has
established different guidelines for wall pass-throughs.
Figure 11 shows one method, in which all combustible
material in the wall is cut away to provide the required
18” (457 mm) clearance for the connector. The resulting
space must remain empty. A ush-mounted sheet metal
cover may be used on one side only. If covers must be
used on both sides, each cover must be mounted on
noncombustible spacers at least 1” (25 mm) clear of the
wall.
10
Defiant®1975 Non-Catalytic / Catalytic Woodburning Stove
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DEF
IA
N
T
ST494
steel
wall pass thru
11/00
18” (460mm) clear-
ance between pipe and
sides/top/bottom of
opening
ST494
An approved wall pass-through for Canada.
Your local dealer or your local building inspector can
provide details for other approved methods of passing
a chimney connector through a combustible wall in your
area. In Canada, this type of installation must conform
to CAN/CSA-B365, Installation Code for Solid Fuel
Burning Appliances and Equipment.
Do not vent your Deant into a factory-built
(zero-clearance) replace. These appliances and their
chimneys are specically designed as a unit for use as
replaces. It may void the listing or be hazardous to
adapt them for any other use.
A tremendous amount of heat radiates from the bottom
plate of your stove. The oor area directly under and
around the stove will require protection from radiant
heat as well as from stray sparks or embers that may
escape the rebox.
Heat protection is provided with the use of the Bottom
Heat Shield supplied with the stove.
Most installations will require the bottom heat shield
to be attached. Only when the stove is placed on a
completely noncombustible surface such as unpainted
concrete over earth may it be used without the heat
shield.
Even when the bottom heat shield are installed, most
installations require special thermal protection (insula-
tion) for the oor beneath. Use an approved 1/2” (13
mm) noncombustible hearth pad with k = 0.84 BTU/in
ft2 hr °F or an equivalent material with an R-value of
at least 0.59. (Refer to “How to Determine if Alternate
Floor Protection Materials are Acceptable” section.)
The oor protector may be covered with a decorative
noncombustible material if desired. Do not obstruct the
space under the heater.
When using a re screen with doors open, UL737,
Standard for Fireplace Stoves, use an approved 1” (25
mm) noncombustible hearth pad with k = 0.84 Btu/in
ft2 hr °F or an equivalent material with an R-value of
at least 1.18. (Refer to “How to Determine if alternate
Floor Protection Materials are Acceptable” section.)
The oor protector may be covered with a decorative
noncombustible material if desired. Do not obstruct the
space under the heater. An 8” chimney and chimney
connector is required an the bypass damper must be in
the fully open position.
Protection requirements vary somewhat between the
Untied States and Canada as follows:
the oor protector is required
under the stove and must extend at least 16” (not
including the ash lip) from the front of the stove (“F”,
Fig. 12), and at least 6” from the sides and rear. (“D”
and “E”, Fig. 12)
In rear venting congurations, oor protection must also
extend under the chimney connector and 2” to either
side. (“C”, Fig. 12) For the 8” (203 mm) connector, the
protector must be a minimum of 12” (305 mm) wide.
For the 6” (152 mm) connector, the protector must be
10” (254 mm) wide. The protector must be centered
under the connector.
To meet these requirements, a oor protector must be
at least 44” wide and 46” deep.
A noncombustible oor protector is required
under the stove as well. The oor protector must
extend 18” (457 mm) to the front (“F”, Fig. 12), and 8”
(203 mm) from the sides and rear. (“D” and “E”, Fig. 12)
To meet these requirements, a oor protector must be
at least 46” (1168 mm) wide and 50” (1270 mm) deep.
All oor protection must be noncombustible (i.e. met-
als, brick, stone, mineral ber boards, etc.). Any organic
materials (i.e. plastics, wood paper products, etc.) are
combustible and must not be used. The oor protection
specied includes some form of thermal designation
such as R-value (thermal resistance) or k-factor (ther-
mal conductivity).
11
Defiant®1975 Non-Catalytic / Catalytic Woodburning Stove
30005220
1. Convert specications to R-value:
i. R-value given - no conversion needed.
ii. k-factor is given with a required thickness (T) in
inches:
iii. K-factor is given with a required thickness (T) in
inches:
iv. r-factor is given with a required thickness (T) in
inches: R = r x T
2. Determine the R-value of the proposed alternate
oor protector:
i. Use the formula in Step 1 to convert values not
expressed as R.
ii. For multiple layers, add R-values of each layer to
determine overall R-value.
