Vermont Casting Stove 1990CE User Manual

The Intrepid II  
Woodburning Stove  
Model 1990CE  
Homeowner’s  
Installation and  
Operating Manual  
For use in Europe  
SAFETY NOTICE: IF THIS APPLIANCE IS NOT PROPERLY INSTALLED, OPERATED AND MAIN-  
TAINED, 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.  
Do Not Discard This Manual: Retain for Future Use  
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Intrepid II Woodburning Stove  
Specifications  
Intrepid II, Model 1990CE  
Nominal heat output ..............6.2 kW (21, 100 BTU/hr)1  
Minimum flue draught......................12 Pa (0.048” WG)  
Mean flue gas temp..............................337° C (639° F)  
Efficiency (space heating) ...................................72.8%  
Area heated................... Up to 112 sq. m (1200 sq. ft.)1  
Fuel size/type .................................410 mm (16”) wood  
Flue mass gas flow............................................. 5.6 g/s  
CO Emissions (@ 13% O2) ...........................2900 ppm  
Loading....................................................... Front or top  
Chimney connector .................... 152 mm (6”) diameter  
Chimney flue size.......................152 mm (6”) minimum  
Flue exit position ....................... Reversible, top or rear  
Primary air ......Manual set, thermostatically maintained  
Secondary air .........................................Self-regulating  
Ash handling system .....................Removable ash pan  
Glass panels.........................High temperature ceramic  
Weight ................................................ 101 kg (233 lbs.)  
Width (leg-to-leg).................................. 545 mm (21¹⁄₂”)  
Depth (leg-to-leg) ................................. 350 mm (13³⁄₄”)  
Height to top of flue collar:  
with regular legs.......................635 mm (25”) top exit  
............................................... 610 mm (24”) rear exit  
with optional short legs.............535 mm (21”) top exit  
............................................ 500 mm (19³⁄₄”) rear exit  
1. 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  
nominal fuel consumption obtained under laboratory  
conditions and on average efficiencies.  
510 mm (20")  
DRAWINGS NOT TO SCALE  
545 mm  
(21")  
31 mm  
540 mm (21")  
(1")  
460 mm (18")  
540 mm (21")  
C
L
610 mm  
(24")  
640 mm  
(25")  
520 mm  
(20")  
Top exit  
flue collar  
height  
180 mm  
(7")  
545 mm (21")  
350 mm (13")  
Fig. 1 Intrepid II 1990CE dimensions.  
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Intrepid II Woodburning Stove  
Installation  
SAFETY NOTICE: IF YOUR STOVE IS NOT PROP-  
ERLY INSTALLED, A HOUSE FIRE MAY RESULT. TO  
REDUCE THE RISK OF FIRE, FOLLOW THE INSTAL-  
LATION INSTRUCTIONS. CONTACT LOCAL BUILD-  
ING OR FIRE OFFICIALS ABOUT RESTRICTIONS  
AND INSTALLATION INSPECTION REQUIREMENTS  
IN YOUR AREA.  
When poor draft is caused by a low infiltration rate,  
opening a ground floor window on the windward side  
of the house and in the vicinity of the stove will usually  
alleviate the problem.  
Another solution is to install a permanent outside air  
supply to the stove and/or room. In some areas, in  
fact, bringing air for combustion from outside the home  
directly to the air inlet of the stove is required for new  
construction.  
Before you begin an installation, review your plans to  
see that:  
Your stove and chimney connector will be far  
enough from combustible material to meet all  
clearance requirements.  
An outside air supply is not affected by pressure varia-  
tions within the house, and improved stove perfor-  
mance often results. An Outside Air Adaptor Kit for the  
Intrepid II is available from your local Vermont Castings  
dealer.  
The floor protector is large enough and is con-  
structed properly to meet all requirements.  
You have all necessary permits from local author-  
ities.  
Your local building official is the final authority for ap-  
proving your installation as safe and determining that it  
meets local and state codes.  
What Kind of Chimney to Use  
Your Intrepid II must be connected to a code-approved  
masonry chimney with a flue liner, to a relined masonry  
chimney that meets local codes, or to a prefabricated  
metal chimney. Whatever kind you use, the chimney  
and chimney connector must be in good condition and  
kept clean. Figure 2 shows the two chimney types.  
The metal label permanently attached to the back of  
every Vermont Castings stove indicates the stove has  
been tested to current standards. The test standard  
is EN13240:2001 + A2:2004 for Europe. 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  
in most cases will accept the label as evidence that the  
installation meets codes and can be approved.  
A prefabricated  
double-wall insu-  
lated chimney  
However, codes vary in different countries. Before  
starting the installation, review your plans with the local  
building authority. You local dealer can provide any ad-  
ditional information needed.  
A tile-lined ma-  
sonry chimney  
IMPORTANT: Failure to follow these installation  
instructions may result in a dangerous situation, in-  
cluding a chimney or house fire. Follow all instruc-  
tions exactly, and do not allow makeshift compro-  
mises to endanger property and personal safety.  
ST241  
Fig. 2 Standard chimney types.  
If you use an existing masonry chimney, it must be  
inspected to ensure safe condition before the stove is  
installed. Your local professional chimney sweep, build-  
ing inspector, or fire department official will be able to  
inspect the chimney or provide a referral to someone  
who can.  
All local regulations, including those referring to  
national and European standards, need to be com-  
plied with when installing this stove.  
Outside Air  
In some modern, super-insulated homes, there is not  
enough air for combustion because of insufficient air  
infiltration into the building. Such air enters a home  
through unsealed cracks and openings. Kitchen or bath  
exhaust fans can compete with the stove for available  
air and compound the problem.  
The flue and chimney design must meet requirement  
J2, Part J of the building regulations 2000 (Combustion  
Appliances and Fuel Storage Systems).  
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Intrepid II Woodburning Stove  
Connecting Flue Pipes  
Masonry Chimneys  
Connector pipes should meet the requirements of the  
building regulations. This can be achieved by the use  
connecting fluepipes included in the following catego-  
ries:  
An inspection of the chimney must confirm that it has  
a lining. Do not use an unlined chimney. The chimney  
should have no cracks, loose mortar, other signs of  
deterioration, or blockage. Repair any defects before  
using the chimney with your stove.  
a) Vitreous enamelled steel pipe complying with BS  
6999: 1989 (1996);  
Seal any unused openings in an existing masonry chim-  
ney with masonry to the thickness of the chimney wall,  
and repair the chimney liner. Openings sealed with pie  
plates or wallpaper are a hazard; seal them with mortar  
or refractory cement. In the event of a chimney fire,  
flames and smoke may be forced out of these unused  
thimbles.  
b) Pipes made from stainless steel as descirbed in BS  
EN 1008-1:1995 grades 1.4401, 1.4404, 1.4432 or  
1.4436 with flue wall thickness of at least 1 mm;  
c) Mild steel fluepipes complying with BS 1449: Part 1:  
1991, with a flue wall thickness of at least 3 mm;  
d) Cast iron fluepipes complying with BS 41: 1973  
(1998).  
The chimney should be thoroughly cleaned before use.  
Flue Pipes with a spigot and socket joint should be  
fitted with the socket facing upwards, to contain con-  
densates and moisture within the flue. Joints should be  
made gas tight using proprietary jointing accessories,  
or, where appropriate, by packing joint with noncombus-  
tible rope and fire cement.  
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. Masonry  
chimneys must be lined, either with code-approved ma-  
sonry 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.  
Double-wall chimney connectors must be tested and  
listed for use with solid-fuel burning appliances. Sin-  
gle-wall chimney connectors should be made of 24  
gauge or heavier steel, and should be 150 mm (6”) in  
diameter. Do not use galvanized connector; it cannot  
withstand the high temperatures that can be reached by  
smoke and gases, and may release toxic fumes under  
high heat.  
Prefabricated Chimneys  
These should be an internal diameter of 150 mm (6”)  
and be of the twin wall insulated construction that has  
been approved for solid fuel use (e.g. Rite Vent ICS of  
ICID Lite Chimney Systems). Diameters over 200 mm  
(8”) are not recommended due to the large cross-sec-  
tion causing excessive cooling of the flue gases.  
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 follow-  
ing on Wall Pass-Throughs. Do not pass the chimney  
connector through an attic, a closet, or any similar con-  
cealed space. The whole connector should be exposed  
and accessible for inspection and cleaning.  
DO NOT CONNECT THIS UNIT TO A CHIMNEY FLUE  
SERVING ANOTHER APPLIANCE.  
Chimney Size  
An Intrepid II is approved for venting into a masonry  
chimney with a maximum flue size of 200 x 200 mm (8”  
x 8”), and into a round flue size of 150 mm (6”).  
In horizontal runs of single-wall chimney connector  
without protective shields, maintain a clearance of at  
least 660 mm (26”) from the ceiling.  
It may not be vented into larger chimneys without a liner  
to reduce the effective flue size to 150 mm (6”) diam-  
eter. Larger chimneys must have their flues relined for  
proper stove performance.  
Keep the horizontal run of chimney connector as short  
and direct as possible, with no more than two 90° turns.  
Slope horizontal runs of connector upward 20 mm per  
m (1/4” per foot) going from the stove toward the chim-  
ney. The recommended maximum length of a horizontal  
run is 914 mm (36”). The recommended total length of  
chimney connector is 2.4 m (8’).  
Accessories to make the connection between stainless  
steel chimney liners and your Intrepid II are available  
through your local dealer.  
Chimney Connector Guidelines  
In cathedral ceiling installations, extend the prefabri-  
cated chimney down to within 2.4 m (8’) of the stove.  
Chimney connector is the double-wall or single-wall  
pipe that connects the stove to the chimney. The chim-  
ney is a masonry or prefabricated structure that enclos-  
es the flue. Chimney connectors are used only to make  
the connection from the stove to the chimney.  
SAFETY NOTE: ALWAYS WEAR GLOVES AND PRO-  
TECTIVE EYEWEAR WHEN DRILLING, CUTTING OR  
JOINING SECTIONS OF CHIMNEY CONNECTOR.  
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Intrepid II Woodburning Stove  
Special adapters are available from your local dealer to  
make the connection between the prefabricated chim-  
ney and the chimney connector. The top of such adapt-  
ers attaches directly to the chimney or to the chimney’s  
ceiling support package, while the bottom of the adap-  
tor is screwed to the chimney connector.  
