Superior WCT6940WS User manual

EPA Wood-Burning Fireplace
P/N 900790-00 REV. A 08/2016
WCT6940WS
MODEL
WCT6940WS
This installation manual will enable you to obtain a safe, efficient and
dependable installation of your fireplace system. Please read and
understand these instructions before beginning your installation.
Do not alter or modify the fireplace or its components under any circum-
stances. Any modification oralteration of thefireplace system, including
but not limited to the fireplace, chimney components and accessories,
may void the warranty, listings and approvals of this system and could
result in an unsafe and potentially dangerous installation.
IHP wood-burning fireplaces are designed for use as a supplemental
heater. They are not intended for continuous use as a primary heat
source.
INSTALLATION AND
OPERATION INSTRUCTIONS
SAVE THESE INSTRUCTIONS
FOR FUTURE REFERENCE
Listed to standards:
ULC-S610 and UL-127
Report # 16-150
WARNING
• Hot! Do not touch! The glass and
surfaces of this appliance will be hot
during operation and will retain heat
for a while after shutting off the appli-
ance. Severe burns may result.
• Carefully supervise children in the
same room as appliance.
•
If small children are present in the home, it is
recommended that this appliance be fitted with
an adjustable safety gate or barrier screen.
WARNING
• The fireplace cannot be operated without doors.
Consult your dealer to select the correct replace-
ment door.
• The fireplace is equipped with a blower, electri-
cal connection must be made prior to fireplace
installation
• Important! To assure proper alignment of glass
doors: Install this fireplace in a square and
plumb condition, using shims as necessary at
sides and/or bottom.
• Install the fireplace only as described in these
instructions.
An French manual is available upon request. Order P/N 900090-00.
Ce manuel est disponible en francais, simplement en faire la demande.
Numéro de la pièce 900090-00.
CUS
P900790-00

WARNING
To avoid the risk of damaging
fireplace materials and increas-
ing the risk of fire, do not use the
fireplace to cook or warm food.
WARNING
NEVER use gasoline, gasoline-
type lantern fuel, kerosene,
charcoal lighter fluid, naphtha,
engine oil or similar liquids to
start or “freshen up” a fire in this
fireplace. Keep any flammable
liquids a safe distance from the
fireplace at all times.
WARNING
Be careful adding wood fuel to the
fireorhandlingfireplace toolssuch
as shovels, tongs or pokers.
WARNING
The bottom refractory can be
cracked by excessiveabuse such
as tossing heavy logs onto the
grate or gouging with fireplace
tools. Exercise caution when
adding wood to your fireplace.
WARNING
Always ensure thatthe air inlet to
the fireplace is free from debris
and any other obstructions that
can block the entrance of air.
WARNING
Neither the manufacturer nor the
seller warrants “smoke free”
operation nor arewe responsible
for inadequate system draft
caused by mechanical systems,
general construction conditions,
inadequate chimney heights,
adverse wind conditions and/or
unusual environmentalfactors or
conditions beyond our control.
WARNING
Use care when selecting window
treatments for windows located
near the fireplace. Avoid using
combustible flowing window
treatments such as curtains
on nearby windows that are of
sufficient length to be blown in
front of an open flame when the
window is opened.
Keep any combustible furniture,
materials or decorative pillows
at least 48" (1219 mm) from the
front fireplace opening.
WARNING
The WCT6940WS fireplace must
beinstalledwithanoutsideairkit,
which is included with fireplace.
WARNING
Never leave children unattended
when there is a fire burning in
the fireplace.
IMPORTANT! GENERAL SAFETY
PRECAUTIONS. READ AND
UNDERSTAND THESE SAFETY
RULES BEFORE YOUR FIRST FIRE.
WARNING
Never leave your fireplace unat-
tended while it is burning.
WARNING
THIS FIREPLACE HAS NOT BEEN
TESTED WITH AN UNVENTED
GAS OR A FIREPLACE INSERT.
TO REDUCE RISK OF FIRE OR
INJURY, DO NOT INSTALL AN
UNVENTED GAS LOG SET OR
FIREPLACE INSERT OR OTHER
PRODUCTS NOT SPECIFIED FOR
USE WITH THIS FIREPLACE.
IMPORTANT
When burning wood, use SOLID
NATURAL DRYWELL-SEASONED
WOOD ONLY. Hardwoods are
recommended (soft woods tend
to burn very quickly).
• DO NOT burn treated wood,
charcoal, coal, trash, card-
board, driftwood, woods
dipped in tar, Christmas
tree greens, pitch, pine tar,
creosote, chemical chimney
cleaners, flame colorants,
polystyrene packaging, wood
products with synthetic bind-
ers (e.g. plywood). Plywood,
lumber and other misc. mate-
rials can produce abnormally
high temperatures, sputtering
and smoking fires and may
contain hazardous chemicals
to treat insects and fungus.
• Burning unapproved fuels
can produce excessive tem-
peratures, beyond the design
capabilities of the fireplace
and may produce excess
sparks or may contain haz-
ardous chemicals. Burning
unapproved fuels can result in
a chimney fire, a house fire,
personal injury, death or loss
of property.
WARNING
Never modify or alter your fireplace
system in any way. To do so may
create a potential fire hazard and
void the limited warranty, listings
and approvals of this system.
WARNING
THE FIREPLACE MUST BE OPER-
ATED WITH THE DOORS FULLY
CLOSED. IF THE DOORS ARE LEFT
PARTLY OPENED, GAS AND FLAME
MAY BE DRAWN OUT OF THE FIRE-
PLACE OPENING,CREATING RISKS
OF BOTH FIRE AND SMOKE.
2

THE FIREPLACE
INTRODUCTION
The WCT6940WS wood-burning fireplace is
an energy efficient, heat circulating, closed
combustion fireplace. You will receive a lifetime
of comfort and enjoyment from your fireplace
provided it is installed, maintained and oper-
ated properly.
• Please read these instructions and retain
this manual for future reference.
• Before beginning the fireplace installation,
consult the appropriate local authorities to
obtain your building permit and check your
local building codes. Install the fireplace
only as described in these instructions and
using only IHP components.
• This fireplace has been tested for CAN/ULC
S610-M87 and ANSI/UL 127. It has also
been tested for EPA 40 C.F.R Part 60, section
60.532(b).
• The WCT6940WS fireplace is not intended
for use with a gas log set. Do not use a
fireplace insert or any other product with
this fireplace unless it is specified by IHP
for use with this appliance. Failure to follow
these instructions will void the certification
and the warranty of the fireplace and may
result in an unsafe installation.
• These appliances are designed to provide
supplemental heat to the immediate area only.
Therefore, it is advisable to have an alternate
heat source when installed in a dwelling.
• These appliances are not approved for
Manufactured Home installations.
CAUTION: BURN UNTREATED WOOD
ONLY. OTHER MATERIALS SUCH AS
WOOD PRESERVATIVES, METAL FOILS,
COAL, PLASTIC, GARBAGE,SULPHUR OR
OIL MAY DAMAGE THE CATALYST.
CAUTION: DO NOT OPERATE WITHOUT
THE CATALYTIC COMBUSTOR IN PLACE.
CAUTION: NEVER BURN WITH THE BY-
PASS OPENED EXCEPT FOR FIRE START-
UP AND WHEN RELOADING THE STOVE.
*Available from Security Chimneys™
TABLE OF CONTENTS
Safety Rules......................................Page 2
Introduction ......................................Page 3
Parts Required .................................Page 3
Optional Equipment...........................Page 3
Operating The Fireplace .....................Page 4
Fuel ...................................................Page 3
Combustion Control .........................Page 4
Starting And Maintaining a Fire.........Page 6
Refueling For Best Performance .......Page 6
Smoking – Causes And
Troubleshooting ..............................Page 6
Important Cautions ...........................Page 6
Catalytic Combustor Troubleshooting..Page 7
Smoke Detector ................................Page 8
Carbon Monoxide Monitor ................Page 8
Achieving Clean Burns ......................Page 8
Dealing With A Chimney Fire.............Page 8
Well Seasoned Fuel...........................Page 9
Maintaining Your Fireplace ...............Page 9
Catalytic Combustor..........................Page 9
Refractory Replacement....................Page 11
Door Installation ...............................Page 12
Door Adjustment...............................Page 12
Glass Care.........................................Page 12
Fireplace Installation ........................Page 13
Facade Installation ............................Page 14
Hearth Extension Requirements .......Page 14
Cold Climate Installations..................Page 14
Framing / Fireplace Specifications.....Page 15
Nailing Flanges..................................Page 16
Fireplace Blower................................Page 17
Hot Air Ducting Installation ..............Page 17
Outside Air Kit ..................................Page 18
Draft Requirements...........................Page 19
Chimney System...............................Page 19
Offset Chimney Installation ...............Page 21
Angled Wall Radiation Shield ............Page 24
Chimney Support Installation............Page 24
Masonry Application Instructions .....Page 25
Installation Accessories ....................Page 26
Replacement Parts............................Page 27
Specifications....................................Page 27
Clearances
to Combustibles ..............Page 27
Chimney Components Lists ..............Page 28
Warranty ...........................................Page 31
Product Reference Information.........Page 32
CONGRATULATIONS!
When you purchased your new fireplace, you joined the ranks of thousands of individuals
whose answer to their home heating needs reflects their concern for aesthetics, efficiency
and our environment. We extend our continued support to help you achieve the maximum
benefit and enjoyment available from your new fireplace.
Thank you for selecting a IHP fireplace as the answer to your home supplemental heat-
ing needs.
PARTS REQUIRED
Fireplace model: WCT6940WS
• 7”diameterchimney*- Model SecureTemp®
S-2100+, Nova Temp®HT6000+, Secure
Temp GX (U.S. only) or ACBI manufactured
by Security Chimneys International™ only,
including:
- Chimney lengths
- Elbows (where necessary)
- Associated components as per these
installation instructions
•..Decorative Doors - Required
....(Order Separately - See Page 26)
• Front Facade kit - Required
...(Order Separately - See Page 26)
• UZY7 Blowers (included in the fireplace).
• VRUW Blower Speed Control (included in
literature package)
• Outside air kit (Included w/Fireplace)
OPTIONAL EQUIPMENT
- AC Chimney Adaptor*
(required if using AC Chimney*)
- AC Chimney Outside Air Kit
- Gravity Venting System
Additional Equipment (optional)
- Forced Air Kit u
- Gravity Venting System
- Tubinox®*chimney (or Projet®SS*), 7”
diameter with adaptor for installation in
a masonry chimney.
uNot tested under EPA certification. If
installed, this appliance no longer
qualifies for EPA certification. Check with
local authorities having jurisdiction for
requirements in your area.
3

