Unforgettable Fire Katydid User manual

Owner’s Manual
Katydid™ Wood Stove
Manufactured by
Unforgettable Fire, LLC
Unforgettable Fire

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Save These Instructions
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Please read this entire manual before you install your Katydid™ wood stove heater. Failure to
follow these instructions may result in property damage, bodily injury, or even death.
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Manufacturer’s Contact Information:
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Unforgettable Fire, LLC
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P.O. Box 13491
Burton, Washington 98013
U.S.A.
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Phone: 1-855-USA-STOVE
[email protected]
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Katydid™ Stove Owner’s Manual www.UnforgettableFireLLC.com

Testing Information........................................................................................................................................3
Unpacking Your Katydid™.............................................................................................................................3
General Safety Precautions...........................................................................................................................3
Drafting..........................................................................................................................................................4
Negative Pressure WarninNegative Pressure Warning..........................................................................................................................5
Creosote .......................................................................................................................................................5
Fuel................................................................................................................................................................5
Fuel Storage..................................................................................................................................................5
Clearance to CombustiblesClearance to Combustibles ...........................................................................................................................6
Floor Protection.............................................................................................................................................6
Alcove Clearances........................................................................................................................................6
General Information On Chimney & Connectors...........................................................................................6
Connecting to a Manufactured Chimney......................................................................................Connecting to a Manufactured Chimney.......................................................................................................6
Additional Considerations for Mobile Home Installations in the U.S. and Canada........................................7
Connecting to a Masonry Fireplace Chimney................................................................................................7
Relining a Masonry Chimney.........................................................................................................................8
Starting & Maintaining a Fire.................................................................................................Starting & Maintaining a Fire.........................................................................................................................8
Ash Disposal.................................................................................................................................................9
Break-in Period..............................................................................................................................................9
Troubleshooting...........................................................................................................................................10
Protecting the Glass WindoProtecting the Glass Window......................................................................................................................10
Cleaning the Glass Window.........................................................................................................................10
Replacing the Damaged Glass.....................................................................................................................11
Replacing the Door Gasket..........................................................................................................................11
Do’s.............................................................................................................................................................Do’s..............................................................................................................................................................11
Don’ts...........................................................................................................................................................12
Replacement Parts......................................................................................................................................13
Specifications...............................................................................................................................................13
Manufacturer’s Warranty.............................................................................................................................Manufacturer’s Warranty..............................................................................................................................13
Installation Diagrams...................................................................................................................................14
TABLE OF CONTENTS

TESTING INFORMATION
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Model: Katydid™
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Report # 0501WS002S
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This manual describes the operation of the
Katydid™ non-catalytic wood stove heater. This
heater meets the U.S. Environmental Protection
Agency’s emission limits for wood heaters sold on
or after July 1, 2012.
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The Katydid™ wood stove heater has been
developed and constructed in accordance with all
the requirements of UL 1482-2011, ULC-S627-00
and HUD Standards and is listed by OMNI-Test
Laboratories, Inc., Portland, Oregon.
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The Katydid™ wood stove heater has been
approved for residential, mobile homes, and
alcove installations.
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UNPACKING YOUR KATYDID™
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1. Your Katydid™ wood stove heater comes
completely preassembled. It has been bolted to
a wooden crate with 3/8-inch bolts and
wrapped in a plastic film to protect the finish
during shipping, all of which must be removed
prior to starting your first fire.
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2. Be sure to remove all packing materials from
the interior of the Katydid™ wood stove heater
prior to use.
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3. Prior to use, be sure the vermiculite insulating
panels are in place to insulate the walls of the
combustion chamber and that the fire bricks
are in place to insulate the base of the
combustion chamber.
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4. Burn wood directly on installed fire bricks. Do
not use a grate or otherwise raise the fire within
the combustion chamber.
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GENERAL SAFETY PRECAUTIONS
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1. When this room heater is not properly installed,
a house fire may result. To reduce the risk of
fire, follow the installation instructions. Never
utilize “make-shift” compromises during
installation. Contact local building or fire
officials about restrictions and installation
inspection requirements in your local area.
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2. Wear gloves during installation to avoid injury
from possible sharp objects on the stove, or
other components.
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3. This heater is certified to burn dry, well-
seasoned wood. Burning wet wood will
drastically reduce the efficiency of your
Katydid™ wood stove heater, and produce
excessive amounts of smoke and creosote
buildup, a cause of dangerous chimney fires.
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4. Do not operate your Katydid™ wood stove
heater with the door open. Not only will your
Katydid™ wood stove heater fail to achieve
secondary combustion and not operate
properly, but the potential for stray embers to
leave the combustion chamber is a safety
hazard.
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5. BEFORE OPENING THE DOOR, THE DRAFT
CONTROL MUST BE FULLY OPENED (PULL
KNOB FORWARD) TO AVOID POSSIBLE
COMBUSTION FLASH AS THE DOOR IS
OPENED, CAUSED BY THE IGNITION OF
HOT VOLATILE GASES. See Diagrams #1 and
#2.
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6. DO NOT CONNECT THIS UNIT TO A
CHI MNE Y FL UE SE RV ING A NOT HER
APPLIANCE.
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7. NEVER USE GASOLINE, GASOLINE-TYPE
LANTERN FUEL, KEROSENE, CHARCOAL
LIGHTER FLUID, OR SIMILAR LIQUIDS TO
START OR “FRESHEN UP” A FIRE IN THIS
HEATER. KEEP ALL SUCH LIQUIDS WELL
AWAY FROM THE HEATER WHILE IT IS IN
USE.