Double-wall Chimney Connector  
Information on assembling and installing double-wall  
connector is provided by the manufacturer of the  
double-wall pipe. Follow the manufacturer’s instructions  
exactly as you assemble the connector and attach it to  
the stove and chimney. Using connectors and chim-  
neys from the same manufacturer makes the assembly  
and installation straightforward.  
These adapters are designed so the top end will fit  
outside the inner wall of the chimney, and the bottom  
end will fit inside the first section of chimney connector.  
When assembled in this way, any soot or creosote fall-  
ing from the inner walls of the chimney will stay inside  
the chimney connector.  
NOTE: For installations using double-wall con-  
nectors, minimum clearances must conform to the  
listed clearances on Page 9.  
Single-wall Chimney Connector  
Securing the Single-wall Connector to a  
Masonry Chimney  
Beginning at the flue collar of the stove, assemble  
the chimney connector. Insert the first crimped end into  
the stove’s flue collar, and  
keep each crimped end  
For masonry chimneys, both freestanding and fireplace  
chimneys may be used for installation of your Intrepid II.  
pointing toward the stove.  
Using the holes in the  
flue collar as guides, drill  
3 mm (1/8”) holes in the  
Freestanding Chimney Installations  
If the chimney connector must pass through a combus-  
tible wall to reach the chimney, follow the recommenda-  
tions in the Wall Pass-through section that follows.  
bottom of the first section  
The opening through the chimney wall to the flue (the  
“breach”) must be lined with either a ceramic or metal  
cylinder, called the “thimble”, which is cemented firmly  
in place. The fit must be snug and the joint between the  
thimble and the chimney wall must be cemented. (Fig. 4)  
of chimney connector and  
secure it to the flue collar  
with three #10 x 1/2” sheet  
metal screws.  
Secure each joint be-  
tween sections of chimney  
connector, including tel-  
scoping joints, with at least  
three sheet metal screws.  
The pre-drilled holes in  
the top of each section of  
Chimney  
Fig. 3 The crimped end of  
the connector points toward  
stove.  
Flue  
Elbow  
Flue  
Liner  
chimney connector serve as guides when you drill 3 mm  
(1/8”) holes in the bottom of the next section.  
Slip Pipe  
Thimble  
Secure the chimney connector to the chimney. In-  
structions for various installations follow.  
Standard  
Chimney  
Connector  
Be sure the installed stove and chimney connector  
are correct distances from nearby combustible material.  
Flue Collar  
NOTE: Special slip pipes and thimble sleeves that form  
telescoping joints between sections of chimney con-  
nector are available to simplify installations. They often  
eliminate the need to cut individual connector sections.  
Consult your local dealer about these special pieces.  
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Securing the Single-wall Connector to a  
Prefabricated Chimney  
ST492a  
For prefabricated chimneys, follow the installation  
instructions of the chimney maker exactly as you install  
the chimney. The maker of the chimney will supply the  
accessories 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.  
Fig. 4 Chimney connection in a freestanding installation.  
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Intrepid II Woodburning Stove  
A special piece called the “thimble sleeve,” slightly  
smaller in diameter than standard connector and most  
thimbles, will facilitate the removal of the chimney con-  
nector system for inspection and cleaning. Thimble  
sleeves should be available from your local dealer. (Fig.  
5)  
Chimney Connector  
Shields  
*
* Check  
Thimble Sleeve  
These Clear-  
ances  
Flue  
Chimney  
Connector  
*
Keep  
sleeve  
end  
Mantel  
flush  
with flue  
tile  
Seal the  
Damper  
ST243  
Fig. 5 The thimble, made of either ceramic or metal, must be  
cemented securely in place.  
To install a thimble sleeve, slide it into the breach until  
it is flush with the inner flue wall. Do not extend it into  
the actual flue passage, as this could interfere with the  
draft.  
ST244  
Fig. 6 Chimney connector enters chimney above the fire-  
place.  
Check the clearance between the chimney con-  
nector and the ceiling. If no heat shields are used, the  
clearance should be at least 660 mm (26”). To nd out  
how much this clearance may be reduced with heat  
shields, see the clearance chart on Page 14.  
The thimble sleeve should protrude 25 - 50 mm (1-2”)  
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.  
The fireplace damper must be sealed to prevent  
room air from escaping up the flue. However, it must be  
possible to re-open the damper to inspect or clean the  
chimney.  
Without a thimble, a suitable length of chimney con-  
nector can be extended through the breach to the inner  
face of the flue liner, and cemented securely in place.  
Additional pieces of connector are then attached with  
sheet metal screws.  
Fireplace Chimney Installations -  
Through a Fireplace  
Fireplace Chimney Installations -  
Above a Fireplace  
If your fireplace height is at least 635 mm (25”), you  
may install an Intrepid II with standard legs through  
the fireplace opening using a “positive connection” kit  
available from your local dealer. These positive connec-  
tion kits ensure a tight fit between the stove flue collar  
and the chimney flue. (Fig. 7) Fireplace installations,  
whether connected to the flue above or through the fire-  
place opening, have special clearance requirements to  
adjacent trim and the mantel. You will find the required  
clearances for the Intrepid II fireplace installations on  
Page 9.  
The Intrepid II may be connected to a chimney above a  
fireplace opening also. In such installations, the stove is  
positioned on the hearth in front of the fireplace and the  
chimney connector rises from the stove top and then  
angles ninety degrees back into the chimney. (Fig. 6)  
The chimney liner should extend to the point at which  
the chimney connector enters the chimney.  
If the chimney connector from your installation enters  
the chimney above a fireplace, follow all the guidelines  
mentioned above for freestanding installations. In addi-  
tion, give special consideration to the following points:  
Floor protection requirements also apply to fireplace  
installations. Floor protection information is on Page 8.  
Check the clearance between the stove and the  
chimney connector, and any combustible trim or the  
mantel. Use the necessary combination of mantel, trim,  
and connector heat shields to achieve the required  
clearances.  
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Intrepid II Woodburning Stove  
460 mm (18”) clearance all  
around the pipe  
Flexible Connector  
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Flush Mounted  
Sheet Metal  
Cover  
Mantel Shield  
Fireplace Adaptor Kit  
ST494a  
Fig. 8 An approved wall pass-through.  
Hearths  
This appliance must be installed on to hearth that  
meets the requirements of Part J of the Building Regu-  
lations 2000 (Combustion Appliances and Fuel Storage  
Systems). This can be achieved by ensuring that the  
hearth is constructed and sized in accordance with the  
guidelines included in section 2 of approved document  
‘J’. The size and clearances of the hearth are as fol-  
lows:  
ST245  
Fig. 7 Chimney connector enters chimney through the fire-  
place opening.  
Wall Pass-Throughs  
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 specific requirements.  
The constructed hearth should be constructed in ac-  
cordance with the recommendations in document J,  
and should be of minimum width 840 mm and minimum  
depth 840 mm (if a free standing hearth b) above) or  
a minimum projection of 150 mm from the jamb (if a  
recessed hearth a) above).  
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.  
The following illustration shows one method of pass-  
ing a connector througha wall. All combustible material  
in the wall is cut away to provide the required 460 mm  
(
18”) clearance for the connector. The resulting space  
must remain empty. A flush-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 noncom-  
bustible spacers at least 25 mm (1”) clear of the wall.  
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.  
Wood framing requires  
protection from radiant heat  
ST247a  
Fig. 9 Supporting timbers under fireplace hearth are consid-  
ered to be combustible.  
DO NOT CONNECT AN INTREPID II TO ANY AIR  
DISTRIBUTION DUCT OR SYSTEM.  
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Intrepid II Woodburning Stove  
Costructional Hearth  
Dimensions as below  
At least 150 mm  
or to a suitable  
heat resistant wall  
Appliance  
Doors  
Appliance  
Doors  
Hearth Surface  
Free of Com-  
bustible Material  
At least  
150 mm  
Perimeter should be  
Perimeter should be  
clearly marked e.g.  
edge of superimposed  
hearth  
clearly marked e.g.  
edge of superimposed  
hearth  
At least  
300 mm  
a) Fireplace recess  
b) Free standing  
ST912  
Fig. 10 Noncombustible hearth surface dimensions.  
are too close to the heat. A safe installation requires  
that adequate clearance be maintained between the  
hot stove and its connector and nearby combustibles.  
Floor Protection for Fireplace Installations  
Do not assume your fireplace hearth is completely  
noncombustible.  
Clearance is the distance between either your stove  
(measured from the back edge of the stove’s top plate)  
or chimney connector, and nearby walls, floors, the  
ceiling, and any other fixed combustible surfaces. In  
addition, furnishings and other combustible materials  
must be kept away from the stove as well. In general, a  
distance of 1220 mm (48”) must be maintained between  
the stove and moveable combustible items such as dry-  
ing clothes, furniture, newspapers, firewood, etc. Keep-  
ing those clearance areas empty assures that nearby  
surfaces and objects will not overheat.  
Many fireplace hearths do not satisfy the “completely  
noncombustible” requirement because the brick or  
concrete in front of the fireplace opening is supported  
by heavy wood framing as in Figure 9. Because heat  
passes through brick or concrete readily, it can easily  
pass through to the wood. As a result, such fireplace  
hearths can be a fire hazard and are considered a com-  
bustible floor.  
Keep in mind that many raised hearths will extend  
less than the required clearance from the front of the  
heater when it is installed. In such cases, sufficient  
floor protection as described above must be added in  
front of the hearth to satisfy the minimum floor protector  
requirement from the front of the stove: 406 mm (16”)  
from the front. Fireplace hearths must also offer the  
required protection of 152 mm (6”) on either side.  
Clearances  
As with any solid fuel heating stove, extremely high  
surface temperatures can occur, particularly in the  
event of uncontrolled operation, e.g. if the doors  
are inadvertently left open. It is crucial that suf-  
ficient clearances are allowed to any combustible  
surfaces, e.g. wooden mantels or lintels, and to  
timber framed (studded) walls even if they are faced  
with noncombustible board. Detailed information  
on fireplace and hearth construction is provided  
in section 2 of Document J, all installations must  
comply with these requirements or with the relevant  
National or local building standards.  
Optional 76 mm (3”) short legs may be used only on  
such hearths that meet the width and depth require-  
ments outlined previously under “floor protection.”  
Hearth rugs do not satisfy the requirements for floor  
protection.  