Catalytic Combustor
This fireplace is equipped with a catalytic com-
bustor. Unburned by-products of the wood fire
are burned at lower temperatures as they pass
through the combustor resulting in less pollu-
tion, reduced creosote and higher efficiency. In
order to have thecatalyst working, temperatures
of the flue gases entering the combustor have
to be higher than 400° F (200° C). That is why
the unit is equipped with a bypass damper
that allows the draft air to bypass the catalytic
combustor. Opening the bypass damper control
increases the draft allowing the unit to achieve
proper operating temperatures during a cold
start-up. It also provides more draft to prevent
smoke spillage when the door is opened.
Catalytic Bypass Gauge
To determine when to close the bypass, the unit
is equipped with a gauge (see Figure 1). The
gauge is located behind the decorative facade
in the lower right corner. Once you can see
the gauge needle in the catalytic combustor
operating range, you may push to close the
bypass lever.
OPERATING THE FIREPLACE
Fuel - USE SOLID NATURAL WOOD FUEL
ONLY.
This appliance is designed to burn dry
seasoned natural wood only (see Page 9 for a
list of prohibited fuels). Failure to burn proper
fuels only will void the cert ification and the
warranty of the appliance. Hardwoods are
preferred to softwoods since the energy content
of wood is relative to its density. Hardwoods
will result in a longer burning fire and less
frequent refueling.
A moisture content of 15% to 20% (seasoned)
is recommended. Wood that has been cut and
split and let to dry under a cover for a period
of one year will usually meet that criteria. The
required drying time will vary depending on the
climate. Wood that is packed tight together will
take longer to dry. Seasoned wood is darker in
color than wet wood and will have visible cracks
in the grain on the ends.
Excessively wet wood
will be difficult to burn and will result in lower
efficiency, increased creosoting and plugging
of the catalytic combustor. Excessively dry
wood will burn well but will also have higher
emissions and shorter burning time.
Overheating the unit above 1000° C (1800º F)
is harmful for the catalytic combustor, it can
damage the catalyst coating and can cause
cracking of the substrate. Looking through the
top front of the decorative facade, if the top of
the firebox is glowing, the unit is overheating.
DO NOT OVERFIRE THIS HEATER
Attempts to achieve heat output rates that
exceed heater design specifications can result
in permanent damage to the heater.
First Fires
Make sure the doors are properly adjusted,
thus avoiding color change to finish due to
overheating.
The first five or six fires should be small fires
of short duration (about 30 to 60 minutes).
This will help cure the refractory bricks. During
the first few fires of this appliance there may
be some odor and smoke due to the curing of
the paint, dust accumulation and burning off of
lubricants used in the manufacturing process. It
may set off a smoke alarm located in the same
room. For this reason the room should be well
ventilated for the first few fires.
When the catalyst light-off conditions are
achieved, the combustor will keep on going
until it runs out of smoke. Note that the catalyst
does not need to be glowing to be working, it
can work very well at temperatures well below
the 538° C (1000° F) level at which it will begin
to glow. The best way to see if the catalyst is
active is to take a look at what is coming out
of the chimney. If the catalytic combustor is
working you will see some white water vapor
coming out, compared to a more brown/gray
smoke when the bypass is opened. Do not burn
any chemical chimney cleaner; it can make the
catalyst inactive.
Combustion Control
Primary Air
There is no flue damper in the fireplace. As is
common with air tight appliance, the combus-
tion air control sets the flow of air entering the
firebox. This allows for a more precise control
of the fire. The combustion air control is located
below the door on the left side. The main source
of air (primary air) entering the firebox can
be diminished by moving the air combustion
control from left to right. The primary air is
fully opened when the air control is completely
moved to the left.
This manual describes the installation and operation of the IHP model WCT6940WS catalytic
equipped wood heater. This heater meets the 2020 U.S. Environmental Protection Agency’s certified
to comply with 2020 particulate emission standards using crib wood. Under specific test conditions
this heater has been shown to deliver heat at rates ranging from 10,900 to 40,000 Btu/hr.
Primary Combustion
Air Control
Figure 1
This wood heater
has a manufacturer-
set minimum low
burn rate that must
not be altered. It is
against federal regu-
lations to alter this
setting or otherwise
operate this wood
heater in a manner
inconsistent with op-
erating instructions
in this manual.
Catalytic Bypass Gauge
Location - bottom right
behind facade grille
IHP – P/N 900525-00
15-27830
ACTIVE
CATALYTIC COMBUSTOR
Closed
Open
Bypass
Location
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
4

Figure 2 - Accelerated Combustion Setting
Figure 3 - Medium Combustion Setting
The air combustion control should be in the
closed position when the fireplace is not in
operation. This will minimize air leakage up the
chimney. The combustion air control and the
bypass damper control must be opened before
opening the door to minimize the possibility
of back draft coming into the room (Figure 1).
More details are available in Refueling For Best
Performance on Page 6.
Heat Output
The WCT6940WSfireplace isthe largestmember
of the IHP high efficiency fireplaces. The heat
generated fromits fireis moreefficientlycaptured
and distributed. In spite of the large amount of
heat that the WCT6940WS fireplace can deliver,
it should not replace the main source of heat in
your home. This fireplace will bringextra warmth
and ambiance to your home by distributing its
heat as described further in the manual.
Accelerated Combustion
The maximum heat output for the WCT6940WS
fireplace is achieved by burning with the door
closed and the combustion air opened and
pulled out. Through this method, the fireplace
can produce up to 80,000 BTU of heat per
hour. However, it will be necessary to reload
with wood every one or two hours. This is the
least efficient method of burning the fireplace.
For instance, a long chimney will necessitate
closing the damper more. To obtain the proper
combustion, close the damper completely, then
open it about 1/2” to 3/4”. Three medium size
pieces of cord wood-burning on a bed of hot
coals will generate an approximate heat output
will of 35,000 BTU per hour and the loading
time will be about every 3-4 hours.
Use caution when firing with the combustion
air control wide open. Only burn cord wood
in this manner. Small dry pieces of softwood
and construction scraps will burn very intensely
using this method and may damage the firebox
as well as the catalytic combustor.
Medium Combustion
This is the recommended mode of operating
the WCT6940WS fireplace and should be the
one normally used since it will deposit the
least amount of creosote on the glass and in
the chimney. The combustion air control must
be 3/4 closed. The precise setting will depend
on many factors, including chimney length and
the moisture content of the wood.
Softwoods may also be burned using this
method but the combustion time will be sub-
stantially reduced.
Slow Combustion
When the air combustion control is completely
closed, the fireplace is in a slow combustion
phase. If the hearth is hot enough, slow com-
bustion will not extinguish the fire, but there
will be a noticeable change in the flame pattern.
The flames will be slow and may appear dirty
if the wood is too wet (moisture content of
20% and more).
Do not allow the wood to burn without flame,
since this will produce excessive creosote in
the unit. Creosote may accumulate on the glass
door. This method of burning should be used
only after operating the WCT6940WS fireplace
with the air control opened to produce a hot
fire for about an hour or at medium pace for
at least three (3) hours. Slow combustion can
be used at night in order to reduce the heat
output and to prolong the burn. The burn time
will be between 6-8 hours and this combustion
rate, while the output level of BTU’s will be at
their lowest.
Figure 4 - Slow Combustion Setting
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
5