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8. DO NOT BURN GARBAGE OR FLAMMABLE
FLUIDS SUCH AS GASOLINE, NAPTHA, OR
ENGINE OIL.
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9. DO NOT USE CHEMICALS OR FLUIDS TO
START THE FIRE.
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10.While burning, fuel utilizes the oxygen from the
air in the room. Be sure to allow an adequate
amount of fresh air into the room where the
stove is burning. Your Katydid™ wood stove
heater is equipped with an outside air inlet at
the bottom of the stove for this purpose. The
outside air intake is a sealed system to prevent
insects, rodents, and cold air from entering the
room when the Katydid™ stove is not in use.
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11. The outside surface of the stove will be very
hot when in use, and could be a source of
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Katydid™ Wood Stove www.UnforgettableFireLLC.com
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ignition. Be sure to keep all furnishings, such
as drapes and other flammable items away
from the stove. Extreme caution must be used
when drying clothing or other items above the
stove.
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12. STOVE IS HOT WHILE IN OPERATION.
KEEP CHILDREN, CLOTHING, AND
FURNITURE AWAY. CONTACT MAY CAUSE
BURNING OF SKIN OR COMBUSTIBLES.
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13. Do not allow children to play near the stove
without close supervision.
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14. Do not touch the stove while it is burning
except to reload fuel or adjust the air control.
Use extreme caution while the unit is in use.
Surface temperatures become extremely hot
and can cause severe burns.
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15. Do not allow anyone to operate the stove who
is not well familiar with the operating
instructions.
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16. Do not alter damper adjustment range beyond
manufacturer’s recommendations for increased
firing. Attempts to achieve output rates that
exceed stove design specifications can result
in permanent damage to the stove. NEVER
leave your stove unattended on high burn
rates. This may cause over-firing. Over-firing
this stove may cause a house fire. If the stove
glows red, you are over-firing.
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17. Use smoke detectors and carbon monoxide
detectors near your stove and in sleeping
areas. Carbon monoxide is a colorless,
odorless, and tasteless gas that is produced as
a byproduct of combustion. Breathing carbon
monoxide in sufficient concentrations can be
fatal to humans and animals.
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18. Small puffs of smoke emitted from the door
when reloading the combustion chamber with
fuel may trigger a smoke alarm. If this occurs, it
may be desirable to locate smoke detectors
closer to sleeping rooms and further from the
Katydid™ wood stove heater.
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19. Always keep a fire extinguisher close to the
stove for safety, and know how to use it.
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20. Inspect your chimney at least once a month
during the heating season for creosote buildup.
Any accumulation over 1/8 inch (3 mm) must
be removed by a professional chimney sweep.
Do no t a t t em p t t o “ bu r n o u t” he a v y
accumulations of creosote with a hot fire as this
can cause a house fire, damage to the chimney
system, injury, or even death. If large
accumulations are occurring, please review
your burning procedures.
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21. If a creosote fire should develop in your
chimney, contact the fire department
immediately, then make attempts to control the
fire until help arrives. Applying small amounts
of water, approximately one cup (0.25 liters) at
a time to the firebox will cause steam blasts to
enter the chimney and stop the fire. Be careful
not to be in a position where steam can cause
bodily harm. If a run-away fire should develop,
the door and draft control should be shut so as
to reduce the amount of oxygen available to
the fire. This should cause the fire to die down,
as the oxygen is used up. After any chimney
fire, a professional chimney sweep should
inspect the entire system before further use.
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22. Please read this entire manual before you
install your new Katydid™ wood stove heater.
Failure to follow instructions may result in
property damage, bodily injury, or even death.
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DRAFTING
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1. The Katydid™ wood stove heater is dependent
upon a properly functioning chimney system for
venting combustion gases, as well as bringing
fresh air into the firebox for combustion of
wood fuel. It is important to use the correct
diameter and proper height of chimney to make
sure your Katydid™ wood stove heater
functions as it was designed.
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2. The Katydid™ wood stove heater is certified to
use 4-inch (10.16 cm) double-wall stainless
steel pipe as a connector from the flue outlet
on the stove. We recommend TYPE PL All Fuel
Vent by Simpson DuraVent, available at most
wood stove shops. A minimum of 10-feet
(304.80 cm) in height is recommended. Note
that joints must be secured with at least 3 self-
tapping screws per joint. In additional ALL wall,
ceiling, attic, and roof penetrations must
include approved wall thimble and/or rafter
radiation shields, using 6-inch (15.24 cm). Type
103 HT (U.S.), ULC629 (Canada) Class-A as a
conduit in any and all pass through areas, in
accordance with UL-Listed wood stove
installations, and must meet all county and
state requirements for such installations.
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3. Some situations may require alternative
venting. Your Katydid™ stove dealer will be
able to assist you in analyzing your specific
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Katydid™ Wood Stove www.UnforgettableFireLLC.com
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needs. Alternatively, you may also email
[email protected] for further
information. If your Katydid™ wood stove
heater is difficult to start, or smoke escapes
into the room when the door is open, your
installation may require a longer chimney to
improve the draft uptake. Remember that slow
or inadequate draft equals poor combustion
and possible smoking problems.
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4. DO NO T CO N NE C T TO O R U SE IN
CONJUNCTION WITH ANY AIR
DI ST RI BU TI ON D UC TW OR K UNLESS
SPECIFICALLY APPROVED FOR SUCH
INSTALLATIONS.