3. If the overall R-value of the system is greater than
the R-value of the specied oor protector, the alter-
nate is acceptable.
The specied oor protector should be 1/2-
inch thick material with k-factor of 0.84. The proposed
alternate is 4” brick with an r-factor of 0.2 over 1/8”
mineral board with a k-factor of 0.29
Step a: Use formula above to convert specication to
R-value:
Step b: Calculate R of proposed system.
4” brick of r = 0.2, therefore:
Rbrick = 0.2 x 4 = 0.8
1/8” mineral board of k = 0.29, therefore
Rmineralboard = x 0.125 = 0.431
Rtotal = Rbrick + Rmineralboard = 0.8 + 0.431 = 1.231
R = x T
1
k
D
E
A
B
A
E
C
ST500
Defiant
floor protection
1/31/02 djt
E
F
E
F
A. 44” 48” (1219 mm)
B. 46” 50” (1270 mm)
C. 12” 12” (305 mm) 8” Connector
10” 10” (250 mm) 6” Connector
D. 6” 8” (203 mm)
E. 6” 8” (203 mm)
F. 16” 18” (460 mm) ST500
Required oor protection dimensions.
R = x T
1
K x 12
R = x T = x 0.5 = 0.59
1
k
1
0.84
1
0.29
Step c: Compare proposed system Rtotal of 1.231 to
specied R of 0.59. Since proposed system Rtotal is
greater than required, the system is acceptable.
Denitions
r = =
(ft2)(hr)(°F)
(Btu)(in)
1
k
(Btu)(ft)
(ft2)(hr)(°F)
K =
k = = K x 12
(Btu)(in)
(ft2)(hr)(°F)
R = (ft2)(hr)(°F)
Btu
Do not assume that your replace hearth is completely
noncombustible. Many replace hearths do not satisfy
the “completely noncombustible” requirement because
the brick or concrete in front of the replace opening
is supported by heavy wood framing. Because heat
passes readily through brick or concrete, it can easily
pass through to the wood. As a result, such replace
hearths can be a re hazard and are considered a com-
bustible oor.
For all replace installations, follow the oor protection
guidelines described above, including the need for a
bottom shield. Keep in mind that many raised hearths
will extend less than the required clearance from the
front of the heater. In such cases, sufcient oor protec-
tion as described above must be added in front of the
hearth to satisfy the minimum oor protector require-
ment from the front of the stove: 16” (410 mm) in the
United States and 18” (460 mm) in Canada. Hearth
rugs do not satisfy the requirement for oor protection
as they are not re proof.
Fireplace installations also have special clearance
requirements to the side walls, side decorative trim and
replace mantel. Refer to the information on replace
and mantel trim shields in this section.
Both a stove and its chimney connector radiate heat in
all directions when operating, and nearby combustible
materials can overheat dangerously if they are too close
to the heat source. A safe installation requires that ad-
equate clearance be maintained between the hot stove
and its connector and nearby combustibles.
Clearance is the distance between either your stove or
chimney connector, and nearby walls, oors, the ceiling,
and any other xed combustible surface. The Deant
has specic clearance requirements that have been
established after careful research and testing. These
clearance requirements must be strictly observed.
In addition, keep furnishings and other combustible
materials away from the stove. In general, a distance
of 48” (1219 mm) must be maintained between the
stove and moveable combustible items such as drying
12
Defiant®1975 Non-Catalytic / Catalytic Woodburning Stove
30005220
ST248
wall shield construction
12/14/99 djt
Stud Wall
Framing
Wall Shield
Noncombus-
tible Spacers
and Fasteners
Drywall
Air Flow
Air Flow
Screen
Shield
Metal Spacer
ST248
Approved wall shield construction.
A replace installation requires special clearance
between the side of the stove and the right and left
walls, between the side of the stove and the decorative
side trim on the replace face, and between the top of
the stove and the mantel.
Noncombustible shields
installed 1” (25 mm) away
from the combustible surface
on noncombustible spacers,
called ventilated shields,
may be used to reduce
clearances.
To protect a mantel from the
heat of a stove in a replace
installation, use a custom-
made ventilated mantel
shield that is at least 48”
(1220 mm) long, centered
over the stove. (Fig. 14)
Ventilated shields for side
trim must extend the full length of the trim.
1" (25mm)
1/4" (6mm)
ST501
mantel and
trim shield
11/10/00 djt
ST501
A custom-formed
mantel shield.
clothes, furniture, newspapers, rewood, etc. Keep-
ing those clearance areas empty assures that nearby
surfaces and objects will not overheat.