Step 3. Open the doors about 1” and wait 5
seconds until the air flow has stabilized. Then
open the doors completely, put the logs in and
close the doors.
Step 4. Set the primary air control to the
desired burn level. Open the bypass damper
for 10 minutes before closing it. It will ensure
sufficient temperatures for combustor light-off.
To refuel the WCT6940WS fireplace when the
unit is still hot (Some burning fuel remaining
or a glowing combustor)
A. Fully open the primary air control and the
bypass completely.
B. Open the doors about 1” and wait 5 seconds
until the air flow has stabilized. Load the fuel,
close the doors and bypass (temperatures
within the firebox should be enough to
maintain catalytic operation).
C. Set the primary air control to the desired
burn level.
NOTES:
• For spectacular fire and optimization of the
fireplace efficiency, we recommend that the
wood load be placed as far back as possible.
• It may be necessary to turn off any blower(s)
in operation during the refueling process in
order to minimise smoking in the room. It
is recommended to wait 15 to 30 minutes
before turning the blower(s) back on to
ensure successful rekindling.
SMOKING –
CAUSES AND TROUBLESHOOTING
To reduce the likelihood of smoke coming
into the room when opening the doors, set
the combustion air controls to the left (“Ac-
celerated Combustion”) and open the bypass
before opening the doors. Your fireplace has
been designed and tested to provide smoke
free operation.
As the fire burns, air goes up the chimney.
This air must be replaced through the outside
air duct. When operating the fireplace, open a
nearby window temporarily to check if there is
adequate replacement air supply. Occasionally,
there may be a small amount of smoking upon
lighting the fire, until the chimney heats up but
this should not last. If the fireplace continues
to smoke it is probably for one of the follow-
ing reasons:
A. The doors are partially opened - When you
close the doors, close them completely.
B. Negative pressure in the house -
As the
fire burns, air goes up the chimney. This
air must be replaced through leakage into
the house or through the outside air duct
(optional). When operating the fireplace,
open a nearby window temporarily to check
if there is adequate replacement air supply.
C. Fans operating (e.g.: range hood) - These
fans draw air out of the house and may
actually cause a negative pressure in the
house. Turn off all fans and open a nearby
window to determine if this is the cause of
the problem.
D. Wetwood - Wet or tarredwood will smoulder
and smoke instead of burning properly.
Your
dealer can help you determine if you have
properly seasoned wood for burning.
E. Dirty or blocked chimney - Check to make
sure the chimney is clear and clean.
If
dirty call a certified chimney sweep or use
a properly sized chimney brush to clean.
F. Chimney not long enough - The minimum
chimney height is 12 feet not including the
fireplace height. The chimney must extend at
least three (3) feet (915 mm) above its point
of contact with the roof and at least two (2)
feet (610 mm) higher than any roof or wall
within ten (10) feet (3m) of it. When installed
with offsets, the minimum chimney height is
15 feet. Additional height will increase draft
and will decrease the tendency to smoke.
G. Poor chimney draft
With no fire, there should be sufficient draft
to exhaust cigarette smoke introduced under
the baffle. Chimneys installed against an
outside wall without protection may gener-
ate back draft problems which will cause
start-up problems. To prevent this, open
a nearby window; roll up a piece of paper,
light it and hold it in the upper part of the
firebox to warm up the chimney. Wait until
the draft is sufficient, then start the fire.
H. Blower for forced air kit operating - Make
sure that the blower is at the “off” position
whenyouopenthe fireplacedoorforreloading.
IMPORTANT CAUTIONS
A. Do not block the openings at the top of the
fireplace as this will cause the fireplace to
overheat.
B. Never use gasoline, gasoline-type lantern
fuel, kerosene, charcoal lighter fluid, or
similar liquids to start or ‘freshen up’ a
fire in this fireplace. Keep all such liquids
well away from the fireplace while it is in
use.
C. Do not burn coal. The sulphur in coal will
corrode the firebox and chimney.
D. Do not burn driftwood which has been in the
ocean or salt water. The salt will corrode
the firebox and chimney.
E. Do not operate the unit with the door(s)
partly open since this may cause smoke
to be drawn into the room.
F. Do not burn wood in the area in front of the
grate.
G. Do not abuse the unit by burning paper, or
cardboard or construction material such as
pressed wood, plywood or lumber. Wood
protectors, metallic paper, coal, plastic,
waste, sulphur and/or oil will damage the
fireplace.
H. Do not allow the wood to smoulder or burn
without flame, since this will produce
excessive creosote in the unit
as well as
increased particulate emissions.
STARTING AND MAINTAINING A FIRE
Step 1. Place several crumpled up balls of
newspaper in the firebox. Place small dry pieces
of kindling on top of the paper, criss-crossing
the kindling so that there are air spaces in
between. The kindling should be placed at the
center of the firebox so as to allow for sufficient
air circulation.
Step 2. Adjust the primary air control and pull
the bypass damper control towards you to put
it in the OPEN position. Light the newspaper.
Leave the doors partially opened to facilitate
the start-up.
Step3. Once the kindling fire is well established,
cord wood can be added. Close the door and
maintain an accelerated combustion air setup in
order to achieve combustor light-off conditions
(See Primary Air Control Section).
Step 4. When the fire is burning well, close the
bypass damper control by pushing the control
rod in. It takes about 15 – 30 minutes with
the bypass opened to reach proper light-off
temperatures for the catalytic combustor.
Step 5. Set the primary control to the desired
burn level. The fireplace will automatically go
to that level after the fire is fully established.
The unit will burn best with 2-3 pieces of cord
wood spaced 1 to 2 inches apart and allowing
air to get under the fuel. Criss-crossing or ar-
ranging the fuel so that air can get underneath
will help the fire to get started easily. The unit
should be operated withthe air control fully open
long enough to get the cord wood well ignited.
REFUELING FOR BEST PERFORMANCE
To refuel the fireplace at the end of a burn cycle
when only hot embers remain and flames are
gone (not enough heat to maintain catalyst
operating temperatures):
Step 1. Open the bypass and air controls fully
(see Figure 1).
Step 2. Completely open the primary air control.
See Figure 2.
REFUELING: During the refueling and
rekindling of a cool fire, or a fire that has
burned down to the charcoal phase, operate
the stove at a medium to high firing rate for
about 10 minutes to ensure that the catalyst
reaches approximately 400°F.
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
6

NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
7
CATALYTIC COMBUSTOR TROUBLESHOOTING GUIDE
Problem Condition Solution
Ash Build-up on Combustor Surface Normal Ash, a fluffy light gray powder, and soot, accumulate on the com-
bustor surfaces in normal use. Ashes accumulate as a result of the
smoke being burned within the combustor and carried out of the
firebox by the chimney draft. Soot is the result of previous creosote
deposits having been burned off or foreign materials being burned
in the firebox. This is normal and will be eliminated during the next
burn.
Combustor Clogging Creosote Combustor should be cleaned (see Page 11). Do not use air pres-
sure or sharp objects to clean combustor.
Broken Combustor Crack or Break The combustor is manufactured from a ceramic material and there-
fore can crack or break. However, the combustor will still function if
cracked. If combustor is broken into pieces and dis-lodged from the
housing, it will need to be replaced.
Combustor Malfunction Not Working The combustor should last a minimum of 10,000 hours of opera-
tion. The combustor will lose catalytic capability over time. When
you see continuous smoke coming from the chimney, the combus-
tor should be cleaned. If the smoking persists, the combustor
should be replaced.
Combustor Problem Thermal Erosion This combustor does NOT experience thermal erosion. “Not ap-
plicable.” Applies to honeycomb combustors only.
Combustor Problem Thermal Cracking This combustor does NOT experience thermal cracking. “Not ap-
plicable.” Applies to honeycomb combustors only.
Combustor Problem Combustor Peeling This combustor does NOT experience combustor peeling. “Not
applicable.” Applies to honeycomb combustors only.
Reduced Combustor Performance Combustor Clogging or Fatigue Signs of combustor fatigue include reduced heat output and slug-
gish performance. Inspect and clean combustor. Replacement
may be required. Monitor performance and smoke coming from
chimney.
Combustor not glowing Late stage of burn Combustor does not need to be glowing to be working. Check
smoke exiting chimney to help determine if combustor is working
properly.
Appliance burning too hot or fast Doors are not properly closed. Close doors securely. Check door gasket.
Excessive draft Adjust primary air control to lower setting.
Back-puffing or sudden internal ignitions Operating technique Open bypass and primary air control before opening to reload and
keep it open a few minutes after reloading.
Burn rate too low Open air damper to allow for hotter burn.
Chimney down draft In high wind areas, a specially designed wind cap may be neces-
sary.
Combustor or louvered housing plugged Clean combustor / louvered housing of accumulated fly ash.
Appliance Smokes Operating technique Open bypass and air damper prior to reloading appliance.
Blocked Chimney Examine chimney and vent pipe for blockage and creosote accumu-
lations. Check spark arrestor screen on your cap, if you have one.
Blocked outside air duct Check the outside air inlet for blockage caused by snow, debris, or
insects.
continued on following page...

NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
8
OK
Figure 5
SMOKE DETECTORS RECOMMENDED
Since there are always several potential sources
of fire in any home, we recommend installing
smoke detectors. If possible, install the smoke
detector in a hallway adjacent to the room
(to reduce the possibility of occasional false
activation from the heat produced by these
appliances). If your local code requires a smoke
detector be installed within the same room, you
must follow the requirementsof your local code.
Check with your local building department for
requirements in your area.
CARBON MONOXIDE MONITOR RECOM-
MENDED
Carbon Monoxide Poisoning: Early signs of
carbon monoxide poisoning are similar to the
flu with headaches, dizziness and/or nausea. If
you have these signs, obtain fresh air immedi-
ately. Some people are more affected by carbon
monoxide than others, including pregnant
women, people with heart or lung disease or
anemia, those under the influence of alcohol,
and those at high altitudes.
It is against federal regulations to operate
wood heaters in a manner inconsistent with
operating instructions in the manual.
DEALING WITH A CHIMNEY FIRE
Regular chimney maintenance and inspection
can prevent chimney fires. If you have a chimney
fire, follow these steps:
1. IMPORTANT: Close the fireplace door and
the combustion air controls; this will stifle
the fire.
2. Alert your family of the possible danger.
3. If you require assistance, alert your fire
department.
4. If possible, use a dry chemical fire extin-
guisher, baking soda or sand to control the
fire. Do not use water as it may cause a
dangerous steam explosion.
5. Ensure that sparks and hot embers coming
out of the chimney are not igniting the roof.
6. Do not use the fireplace again until your
chimney and fireplace have been inspected
bya qualified chimney sweep or a fire depart-
ment inspector.
ACHIEVING CLEAN BURNS
Check the exhaust in about 15 to 20 minutes
(seeFigure 5). Large amounts of smokeindicate
an improper burn setting (either too high or too
low). Adjust and recheck in 5 to 10 minutes.
CATALYTIC COMBUSTOR TROUBLESHOOTING (continued)
Healthy Combustor - Unused
Combustor Problem - Ash, a fluffy light grey powder, and soot, accu-
mulate on the combustor surfaces in normal use. In extreme situations
combustor can become clogged and should be cleaned.
Combustor Problem - Broken Combustor
Combustor Problem - Cracked Combustor

WHAT DOES “WELL-SEASONED” MEAN?
When a tree is cut down, the wood is green,
full of sap and moisture. This moisture content
can exceed 80%, which must be reduced to
less than 20%. Wood properly seasoned is
then capable of generating the heat the stove
was designed to provide.
Green wood does not burn easily. Attempting to
burn green wood often results in a lot of smoke
and very little fire. Time is the most important
factor in seasoning wood. Ideally the moisture
content should be reduced to 11-20%. NOTE:
The use of a firewood moisture meter is rec-
ommended to ensure the firewood contains
less than 20% moisture.
Seasoning Guide
Softwoods - 6 months to 18 months
Hardwoods - 12 months to 24 months
Logs that are 5”diameter across orlarger should
be split in half, three pieces if over 8 inches, and
four pieces when over a foot across. If a tree
has been dead for 2 - 4 years it still needs to
be cut, split, and seasoned for 6 to 24 months
depending on the wood.
4'
4'
8'
Standard
Cord of
Wood
8 Ft.
(2.4M)
4 Ft.
(1.2M)
4 Ft. (1.2M)
Figure 6
• solvents;
• grease; or
• coal
Burning these materials may result in release
of toxic fumes or render the heater ineffective
and cause smoke.
Intense firing with these
materials may overheat the fireplace, causing
damage to the unit, a fire or even possibly ignit-
ing a chimney fire if the chimney is creosoted.
Burning unapproved fuel, resulting in excessive
pollutants being emitted, may be prohibited and
subject to a fine or other penalty by the authority
having jurisdiction in your area.
The prohibition against burning these materials
does not prohibit the use of fire starters made
from paper, cardboard, saw dust, wax and
similar substances for the purpose of starting
a fire in an affected wood heater.
MAINTAINING YOUR FIREPLACE
Have your product inspected at least once
a year by a qualified service technician to
ensure gaskets, air tubes, baffles, and vent-
ing are in good repair to ensure proper per-
formance. Have degraded items replaced
by a qualified service technician.
Thiswoodheatercontainsa catalytic com-
bustor, which needs periodic inspection
and replacement for proper operation. It
is against federal regulations to operate
this wood heater in a manner inconsistent
with operating instructionsin this manual,
or if the catalytic element is deactivated
or removed.
Creosote - Formation and Need for Removal
When wood is burned slowly, it produces tar
and other organic vapors, which combine
with expelled moisture to form creosote. The
creosote vapors condense in the relatively
cool chimney flue of a slow-burning fire. As
a result, creosote residue accumulates on the
flue lining. When ignited this creosote makes
an extremely hot fire.
The chimney shall be inspected at least twice
a year during the heating season to determine
when a creosote buildup has occurred.
When creosote has accumulated it shall be
removed to reduce the risk of a chimney fire.
When the creosote accumulation is large, a
creosote fire in the chimney can damage the
chimney and overheat the surrounding wood
framing. Creosote formation in a chimney can
be minimized by making sure there is always
visible flame burning, avoid smoldering fires
and by proper refueling techniques.
Chimney Maintenance
Regular chimney inspection and maintenance
combined with proper operation will prevent
chimney fires. Keep your chimney clean. Do
not allow more than 1/16” (1.6 mm) creosote
build up in your chimney.
Prohibited Fuels
This heater is designed to burn natural wood
only. Higher efficiencies and lower emissions
generally result when burningair dried seasoned
hardwoods, as compared to softwoods or to
green or freshly cut hardwoods. DO NOT BURN:
• Garbage;
• Lawn clippings or yard waste;
• Materials containing rubber, including tires;
• Materials containing plastic;
• Waste petroleum products, paints or paint
thinners, or asphalt products;
• Materials containing asbestos;
• Construction or demolition debris;
• Railroad ties or pressure-treated wood;
• Manure or animal remains;
• Salt water driftwood or other previously salt
water saturated materials;
• Unseasoned wood;
• Christmas tree branches;
• Paper products, colored paper, cardboard,
plywood, or particleboard;
• gasoline;
• naphtha;
• engine oil;
• flammable liquids;
The amount of creosotewill depend on variables
such as frequency of use and type of fire. We
recommend that you:
A. Initially inspect the chimney system weekly.
From this, you will learn how often it will be
necessary to clean your chimney.
B. Have your chimney cleaned by a qualified
chimney sweep. If you wish to clean it
yourself, we recommend using a stiff plastic
or non-metallic brush. If a metal brush is
used, its size should be slightly smaller than
the flue to avoid damaging the chimney. Do
not use a brush that will scratch the stainless
steel interior of the chimney.
C. Do not expect chemical cleaners to keep
your chimney clean. The rain cap can be
removed for inspection and/or cleaning of
the chimney.
CAUTION: It is necessary to remove the deflec-
tor from the top of the firebox before cleaning
the chimney.
Before performing chimney sweep, open the
bypass and remove the combustor. Remove
dust accumulation after chimney sweep and
put the combustor back in place.
CATALYTIC COMBUSTOR
This fireplace is designed with a catalytic com-
bustor which will reduce pollution emissions
and creosote build up while improving thermal
efficiency. In order to optimize and maintain
the combustor performance, it is important to
visually check the combustor at least 3 times
during the heating season to determine if physi-
cal degradation has occurred.
The combustor supplied with this heater is
a Healthy Hearth Combustor. Consult the
catalytic combustor warranty also supplied
with this wood heater. Warranty claims
should be addressed to:
Healthy Hearth LLC
31375 Riverside Drive #214
Lake Elsinore , CA , 92530
Phone: [phone]
The packaging of the combustor must be
robust enough to protect against any ship-
ping damage that may occur.
WARNING
To prevent damage to your com-
bustor, do not:
• Drop the combustor (which is
fragile compared to the rest of
the unit – so handle with care)
• Run water or compressed air
through the combustor
• Try to clean the combustor with
any sharp tool
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9