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NEGATIVE PRESSURE WARNING
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1. This appliance is not designed to be operated
in a negative pressure. Very air-tight homes,
with strong kitchen exhaust fans, or furnace
cold air returns located in close proximity to the
stove, may cause negative pressure in the
same room as the stove. This can cause
dangerous back drafting of the stove and
chimney joints, enabling combustion by-
products (smoke) to “spill” into the home. The
use of an outside air kit will most likely not
solve this issue, as the negative pressure is not
caused by the stove or chimney system.
Unforgettable Fire, LLC assumes no liability for
damages resulting from negative pressure as
described above.
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CREOSOTE
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1. When wood is burned slowly, it produces tar
and other organic vapors. The organic vapors
combine with expelled moisture to form
creosote. The creosote vapors condense in
the relatively cool chimney flue associated with
a slow burning fire. As a result, creosote
residue accumulates on the flue lining. When
ignited, this creosote can result in an extremely
hot fire.
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2. The chimney should be inspected periodically
during the heating season to determine if a
creosote build-up is occurring. If a significant
layer of creosote has accumulated (3 mm or
more) it should be removed to reduce the risk
of a chimney fire.
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3. Establish a routine for monitoring your flue,
wood burning, and firing techniques. Check
weekly for creosote build-up until experience
shows how often you need to clean the
chimney to insure safe operation. Be aware
that the hotter the fire, the less creosote is
deposited. You may find that weekly cleaning
may be necessary in mild weather, even
though monthly cleaning may be sufficient in
the coldest months. Contact your local
municipal or provincial fire authority for
information on how to handle a chimney fire.
Have a clearly understood plan to handle a
chimney fire.
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FUEL
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1. The Katydid™ wood stove heater is certified to
burn dry, well-seasoned wood. When gathering
your fuel, it is important to select hard wood
known to have a high BTU content, whenever
possible. The wood should be stored off the
ground in a wood shed, which is designed to
allow plenty of air flow through the stacks, and
stored this way for a minimum of 6 months; 12
months is recommended.
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2. The use of tarps and storing wood on the
ground are strongly discouraged. It must be
understood that wood cannot be left in a wet or
damp area, as it will never become completely
seasoned. Your Katydid™ wood stove heater
will not operate at the efficiency level for which
it was designed unless you use properly
seasoned wood at 20% moisture content or
less. We recommend that you purchase and
use a moisture meter from your local stove
shop to be sure your wood is properly cured.
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3. DO NOT BURN GARBAGE OR FLAMMABLE
FLUIDS SUCH AS GASOLINE, NAPHTHA, OR
ENGINE OIL. THESE RELEASE TOXIC
FUMES INTO THE AIR, AND CAN VOID
YOUR WARRANTY.
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4. DO NOT USE CHEMICALS OR FLUIDS TO
START THE FIRE.
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FUEL STORAGE
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WARNING: CANADA: FUEL STORAGE WITHIN
THE CLEARANCE PARAMETERS OUTLINED IN
THIS MANUAL IS EXPRESSLY FORBIDDEN
UNDER CANADIAN LAW DUE TO THE HAZARD
POTENTIAL OF STRAY EMBERS. See: Diagram
#6.
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WARNING: U.S.A: FUEL STORAGE WITHIN
THE CLEARANCE PARAMETERS IS NOT
RECOMMENDED FOR INSTALLATIONS WITHIN
THE UNITED STATES DUE TO THE HAZARD
POTENTIAL OF STRAY EMBERS. See: Diagram
#6.
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Katydid™ Wood Stove www.UnforgettableFireLLC.com
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CLEARANCE TO COMBUSTIBLES
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WARNING; BE ABSOLUTELY SURE THAT THE
DISTANCE BETWEEN THE KATYDID™ WOOD
STOVE HEATER AND THE SURFACE OF ANY
COMBUSTIBLE CONSTRUCTION IS NOT LESS
THAN DETAILED IN THIS MANUAL.
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FLOOR PROTECTION
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U.S.A. - The floor underneath, to the sides, and to
the rear of the Katydid™ wood stove heater must
be protected by a minimum of 3/8-inch (1 cm)
thick UL-1618 Type-1 floor pad, which is made
from non-combustible material. The floor pad
must extend 18-inches (45.72 cm) in front of the
loading door, 8-inches (20.32 cm) to the sides,
and 12-inches (30.48 cm) to the rear, or to the
wall, whichever is greater. One must also take
into consideration with the rear-mounted flue
option that the PL type vent pipe must have a 6-
inch (15.24 cm) clearance from combustible
materials, as well. See Diagram #6.
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Canada - The floor underneath, to the sides, and
to the rear of the stove must be protected by a
minimum of 3/8-inch (1 cm) thick UL-1618 Type-1
floor pad, which is made from non-combustible
material. The floor pad must extend 18-inches
(45.72 cm) in front of the loading door, 8 inches
(20.32 mm) to the sides and 12-inches (30.48 cm)
to the rear, or to the wall, whichever is greater.
One must also take into consideration with the
rear-mounted flue option that the vent pipe must
have a 6-inch (15.24 cm) clearance from
combustible materials, as well. See Diagram #6.
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ALCOVE CLEARANCES
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The Katydid™ wood stove heater is certified for
use in alcoves with a minimum of 54-inches
(137.16 cm) wide up to a maximum of 48-inches
(121.92 cm) deep, with a minimum 72-inch
(182.88 cm) ceiling.
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GENERAL INFORMATION ON
CHIMNEY & CONNECTORS
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1. The Katydid™ wood stove heater is certified to
use 18 gauge, 4-inch (10.16 cm) rigid double-
wall all-fuel stainless steel pipe as a connector
from the flue outlet on the stove. We
recommend TYPE PL All Fuel Vent by Simpson
DuraVent, available at most wood stove shops.