Fireplace installations also have special clearance  
requirements to the side walls, side decorative trim, and  
fireplace mantle. Refer to the information on fireplace  
and mantel trim shields in this section.  
Clearances to timber framed (studded) walls are includ-  
ed below. There are no specific minimum clearances  
to solid noncombustible surfaces (e.g. the sides and  
rear of Inglenook fire openings constructed from solid  
masonry) other than to allow safe access to the controls  
of the stove. For this reason minimum side clearances  
of 125 mm, and a minimum rear clearance of 50 mm  
are recommended.  
Keep the Stove a Safe Distance from  
Surrounding Materials  
Both a stove and its chimney connector radiate heat in  
all directions when operating, and dangerous overheat-  
ing of nearby combustible materials can occur if they  
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Summary of Clearances  
Minimum recommended side clearances to non-  
combustible surfaces 125 mm (5”).  
B
Minimum recommended rear clearance to noncom-  
bustible surfaces 50 mm (2”).  
NOTE: The minimum thickness of solid noncombus-  
tible materials is specified in section 2 of Document ‘J’,  
in relation to the clearance of the appliance from the  
surface. As a general rule, the thickness of solid non-  
combustible material forming the recess of a fireplace is  
a minimum of 200 mm.  
A
ST486a  
Fig. 11 Minimum clearances.  
Connecting Flue Pipe - Clearances  
Minimum rear clearance from combustible walls  
(e.g. timber framed or studded walls) 610 mm (24”)  
measured from the rear edge of the stove top. (Fig.  
11, B)  
Single wall connecting fluepipes can reach extremely  
high temperatures; therefore, clearances from the con-  
necting fluepipe (chimney connector) must comply with  
the requirements of Part J of Building Regulations 2000  
(Combustion Appliances and Fuel Storage Systems).  
This can be achieved by following the recommenda-  
tions of Approved Document ‘J’. These are as shown in  
Figure 12.  
Minimum side clearance from combustible walls  
610 mm (24”) measured from the side edge of the  
stove top. (Fig. 11, A)  
Minimum distance from stove to movable combus-  
tible materials (e.g. furniture, drying clothes, etc.)  
760 mm (30”).  
at least  
3 x D  
at least  
1.5 x D  
at least 3 x D  
D
D
at least  
1.5 x D  
Fluepipe  
at least  
1.5 x D  
at least  
1.5 x D  
Air space of at least 12 mm  
between noncombustible shield  
and combustible material  
Plan Without  
Shield  
at least  
1.5 x D  
Elevation  
Without  
Shield  
Plan With  
Shield  
Elevation  
With Shield  
ST911  
Fig. 12 Connecting fluepipe clearances.  
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Intrepid II Woodburning Stove  
Assembly  
Clean the Griddle Before Use  
At the factory the griddle is coated with vegetable oil to  
prevent rusting while the stove is in transit and storage.  
Remove the oil with a dry rag or paper towel before you  
use the stove.  
10³⁄₄"  
Set Up the Stove  
9³⁄₄"  
Remove any loose parts from inside the stove. Place a  
protective pad on the floor, arrange some sections of 4  
x 4 lumber on the pad for support, and carefully tip the  
stove onto them, on its back.  
ST512  
Remove and discard the four large slot-head screws  
from the stove bottom (Fig. 13) and install the stove  
legs, using the hex head bolts from the parts bag. Use  
3/8” washers with three of the legs; the door/damper  
handle holder installs in place of a washer on the right  
front leg. Position the holder so the hole to accept the  
handle nub faces out from the right side of the stove.  
Tighten the bolts firmly.  
Fig. 14 Attach bottom heat shield.  
Storing the Handle  
Use the removable handle to open or close the front  
doors, or to change the position of the damper. After  
using it, remove it so it won’t get hot, and store it in the  
handle holder installed behind the right front leg. (Fig.  
15)  
Slotted  
Screws  
Door Handle Holder  
Bottom Heat Shield  
ST513  
Fig. 13 Remove the slotted screws from the stove bottom.  
Bracket  
Install the Bottom Heat Shield  
Wing Bolt  
ST514  
A bottom heat shield must be used unless the stove is  
to be situated on a completely noncombustible hearth,  
such as unpainted concrete over earth. To install the  
bottom heat shield, loosen the leg bolts, and slip the  
bottom heat shield C-clips onto the bolts. Attach the  
bottom heat shield to the C-clips with the wing nuts, and  
tighten the leg bolts. Align the shield as shown in Figure  
14.  
Fig. 15 Handle holder and heat shield positions.  
Reversing the Flue Collar  
You can reverse the flue collar by removing the two  
screws that attach the collar to the back of the stove.  
(Fig. 16) Be sure the gasket around the flue collar  
opening is in position when you screw the collar back  
on to the stove.  
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Intrepid II Woodburning Stove  
Flue Collar Screws  
Operation  
Your Intrepid II’s Controls and  
What They Do  
The stove has two controls to regulate performance: a  
primary air control supplies oxygen for the fire, and a  
damper directs air flow within the stove to activate and  
deactivate the catalytic combustor.  
Additional air for catalytic combustion is regulated auto-  
matically, and does not require operator control.  
ST515  
Symbols cast into the stove are reminders of the correct  
directions for opening and closing the controls. In these  
directions, ‘left’ and ‘right’ assume that you are facing  
the front of the stove.  
Fig. 16 Reversing the flue collar.  
Attach the Griddle Handle  
A Single Air Control Regulates the  
Amount of Heat the Fire Will Produce and  
How Long it Will Burn  
Install the handle on the griddle. Place the griddle  
upside down at the edge of a flat surface and assemble  
the handle as shown. (Fig. 17)  
With the handle pointing 45° from its final position,  
tighten the nut as far as possible with pliers. Move the  
handle to its final position while still holding the nut with  
the pliers. Take care not to overtighten, as tab may  
snap.  
The primary air control lever, located at the right rear  
corner of the stove, controls the amount of incoming air  
for starting, maintaining, and reviving a fire. More air  
entering the stove makes the fire burn hotter and faster,  
while less air prolongs the burn at a lower heat level.  
For the greatest air supply and maximum heat output  
(but the shortest burn time), move the lever to the left.  
For a fire that will last longer with less heat, move the  
lever to the right. You can set the lever anywhere in  
between the left and right extremes. (Fig. 19)  
The Intrepid II features an automatic thermostat to en-  
sure an even heat output at any setting you select. The  
thermostat senses the heating and cooling of the stove  
surface and adjusts the air shutter accordingly.  
ST516  
High Heat  
Fig. 17 Attaching the griddle handle.  
Low Heat  
Griddle  
Handle  
Air Control Lever  
Damper Handle  
Door Handle  
Rear View  
ST517  
Fig. 19 The thermostat handle may be positioned anywhere  
between the two extremes for different heat levels.  
Ash Pan  
Door Handle  
Holder  
(Behind Leg)  
Andiron  
ST518  
Fig. 18 The Intrepid II controls.  
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Intrepid II Woodburning Stove  
A Damper Directs Air Flow  
Within the Stove  
Andirons  
Your stove has andirons to keep logs away from the  
glass panels. The andirons are important to maintain  
clear fireviewing and should be removed only while  
reloading through the front doors.  
The damper handle opens and closes the damper to  
direct air flow within the stove, and is next to, and to the  
right of, the primary air control lever on the right side of  
the stove. (Fig. 20)  
Wear heavy stove gloves when removing the andirons,  
and place them on a noncombustible surface until you  
replace them in the stove. Most stove owners will prefer  
the convenience of top loading through the griddle, and  
will leave the andirons in place permanently.  
When the handle points to the floor, the damper is  
open, letting smoke pass directly into the chimney. The  
damper must be open when starting or reviving a fire,  
and whenever the griddle or doors are opened.  
When the handle points to the front, the damper is  
closed. Smoke from the fire travels through the catalytic  
combustion system where it can burn further for greater  
efficiency, before passing up the chimney.  
The damper has no intermediate positions. Figure 28  
shows the handle’s open and closed positions.  
When closing the damper, push firmly and snap it  
into the locked position to ensure that the stove  
remains in the catalytic mode.  
Side View  
ST520  
Open  
(Updraft Mode)  
Fig. 21 Remove the andirons for front loading.  
Two Ways to Add Fuel  
The Intrepid II’s griddle lifts for convenient top-loading  
of logs, and is the easiest way of regularly adding fuel.  
However, the front doors open as well for adding an oc-  
casional log to a fire. (Fig. 22)  
You can open (or even remove) the front doors and  
place the optional Intrepid II spark screen in the front  
opening for open-fire viewing.  
Closed  
(Catalytic Mode)  
ST519  
Fig. 20 The damper is either open or closed. There are no  
intermediate positions.  
Glass Door Panels  
INTREPID II  
The glass panels in the doors have a heat-reflective  
coating on the outside surface. Heat reflected back to  
the inside of the glass helps keep the inner surface at  
a higher temperature than the outside. In combination  
with pre-heated primary combustion air ‘washing’ over  
the inside of the glass, this helps provide clear fire-  
viewing at most operating levels.  
ST521  
Fig. 22 Top loading is the best way to add fuel during regular  
use. Front loading is useful for kindling a fire.  
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Intrepid II Woodburning Stove  
For areas that do not have a supply of hardwood, com-  
monly burned softwoods include tamarack, yellow pine,  
white pine, Eastern red cedar, fir, and redwood. These  
too should be properly dried.  
WARNING: For safety and greatest efficiency, oper-  
ate your stove only with all doors/griddles fully  
closed. The test standard for your stove when it is  
operated in this mode is UL 1482.  
Store firewood under cover to keep it dry. Dry, well-sea-  
soned wood is best for heating and fire-viewing. How-  
ever, avoid wood dried more than two years. This wood  
burns very quickly, reducing burn time.  
Your stove may be used as a fireplace with the front  
doors open or removed only when the spark screen  
is placed correctly in the opening to protect against  
the possibility of sparks and embers leaving your  
stove. The test standard for your stove when it is  
operated in this mode is UL 737.  
Even for short-term storage, keep wood a safe distance  
from the heater and keep it out of the areas around the  
heater used for refueling and ash removal.  
Use only the Intrepid II spark screen, part #0136,  
with your Intrepid II.  
A Surface Thermometer is a Valuable  
Guide to Operation  
Intrepid II spark screens are available from your  
Vermont Castings’ Authorized Dealer.  
An optional surface thermometer tells you when to  
adjust the air control, when to refuel, and helps to tell  
when your catalyst is operating properly.  