Clearance requirements are established to meet every
installation possibility, and they involve the combination
of these variables:
• When the stove pipe has no listed heat shield
mounted on it.
• When the wall has no heat shield mounted on it.
• When the wall has a heat shield mounted on it.
• When the wall and stove pipe have heat shields.
In general, the greatest clearance is required when you
place a stove and its connector near a wall with no heat
shield.
For example, when the Deant is installed parallel to
the rear wall and no connector shield is used, it must
be at least 15” (381 mm) from the wall behind it and at
least 21” (533 mm) from walls on either side. These di-
mensions are measured from the top edge of the stove
to the combustible wall.
If the Deant is installed in a corner and no shield is
used, the corners of the stove top must be at least 5”
(127 mm) from nearby walls.
Clearances may be reduced only by means approved
by the regulatory authority, and in accordance with the
clearances listed in this manual. Refer to Page 14 for
approved clearance reduction specications.
A minimum ceiling height of 8’ (2.4 m) is re-
quired for all installations of the Deant.
One way to reduce clearances is with a wall shield
constructed of 24 gauge or heavier sheet metal, or of
another noncombustible material such as 1/2” (13 mm)
insulation board such as Durock® or Wonderboard®, or
common brick “laid on at,” with the 3¹\₂" (90 mm) side
down.
Shields must be spaced out from the combustible
surface 1" (25 mm) on noncombustible spacers, as in
Figure 13. The spacers should not be directly behind
the stove or chimney connector.
Air must be able to ow between the wall and the
shield. At least 50% of the bottom 1" (25 mm) of the
shield must be open, and the shield must be open at
the top. Metal screening across the top will keep small
stray objects from being trapped behind the shield. (Fig.
13)
The shield must be a minimum of 48" (1219 mm) tall,
and must extend at least 19" (483 mm) higher than the
top of the stove, whichever is higher. The shield behind
the chimney connector must be 30" (760 mm) wide,
centered behind the pipe; for installations that use an
approved prefabricated chimney to pass through the
ceiling, the shield behind the chimney connector must
stop 1" (25 mm) below the ceiling.
With 8” connections and chimneys, because of poten-
tially higher pipe temperatures, the shield must extend
the full height of the wall (up to 9’ (2.7 m)) and stop 1”
(25 mm) below the ceiling.
13
Defiant®1975 Non-Catalytic / Catalytic Woodburning Stove
30005220
An unprotected mantel (“A”, Fig. 15) cannot be more
than 9” (230 mm) deep and must have a minimum
clearance of 41” (1041 mm), measured from the stove’s
top plate. With a ventilated shield, this clearance may
be reduced safely to 29” (737 mm).
Unprotected top trim (B) protruding 3/4” (19 mm) or less
from the face of the replace must be a minimum of 28”
(711 mm) from the stove’s top surface. With a ventilated
trim shield, this clearance may be reduced safely to 21”
(533 mm).
Unprotected side trim (C) that protrudes 3/4” (19 mm) or
less from the face of a replace must have a minimum
clearance of 14” (356 mm), measured from the stove’s
top side edge. If the trim extends more than 3/4” (19
mm), it is subject to the requirements for wall clearance.
The charts and sample installations that follow list all
the clearances required for the various installation
congurations of the Deant.
ST253b
Encore
trim clearances
02/01 djt
A B
D
CC
A. Mantel 41” (1041 mm) 29” (737 mm)
B. Top Trim 28” (711 mm) 21” (533 mm)
C. Side Trim 14” (356 mm) 14” (356 mm)
D. Side Wall 21” (533 mm) 11” (280 mm)
ST253b
Maintain clearances to combustible components of
the mantelpiece.
Side Wall
14
Defiant®1975 Non-Catalytic / Catalytic Woodburning Stove
30005220
The attached rear shroud must be used in all installations. The ue collar heat shield must be used in all vertical installations.
1. The connector pipe heat shield must extend 36” (914 mm) above the ue collar.
2. WARNING: If stove has been installed based on the clearances described above as “Top exit with single wall or double wall
connector pipe,” then stove cannot be operated as “Door open with re screen and damper open” without moving the stove so
the clearance meets those described for this type installation.
3. Using a listed double wall oval to round connector.
A ceiling heat shield, 24” (610 mm) in diameter and suspended 1” (25 mm) from the ceiling must surround the pipe in installations
where the chimney penetrates the ceiling.