A minimum of 10-feet (304.80 cm) is
recommended. Note that joints must be
secured with at least 3 self-tapping screws per
joint. In addition, ALL wall, ceiling, attic, and
roof penetrations must include approved wall
thimble and/or rafter radiation shields, using 6-
inch (15.24 cm) Type 103 HT (U.S.), ULC S629
(Canada) Class-A as a conduit in any and all
pass through areas, in accordance with UL-
Listed wood stove installations, and must meet
all county and state requirements for such
installations.
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Canada - No chimney connector shall pass
through an attic or roof space, closet, or similar
concealed space, or a floor, or ceiling. Where
passage through a wall, or partition of
combustible construction is desired, the
installation shall conform to CAN/CSA-B365,
Installation Code for Solid-Fuel-Burning
Appliances and Equipment.
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CONNECTING TO A MANUFACTURED
CHIMNEY
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1. See Diagram #10.
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2. When planning for the placement of your
Katydid™ wood stove heater, consider not only
the footprint of the Katydid™ itself, and the
required safety clearance from combustibles,
but also the flow of traffic in the room. In most
cases, the obvious location for your Katydid™
wood stove heater would be in the central part
of the house, to provide for more even heat
distribution.
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3. Refine your choice of location based upon
venting requirements and the orientation of
your home’s skeletal frame. You must allow for
chimney access through the ceiling and roof,
and for outside air intake, without interference
of studs and/or rafters, in order to maintain the
structural integrity of the building.
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4. Install a heat-resistant flood pad. See Floor
Protection requirements on Page #5 & 6 and
Diagram #6.
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5. Align the stove so that the flue opening will be
directly beneath the area where you will cut the
hole in the ceiling and roof for the venting pipe,
while meeting required safety clearances on all
sides. Assemble the PL pipe for a “test fitting”
and check to see that the pipe is plumb. Mark
the ceiling accordingly and cut the holes for the
chimney to pass through the ceiling, attic, and
roof.
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6. Prepare the 4-inch (10.16 cm) rigid double wall
PL Series All-Fuel Vent by Simpson DuraVent
for final installation by securing any joints with
a minimum of 3 self-tapping screws per joint.
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7. From the ceiling up through the roof, install
Type 103HT (U.S.), ULC629 (Canada) Class-A
UL-Listed factory built thimble and chimney
pipe, and carefully follow all manufacturer’s
installation instructions.
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8. Caution: Never utilize make-shift compromises
during installation. Never install any wood
stove or chimney systems outside of the
provisions outlined in the NFPA-211 safety
standards.
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Canada - The Katydid™ wood stove heater is
required to be connected to a factory built
ch imney con fo rm ing to CAN/ UL C- S629,
Standards for 650 degrees Celsius Factory Built
Chimneys. Installation of the chimney should
allow for possible removal of chimney to facilitate
transportation of the mobile home due to size and
height restrictions of roadways.
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ADDITIONAL CONSIDERATIONS FOR
ALL MOBILE HOME INSTALLATIONS
IN THE U.S. AND CANADA
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1. The Katydid™ wood stove heater must be
bolted to the mobile home chassis, using the
three pre-drilled holes at the base of the
Katydid™ wood stove heater, and four 1/2-inch
hex head bolts of 1/4-inch diameter and 2-1/2
inches long, or the metric equivalent, which
may be purchased at a hardware store.
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2. All mobile home installations require an outside
air kit (OAKP or OAKL) to supply the Katydid™
wood stove heater with a supply of outside
combustion oxygen. The Katydid™ wood stove
heater has a 3-inch (7.62 cm) air inlet in the
base of the stove to accommodate such a kit.
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3. Take care to choose a location for the outside
air inlet which will not interfere with bolting the
Katydid™ wood stove heater to the mobile
home chassis. To discourage entry by insects
and rodents, the outside air intake should be
protected by a fine mesh screen on the
external end.
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4. All mobile home installations require that the
Katydid™ wood stove heater must be
electrically grounded to the chassis, and the
chimney must include a spark arrester cap.
5. CAUTION: THE STRUCTURAL INTEGRITY
OF THE MOBILE HOME FLOOR, WALL, AND
CEILING/ROOF MUST BE MAINTAINED.
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6. C A U T I O N : U S E A L L I N S TA L L AT I O N
COMPONENTS AS SPECIFIED IN THIS
MANUAL. NEVER SUBSTITUTE WITH
OTHER COMPONENTS.
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7. CAUTION: THE INTEGRITY OF ANY VAPOR
BARRIERS MUST BE MAINTAINED.
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8. WARNING: DO NOT INSTALL IN SLEEPING
ROOM.
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CONNECTING TO A MASONRY
FIREPLACE CHIMNEY
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1. See Diagram #8.
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2. The Katydid™ wood stove heater is certified to
use 18 gauge, 4-inch (10.16 cm) single-wall
stainless steel flexible pipe as a connector only
within a masonry fireplace chimney. All other
Katydid™ wood stove heater installations
should follow the instructions appropriate to the
specific installation as outlined in this owner’s
manual. Never utilize make-shift compromises
during installation.
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3. Clean out the fireplace and remove any grates.
From the rooftop, remove the cap from the
masonry chimney and check for any obstacles
in the masonry flue.
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4. Using gloves to protect your hands, unroll 4-
inch stainless steel flexible pipe, on the ground
outside of house, and straighten it as much as
possible to make it easier to insert it through
the masonry chimney.
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5. Climb onto the roof and remove the cap from
the top of the masonry chimney and check for
any obstacles in the masonry flue.