To open the front doors, insert the handle into the door  
latch stub and turn it to the left and up. To close them,  
always close the left door first. Turn the handle in the  
right door to the left and up (to the open position) and  
close the door. Push on the door as you turn the handle  
to the right and down. The doors will draw in slightly,  
and the handle should offer some resistance as you  
turn it to the closed position. (Fig. 23)  
For example, when the thermometer registers at least  
230° C (450° F) after start-up you know the stove is  
hot enough to begin catalytic combustion and it may be  
time to close the damper.  
Place the thermometer in the center of the griddle, as in  
Figure 24, and use the following temperature ranges as  
a guide to operation:  
Avoid striking the glass or slamming the doors to re-  
duce the risk of breaking the glass.  
When thermometer readings drop below 175° C  
(350° F) it’s time to adjust the air control for a higher  
burn rate or to reload the stove.  
When you’re not using the door handle, store it in the  
holder behind the right front leg of the stove.  
A temperature reading over 400° C (750° F) is a sign  
to cut back on the air supply to slow the burn rate.  
Readings in the 150-200° C (300-400° F) range  
indicate low to medium heat output.  
Open  
Position  
Readings of 260-340° C (500-650° F) indicate high  
heat output. Operating your Intrepid II continuously  
at griddle temperatures of 400° C (750°F) or higher  
may damage inner parts or the enamel finish.  
Closed  
Position  
ST522  
Fig. 23 To open the front doors, turn handle clockwise.  
ST523  
Burn Only High-Quality Wood  
Fig. 24 Take temperature readings with a thermometer lo-  
cated in the middle of the griddle.  
The Intrepid II is designed to burn natural wood only; do  
not burn fuels other than that for which it was designed.  
You’ll enjoy the best results when burning wood that  
has been adequately air-dried. Avoid burning “green”  
wood that has not been properly seasoned. The wood  
should be 410 mm (16”) in length.  
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.  
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Intrepid II Woodburning Stove  
Use the Air Control Settings  
that Work Best for You  
Intrepid II Control Settings  
Burn Rate  
Primary Air Control  
Low  
From far right to 1/3 the  
distance to left  
No single air control setting will fit every situation. Set-  
tings will differ depending on the quality of the fuel, the  
amount of heat desired, and how long you wish the fire  
to burn.  
Medium  
High  
From 1/3 to 2/3  
the distance to left  
From 2/3 the distance  
to left to far left  
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 affected by such  
things as the length, type, and location of the chimney,  
local geography, nearby obstructions, and other factors.  
Before you start using the stove, please read the Draft  
Management section starting on Page 18 to see how  
the features of your installation will affect the stove’s  
performance. You and the stove are parts of a system,  
and other parts of the system have a strong effect on  
operation; you may need to vary your firing technique to  
get the performance you want.  
Too much draft may cause excessive temperatures in  
the Intrepid II, and could even damage the combustor.  
On the other hand, too little draft can cause backpuffing  
into the room and/or the “plugging” of the chimney or  
combustor.  
How to Build a Wood Fire  
and Keep it Going  
How do you know if your draft is excessively high or  
low? Symptoms of too much draft include an uncontrol-  
lable burn or a glowing-red stove part. A sign of inad-  
equate draft is smoke leaking into the room through the  
stove or chimney connector joints, low heat, and dirty  
glass.  
An Intrepid II leaves the factory with the combustor  
installed.  
In the United States, it is against the law to operate this  
wood heater in a manner inconsistent with operating  
instructions in this manual, or if the catalytic combustor  
is deactivated or removed.  
In some newer homes that are well-insulated and  
weather-tight, poor draft may result from insufficient air  
in the house. In such instances, an open window near  
the stove on the windward side of the house will provide  
the fresh air needed.  
High-Efficiency Wood Burning  
with Catalytic Combustion  
Another option for getting more combustion air to the  
stove is to duct air directly from outdoors to the stove.  
In fact, in some areas provisions for outside combustion  
air are required in all new construction.  
The catalytic combustion system in your Intrepid II  
produces the best conditions for secondary combustion.  
When the stove damper is closed, smoke goes through  
the catalytic element, burning at temperatures of  
260-315° C (500-600° F), half the temperature normally  
needed for unaided secondary combustion.  
Your Intrepid II will accept a duct carrying outside air for  
combustion.  
When first using the stove, keep track of the air control  
settings. You will quickly find that a specific setting will  
give you a fixed amount of heat. It may take some time  
to determine the amount of heat and the length of burn  
you should expect from various settings. Please read  
the Draft Management section beginning on Page 18  
for more information on how installation features affect  
draft.  
The catalytic element is a ceramic “honeycomb” coated  
with a noble metal, usually platinum. The element is in  
the secondary combustion chamber, made of a spe-  
cial high-temperature insulating refractory material.  
The chamber provides the correct environment neces-  
sary for secondary combustion of the fuel (smoke).  
Closing the damper may also reduce draft. Closing the  
damper too soon may put out the fire or deactivate the  
combustor. Close the damper only when the fire is well  
established. When starting a fire, wait until there is an  
ember bed of at least 76 - 102 mm (3-4”) before closing  
the damper.  
Most installations do not require a large amount of com-  
bustion air, especially if adequate draft is available.  
Do not for any reason attempt to increase the firing  
of your heater by altering the air control adjustment  
range outlined in these directions.  
Never kindle a fire with colored paper or paper that  
has colored ink or a glossy surface, and 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 flakes of char or fly ash that can  
Use the following air control settings as a starting point  
to help determine the best settings for your installation.  
Each is described as a fraction of the total distance the  
lever may be moved from right to left.  
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Intrepid II Woodburning Stove  
coat the combustor and cause smoke to spill into the  
room. Coal smoke also can poison the catalyst so that it  
won’t operate properly.  
In general, the fire must be sufficiently well-established  
to ensure catalytic activity is initiated. When first starting  
a fire, maintain a medium- to high- firing rate for at least  
twenty minutes. This ensures the stove, catalyst, and  
fuel are all stabilized at the proper operating tempera-  
tures. This may be long enough to warm the chimney  
well enough to support a good draft; some installations  
may need more time. Please read the Draft Manage-  
ment information starting on Page 23 to see if your  
installation has features that may require more time to  
warm up.  
ST263  
Even though it is possible for the fire to get quite hot  
within a few minutes, the combustor may stop working  
or the fire may go out if the fire is allowed to die down  
immediately as a result of closing the damper. Once the  
combustor starts working, heat generated by burning  
the smoke will keep it working.  
Fig. 25 Start the fire with newspaper and dry kindling.  
DO NOT USE CHEMICALS OR FLUIDS TO START  
THE FIRE. DO NOT BURN GARBAGE OR FLAMMA-  
BLE FLUIDS SUCH AS GASOLINE, NAPHTHA, OR  
ENGINE OIL. Also, never use gasoline-type lantern  
fuel, kerosene, charcoal lighter fluid, or similar  
liquids to start or “freshen up” a fire. Keep all such  
liquids well away from the Intrepid II while it is in  
use.  
To determine whether the combustor is operating, ob-  
serve the amount of smoke leaving the chimney when  
the damper is activated and when it is not. This proce-  
dure is described on Page 27.  
3. Light the newspaper and close the door. Gradu-  
ally build up the fire by adding a few 76 - 127 mm  
(3-5”) diameter splits. If this is one of the first few  
“break-in” fires, let the fire burn brightly, and  
then let it die out.  
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.  
During the break-in fires, don’t let the stove get hot-  
ter than 260° C (500° F) as measured on an optional  
stove-top thermometer. Adjust the air control lever  
as necessary to control the fire. Some odor from the  
stove’s hot metal, the paint, and the cement is normal  
for the first few fires.  
The cast plates expand and contract with changes in  
temperature. When you first begin using your Intrepid II,  
minimize thermal stress by allowing the plates to adjust  
gradually during three or four initial break-in fires follow-  
ing Steps 1-3 below.  
Starting and Maintaining a Wood Fire  
NOTE: Some chimneys need to be “primed,” or  
warmed up, before they will draw sufficiently to start  
a fire. To correct this situation, roll up a couple pieces  
of newspaper, place them on top of the kindling and  
toward the back of the stove, light them, and close the  
doors. This should heat the chimney enough to initiate  
a draft.  
Burn solid wood fuel only in the Intrepid II, and burn it  
directly on the grate. Do not elevate the fuel. Do not  
burn coal or other fuels.  
The damper must be open when starting a fire or  
when refueling.  
1. Open the stove damper, and open the primary air  
control fully.  
Once the draft is established, open the front door and  
light the rest of the fuel from the bottom. Do not light the  
main bed of fuel until the chimney begins drawing, and  
repeat the procedure as often as necessary if the initial  
attempt is unsuccessful.  
2. Place several sheets of crumpled newspaper in the  
stove. Do NOT use glossy advertisements or colored  
paper, as they can poison the catalyst. Place on the  
paper six or eight pieces of dry kindling split to a  
finger-width size, and on the kindling lay two or three  
larger sticks of split dry wood approximately 25 - 50  
mm (1-2”) in diameter. (Fig. 25)  
4. If your Intrepid II has been broken-in previously  
using Steps 1-3, continue to build the fire gradually.  
Add larger wood with a diameter of 76 - 102 mm (3-  
4”). (Fig. 26)  
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Intrepid II Woodburning Stove  
ST264a  
ST264  
Fig. 26 Add larger pieces of wood as the fire begins to burn  
Fig. 27 Add full size logs when the ember bed is 3” (75mm)  
well.  
deep.  
CAUTION: The Intrepid II will be hot while in opera-  
tion. Keep children, clothing and furniture away.  
Contact may cause skin burns.  
Continue adding split logs of this size to the briskly-  
burning fire until there is a glowing ember bed at  
least 76 mm (3”) deep. A good ember bed is neces-  
sary for proper functioning of the catalytic system  
and may take an hour or more to establish.  
5. Close the damper when the griddle temperature  
reaches 230° C (450° F).  
DO NOT OVERFIRE THIS HEATER. Overfiring may  
cause a house fire, or can result in permanent damage  
to the stove and to the catalytic combustor. If any part  
of the Intrepid II glows, you are overfiring.  
6. Adjust the air control for your desired heat output.  
Ash Disposal  
Refuel While the Embers are Still Hot  
Remove ash before it reaches the top of the ash pan.  