(to rear (to back edge (to rear (to back edge
shroud) of cast top) shroud) of cast top)
Top exit with single (A) 21” (B) 15” (C) 21” (D) 5” (E) 5” (F) 3” (G) 9” (D) 5”
wall connector pipe (521 mm) (381 mm) (521 mm) (127 mm) (127 mm) (76 mm) (229 mm) (127 mm)
Door open with re
screen used and (H) 22” (I) 18” (J) 24”
damper open (559 mm) (457 mm) (610 mm) n/a n/a n/a n/a n/a
(8” chimney only)2
Top Exit with double (P) 21” (Q) 15” (R) 21” (S) 5” (T) 5” (U) 3” (V) 9” (W) 2”
wall3 connector pipe (521 mm) (381 mm) (521 mm) (127 mm) (127 mm) (76 mm) (229 mm) (51 mm)
Rear Exit (X) 21” (Y) 10” (Z) 16” n/a n/a n/a n/a n/a
(521 mm) (254 mm) (407 mm)
15
Defiant®1975 Non-Catalytic / Catalytic Woodburning Stove
30005220
E
F
D
D
D
ST855a
Defiant 2n1
Clearance
Diagrams
D
A
B
H
I
T
U
W
W
S
P
S
Q
X
N/A N/A
Y
CG
N/A
N/A
N/A
J
RV
N/A
Z
ST855
16
Defiant®1975 Non-Catalytic / Catalytic Woodburning Stove
30005220
36¹\₂” (927 mm) 21” (533 mm)16” (406 mm) 20¹\₂” (521 mm) 9” (229 mm) 16” (406 mm)
ST511
Intrepid
flue centerline
Diagrams
11/16/00
*
ABC
*
DEF
* This distance, from the center of the ue collar to the front edge of the hearth, is the same for all installations on this
page: 34” (865 mm) in the United States and 36” (914 mm) in Canada.
36¹\₂” (927 mm) 21” (533 mm) 16” (406 mm) 20¹\₂” (521 mm) 9” (229 mm) 16” (406 mm)
37¹\₂” (953 mm) 18” (457 mm)
17
Defiant®1975 Non-Catalytic / Catalytic Woodburning Stove
30005220
48"
(1220 mm)
48"
(1220 mm)
48"
(1220 mm)
ST498
Defiant
Wall shield B
11/00
Parallel installation with rear wall pass-through, two
wall shields. Reduced clearances to both rear and side walls.
Wall shields may meet at corner if desired. Wall pass-through
must comply with codes.
Refer to “Special Installations.”
ST498
48"
(1220 mm)
48"
(1220 mm)
48"
(1220 mm)
48"
(1220 mm)
ST497
Defiant
wall shield A
11/00
Parallel installation, vertical chimney connector, two
wall shields. Reduced clearances for both rear and side walls.
Wall shields may meet at corner if desired. Shielding for con-
nector is centered behind connector.
ST497
48"
(1220 mm)
48"
(1220 mm)
48"
(1220 mm)
48"
(1220 mm)
ST499
Defiant
Wall Shield C
11/00
ST499
Corner installation, vertical chimney connector, two
wall shields. Reduced side clearances. Wall shield MUST
meet at corner.
18
Defiant®1975 Non-Catalytic / Catalytic Woodburning Stove
30005220
Cast iron stoves are heavy, and it will take two to four
people to move your Deant into position.
Wipe the protective coating of oil from the griddle with a
clean dry rag or a paper towel.
Install the handle on the griddle. First, place the griddle
upside down at the edge of a at surface and assemble
the handle as shown.
With the handle pointing 45° from its nal position,
tighten the nut as
far as possible with
the pliers. Move the
handle to its nal
position while still
holding the nut with
the pliers.
The stove is shipped with the legs attached. In some
instances, the legs may have been removed. Fol-
low these instructions to reattach the legs. Install the
stove legs (Fig. 21) using the hex head bolts from the
parts bag. Use 3/8” washers with all four legs; the door
handle holder installs on the right front leg. Position the
holder so the hole to accept the handle hub faces out
from the right side of the stove. Tighten the bolts rmly.
Overtightening can strip tapped threads.
When moving the stove, lift the stove to take
weight off the legs whenever possible. Dragging or
sliding the stove, especially across rough surfaces can
cause the legs to loosen or even break.
34
ATTACHLEGS
Leg Bolt and
Washer
ST858
Attach the stove legs.