CLEANING THE COMBUSTOR (Figure 7):
Catalytic combustors requirelittle maintenance.
Cleaning the combustor once a year, preferably
when your flue system is serviced, is sufficient
for most users.
CAUTION: BOILING WATER MUST BE USED
TO CLEAN THE COMBUSTOR.
Prepare a mixture of white vinegar and distilled
water for cleaning of the combustor. A gallon
of distilled water should be available for rinsing
of the combustor after cleaning.
White vinegar – 1 QUART enough to make a
50/50 solution with the distilled water to cover
the combustor.
Distilled Water – 1 QUART enough make a
50/50 solution with the white vinegar to cover
the combustor.
Rinse Water – 1 GALLON of distilled water.
Combine the whitevinegar and thedistilled water
in a pot large enough to soak the combustor.
Bring the solution to a boil.
Soak the combustor in the solution for ap-
proximately 30 MINUTES. The solution may
need to be reheated for maximum cleaning
effectiveness.
Rinse the combustor – Thoroughly rinse the
combustor in the distilled water.
Remove the combustor from the rinse water
and gently shake out the excess water.NOTE:
THE COMBUSTOR MUST BE COMPLETELY
DRY PRIOR TO USE.
Catalytic Combustor Housing
Combustor Assembly
Catalytic Combustors
Figure 7
COMBUSTOR ASSEMBLY REMOVAL INSTRUCTIONS
1. Remove the left and right baffles which are resting on top
of the (3) secondary Burn Tubes.
2. Rotate each of the (2) Combustor Assembly support
brackets (underneath the assembly tray) towards the front
of the appliance, being careful not to drop the assembly
3. Rotate the assembly forwards and down, until it may be
removed from the tray.
4. Installation is reverse of removal. Before re-installing the
combustor assembly, a bead of mill-pack should be applied
to the rear surface of the box, so that when it is rotated up
and into position it seals to the bracket behind it.
Secondary Burn
Tubes (3)
SECONDARY AIR TUBE REMOVAL IN-
STRUCTIONS
1. Remove the two ceramic baffles, gently
pulling them forward and down.
2. To remove the burn tubes first remove the
bracket which position and secures the
tubes in place. This is done be removing
the (2) screws (see Figure 8)which hold
this bracket in place (upper left side, inside
the firebox).
3. Once the bracket is removed, each tube
may be removed by sliding it to the left and
dropping the right, and the sliding the tube
to the right.
4. Re-installation is in reverse order.
Catalyst Monitoring
It is important to periodically monitor the opera-
tion of the catalytic combustor to ensure that it
is functioning properly and to determine when
it needs to be replaced. A non-functioning com-
bustor will result in a loss of heating efficiency,
and an increase in creosote and emissions. Fol-
lowing is a list of items that should be checked
on a periodic basis:
• Combustors should be visually inspected at
least three times during the heating season
to determine if physical degradation has
occurred. Actual removal of the combustor
is not recommended unless more detailed
inspection is warranted because of decreased
performance.
If any of these conditions exists, refer to Cata-
lyst Troubleshooting section of this owner’s
manual.
• This catalytic heater is equipped with a tem-
perature probe to monitor catalyst operation.
Properly functioning combustors typically
maintain temperatures in excess of500°F, and
often reach temperatures in excessof 1,000°F.
If catalyst temperatures are not in excess
of 500°F, refer to Catalyst Troubleshooting
section of this owner’s manual.
• You can get an indication of whether the cata-
lyst is working by comparing the amount of
smoke leaving the chimney when the smoke
is going through the combustor and catalyst
light-off has been achieved, to the amount of
smoke leaving the chimney when the smoke
is not routed through the combustor (bypass
mode).
Figure 8
Secondary Air Tubes (3)
Screws (2)
Ceramic Baffles
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10

1
2
3
4
5
6
6
2
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
11
WARNING
Disposal of Ashes: Ashes should
be placed in a metal container
with a tight fitting lid. The closed
container of ashes should be
placed on a non-combustible
Floor or on the ground well away
from all combustible materials,
pending final disposal. If the
ashes are disposed of by burial
in soil or otherwise locally dis-
persed, they should be retained
in the closed container until all
cinders have thoroughly cooled.
The intense heat of the fire will normally cause
hairline cracks in the refractory brick. These
cracks can be minimized by proper curing as
described in section First Fires. They will not
normally diminish the effectiveness of the
refractory brick. If large cracks develop, then
the refractory should be replaced. To replace
the refractory bricks, follow these steps:
1. Remove the side refractory brackets (6)
2. Remove the front refractory bricks (3)
3. Remove the bottom refractory brick (4)
4. Remove the left side refractory bricks (5)
5. Remove the right side refractory bricks (2)
6. Remove the back refractory brick (1)
To install the new refractory bricks, follow the
above steps in reverse.
DISPOSING OF ASHES
Whenever ashes get 3 to 4 inches deep in your
firebox, and when the fire has burned down and
cooled, remove excess ashes. Leave an ash bed
approximately 1 inch deep onthe firebox bottom
to help maintain a hot charcoal bed.
Remove ashes only when the fire is out and
the ashes are cold (24 to 48 hours after the
fire is out).
Do not leave the ashes in the house as they give
off carbon monoxide and other toxic gases.
Figure 9
1. Back Refractory
2. Right Side Refractory
3. Front Refractory Bricks
4. Bottom Refractory
5. Left Side Refractories
6. Side Refractory Brackets
REFRACTORY REPLACEMENT