Check the level at least once a day, and before each  
re-fueling. If the ash is close to the top edge of the pan,  
empty it according to this procedure:  
Reload the Intrepid II while it is still hot and there are  
plenty of glowing embers to re-kindle the fire. Include  
some smaller pieces of wood in the new load of fuel to  
help the stove rebuild its operating temperature quickly.  
1. Open the damper.  
Wear stove gloves, and follow this procedure when you  
reload your stove:  
2. Open the front doors fully.  
3. Using stove gloves, pull the ash pan out of the stove  
by its handle.  
1. Open the thermostat lever.  
2. Open the damper.  
4. Remove the ash pan and properly dispose of the  
3. Check the ash level in the ash pan; empty, if neces-  
sary, and replace the pan.  
ashes. Be sure to keep the pan level during dispos-  
al.  
4. Open the griddle.  
5. Return the ash pan to the stove.  
5. Position the charcoal in the middle of the firebox  
(Fig. 41)then load wood — smaller, split pieces first.  
Increase the amount of fuel you load into the stove  
as you become familiar with your stove and the  
heating needs of your home.  
Empty the ash pan regularly, typically every one to  
three days. The frequency will vary depending on how  
you operate your Intrepid II; if you burn more wood at  
higher heat output settings, ash will accumulate rapidly.  
Remove ash frequently and place it outdoors in a metal  
container with a tight-fitting lid. Put the closed container  
of ash on a noncombustible floor or on the ground,  
well away from all combustible materials, pending final  
disposal. If the ash is disposed of by burial in soil or  
otherwise locally dispersed, keep it in the closed con-  
tainer until all cinders have thoroughly cooled. You can  
use wood ash as a garden fertilizer.  
NOTE: If the remaining charcoal bed is relatively thick  
and if your fuel is well seasoned, it is possible to add  
fresh fuel (smaller pieces first), close the door and  
damper, and reset the primary air thermostat for the  
desired heat output.  
Do not break the charcoal into very small pieces or  
pound or compress the charcoal bed.  
CAUTION: Never use your household or shop vacuum  
cleaner to remove ash from the stove; always remove  
and dispose of the ash properly.  
It is important that air can circulate under the wood for  
the fire to be quickly revived.  
WARNING: Operate your Intrepid II only with the  
doors either fully open or fully closed.  
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Intrepid II Woodburning Stove  
Draft Management  
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.  
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, more is not better; in fact, it  
can be a disadvantage. Hot gases cool off through ex-  
pansion; if we vent a stove with a 152 mm (6”) flue collar  
{181 sq. cm (28 sq. in.) area} into a 254 x 254 mm (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.  
Wood stove 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 inlet  
fully open indicates a weak draft. A brisk fire, supported  
only by air entering the stove through the normal inlet,  
indicates a good draft. The stove’s air inlet is passive;  
it regulates how much air can enter the stove, but it  
doesn’t move air into it.  
It’s common for a masonry flue, especially one built for  
a fireplace, to be oversized for an airtight stove. It can  
take quite a while to warm up such a flue, and the re-  
sults can be disappointing. The best solution to an over-  
sized flue is an insulated steel chimney liner, the same  
diameter as the stove or insert’s flue outlet; the liner  
keeps the smoke at its original volume, 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.  
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.  
Some chimneys do this better than others. Here’s a list  
of features and their effects.  
Pipe & Chimney Layout  
Every turn the smoke must take in its travel from the  
stove to the chimney top will slow it down. The ideal  
pipe and chimney 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 stove-  
pipe 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 taller stove without relocating the thimble.  
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  
There should be no more than eight feet of single-wall  
stove pipe between the stove and a chimney; longer  
runs can cool the smoke enough to cause draft and  
creosote problems. Use double-wall stove pipe for long  
runs.  
Most factory-made steel chimneys have a layer of in-  
sulation around the inner flue. This insulation keeps the  
smoke warm. The insulation is less dense than mason-  
ry, so the inner steel liner warms up more quickly than a  
masonry chimney. Steel doesn’t have the good looks of  
masonry, but it performs much better.  
Single Venting  
Each ‘airtight’ stove requires its own flue. If an airtight  
stove is vented to a flue that also serves an open fire-  
place, or a leakier stove, it’s easier for the chimney draft  
to pull air in through those channels than it is to pull air  
through the airtight, and performance suffers. Imagine  
a vacuum cleaner with a hole in the hose to see the ef-  
fect here. In some cases the other appliance can even  
cause a negative draft through the airtight, and result in  
a dangerous draft reversal.  
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 a little 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 get  
it warm and keep it warm.  
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smoke rise to the flue more quickly, let more air into  
the firebox, and avoid big loads of firewood. Run your  
stove with enough primary air so that you always see  
lively, dancing flames in the firebox; a lazy, smoky fire is  
inefficient and can contribute to creosote buildup in the  
chimney.  
Creosote  
Creosote is a by-product of slow wood-burning. It’s an  
organic tar that can condense in the flue if it’s dense in  
the smoke, and slow-moving, and cools off to less than  
130° C (290° F). Condensed creosote is volatile, and  
can generate chimney fires if it gets hot enough. All the  
features that affect chimney draft also affect creosote  
condensation - so use whatever combination of installa-  
tion features and operational steps that will encourage  
good draft and minimize creosote production.  
Draft Testing  
An easy way to test your chimney draft is to close the  
stove’s damper, wait a few minutes to let the airflow  
stabilize, then see whether you can vary the strength of  
the fire by swinging the air control open and closed. Re-  
sults are not always instant; you may need to wait a few  
minutes for a change in the air control setting to have  
an effect on the fire. 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 a while longer and manage the  
fire with the air inlet until the draft strengthens. If you  
keep track of your burning habits and relate them to  
their effects on the stove’s operation, you’ll be rewarded  
with good performance and a safe system.  
Because letting the smoke cool off and slow down is  
one of the keys to creosote production, it makes sense  
to line a chimney to match the stove’s outlet size, for  
safety reasons as well as performance. Consult a quali-  
fied installer and check local and national codes for  
recommended chimney size.  
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. Fairly ‘green’ wood has a good amount of  
moisture in it; it will burn, but some of the heat potential  
is used to drive the remaining moisture off the wood.  
This reduces the amount that reaches your home and  
can contribute to a creosote problem. There are mois-  
ture meters available for firewood; 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 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.  
Negative Pressure  
Good draft also depends on a supply of air to the stove;  
a chimney can’t pull in more air than is available to it.  
Sluggish draft results when a house is tight enough to  
prevent the ready flow of air to the stove, or by competi-  
tion between the stove and other equipment that sends  
indoor air outside - especially power-driven equipment  
like range hoods, clothes dryers, etc. If the chimney  
draws well with all other equipment turned off (or  
sealed, in the case of fireplaces and/or other stoves),  
then you simply need to be careful with timing the use  
of the other equipment. If you need to crack a nearby  
window or door to enable the chimney to draw well,  
that’s a sign that you should install an outside-air intake  
to bring combustion air directly to the stove. Vermont  
Castings dealers carry adapters to attach to the stove  
to connect an air duct for outdoor combustion air.  
Dry wood burns readily with a good chimney draft. But  
with modern stoves, especially catalytic ones, the wood  
can be too dry. While extra-dry wood has little creosote  
in it, the remainder can ‘gas out’ from the wood quickly  
and densely enough to overload the catalytic burner.  
If you hear a rumbling or roaring noise, like a propane  
torch, from the stove, that is a sign that the catalyst is  
seriously overfiring. The catalyst is a platinum film on a  
ceramic base; the metal can get to higher temperatures  
than the ceramic can take, and overfiring the catalyst  
can break it. Dry wood can also burn out faster than  
you want. If your dry wood burns out too quickly or  
overloads the catalyst you can mix in greener wood to  
slow the fire down.  
In many cases, local or national codes require the  
installation of permanently open air vents, particularly  
with larger appliances (i.e. above 5 kW). Refer to these  
codes to determine specific requirements for your  
installation.  
Conclusion  
Wood-burning is an art rather than a science. Once the  
stove and chimney system are in place, the stove user  
can only vary technique, mostly your timing, to achieve  
good results. If you keep track of your burning habits  
and relate them to their effects on the stove’s operation,  
you’ll be rewarded with good performance and a safe  
system.  
Back-puffing  
Back-puffing results when the fire produces volatile  
gases faster than the chimney draft pulls them out of  
the firebox. The gases back up in the firebox till they’re  
dense enough and hot enough to ignite. If your stove  
back-puffs, you should open up the damper to let the  
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Maintenance  
Let the fire in the stove go out and allow the stove to  
cool completely before beginning any maintenance  
procedure.  
4. Install the glass. Lay the glass on the inner gasket  
with the coated side down (toward the outside of  
the door). Tighten the screws snugly, but loose  
enough to allow for a little movement of the glass  
when the stove is in operation. Overtightening can  
crack the glass immediately or cause it to crack if it  
is unable to expand when hot.  
Care of the Cast Iron Surface  
An occasional dusting with a dry rag will keep the  
painted cast iron of your Intrepid looking new.  
The stove’s paint can be touched up as needed. First,  
clean the areas to be painted with a wire brush. Then,  
touch up the stove with high temperature stove paint.  
Apply the paint sparingly, and keep in mind that two  
light coats of paint are better than a single heavy one.  
Care of Porcelain Enamel Finish  
Use a dry or slightly damp rag or a soft brush to remove  
spills or stains. For difficult jobs that require a cleaning  
agent, use only a kitchen appliance cleaner or polish  
recommended for use on enamel surfaces.  
Cleaning the Glass  
Most of the carbon deposits on the glass will burn off  
during hot fires. However, the ash residue that accumu-  
lates on the glass surface should be removed regularly  
to prevent etching. Follow this procedure to clean the  
glass:  
Rope  
Gasket  
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.  
Rinse the glass thoroughly.  
Dry the glass completely.  
KT160  
Fig. 28 Door glass installation.  
Check the Operation of the  
Primary Air Shutter  
The primary air shutter is visible from the back of the  
stove. The shutter must open and close freely when  
you move the thermostat lever. If it does not, check for  
any obstruction, or for a bound or stretched chain need-  
ing adjustment. (Fig. 29)  
Glass Replacement  
Replace glass only with Part no. 140-1156 right side  
and 140-1157 left side glass panels. The glass panel  
rests on a cushion provided by a rope gasket part no  
1203556, and is held in place by clips. (Fig. 28) The  
glass is IR coated on one side which is marked “THIS  
SIDE OUT”.  