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6. Begin sliding the 4-inch stainless steel flexible
pipe into the masonry chimney. Due to the
small 4-inch diameter of the stainless steel
flexible pipe, little resistance should be felt as it
passes through the masonry chimney. It may
be helpful to have an installation partner down
below, to assist with sliding the flexible pipe
through the damper area.
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7. From inside the house, adjust the 4-inch
diameter of the stainless steel flexible pipe to a
90-degree curve and pull it to the correct length
for attachment to the Katydid™ wood stove
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heater. Remove any protective tape from the
end of the 4-inch stainless steel flexible pipe
and fasten the flexible pipe to the Katydid™
wood stove heater, using a minimum of three
self-tapping screws per joint.
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8. From the rooftop, pull the excess 4-inch
stainless steel flexible pipe from the top of the
masonry fireplace chimney, leaving sufficient
length to fit into the chimney cap. Use a
hacksaw or other cutting device to cut the
stainless steel flexible pipe. Wear gloves, to
prevent cuts from sharp metal edges. Secure
to the chimney cap with a minimum of three
self-tapping screws.
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9. When connected, use 3M™ Fireblock sealant
(or equivalent) and concrete screws to secure
the chimney cap in place.
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10. Install fiberglass insulation around the damper
area inside the fireplace to prevent unwanted
drafts from entering the house through the
chimney.
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11. Caution: Never utilize make-shift compromises
during installation. Never install any wood
stove or chimney systems outside of the
provisions outlined in the NFPA-211 safety
standards.
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RELINING A MASONRY CHIMNEY
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1. See Diagram #9.
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2. The Katydid™ wood stove heater is certified to
use 18 gauge, 4-inch (10.16 cm) double-wall
all-fuel stainless steel rigid pipe as a connector
from the flue outlet on the stove to the opening
of the masonry chimney. We recommend TYPE
PL All Fuel Vent by Simpson DuraVent,
available at most wood stove shops. In
addition, the penetration through the wall of the
masonry chimney must include approved wall
thimble, using 6-inch (15.24 cm) Type 103HT
(U.S.), ULC629 (Canada) Class-A as a conduit
in accordance with UL-Listed wood stove
installations, and must meet all county and
state requirements for such installations. The
masonry chimney itself must be lined with 4-
inch (10.16 cm) single wall stainless steel
flexible pipe from the top of the masonry
chimney down to opening in the masonry
chimney which accommodates the approved
wall thimble. All joints must be secured with at
least 3 self-tapping screws per joint.
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3. Using gloves to protect your hands, unroll 4-
inch stainless steel flexible pipe, on the ground
outside of house, and straighten it as much as
possible to make it easier to insert it through
the masonry chimney.
!
4. Climb onto the roof and remove the cap from
the top of the masonry chimney and check for
any obstacles in masonry flue.
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5. Begin sliding the 4-inch stainless steel flexible
pipe into the masonry chimney. Due to the
small 4-inch diameter of the stainless steel
flexible pipe, little resistance should be felt as it
passes through the masonry chimney. It may
be helpful to have an installation partner down
below, to assist with sliding the flexible pipe
through the chimney to the opening in the
sidewall of the masonry chimney.
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6. At the opening in the sidewall of the masonry
chimney, the 4-inch stainless steel pipe must
pass through a Type 103HT (U.S.), ULC629
(Canada) Class-A UL-Listed factory built wall
thimble and chimney pipe, as previously
mentioned. Carefully follow all manufacturer’s
installation instructions. Caution: Never install
any wood stove or chimney systems outside of
the provisions outlined in the NFPA-211 safety
standards.
!
7. From the rooftop, pull the excess 4-inch
stainless steel flexible pipe from the masonry
fireplace chimney, leaving sufficient length to fit
into the chimney cap. Use a hacksaw or other
cutting device to cut the stainless steel flexible
pipe. Wear gloves, to prevent cuts from sharp
metal edges. Secure to the chimney cap with a
minimum of three self-tapping screws.
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8. When connected, using 3M™ Fireblock sealant
(or equivalent) and concrete screws to secure
the chimney cap in place.
!
9. Caution: Never utilize make-shift compromises
during installation. Never install any wood
stove or chimney systems outside of the
provisions outlined in the NFPA-211 safety
standards.
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STARTING & MAINTAINING A FIRE
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1. When your installation is complete and it is
time to lay a fire in your Katydid™ wood stove
heater, we urge you to “think small”. Because
the flue temperature will be cold, it is important
to start with a small fire to warm the flue and
establish a good draft in the vent pipe, before
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Katydid™ Wood Stove www.UnforgettableFireLLC.com
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building a bigger fire inside the combustion
chamber.
!
2. Burn wood directly on installed fire bricks. Do
not use a grate or otherwise raise the fire within
the combustion chamber. Begin with a small
handful of lightly crumpled paper in the bottom
of the firebox. Next, lay your kindling in a criss-
cross pattern on top of the paper. Light the
paper and close the door. Move the air control
to the completely open position (pulled forward)
and leave it open until the fire is well
established. Allow the first kindling load to burn
most of the way before adding more wood fuel.
!
3. Graduate to larger pieces of wood as the fire
becomes more established. We recommend
that you lay your cordwood within the
combustion chamber in a “north/south” (front/
back) horizontal position rather than an “east/
west” (left/right) horizontal position for best
results to allow for sufficient air flow within the
combustion chamber.
!
4. Until a good draft is established you may notice
some smoke escaping into the room from the
bottom of the Katydid™ wood stove heater, or
the chimney connector. Using too much paper
and kindling can result in a slow to start and/or
smokey fire, “puffing” and/or a backdraft.