ST564
handle holder
12/13/00
Bottom Heat Shield
Door Handle Holder
Leg Bolt and Washer ST564
Handle holder and heat shield positions.
Use the removable handle to open or close the doors.
After using it, remove the handle so it will not get hot.
Store the handle in the handle holder installed behind
the right front leg. (Fig. 21)
The Bottom Heat Shield is required in most
installations. Refer to Floor Protection, Page 10, for
further details.
1. Loosen the four 1/4-20 hex head bolts from the cor-
ners of the ash drop on the stove bottom.
2. Align the bottom heat shield holes with the four
bolts. The outside air cutout hole should be toward
the rear of the stove. The unpainted side must face
up towards the stove.
3. Pass all four bolts through the large end of the key-
holes and then pulling the shield forward to engage
the smaller ends of the keyhole slots. (Fig. 22)
4. Attach the heat shield sides by passing the slots
over the bolt heads. Tighten the hex head bolts.
ST857
abottom heat shield
12/05
1/10
ST857
Attach the bottom heat shield.
Bottom Heat Shield
ST516
Attach
griddle handle
11/17/00 djt
ST516
Attach the griddle handle.
19
Defiant®1975 Non-Catalytic / Catalytic Woodburning Stove
30005220
Lift the stove slightly so there is no weight on the leg
while making the adjustment.
Reverse the ue collar by removing the two screws that
attach it to the back of the stove. Be sure the gasket
around the ue collar opening is in position when you
screw the collar back onto the stove.
If you have the optional fan kit, you may decide to
adjust the air deector to blow heat across the top of
your stove. (Fig. 24) Loosen the two (2) screws on each
side and raise or lower the deector. After adjustment,
tighten the screws.
The ue collar heat shield must be attached
to the Deant stove. Use four #10 sheet metal screws
supplied to secure the ue collar heat shield to the rear
of the stove. (Fig. 24)
ST540
Assembly
handle
11/00
ST540
Assemble the front door handle.
DEFIANT
ST539
attach
thermostat
handle
11/00
ST539
Attach the thermostat handle.
ST1180
flue collar heat shield
Sheet
Metal
Screws
Sheet
Metal
Screws
Flue Collar
Heat Shield
ST1180
Install ue collar heat shield.
Flue collar heat shield must be installed.
Use the 1/4” -20 x 3” screw to attach the damper handle
to the damper stub on the left side.
The primary air thermostat handle is the smaller of the
two black handles. Secure the handle to the stub on
the right side of the stove with an 8-32 x 2” slot head
machine screw. (Fig. 25)
The ceramic removable insert handle opens and closes
the front doors. Remove after each use, and store it in
the handle holder behind the right front leg. Assemble
the handle by passing the 3C\," screw through the
ceramic shaft and into the bright metal nub. (Fig. 26)
Tighten carefully until snug.
Air Deector
Air Deector
20
Defiant®1975 Non-Catalytic / Catalytic Woodburning Stove
30005220
1. Attach the fan assembly at the bottom edge of the in-
ner back with two (2) 1/4-20 x 3/4” hex head screws.
2. Attach snapstat to the mounting holes on the un-
derside of the bottom with two (2) 1/4-20 pan head
screws.
3. Attach the rheostat holder (provided with the stove)
under the right front wing of the bottom heat shield
with two (2) #10 sheet metal screws.
4. Attach the rheostat to its holder by inserting the rheo-
stat control shaft through the holder hole. Install the
retaining ring and rheostat knob onto the shaft.
5. Secure the rheostat cable to the underside of the
bottom heat shield using the wire tie provided and
the hole at the right rear edge of the heat shield.
6. Fan will not operate until stove reaches approximate-
ly 109°F.
Fan installation (Kit # 2767).
34
FANINSTALL
Rheostat
Knob
Rheostat Snapstat Screws ST848
Hole for Wire
Tie to Secure
Cable
Rheostat
Holder
1. Remove the access cover by gently lifting up and
pulling out from the bottom edge. (Fig. 28)
2. Remove the inner cover by pulling it straight out.
(Fig. 29)
3. Remove the catalyst by gently pulling it straight out.
(Fig. 30) Place the catalyst where the catalyst’s
ceramic components will not be damaged.
ST1187
remove access cover
Access
Cover
ST1187
Remove access cover.
ST1188
remove inner cover
Inner Cover
ST1188
Remove inner cover.
ST1189
remove catalyst
Remove Catalyst ST1189
Remove catalyst.
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