On a cold stove the shutter should be open no more  
than 1/8” (3mm) when the primary air control lever is  
pushed completely to the left (closed), as seen from the  
back of the stove. When the lever is pushed completely  
to the right (open), the shutter should be open to an  
angle of approximately 70° from the stove back.  
1. Remove the door from the stove and place it on a  
sturdy, level work surface. Use a towel to protect  
the porcelain enamel finish.  
The ball chain should measure 216 mm (8¹⁄₂”) from  
connection to the thermostat coil to connection on the  
primary air flap.  
2. Remove the retainer clips. (Two phillips head  
screws on each clip.)  
3. Inspect the gasket. If the window gasket is in good  
condition, you can leave it in place. If you replace  
it, use only Part No. 1203556. Be sure the channel  
around the window opening is clean, and free of  
dust.  
If setting is incorrect, the thermostat coil may be bent or  
broken. Call your Vermont Castings Dealer for assis-  
tance.  
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Tighten the Damper Handle as Needed  
Thermostat Lever  
The damper handle is attached to the damper rod  
with a set screw bearing against a flat spot on the rod.  
Check the set screw periodically for tightness; tighten  
as needed.  
IN  
T
R
E
PI  
D
II  
Damper Adjustment  
When the stove damper is closed, the pressure of the  
rod against the damper plate assures a good seal be-  
tween the damper and the damper housing. Adjustment  
may be needed after a period of time to retain adequate  
pressure.  
Primary Air Shutter  
To make this adjustment, start with the damper in the  
closed and locked position. (Fig. 31) Loosen the 7/16”  
locking nut in the center of the damper. Use a 1/8” Allen  
wrench to turn the Allen screw a full turn clockwise. Test  
the damper for snugness, and continue adjusting the  
Allen screw as needed. Tighten the 7/16” locking nut  
when the damper operates smoothly but firmly.  
ST524  
Fig. 29 The primary air shutter must move freely.  
How to Adjust the Door Latch  
Over time, the gasketing around the doors will com-  
press, and the latch may need adjustment. To adjust  
the latch, loosen the small locking nut, extend the  
striker screw one turn while keeping the striker screw  
from turning. (Fig. 30) Keep making adjustments a little  
at a time until the setting is right.  
Thermostat Cover  
D-plate  
The front doors of the stove should close securely and  
tightly, when the handle is in the closed position. When  
the latch is properly adjusted there should be a slight  
resistance as the doors are moved to the completely  
closed position.  
Damper Actuator  
Rod  
Handle  
Damper  
Pawl  
Small Lock-  
ing Nut  
Locking Nut  
Allen Head Ad-  
justment Screw  
Striker Screw  
ST532  
Fig. 31 Tighten the damper adjustment screw for a snug  
seal.  
Large Lock-  
ing Nut  
Set Screw  
Handle Stub  
ST531  
Fig. 30 Turn the door latch striker screw in or out to tighten or  
loosen the door latch.  
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You should see significantly more smoke after the sec-  
ond step, when the stove damper is open and smoke  
does not go through the combustor. However, do not  
confuse smoke with steam form wet wood; steam dis-  
appears rapidly in the air, smoke does not.  
The Catalytic Combustion System  
Inspection and Cleaning  
This wood heater includes 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, or if the cata-  
lytic element is deactivated or removed.  
If this test indicates a problem, consider other possible  
factors as well, such as the time of year or a change  
in the quality of your fuel. In spring and fall, draft is  
weaker than it is during colder winter weather, and fires  
can burn sluggishly. Small, hot fires are a good solution  
under these conditions.  
Under normal operating conditions the catalytic element  
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.  
“Green” (insufficiently seasoned) wood will burn more  
poorly than properly seasoned fuel. You may have to  
run your stove hotter (with more primary air) to achieve  
good performance if you are burning green or wet  
wood.  
A probe thermostat, passing through the back of the  
stove into the catalytic combustion chamber, automati-  
cally regulates the catalytic combustion air supply.  
Deterioration of the probe may result in decreased  
catalytic combustor performance.  
Also, consider any changes in your burning routine.  
Once you have ruled out any other possible causes for  
decline in performance, you may inspect the combus-  
tor and probe. Wear a dust mask, safety glasses, and  
gloves. Refer to Figure 32 as a guide.  
A poorly-functioning catalytic combustion system will  
result in a loss of heating efficiency, and an increase in  
creosote and emissions.  
1. Remove the andirons.  
2. Reach inside the stove with a pair of pliers and turn  
the two clamps that hold the fireback 90°. Turn the  
left clamp clockwise, and the right clamp counter-  
clockwise.  
The combustor should be visually inspected in place for  
fly ash accumulation and physical damage three times  
per year. Do not remove the combustor unless a more  
detailed inspection is warranted because of diminished  
performance as outlined below, or to inspect the probe  
thermostat.  
3. Grasp the fireback by its vertical ribs and remove it,  
together with the attached throat hood. Pull the left  
side out first.  
The refractory package that houses the catalytic com-  
bustor should be inspected annually for a buildup of flay  
ash, and cleaned if necessary. This may be done during  
examination of the combustor.  
4. Carefully clean the left and right exhaust pockets of  
the refractory package. Use a shop vacuum, ideally  
one with a very fine filter, and be careful to avoid  
damaging the refractory material. This material can  
stand high temperatures, but it is somewhat brittle  
physically.  
The probe thermostat should be inspected annually, or  
more often if decreased catalytic combustion perfor-  
mance is not due to a defective combustor.  
5. Carefully remove the refractory access panel in front  
of the catalytic element.  
When to Suspect a Combustion  
System Problem  
6. Gently slide the catalytic element out of the refrac-  
tory chamber. Check the element and the bottom of  
the chamber for a buildup of fly ash.  
The best way to evaluate the performance of your In-  
trepid II’s combustion system is to watch the amount of  
smoke leaving the chimney - both when the combustor  
has achieved “light-off” and when it has not. Follow this  
procedure:  
7. If the catalytic element is clogged, take it outdoors  
for cleaning. Blow gently through the honeycomb. A  
large amount of fly ash may come out of the ele-  
ment.  
8. Inspect the element. Although small hairline cracks  
will not affect performance, the element should be  
largely intact. If the element is broken in pieces or  
has large sections missing, replace it. Call your  
dealer for a replacement element, part no. 160-  
2521.  
With a fire going and the combustor activated, with the  
damper closed to send smoke through the combustor  
as described in the Operation Section, go outside and  
watch the smoke leaving the chimney.  
Then, open the stove damper and again watch the  
smoke leaving the chimney.  
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6. Remove the damper housing. It is held in place by  
two weld screws and two chrome acorn nuts in the  
back of the stove. Loosen the chrome acorn nuts  
and rotate the tabs to release the damper housing.  
You may find it necessary to remove or loosen the  
thermostat cover to access the one of acorn nuts  
installed behind the cover.  
Refractory Chamber  
INTREPID II  
Catalytic Block  
7. Remove the rear airtube in the back of the stove  
which is held in place with two phillips screws.  
Upper  
Fireback  
with Throat  
Hood  
8. Take out the secondary probe by removing the upper  
phillips screw and sliding the probe out of the hole.  
9. Lift the damaged refractory chamber up and out of  
the firebox.  
Exhaust  
Pockets  
Clamps  
ST533  
10. Reverse the procedure for installing the new refrac-  
tory chamber.  
Refractory Access Panel  
Fig. 32 Removing the catalytic element.  
Replace the Stove Gaskets as Needed  
9. Use a flashlight and a mirror, inserted into one of  
the exhaust pockets of the refractory chamber, to in-  
spect the probe. The end of the probe should extend  
about 1” into the combustion chamber, and should  
not show any signs of deterioration.  
The Intrepid uses fiberglass rope gaskets to make a  
tight seal between some parts. With use, particularly on  
those parts that move, gaskets can become brittle and  
compressed, and can begin to lose their effectiveness.  
These will need periodic replacement.  
Use the stove in your usual manner for two weeks,  
inspecting the chimney and the chimney connector  
frequently.  
The sizes of replaceable gasket are listed below, along  
with their applications.  
Gasket Diameter... And the Parts it Seals  
5/16” wire gasket The griddle to the stove top  
If creosote does not build up as quickly as before, it is  
likely that the performance change was caused by fly  
ash deposits on the catalytic element. However, moni-  
tor the chimney system for a few weeks to ensure that  
proper performance continues.  
5/16”  
The damper to the upper fire  
back; the front doors to the  
stove front; and the door  
halves to each other  
If you continue to find a significant creosote buildup or if  
you continue to see excessive smoke from the chimney,  
the catalytic element will need to be replaced. Call your  
dealer for information about a replacement.  
There is a flat, die-cut gasket between each glass panel  
and its door. See page 25 for information on replacing  
the glass panel or its gasket.  
If you need to change a gasket, first obtain an appropri-  
ate replacement from your Vermont Castings, Dealer.  
NOTE: Use only replacement catalyst, part no. 160-  
2521.  
Wait until the fire 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.  
Replace Refractory Package  
Refer to Figure 32.  
1. Remove andirons.  
The procedure for replacing the gaskets is the same,  
regardless of the gasket location.  
2. Reach inside the stove with a pair of pliers and turn  
the two clamps that hold the fireback 90°. Turn the  
left clamp clockwise and the right clamp counter-  
clockwise. The bolts that hold these clamps are  
tapped into the back as well as capped by chrome  
acorn nuts in the back.  
1. Remove the existing gasket by grasping an end and  
pulling firmly.  
2. Use a wire brush or a screwdriver to clean the chan-  
nel of any remaining cement or bits of gasket. Re-  
move stubborn deposits of cement with a cold chisel  
if necessary.  
3. Grasp the upper fireback by its vertical ribs and re-  
move it, together with the attached throat hood. Pull  
the left side out first.  
3. Determine the correct length of the appropriate-sized  
gasket by laying it out in the channel. Allow an extra  
25-50 mm (1-2”) and mark the spot to be cut.  
4. Carefully remove the refractory access panel in front  
of the catalytic block.  
5. Gently slide the catalytic block out of the refractory  
chamber.  
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.  
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extremely hot fire within the flue system that can dam-  
age the chimney and overheat adjacent combustible  
material.  