!
5. Unlike other wood stoves, the Katydid™ wood
stove heater was engineered to deliberately
create a slow, burning fire at the bottom of the
stove, allowing smoky gases to rise to the top
of the stove, where they ignite in a secondary
combustion, before exiting the flue.
!
6. Operating your Katydid™ wood stove heater
with the air control open (pulled forward) at all
times will not provide the necessary conditions
to allow for secondary combustion, and is not
an efficient way to operate your Katydid™
wood stove heater.
!
ASH DISPOSAL
!
Ashes should always be placed in a steel
container with a tight fitting lid, and the container
placed on a non-combustible surface, or on bare
ground, well away from all combustible materials,
pending final disposal. If the ashes are disposed
of by burial in soil or otherwise locally dispersed,
they should be retained in the closed container
until all cinders have thoroughly cooled.
!
BREAK-IN PERIOD
1. Your Katydid™ wood stove heater will
experience a “break-in” period, known to
produce specific sounds and odors. Note that it
is normal for the first fires to start slowly and
produce a reduced heat output, as your
Katydid™ wood stove heater goes through a
period of driving off moisture, contained deep
within the steel components. You may hear
some “pops” or “bangs” as the steel is exposed
to its first heating and cooling cycles. You may
also smell odors from oil residues, remaining
from the manufacturing process, as they burn
off. Note: It is normal for the powder coat black
finish to off-gas as it cures. During the first
several hours of burn time, open doors and
windows to allow odors to escape. It is
recommended that individuals with chemical
sensitivity, as well as pregnant women and
children be absent from the home during this
initial phase of the break-in period. These
conditions will cease after a few days of
aggressive burning.
!
2. Until a good draft is established you may notice
some smoke escaping into the room from the
bottom of the Katydid™ wood stove heater, or
the chimney connector. We recommend you
first burn a small amount of paper and
cardboard to help warm the flue and establish
a good draft. Then, you should add small bits
of dry kindling (cedar or pine works well) about
the size of a pencil, which has been broken in
half.
!
3. We have discovered that the less kindling that
you use initially, the faster you will establish a
good fire in your Katydid™ wood stove heater.
After approximately 20 minutes, your Katydid™
wood stove heater should burn nearly
smokeless. At this point, the draft control can
be fully closed (pushed to the rear) to enable
secondary combustion.
!
4. Your Katydid™ wood stove heater will achieve
its cleanest and longest burn with the draft
control in the nearly fully closed position
(pushed towards the rear). This feature is
unique to the Katydid™ wood stove heater.
Other wood stoves require the draft control to
be open about 1/3 to keep sufficient primary air
entering the burn chamber in order to maintain
a smokeless burn.
!
5. Your Katydid™ wood stove heater incorporates
a gasifier in the lower part of the stove with a
re-burner in the top of the stove. These
components will perform best when the stove
has a well-established fire, with the draft setting
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nearly fully closed (pushed towards the rear).
Make it a habit during the first few days of
burning your Katydid™ wood stove heater to
monitor the smoke output at the chimney top,
so as to fully understand the operation of the
draft control. When properly used, there should
be little to no smoke exiting from the chimney,
except for the initial start-up period (15-20
minutes) and at fuel reloading. Note that if fuel
is loaded on top of a good coal bed, there is no
reason to open the draft control after reloading.
!
6. Do not over-fire your Katydid™ wood stove
heater during this process. If the stove or
chimney connector glows red, you are over-
firing. It is not uncommon to develop
temperatures of 1000 degrees Fahrenheit (538
degrees Celsius) on the stove top surface.
Adjacent combustible materials could be
exposed to excessively high temperatures.
!
7. Should you choose to paint your stove pipe, we
recommend Stove Bright® paint, made by the
Forrest Paint Company. During the period of
time required for the paint to cure, the paint will
off-gas, causing a paint odor to be emitted.
!
TROUBLESHOOTING
!
Your Katydid™ wood stove heater was designed
to provide you with many years of trouble-free
service. Experience has shown that most user
challenges are easily solved when owners follow
the 3-point troubleshooting checklist below:
!
1. Check the chimney for any sign of obstruction,
such as a build-up of creosote. If your
Katydid™ wood stove heater is spilling smoke
with the door open, poor chimney performance
is the likely cause.
!
2. Check the door gasket. The door gasket on
your Katydid™ wood stove heater needs to
form a tight seal when the door is closed
against its frame. A loose or damaged door
gasket can cause unwanted air to enter the
combustion chamber, and interfere with the
secondary combustion.
!
3. Check the door handle. At all times, you should
operate the Katydid™ wood stove heater stove
with the door handle in the fully-closed position.
Failure to do so can cause unwanted air to
enter the combustion chamber and interfere
with the secondary combustion.
!
After a fire has been well established in the
combustion chamber, the best indicator that your
Katydid™ wood stove heater is operating properly
is to observe an aggressive flame pattern inside
and above the level of door. This indicates that
secondary combustion is occurring as it should,
and that your Katydid™ wood stove heater is
running at its peak efficiency.
!
PROTECTING THE GLASS WINDOW
!
1. Care should be taken to not damage the glass
window in the door of the Katydid™ wood
stove heater, such as striking the glass, or
slamming the door shut against the fuel load
inside. Caution should be taken to keep the fire
burning towards the back of your Katydid™
stove at all times, and away from the glass.
!
2. Never operate your Katydid™ stove with
cracked or broken glass. Contact your
authorized Katydid™ dealer for a pre-cut heat-
resistant replacement Neoceram™ glass-
ceramic window and be sure that it is properly
installed before using the stove again.