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12
DOOR INSTALLATION
The doors must be put in place only when the installation of the fireplace
is completed. All you have to do is fit the male part of the hinge, already
on the door, to the female part, which is on the fireplace. To remove the
doors, simply pull them up from the hinges. The door adjustment has
been set at the factory. If the fit is still not perfect, you can adjust the
door using the hinge screws (See Figure 11-1)
Figure 10 - Door Installation
Checking Door Seal
A one-inch strip of paper may be used to perform a test of the integrity
of the door seal. Close the door on the paper in at least eight points. It
is normal to feel only a slight amount of friction. The door gasket does
not need to be “tight” in all areas, since a small amount of leakage is not
hazardous or detrimental to the performance of your fireplace.
GLASS CARE
Glass Replacement
The glass used for the fireplace is a high temperature ceramic glass
(1,400° F). If the glass breaks or cracks, it must be replaced with an
identical ceramic glass. Tempered glass or ordinary glass will not with-
stand the high temperatures of the fireplace. Replacement glass should
be purchased from a IHP dealer (see “Replacement Parts” on Page 27).
DO NOT OPERATE THE UNIT WITH CRACKED OR BROKEN GLASS.
Glass Cleaning
The fireplace is designed to keep the glass clean under normal operating
conditions. If the fireplace is operated continuously with the primary air
control closed, the glass will tend to get dirty unless the fuel, firebox and
glass are maintained at hot temperatures (see section Refueling For Best
Performance). To clean the glass, there are a number of specially designed
cleaners to remove creosote. Your IHP Dealer can recommend a suitable
cleaner. Regular household glass cleaners will not clean creosote. Do
not use abrasives such as steel pads, steel wool or oven cleaner as
they will scratch the glass.
DO NOT USE CHEMICAL GLASS CLEANERS ON PAINTED SURFACES AS
IT MAY CAUSE THE PAINT TO PEEL.
CAUTION : DO NOT ALLOW WINDOW CLEANER TO GET IN CONTACT
WITH DOOR GASKET OR PAINT ON FACADE OR DOOR. ONCE CLOSED,
CONTACT OF GLASS CLEANER WITH THE FIREPLACE FACADE CAN
LEAD TO PAINT PEELING OFF.
Gasket Replacement
Remove the doors from the unit (see section Door Installation) and lay
them on a clean nonabrasive surface. To replace the gasket, first remove
all of the old gasket and gasket cement. Make sure that the surface is
totally clean before applying new cement (a high temperature silicone
caulking rated at 500° F (260° C), is suitable) or adhesion problems may
result. Apply gasket cement to the gasket channel and install the new
gasket. This replacement part is available from your IHP dealer in the
following dimensions:
WARNING
• Use only a IHP glass doors, specifically designed
for the WCT6940WS fireplace.
•
The fireplace cannot be operated without both
doors. Consult your dealer to select the correct
replacement door.
• Important! To assure proper alignment of glass
doors: Install this fireplace in a square and
plumb condition, using shims as necessary at
sides and/or bottom.
2
Figure 11
Gasket Part # Length Qty Dimensions
Around the
glass PR-SR1685C 61-3/4” (1569 mm) 21” width x 3/16” thick (26 mm x 5 mm)
On the door
frame PR-SR1823I 48-3/8” (1229 mm) 23/4” diameter (19 mm)
Between the
doors PR-SR1823J 17-5/8” (448 mm) 25/8” diameter (16 mm)
Table 1
DOOR ADJUSTMENT
The doors may need to be adjusted to be completely airtight. The gaskets’
air-tightness can be adjusted using the adjustment screw located on the
right side of the fireplace facade (An Allen key #1/8 – not supplied - will
be necessary for this adjustment) (see Figure 11-2).
1
3/8” hex nut
#1/8 allen key

Marginal Location
Wind Direction
Location
Not
Recommended
Outside Air Intake
Facing the Wind
Location
Not
Recommended
Location Recommended
Figure 12
FIREPLACE INSTALLATION
Locating The Fireplace
The best location to install your fireplace is determined by considering
the location of windows, doors, and the traffic flow in the room where
the fireplace is located, allowing space in front of the unit for the hearth
extension and the mantel, and taking into consideration the location of
the hot air ducts (optional), outside air kit and chimney. If possible, you
should choose a location where the chimney will pass through the house
without cutting floor or roof joists (see fireplace dimensions on Page 15).
Usually, no additional floor support is needed for the fireplace. The ad-
equacy of the floor can be checked by first estimating the weight of the
fireplace system. Weights are given in the appendix. Next, measure the
area occupied by the fireplace. Note the floor construction and consult
your local building code to determine if additional support is needed.
This fireplace must be installed on a 1/2” minimum non-combustible
surface and at a minimum of 80” measured from the base of the appli-
ance to the ceiling is required.
When selecting the location, the chimney outlet position and the direction
of the wind are important factor affecting the chimney performance. To
allow a maximum draft and to reduce wind turbulence, the chimney must:
• Penetrate the highest part of the roof.
• Be installed as far as possible of roof offsets, trees or any other
obstructions that may cause wind turbulence and back drafts in the
chimney.
• The least amount of offsets (elbows) possible. NOTE: A maximum of
2 offsets is allowed.
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
13

If this fireplace is being installed in a cold climate, it is especially important to seal all cracks
around the fireplace and wherever cold air could enter the room with noncombustible material.
Also, the outside air inlet duct should be wrapped with noncombustible insulation to minimize
the formation of condensation. Do not place insulation materials directly against the chimney
sections. We recommend that you use the insulated wall radiation shield since it will maintain the
home’s thermal barrier. AC chimney is NOT recommended in very cold climates (in areas with
temperatures below 32°F (0°C).
Figure 14 Non-Combustible Material
46-5/16”
16”
24”
45 Deg.
Area where
wood Mantel
can be
installed
4”
(102mm)
(406mm)
56”
(1422mm)
Min.
12” Max.
(305mm)
(1176mm)
24”
(610mm)
(610mm)
Hearth
Extension
Mantel
Facade Installation
Install the Facade per instructions provided in
Facade Kit (ordered separately - see Page 26).
Framing, Facing And Mantel
The construction of the framing, facing, and
mantel must be in accordance with the stan-
dards and the following illustrations (Figures
15 and 16):
A. Frame the fireplace using 2” x 3” or heavier
lumber.
B. WARNING: Combustible materials can-
not be used in the space directly above
the fireplace, except for the studs above
the facade that support the facing and
mantel. This area must remain empty
for a height of 80” (2,032 mm) measured
from the base of the appliance.
C. Frame the fireplace with vertical studs at the
sides of the fireplace running from floor to
ceiling(see Figure 15). If combustible facing
is to be used, position the studs back, from
the front edge of the fireplace (a space that
is the thickness of the facing material, so
that the facing can be installed flush with the
fireplace facing). Frame headers between
the vertical studs only as follows:
- Place 2” x 3” or 2” x 4” headers,
only along the upper part of the front,
side and back faces (some codes
may require a 2” x 6” on an outside
bearing wall). Do not put wood or
any combustible material within the
area above the fireplace except on the
front facing.
- Place headers only as required to sup-
port the facing and mantel.
D. WARNING: The fireplace must not be in
contact with any insulation or loose fill-
ing material. Cover the insulation with
Drywall panels around the fireplace.
Hearth Extension Requirements
The WCT6940WS fireplace may be installed
directly on a combustible floor. The supplied
safety metal strip must be positioned asfollows:
One half under the front of the fireplace and the
other half must extend on the floor over which
thehearth extension will be built(see Figure 13).
* The safety metal strip must cover the entire
width of the fireplace
The combustible floor in front of the fireplace
must be covered with a non-combustible mate-
rial (tile, marble, stone, etc). See Figure 14.
COLD CLIMATE INSTALLATIONS
Climates where temperatures will fall below
32°F (0°C).
The heating performance of the appliance will
vary depending upon the level of insulation,
housedesign, howthe appliance isoperated, etc.
WARNING: THE HEARTH
EXTENSION IS TO BE
INSTALLED ONLY AS IL-
LUSTRATED.
Figure 13
uElevated fireplace installations
require a special “Z” Metal
Safety Strips (field provided),
in place of the safety metal strip
shown above. The safety strip
should extend the full width of
the fireplace. When more than
one safety stripis usedthey must
overlap by a minimum of 1”.
Platform
2”
Fireplace
Elevated Fireplaces
u
The crack between the fireplace
and the hearth extension must be
sealed with a non-combustible
material such as sand-cement
grout.
NOTE: This Fireplace must be in-
stalled on a non-combustible surface.
Safety Metal Strip Floor
Hearth Extension
Non-Combustible
Finish Material
(e.g. Tile or Marble)
Minimum 1”
Cement Board
Fireplace
v
v
Hearth extension of an elevated fireplace
must respect the same minimal dimensions
as a fireplace installed directly on the floor.
1/2” Min.
Non-combustible
Surface
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
14