5. Lay an unbroken 3 mm (1/8”) bead of gasket cement  
in the newly-cleaned channel. Starting at one end,  
press the gasket into the channel. Ensure a good  
joint where the gasket meets before trimming any  
excess. Do not overlap the gasket ends or leave  
ends with ragged edges.  
If you do have a chimney fire, act promptly to:  
Close the damper and thermostat lever.  
Get everyone out of the house.  
6. Press the gasketed part firmly against its normal  
mating surface to seat the gasket evenly in its chan-  
nel.  
Call the Fire department.  
You should 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 flue collar into the chimney flue. If it  
is not possible to inspect the flue system in this fashion  
the stove must be disconnected to provide better view-  
ing access.  
7. For doors, replace the doors and close them on  
a piece of waxed paper to keep the cement from  
migrating onto the stove front, or tap other parts with  
the rubber mallet (or hammer/block of wood).  
8. Clean excess cement from around the channel. Let  
the cement that holds the new gasket dry thoroughly.  
Adjust the Door if Necessary  
If a significant layer of creosote has accumulated -3 mm  
(1/8”) or more - remove it to reduce the risk of a chim-  
ney fire.  
The door latch or damper mechanism may need adjust-  
ment after you have regasketed them. Initially, it may  
require loosening to accommodate the new gasket; af-  
ter a few weeks, it may need tightening to compensate  
for compression of the new gasket. The directions for  
adjusting the latch and damper are on Page 26.  
Clean the chimney using a brush the same size and  
shape as the flue liner. Flexible fiberglass 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.  
Permanent Gaskets  
The chimney connector should be cleaned by discon-  
necting the sections, taking them outside, and removing  
any deposits with a stiff wire brush. Reinstall the con-  
nector sections after cleaning, being sure to secure the  
individual sections with sheet metal screws.  
Other gaskets seal between non-moving parts, but  
these are not subject to the same wear and deteriora-  
tion 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 qualified service technician. The diameter of the  
gasket that seals these non-moving parts is 5/16”, and  
the areas sealed are the flue collar to the stove back;  
and the lower fireback to the sides. The glass panels  
use a special die-cut flat gasket; refer to Page 23 for  
information on these.  
If you cannot inspect or clean the chimney yourself,  
contact your local Vermont Castings authorized dealer  
or hire a professional chimney sweep.  
Annual Maintenance  
Every spring, at the end of the heating season, perform  
a thorough cleaning, inspection and repair. The stove  
and chimney system should be inspected and main-  
tained by a qualified engineer.  
The Chimney System  
Creosote  
Thoroughly clean the chimney and chimney connec-  
tor.  
Your Intrepid II is designed to reduce creosote buildup  
significantly. However, regular chimney inspection and  
maintenance must still be performed. For safety, good  
stove performance, and to protect your chimney and  
chimney connector, inspect the 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 fire.  
Inspect the chimney for damage and deterioration.  
Replace weak sections of prefabricated chimney.  
Have a mason make repairs to a masonry chimney.  
Inspect the chimney connector and replace any  
damaged sections.  
Check gasketing for wear or compression, and  
replace if necessary. A ‘paper test’ will guide you on  
this. Close and lock the door or damper on a slip of  
paper and then try to pull the paper out. If the paper  
pulls out with little or no resistance, the gasket is not  
snug enough at that spot. If adjusting the damper or  
latch does not result in a seal that makes it hard to  
pull the paper out, replace the gasketing.  
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 flue. As a result, creosote residue accumulates  
on the flue lining. When ignited, this creosote makes an  
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Inspect and clean the catalytic block, and vacuum  
out the ash at the bottom of the back plate after  
removing the lower fireback. Lightly clean the refrac-  
tory assembly that houses the element. Be careful  
not to damage the refractory material, which is very  
fragile.  
Check heat shield screws. Tighten as necessary.  
Clean dust from the inner sides of bottom, rear and  
connector heat shields.  
Remove ashes from the ash pan and replace with  
moisture absorbing material (such as cat litter) to  
keep the stove interior dry. Close the stove door to  
keep cats from using the litter.  
Inspect the secondary probe thermometer.  
Check door and damper handles for tightness. Ad-  
just if needed.  
Touch up the paint on black stoves.  
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Appendix: Catalytic Combustor  
In any chemical reaction, including the combustion  
process, there are certain conditions which must be  
met before the reaction can take place. For example, a  
reaction may require a certain temperature, or a certain  
concentration of the reactants (the combustion gases  
and oxygen), or a certain amount of time. Catalysts,  
though not changed themselves during the reaction,  
have the ability to act at a molecular level to change  
these requirements. In the Intrepid II’s secondary  
combustion chamber the catalyst reduces the tempera-  
ture at which secondary combustion can start from the  
540 - 650° C (1000 - 1200° F) range to the 260 - 315° C  
(500 - 600° F) range, increasing efficiency, and reduc-  
ing creosote and emissions.  
Masking and Poisoning  
While the catalyst itself does not enter into the combus-  
tion process, it is possible for certain elements, such  
as lead and sulfur, to attach to the active sites on the  
surface of the honeycomb. Though the catalyst is still  
there, it is covered, or masked, by the contaminant, and  
cannot function. To avoid this situation, it is important  
not to burn anything in your Intrepid II that is a source  
of these contaminants. Particularly avoid painted or  
treated wood, coal, household trash, colored papers,  
metal foils, or plastics. Chemical chimney cleaners may  
also contain harmful elements. The safest approach is  
to burn only untreated, natural wood.  
The catalytic reaction, though advantageous, does  
have some limitations of its own. Primary among these  
it that the reactants (the gases) come into close physi-  
cal contact with the catalyst itself.  
Flame Impingement  
The catalytic element is not designed for exposure to  
direct flame. If you continually overfire your Intrepid  
II, the chemistry of the catalyst coating may be altered,  
inhibiting the combustion process. A glowing stove part  
at the back of the firebox is a sign of over-firing.  
To ensure the necessary contact, the catalytic element  
in your Intrepid II is composed of a ceramic base in the  
shape of a honeycomb. On each of the honeycomb’s  
many surfaces a coating of the catalyst (usually a  
noble metal such as platinum or palladium) is applied.  
The large surface area exposed in this configuration  
ensures that the combustion gases have the greatest  
opportunity to come in contact with the catalyst.  
Thermal degradation of the ceramic base may also oc-  
cur, causing the element to disintegrate. Stay within the  
recommended guidelines of the Operation section.  
Mechanical Damage  
If the element is mishandled, damage may occur.  
Always treat the element carefully. Remember the  
catalyst is made of a ceramic material; treat it as you  
would fine china. Hairline cracks will not affect the  
performance of the catalyst, as long as the steel sleeve  
holds the element in the proper position.  
Loss of catalytic activity will be apparent in several  
ways. First you may notice an increase in fuel con-  
sumption. Second, there will be a visible increase in the  
rate at which creosote builds up in your chimney con-  
nector system. You may also notice a heavy discharge  
of smoke from the chimney. A number of catalytic  
problems which can cause loss of activity are described  
below:  
Peeling  
Peeling of the surface coat may occur if the catalytic  
element is frequently subjected to excessive tempera-  
tures. Follow the operating instructions carefully to  
avoid this type of damage.  
Blockage  
While the honeycomb pattern ensures good contact, it  
also increases the resistance to flow of the combustion  
gases, and, because of the many surfaces, provides  
more places for creosote and fly ash to deposit. It is  
important to follow the operating instructions in order  
to minimize these deposits, and to periodically inspect  
your catalyst for signs of blockage.  
Every CFM Corporation product is equipped with either  
a Corning “Long-Life”® or a Technical Glass Products  
“Honeycomb”®. The products are equivalent. If for any  
reason you must ship your catalytic element, remem-  
ber its fragile nature. Place the element in a plastic  
bag, and package it with a generous amount of shock  
absorbing material.  
26  
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Intrepid II Woodburning Stove  
17  
16  
2
1
4
18  
3
5
6
20  
43  
43  
21  
22  
21  
28  
26  
25  
27  
8
7
24  
29  
30  
22a  
31  
9
23  
32  
10  
39  
36  
33  
38  
73  
9
40  
41  
11  
12  
34  
42  
37  
12  
13  
35  
15  
9
0966  
CFM Corporation reserves the right to make changes in design, materials, specifications, prices and discontinue colors and products at any time,  
without notice.  
Intrepid II Woodburning Stove  
Model 1990CE  
Item Description  
Part Number  
Item Description  
Part Number  
1. Secondary Air Cover  
2. Flue Collar  
3. Back Panel  
4. Damper Rod  
5. Damper Clip  
6. Damper  
7. Damper Housing  
8. Throat Hood  
9. Weld Screw  
1306762  
See Chart Pg. 29  
1308662  
12. 3/8” - 16 x 1¹⁄₂” Hex Bolt  
13. Lower Fireback  
15. Rear Air Tube  
16. Thermostat Cover  
17. Damper Handle Assembly  
18. Friction Spring  
20. Thermostat Clip  
21. Ball Chain Fitting (2)  
22. Ball Chain  
22a. Thermostat Assembly  
23. Primary Air Flap  
1201456  
1306704  
1308658  
1306711  
5004265  
1201846  
1601408  
1201972  
1201960  
5005506  
1306710  
1602523  
1306725  
1306701  
1306702  
30001649  
1201583  
1306703  
10. Upper Fireback  
11. Fireback Clamp  
1306724  
27  
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Intrepid II Woodburning Stove  
44  
45  
66  
47  
48  
46  
51  
49  
56  
64  
63  
65  
50  
62  
68  
53  
54  
72  
57  
61  
67  
60  
52  
55  
57  
59  
58  
CFM Corporation reserves the right to make changes in design, materials, specifications, prices and discontinue colors and products at any time,  
without notice.  