!
CLEANING THE GLASS WINDOW
!
1. Not only can the glass window add to the
ambiance and user enjoyment of the
Katydid™ wood stove heater, but the glass
window also provides the means to view the
fuel load and flame pattern, which may be
helpful in monitoring secondary combustion.
!
2. The operator plays an important part in
keeping the glass clean and free of build-up.
Burn only well-seasoned firewood. Simply put,
burning wet wood = dirty glass.
!
3. The high temperatures inside the firebox also
assist in keeping the glass clean. However,
no wood stove glass stays perfectly clean.
Cooler burn temperatures can cause
condensation of unburned volatiles to form on
the glass.
!
4. Keeping your glass door clean is in part
accomplished by the air wash system of the
Katydid™ wood stove heater, which sends
clean, fresh air, to be used in combustion, over
the window.
!
5. Do not touch the glass while hot. Do not clean
the glass while hot. Never scrape the glass
with a razor blade. Never use abrasive
cleaners on the glass. Doing so can scratch or
pit the glass and make it impossible to clean in
the future.
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REPLACING DAMAGED GLASS
!
1. The Katydid™ stove was certified to use 3/16-
inch (4.76 mm) thick Neoceram™ (or
equivalent) heat-resistant glass-ceramic,
measuring 7.125-inch (18.10 cm) in width by
10.125-inch (25.72 cm) in height with rounded
corners. Pre-cut replacement Neoceram™
glass-ceramic windows are available for
purchase through your authorized Katydid™
wood stove dealer, or you may contact
[email protected] for purchase
information. Do not substitute with glass made
by another manufacturer. Do not substitute with
glass of another thickness. Damaged glass is
not covered under warranty.
!
2. To replace the Neoceram™ glass-ceramic
window in your Katydid™ stove heater, first let
the heater cool to a safe handling temperature,
so that you will not get burned. Then, apply a
liberal amount of a penetrating catalyst
lubricant to the twenty 5/16” screws, such as
PB Blaster®. Let the penetrating catalyst
lubricant soak for a minimum of 10 minutes.
Next, loosen and remove the screws.
!
3. Carefully remove the interior parts of the door
assembly, noting how they fit together, and
remove the broken glass. Clean the door of
any glass shards.
!
4. Place the replacement Neoceram™ glass-
ceramic window against the gasket. Check to
be sure that glass and gasket are properly
seated and reassemble the interior door
assembly. Replace the twenty 5/16” screws,
and tighten them evenly, moving from one to
another, much like one would tighten lug nuts
on the wheel of a car.
!
5. Caution should be taken not to over-tighten or
under-tighten the screws, which hold the glass
and door assembly into place.
!
REPLACING THE DOOR GASKET
!
1. The door gasket is made from 1-inch tight
weave Thermoseal rope, manufactured by
Meeco Manufacturing Company, Inc. To test
the seal of the door gasket, pinch a dollar bill
into the gasket area. If the bill pulls out easily,
the gasket is too loose. The gasket is inserted
into a channel built into the frame of the door,
and is never glued. To replace the door
gasket, gently push the replacement rope into
the channel with your fingers.
2. Do not substitute with any other gasket
material or any other gasket made by another
manufacturer. Meeco Manufacturing
Company, Inc. suggests that to ensure
efficiency, the door seal should be replaced on
an annual basis. Gaskets are not covered
under warranty.
!
DO’S
!
While your Katydid™ wood stove heater has been
engineered and tested to the strictest of UL-safety
standards, it is your responsibility to operate your
Katydid™ wood stove heater at all times with
safety as your foremost concern.
!
1. Please read this entire manual before you
install your new Katydid™ wood stove heater.
Failure to follow instructions may result in
property damage, bodily injury, or even death.
!
2. Use smoke detectors and carbon monoxide
detectors near your stove and in sleeping
areas. Keep a fire extinguisher close to the
stove for safety, and know how to use it.
!
3. Teach children that the Katydid™ wood stove is
hot and should never be touched. Do not allow
children to play near the stove without close
supervision.
!
4. Do not touch the Katydid™ wood stove heater
while it is burning, except to reload fuel or
adjust the air control. Use extreme caution
while the unit is in use. Surface temperatures
become extremely hot and can cause severe
burns.
!
5. Follow the manufacturer’s recommended
clearances and floor protection.
!
6. Keep combustible materials away from the
area.
!
7. Burn only dry, well-seasoned wood. Use a
moisture meter to determine that your fuel is
20% or less moisture content.
!
8. Learn the proper methods of selecting and
drying fire wood. When possible, choose a
close-grain hardwood, such as oak, hickory,
maple, or madrone. Immediately cut to size
and store wood fuel off the ground, on pallets,
and stacked to facilitate maximum air flow.
Never cover your fire wood with tarps. Allow at
least 6 to 12 months to properly dry your fuel.
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9. Always wear protective hearth gloves when
adding fuel to your Katydid™ wood stove
heater.
!
10. Operate your Katydid™ wood stove heater
with a mostly closed draft setting (pushed
towards the rear) after a well-burning fire has
been established. When properly used, there
should be little to no smoke coming from the
chimney except during start-up (15-20 minutes)
and when reloading fuel.
!
11. Before opening the door, the draft control must
be fully opened (pulled forward) to avoid
possible combustion flash from the ignition of
hot volatile gases, as the door is opened.
!
12. Build and maintain moderately hot fires.
!
13. Inspect your chimney at least once a month
during the heating season for creosote buildup.