Notes
Diagrams, illustrations and photographs are not to scale – consult installation
instructions. Product designs, materials, dimensions, specifications, colors and
prices are subject to change or discontinuance without notice.
All framing dimensions calculated for 1/2" dry wall at the fireplace face. If
sheathing the chase or finishing with other thickness materials, calculations
will need to be made.
* The fireplace must not be in contact with any insulation or loose filling material.
Cover the insulation with Drywall panels around the fireplace.
Fireplace Framing
Header
B
A
1”
11-1/8”
16-1/4”
26”
1”
1-1/8”
26-1/4”
10-1/4”
41-3/4”
47” 
49-3/8”
46-1/4”
43-1/4”
37”
31”
15”
7”
4-1/4”
28-1/2”
5-5/8”
20-1/8”
28-1/2”
5-5/8”
10-3/8”
3”
29-1/2”
23-3/4”
F
D
J
E
CORNER
INSTALLATION
Figure 15
** Total depth is 28-1/4” including the back
spacer minus 1/2 inch for drywall to be flush
with the facing.
7’
Min. B
G
2 x 3
Min.
1. Combustible material must be installed flush with
the fireplace. It may not project in front of and on
the fireplace (e.g. the steel facade of the fireplace)
(Figure 20).
2. Non-combustible materials such as brick, stone
or ceramic tile may project in front of and onto
the fireplace facing (Figure 18).
IMPORTANT
The facade must be removable once
installed. The facade is designed to
overlap any facing material installed
on the front of the fireplace. If thicker
material is installed, use the facade
as a template and make sure it can
be easily removed for servicing.
FACING
Rough Framing Face
(dimension includes finish
material inside framing, if any)
OUTSIDE CHASE
G
C
H
L*
Back Wall of Chase/Enclosure
Including Finising Materials if any
Rough Framing Face (Unfinished Shown)
A
* Zero Clearance From Back Spacer to Wall
L*
uThe front framing width (A=
46-1/4”) will need to be 47”
before pushing the fireplace
into framing.
Non-combustible
Combustible materials can NOT be used in the space directly
above the fireplace. Do not fill the space above the fireplace
with any material (Except the wood framing)
Top View
Front View
Right Side View
Left Side View
**Gravity Vent Outlets
**
K
Combustion Air Kit
K (allow space when framing)
FRAMING DIMENSIONS
Fireplace Opening Width
A u46-1/4” 1175 mm
B50” 1270 mm
C42-3/4” 1086 mm
D20-7/8” 530 mm
E93-7/8” 2384 mm
F47” 1194 mm
G** 28-1/4” 718 mm
H26-3/4” 680 mm
J66-3/8” 1686 mm
K8” 203 mm
L* 1” 26 mm
*
**
*
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
15

Figure 16
Figure 17
Insulated Chase Construction
7 Ft.
Min.
Attic
Radiation
Shield
Roof Support
Storm
Collar
Flashing
Drywall or
Any Rigid
Material
2” x 4”
1/2” Plywood
6’ 8”
Min.
Firestop
* Floor
Ceiling
Wall
* Floor
Ceiling
Wall
Fireplace
Insulate Joists
Same As Ceiling
Draft Stops
Firestop
CTDT
Termination
Note: Non-
Combustible
Chase
Flashing
Must Be
Used To
Cover
Chase
Opening
Optional
Insulation
In Outside
Walls Of
Chase
Solid
Continuous
Surface
Outside
Base
Insulation
(Thermal Barrier)
8'
Level
NOTE: It is recommend-
ed that the chase walls
and floor be insulated in
the same manner, using
the same insulation, as
the rest of the building,
below the attic.
• Must have the same firestopping
resistance as adjacent wall.
• Must have the same insulation as
adjacent ceiling.
• Followlocal rules regarding fram-
ing construction.
13
4
5
6
2
1
2
7
3
4
1. Fireplace
2. Front of fireplace
3. Wood frame (2” x 3” min)
4. Drywall
5. Tiles
6. Rock board or other
7. Brick
Fireplace Frame Section
(Top View)
Figure 18
Only non-combustible material
should be superposed or project-
ing over the front of the fireplace.
Figure 20
50”
Min.
SEE NOTE
MANTEL and FACING
The mantel must be installed at least 56” (1143
mm)above the base of the fireplace (Figure 19).
Nailing Flanges
Four nailing flanges are provided to secure the
fireplace to the floor (see figure below). Bend
the nailing flanges down so that each flange is
flush with the floor, then using nails or screws,
secure the fireplace to the floor (2 places each
side). The heads of the screws or nails must
be large enough to completely cover the holes
in the nailing flanges.
Nailing Flange
(2 places each side)
Unbend to floor
and nail/screw
Fireplace Side
7 Ft.
Min.
Attic
Radiation
Shield
Roof Support Storm
Collar
Flashing
Drywall or
Any Rigid
Material
2” x 4”
1/2” Plywood
6’ 8”
Min.
Firestop
* Floor
Ceiling
Wall
* Floor
Ceiling
Wall
Fireplace
Figure 19
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Mantel
Noncombus-
tible Facing
56”
Drywall
2 x 3 Min.
Spacer
Mantel and Facing
(Side View)
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Rock Board or Other
Noncombustible
Material
Noncombustible
Facing
Drywall
Rock Board or
Other Noncom-
bustible Material
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
16

Figure 22
Rain Cap
Flashing
Collar
Flashing
Roof Support
Attic
Radiation
Shield
Non-Combustible
Flameproof
Facing
Figure 23
Figure 21
When installing the double outlet system, thehot air outlets can be installed
in the same room as the fireplace, or one or both of the outlets can be
installed in adjacent or upper rooms. Installing the ducts at different eleva-
tions will tend to exhaust more heat out of the higher outlet (Figure 22).
Frame
Grill
Maintain at least 6-1/2”
(160 mm) clearance from
the outlet grill framing to
a combustible ceiling,
side wall or mantel.
Outlet Grill
Outlet Grill
WARNING: The outlet
grills should not be
installed facing up-
ward through a floor.
Danger of burns can
result if grills in floor
are stepped on.
6-1/2” (165mm)
Min. (to ceiling)
Firestop
10’
(3.1m)
Max.
13” x 13”
(330mm x 330mm)
10’ (3.1m)
Max.
68” Min.
(1727mm)
56” Min.
(1422mm)
Fireplace Blower
The fireplace comes equipped with a heat activated blower. It is located
in the bottom of the fireplace, towards the back. It uses 120 V and must
be connected to the main electrical circuit by a qualified electrician. For
connection, use the electrical box supplied with the unit located on the
bottom right corner of the fireplace.
If you wish to adjust the blower speed, the variable speed control (VRUW)
provided must be installed in line with the wiring. Again, use a qualified
electrician for installation.
If the blower requires servicing,
1- Remove the doors and decorative facade.
2- Remove the screw located below the blower motor that holds it to the
back of fireplace.
3- Pull the blower out of the unit through the square hole located in the
front bottom right corner.
HOT AIR DUCTING INSTALLATION
This fireplace is approved for use with a Gravity Kit:
Gravity Kit
The gravity kit is designed for double hot air outlets and includes:
(See Figure 21)
- 2 telescopic lengths 8” I.D.
- 2 90º elbows 8” I.D.
- 2 hot air outlet kits (grill and frames)
- 2 adaptors
See Gravity Kit Accessories on Page 23.
Only the blower available with the fireplace can be used with the gravity kit.
For safe installation, the gravity kit must meet the following requirements:
Minimum height* 68” (1,727 mm)
Maximum length See Figure 22
* The height of the louver must be measured from the base of the
fireplace to the middle point of the louver.
WARNING: Both pipes of
the double hot air outlet
must be installed. Any oth-
er installation may cause
fire and void warranty.
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
17

The duct system must be installed respecting the following:
1. Remove the plates closing up the 8” diameter holes on top of the
fireplace. Then, cut the insulation in order to obtain two 8” dia. open-
ings. Fix the adaptors on the fireplace openings by turning clockwise
(Figure 21).
2. Maintain at least a 2” (50 mm) clearance between the ducts and any
combustible material; the required hole size is 13” x 13” (330 mm x
330 mm).
Exception #1: For the grills, the framing can be 10-3/4” x 10-
3/4” (275 mm x 275 mm) to provide the clearance as required
by the integral spacers on the double outlet duct system.
3. The maximum number of elbows in a run of duct is two.
4. Maintain at least 6-1/2” (160 mm) clearance from the outlet grill
framing to a combustible ceiling, side wall or mantel.
5. When traversing a combustible wall or floor, a firestop must be installed
at the wall or floor penetration. The hole size must be 13” x 13” (330
mm x 330 mm)
6. Do not connect the hot air ducts to a central heating system. Malfunc-
tion of the heating system’s blower will cause the fireplace to overheat.
A furnace duct is only single wall and not double wall as is required
for the fireplace hot air exhaust.
7. Use only IHP grills and components as described in this manual.
Other grills or registers may be too restrictive and may overheat the
fireplace or ceiling.
8. Do not use insulated flexible ducts as they will overheat.
9. Do not use tees or any other components than the ones specifically
listed here.
10..Never allow the ducting to pitch down as hot air will be trapped creat-
ing a fire hazard. Never route the ducting downwards.
11.The hot air outlet grills must be installed with the louvers pointing
downwards in order to prevent overheating adjacent ceilings.
OUTSIDE AIR KIT
It is mandatory to install an outside air connection to the fireplace.The
following components are required and are included with the fireplace:
• Outside air kit (includes 4 inch flex that goes up to ten (10) feet long)
• 4” Adaptor for fireplace connection
Outside Air Installation
The outside air assembly may be installed according to the following
requirements:
A) Duct length should be kept to a minimum. The maximum length of a
4” interior diameter (100 mm) insulated flexible duct is 20 feet (6.1 m).
The duct can be extended to a maximum of 40 feet (12 m) using a 6”
interior diameter (150 mm) insulated flexible duct (See note below).
B) The air intake register must not be installed more than ten (10) feet
(3050 mm) above the base of the fireplace.
C) The fresh air must come from outside the house. The air intake must
not draw air from the attic, basement or garage.
D) The air intake should be installed where it is not likely to be blocked by
snow or exposed to extreme wind and away from automobile exhaust
fumes, gas meters and other vents.
E) The duct and register may be installed above or below floor level.
NOTE: We recommend not to exceed 20 feet of 4” flexible pipe. If you
require a longer length we recommend that you use a 5” diameter flex-
ible pipe for the complete run up to 30 feet and a 6” diameter pipe for a
run of up to 40 feet.
Figure 24
OUTSIDE CONNECTION
Outside
Intake
Screw
Opening
Facing
Down
Wall
Aluminum Tape
Plastic
Cover
Insulation
Flexible Pipe
Aluminum Tape
Figure 25
Aluminum Tape
Aluminum Tape
Fireplace
Connection
Plastic
Cover
Insulation
Flexible Pipe
Fireplace
OUTSIDE AIR CONNECTION TO THE FIREPLACE
Make a 4-1/4” (110 mm) hole in the outside wall of the house at the chosen
location. From outside, place the outside air register in the hole (open
side down) and fasten the register to the wall with screws as shown (see
Figure 24). Slip the pipe into the insulated sleeve. Place the insulated
pipe over the register tube and over the fireplace’s outside air connector
(see Figure 25). At each end, carefully pull back the insulation and plastic
cover exposing the flexible pipe. Using the aluminium tape provided,
wrap the tape around the joint between the flexible pipe and the air inlets.
Carefully push the insulation and plastic cover back over the pipe. Using
aluminium tape, fasten the plastic cover in place.
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
18