Intrepid II Woodburning Stove  
Model 1990CE (continued)  
Item Description  
24. Air Flap Pin  
25. Clip  
26. #10-24 x 3/8” Pan Head Bolt  
27. #10-24 x 1/4” Pan Head Bolt  
28. Secondary Probe Assembly  
29. Secondary Air Link  
30. Phillips Bolt, 1/4”-20 x 5/8”  
31. Shim Ring  
Part Number  
Item Description  
Part Number  
1601551  
1601396  
1200983  
1200980  
1601489  
1601486  
1200896  
1201986  
1601490  
1602527  
30001153  
35. Refractory Access Panel  
36. Andiron  
37. Left Insert  
38. Grate  
39. Right Insert  
40. Ashpan Only  
41. Ashpan Front Only  
42. Ashpan Handle  
43. Damper Tab  
44. Griddle  
1602516  
1306717  
1308651  
1308652  
1308650  
1400951  
1306493  
30000973  
1601488  
1306356  
1301832  
32. Secondary Air Flap  
33. Refractory Chamber w/ Access Panel  
34. Catalyst Block  
45. Right Griddle Quad  
28  
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Intrepid II Woodburning Stove  
Intrepid II Woodburning Stove  
Model 1990CE (continued)  
Item Description  
46. Left Griddle Quad  
47. Top  
48. Right Side  
49. Bottom  
50. Left Side  
51. Leg  
52. Tie Rod  
53. Leg Bolt, 3/8”-16 x 1” Hex Bolt  
54. Right Air Manifold  
55. Left Air Manifold  
56. Handle Holder  
57. Front  
58. Left Door  
59. Left Glass Panel2  
60. Right Door  
61. Right Glass Panel2  
62. Handle Bolt, 1/4”-20 x 3³⁄₈1  
63. Ceramic Handle1  
64. Handle Insert1  
65. Front Door Handle  
66. Griddle Handle Assembly  
67. Gasket, Fiberglas 3/16” Rnd, Blk  
68. Latch Assembly  
69. Glass Clips, Bottom  
70. Glass Clips, Side  
71. Glass Clips, Top  
72. Nut, Jam  
Part Number  
1301807  
Please record the following information  
for future reference.  
See Chart Pg. 29  
See Chart Pg. 29  
See Chart Pg. 29  
See Chart Pg. 29  
See Chart Pg. 29  
1601640  
Stove Serial No. _____________________  
Dealer ____________________________  
__________________________________________  
__________________________________________  
Phone _____________________________  
Date Purchased _____________________  
1201432  
1308654  
1308653  
1600600  
See Chart Pg. 29  
See Chart Pg. 29  
1401157  
See Chart Pg. 29  
1401156  
Installer ___________________________  
__________________________________________  
__________________________________________  
Phone _____________________________  
Date Installed _______________________  
1201294  
20006381  
30002714  
30002719  
30002775  
1203556  
5004025  
30000832  
NOTES:  
1. Part of assembly 0004345.  
2. The glass panels have a heat-reflective coating on the  
outside and are not interchangeable.  
30000833  
30000834  
1203290  
73. Ashpan Assembly  
5003522  
Shell Enamel Parts - Intrepid II Model 1990  
Enamel  
Color  
Left  
Side  
Right  
Side  
Flue  
Collar  
Left Door Right Door Single  
Top  
Bottom  
Front  
Only  
Only  
Leg  
Classic  
Biscuit  
Bordeaux 2328657  
Chestnut  
1308657  
1306764 1308656 1308655 1306561 1308647  
1308649  
1308648 1306333  
30003178 30003182  
2328648 2326333  
30003180 30003174 30003176 30003175 30003181 30003177 30003179  
2326764 2328656 2328655 2326561 2328647  
2328649  
Brown  
Ebony  
30003190 30003184 30003186 30003185 30003191 30003187 30003189  
30003200 30003194 30003196 30003195 30003201 30003197 30003199  
30001888 30003192  
30003198 30003202  
Forest  
Green  
2318657  
2316764 2318656 2318655 2316561 2318647  
2318649  
2318648 2316333  
Midnight  
Blue  
Sand  
2378657  
1328657  
2376764 2378656 2378655 2376561 2378647  
1326764 1328656 1328655 1326561 1328647  
2378649  
1328649  
2378648 2376333  
1328648 1326333  
Suede  
Brown  
Vt.Classic  
Green  
30002571 30002567 30002569 30002568 30002508 30002570 30002506  
30003210 30003204 30003206 30003205 30003211 30003207 30003209  
30002505 30002509  
30003208 30003212  
29  
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Intrepid II Woodburning Stove  
30  
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Warranty  
Exclusions & Limitations  
1. This warranty is transferable; however, proof of original retail pur-  
chase is required.  
Limited 3 Year Warranty  
CFM Corporation warrants that this woodburning stove will be free of de-  
fects in material and workmanship for a period of three years from the date  
you receive it, except that the catalyst, thermostat assembly, handles, glass  
door panels, cement, and gasketing shall be warranted as described below.  
2. This warranty does not cover misuse of the stove. Misuse includes  
overfiring which will result if the stove is used in such a manner as  
to cause one or more of the plates to glow red. Overfiring can be  
identified later by warped plates and areas where the paint pigment  
has burned off. Overfiring in enamel fireplaces is identified by bub-  
bling, cracking, chipping and discoloration of the porcelain enamel  
finish. CFM Corporation offers no warranty on chipping of enamel  
surfaces. Inspect your woodburning stove prior to accepting it for  
any damage to the enamel.  
CFM Corporation will repair or replace, at its option, any part found  
to be defective upon inspection by a Vermont Castings, Authorized  
Dealer. The customer must return the defective part or the stove, with  
shipping prepaid, to the Authorized Dealer or pay for any Authorized  
Dealer in-home travel fees or service charges for in-home repair work.  
It is the dealer’s option whether the repair work will be done in the cus-  
tomer’s home or in the dealer’s shop. If, upon inspection, the damage is  
found to be the fault of the manufacturer, repairs will be authorized at no  
charge to the customer for parts and/or labor.  
3. This warranty does not cover misuse of the stove as described  
in the Owner’s Guide, nor does it cover an stove which has been  
modified unless authorized by a CFM Corporation representative in  
writing. This warranty does not cover damage to the stove caused  
by burning salt saturated wood, chemically treated wood, or any fuel  
not recommended in the Owner’s Guide.  
Any woodburning stove or part thereof that is repaired or replaced dur-  
ing the limited warranty period will be warranted under the terms of the  
limited warranty for a period not to exceed the remaining term of the  
original limited warranty or six (6) months, whichever is longer.  
4. This warranty does not cover a stove repaired by someone other  
than a Vermont Castings Authorized Dealer.  
Limited 1 Year Warranty  
5. Damage to the unit while in transit is not covered by this warranty  
but is subject to a claim against the common carrier. Contact  
Vermont Castings Authorized Dealer from whom you purchased  
your stove or CFM Corporation if the purchase was direct. (Do not  
operate the stove as this may negate the ability to process the claim  
with the carrier.)  
The following parts of the woodburning stove are warranted to be free  
of defects in material and workmanship for a period of one year from  
the date you receive it: The thermostat assembly, handles, glass door  
panels, cement, and gasketing. Any of these items found to be defec-  
tive will be repaired or replaced at no charge, upon the return of the part  
with postage prepaid to a Vermont Castings Authorized Dealer.  
6. Claims are not valid where the installation does not conform to local  
building and fire codes or, in their absence, to the recommendations  
in our Owner’s Guide.  
Any part repaired or replaced during the limited warranty period will  
be warranted under the terms of the limited warranty for a period not  
to exceed the remaining term of the original limited warranty or six (6)  
months, whichever is longer.  
7. The salt air environment of coastal areas, or a high-humidity en-  
vironment, can be corrosive to the porcelain enamel finish. These  
conditions can cause rusting of the cast iron beneath the porcelain  
enamel finish, which will cause the porcelain enamel finish to flake  
off. This warranty does not cover damage caused by a salt air or  
high-humidity environment.  
Limited Catalyst Warranty  
The catalyst will be warranted for a six year period as follows: If the  
original catalyst or a replacement catalyst proves defective or ceases to  
maintain 70% of its particulate emission reduction activity (as measured  
by an approved testing procedure) within 24 months from the date the  
stove is received, the catalyst itself will be replaced free.  
8. CFM Corporation shall have no obligation to enhance or update any  
unit once manufactured.  
From 25 - 72 months a pro-rated credit will be allowed against a re-  
placement catalyst and the cost of labor necessary for its installation at  
the time of replacement.  
IN NO EVENT SHALL CFM CORPORATION BE LIABLE FOR INCI-  
DENTAL AND CONSEQUENTIAL DAMAGES. ALL IMPLIED WAR-  
RANTIES, INCLUDING THE IMPLIED WARRANTIES OF MERCHANT-  
ABILITY AND FITNESS, ARE LIMITED TO THE DURATION OF  
THIS WRITTEN WARRANTY. THIS WARRANTY SUPERCEDES ALL  
OTHER ORAL OR WRITTEN WARRANTIES.  
For stove purchases made after June 30, 1990, a third year  
(25 - 36 months) of no charge replacement will be made when combus-  
tor failure is due to thermal degradation of the substrate (crumbling of  
ceramic material). The customer must pay for any in-home travel fees,  
service charges, or transportation costs for returning the stove to the  
Authorized Dealer.  
Some states do not allow the exclusion or limitations of incidential and  
consequential damages or limitations on how long an implied warranty  
lasts, so the above limitations may not apply to you. This warranty gives  
you specific rights and you may have other rights which vary from state  
to state.  
Amount of Time  
Since Purchase  
0 - 24 months  
25 - 36 months  
37 - 48 months  
49 - 60 months  
61 - 72 months  
Credit Towards  
Replacement Cost  
100%  
50 %  
30%  
20%  
10%  
How to Obtain Service  
If a defect is noted within the warranty period, the customer should  
contact a Vermont Castings Authorized Dealer or CFM Corporation if  
the purchase was direct with the following information:  
Any replacement catalyst will be warranted under the terms of the  
catalyst warranty for the remaining term of the original warranty. The  
purchaser must provide the following information in order to receive a  
replacement catalyst under the terms of this limited warranty:  
1. Name, address, and telephone number of the purchaser.  
2. Date of purchase.  
3. Serial number from the label on the back.  
4. Nature of the defect or damage.  
1. Name, address and telephone number.  
2. Proof of original purchase date.  
3. Date of failure of catalyst.  
5. Any relevant information or circumstances, e.g., installation,  
mode of operation when defect was noted.  
A warranty claim will then start in process. CFM Corporation reserves  
the right to withhold final approval of a warranty claim pending a visual  
inspection of the defect by authorized representatives.  
4. Any relevant information or circumstances regarding determina-  
tion of failure.  
5. In addition, the owner must return the failed catalyst.  
31  
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CFM Corporation  
2695 Meadowvale Blvd. • Mississauga, Ontario, Canada L5N 8A3  
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