Any accumulation over 3 mm must be removed
by a professional chimney sweep. Do not
attempt to “burn out” heavy accumulations of
creosote with a hot fire as this can cause a
house fire, damage to the chimney system,
injury, or even death. If large accumulations are
occurring, please review your burning
procedures.
!
14. Check joints in the flue and stove to be sure
that they are properly sealed.
!
15. Check gaskets periodically and replace as
necessary. Test the tightness of a gasket seal
by closing the door on a dollar bill. If the dollar
bill pulls out easily, the seal is not tight and the
gasket should be replaced. Repeat this test in
several locations along the parameter of the
door to be sure that the seal is consistently
tight.
!
DON’TS
!
1. Do not allow anyone to operate the Katydid™
wood stove heater who is not well familiar with
the operating instructions unique to this stove.
!
2. Do not alter damper adjustment range beyond
manufacturer’s recommendations for increased
firing. Attempts to achieve output rates that
exceed stove design specifications can result
in permanent damage to the stove. Do not
leave your stove unattended on high burn
rates. This may cause over-firing. Over-firing
this stove may cause a house fire. If the stove
glows red, you are over-firing.
!
3. Do not use gasoline, gasoline-type lantern fuel,
kerosene, charcoal lighter fluid, or similar
liquids to start or freshen up a fire. They can
ignite with explosive force and cause injury or
death.
!
4. Do not store flammables anywhere near your
Katydid™ wood stove heater.
!
5. Do not use the Katydid™ wood stove heater if
there are combustible gases in the house, such
as propane leaks, or volatile fumes from
adhesives, paints, or cleaning fluids.
!
6. Do not operate your Katydid™ wood stove
heater with cracked or broken glass. Pre-cut
replacement Neoceram™ glass-ceramic
windows are available for purchase through
your authorized Katydid™ dealer, or you may
contact [email protected] for
purchase information. Damaged glass is not
covered under warranty.
!
7. Do not modify the Katydid™ wood stove heater
in any way that is not consistent with the
manufacturer’s specifications.
!
8. Do not modify the chimney in any way that is
not consistent with NFPA-211 standards (or
Canadian equivalent).
!
9. Do not burn trash in your Katydid™ wood
stove heater.
!
10. Do not operate your Katydid™ wood stove
heater in a low pressure condition. An exhaust
fan or clothes dryer can create a low pressure
area, causing smoke and toxic gases to seep
out of the stove and into the room. Prevent a
low pressure condition by providing adequate
outside air intake for your stove.
!
11. Do not operate your Katydid™ wood stove
heater near combustibles. The outside surface
of the stove will be very hot when in use, and
could be a source of ignition. Be sure to keep
all furnishings, such as drapes and other
flammable items away from the stove. Extreme
caution must be used when drying clothing or
other items above or near the stove, as
clothing could fall and ignite.
!
12. Do not operate your Katydid™ wood stove
heater with the door open. Not only will your
Katydid™ wood stove heater fail to achieve
secondary combustion and not operate
properly, but potential for stray embers to leave
the combustion chamber is a safety hazard.
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Katydid™ Wood Stove www.UnforgettableFireLLC.com
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REPLACEMENT PARTS
!
See Diagram #13.
!
Katydid™ replacement parts are available
through your authorized Katydid™ dealer, or you
may contact [email protected] for
purchase information.
!
SKU# KAT001: Door Glass
SKU# KAT002: Vermiculite Panels (4)
SKU# KAT003: Fire Bricks (2)
SKU# KAT004: Refractory Boards (2)
!
SPECIFICATIONS
!
Height: 38-inches
Width: 12-inches
Depth: 12-inches
Weight: 150-pounds
Size of Heated Area: Up to 2500 square feet well
insulated space.
Firebox Capacity: 0.50 cubic feet
Firebox Width: 9.63-inches
Firebox Depth: 9-inches
Firebox Height: 10-inches
Maximum Log Length: 8-inches
Flue Exit: Top exit only at rear of stove top
Provisions For Outside Air Intake Kit:
Reversible for either below or back of stove.
!
MANUFACTURER’S WARRANTY
!
Our warranty is simple. Unforgettable Fire, LLC
offers a five-year, non-prorated warranty to the
original purchaser of a Katydid™ wood stove
heater on all parts, except for replacement glass,
replacement gaskets, misuse or abuse, or
improper installation. At its sole discretion,
Unforgettable Fire, LLC will either repair or
replace any defective unit to the original
purchaser under these terms. The original
purchaser shall be responsible for all shipping
and handling costs associated with any warranty
claims.
!
!
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24.5 inches

Diagram 5
18 inches 45.72 cm From Front of Door
8 inches 20.32 cm
8 inches 20.32 cm
8 inches 20.32 cm
Floor Protector
Diagram 6

ALCOVE CLEARANCES The Katydid™ wood stove heater is certified for use in alcoves with a minimum of 54-inches (137.16 cm) wide up to a maximum of 48-inches (121.92 cm) deep, with a minimum 72-inches (182.88 cm) ceiling.72-inches (182.88 cm) ceiling. A = 72 inches (182.88 cm) minimum B = 54 inches (137.16 cm) minimum C = 21 inches (53.34 cm) minimum D = 18 inches (45.72 cm) minimum E = 6 inches (15.24 cm) minimum F = 8.5 inches (21.59 cm) minimum G = 48 inches (121.92 cm) maximumG = 48 inches (121.92 cm) maximum
Diagram 7

Diagram 8 Masonry Fireplace
Diagram 9
Masonry Chimney
Katydid™ Stove

Katydid™
Stove
Diagram 10
Manufactured Chimney
Mobile Home Chimney
Diagram 11