*Available from Security Chimneys™
DRAFT REQUIREMENTS
Draft is the force which moves air from the appliance up through the
chimney. The amount of draft in your chimney depends on the length of
the chimney, local geography, nearby obstructions and other factors. Too
much draft may cause excessive temperatures in the appliance and may
damage the catalytic combustor. Inadequate draft may cause backpuffing
into the room and `plugging’ of the chimney or the catalyst.
Inadequate draft will cause the appliance to leak smoke into the room
through appliance and chimney connector joints.
Anuncontrollable burn or excessive temperature indicates excessive draft.
THE CHIMNEY SYSTEM
Chimney Installation Notes
1. This appliance is equipped with a universal vent collar that will require
the first vent section of pipe to be secured with four screws to the
collar (equally spaced around circumference).
2. If possible, install an interior chimney as it will provide better perfor-
mance. In areas with continuous temperatures below 0°F (-18°C),
the use of an exterior chimney increases the likelihood of operating
problems such as low draft, high rate of creosoting, and poor start-up
characteristics. Exterior chimneys are also prone to down-drafting
and flow reversal. Installations which are located on lower floors in
the house, such as in a basement, in combination with an outside
chimney, are especially prone to flow reversal.
3. The fireplace model WCT6940WS may be installed only with Security
Chimneys International Ltd 7” diameter chimney systems*model
Secure Temp®S2100+ / Nova Temp®HT6000 / Secure Temp GX
(U.S. only) / ACBI.
4. A chimney venting a fireplace shall not vent any other appliance.
5. Theminimum chimney height is 12 feet(3.7 m) excluding the fireplace.
6. All chimney installations must include at least one support in order to
be able to take any lateral load. The maximum chimney length that
can be supported by the fireplace is nine (9) feet (2.75 m) for Secure
Temp S2100+*/ Nova Temp HT6000+*/ Secure Temp GX*and 26
feet (8m) for ACBI*(air cooled) chimney. In altitude, add 18” (450
mm) to the chimney for every 2,000 feet (600 m) above sea level.
7. The chimney must extend at least three (3) feet (915 mm) above
its point of contact with the roof and at least two (2) feet (610 mm)
higher than any wall, roof or building within ten (10) feet (3 m) of it
(Figure 26).
8. If the chimney extends higher than five (5) feet (1,500 mm) above its
point of contact with the roof, it must be secured using a roof brace.
9. A rain cap must be installed on top of the chimney. Failure to install
a rain cap may cause corrosion problems.
10. Cut and frame square holes in all floors, ceilings, and roof that the
chimney will go through to provide a 2” (51mm) clearance between
the chimney and any combustible materials. At the point of penetra-
tion through the floors, ceilings or roof, a 1” (25mm) clearance is
acceptablefor AC chimney*only (see Table 2). Do not fill the required
clearance spaces with insulation or any other combustible material.
11. Portions of the chimney which may extend through accessible spaces
must be enclosed to avoid contact with combustible materials or
damage to the chimney.
12. When offsets are used, the pipe may not penetrate a ceiling or floor
unless it is running vertical (no 30° offsets).
Chimney Model SQUARE HOLE
SIZE OPENING
Secure Temp®S2100+ Nova
Temp® HT6000+ Secure Temp GX 15 in (380 mm)
ACBI: Ceiling, Floor and Roof
(1” clearance *) 15 in (380 mm)
Wall 17 in (432 mm)
NOTE: See Table 3 for Sloped Roof Framing
Table 2 - Flat Roof Framing
* The following exception has been approved for this appliance; The required 2”
pipe clearance may be reduced to a 1” clearance at the ceiling, floor and roof
penetrationpoints for AC chimney*only.Allotherlocations require 2” clearance.
NOTE:2" clearance to combustiblesaround chimney components required.
NOTE: Blown or fill type insulation materials must not be in contact with
the fireplace or in the enclosure frame as described in ‘’Enclosure’’ section.
NOTE: Local codes may not require firestopping at the ceiling levels for
outside chase installations. However, it is recommended for safety and
the reduction of heat loss.
CHIMNEY INSTALLATION INSTRUCTIONS
1. Cut and frame the holes in the ceiling, floor and roof where the chimney
will pass (see Figure 27). Use a plumb-bob to line up the center of
the holes. The sizes are indicated in Table 2 for the floor and ceiling
holes and Table 3 (Page 18)for the roof holes.
Figure 26
two (2) feet Min.
three (3) feet Min.
ten (10) feet
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
19

*Available from Security Chimneys™
2. From below, install a firestop in each ceiling/
floor separation through which the chimney
will pass. At the attic level, install an attic
radiation shield from above (Figures 28a
and 28b).
3. For Secure Temp
®
S2100+ / Nova Temp
HT6000+ / Secure Temp GX chimneys
*
,
place the first chimney length on the fire-
place. To lock it in place, turn 1/4 of a turn
clockwise. With the ACBI chimney, you must
use a starter section before installing the
first chimney length (Figure 29). Continue
installing chimney lengths making sure to
lock each length in place.
4. Every time the chimney passes through
a ceiling or a wall, install the appropriate
firestop. When you reach the desired height,
install the roof support. When installing a
support, slightly lift the chimney system so
the weight will lie on the support, not on the
fireplace to reduce expansion noises (Refer
to instructions included with the support).
For an ACBI chimney
*
use an universal
support AC10SU
*
.
5. Put the roof flashing in place and seal the
joint between the roof and the flashing with
roofing pitch (see Figures 30 and 31). For
sloping roofs, place the flashing under the
upper shingles and on top of the lower
shingles. Nail the flashing to the roof, using
roofing nails.
6. Place the storm collar over the flashing, and
tighten it with the bolt supplied. Finally, seal
the joint between the storm collar and the
chimney, using silicone caulking.
7. Install the chimney cap.
Once the chimney
cap is in place, the roof flashing can be
washed with a solvent or vinegar and then
painted with rust-proof paint.
Figure 27
Figure 28a
S2100 / HT6000+
Solid Packed Pipe*
ACBI
Air Cooled Pipe*
Figure 28b
Figure 29
CHIMNEY INSTALLATION
MODEL ACBI*Rain Cap
Collar
Flashing
Attic Radiation
Shield
Firestop
Universal Support
ACBI Starter Section*
ACBI7SB
or
ACBI7SB30
NOTE: Outside air kits must be
installed for both fireplace and
ACBI chimney.
Outside Combustion
Air Kit
Chimney Outside
Air Intake
(required when
using AC chimney)
Attic Radiation Shield
Attic Radiation
Shield
Radiation Shield
Firestop
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
20