SUPREME FUSION 18 User manual

FUSION 18
FUSION 24
Owner’s Manual
This product is proudly manufactured in North America by SUPREME FIREPLACES INC.
3594 Jarry East, Montreal, QC H1Z 2G4
T: 877-593-4722, F: 514-593-4424
www.supremem.com
Revised: January 2023
IMPORTANT: Keep the owner’s manual for future use.

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Table of Contents
1SAFETY.....................................................................................................................................................4
2COMPONENTS..........................................................................................................................................5
2.1 Overall Dimensions –FUSION 18.......................................................................................................5
2.2 Overall Dimensions - FUSION 24........................................................................................................6
2.3 Specifications......................................................................................................................................7
2.4 Combustion Air Control .......................................................................................................................8
2.5 Baffle Secondary Burn Technology .....................................................................................................8
2.6 Cold Hand Key....................................................................................................................................8
2.7 Chimney Sweeping Cap......................................................................................................................8
2.8 Door....................................................................................................................................................9
2.9 Blowers ...............................................................................................................................................9
2.10 Optional Fresh Air Adaptor..................................................................................................................9
2.11 Adjustable Legs...................................................................................................................................9
2.12 Liner Adaptor.......................................................................................................................................9
2.13 Surround ...........................................................................................................................................10
2.14 Adjustable Circulating Chamber ........................................................................................................11
2.15 Metal Tag..........................................................................................................................................11
2.16 Serial Number ...................................................................................................................................11
3INSTALLATION INSTRUCTIONS ............................................................................................................12
3.1 Preparing the Firebox for Installation.................................................................................................14
3.2 Liner Installation................................................................................................................................14
3.3 Adjustable Circulating Chamber ........................................................................................................14
3.4 Liner Adaptor Installation...................................................................................................................15
3.5 Firebox Installation............................................................................................................................16
3.6 Surround Installation..........................................................................................................................16
3.7 Clearances to Combustibles..............................................................................................................17
4OPERATION INSTRUCTIONS.................................................................................................................18
4.1 Fuel...................................................................................................................................................18
4.2 First Fires..........................................................................................................................................18

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4.3 Operating the Combustion Air Control...............................................................................................18
4.4 Starting a Fire....................................................................................................................................19
4.4.1 FUSION 18.................................................................................................................................19
4.4.2 FUSION 24.................................................................................................................................19
4.5 Adding a New Load of Wood.............................................................................................................20
4.5.1 FUSION 18.................................................................................................................................20
4.5.2 FUSION 24.................................................................................................................................20
4.6 Blower Kit..........................................................................................................................................21
4.7 Fresh Air Kit (Optional)......................................................................................................................22
4.8 Barbecue Grill (Optional)...................................................................................................................23
5TROUBLESHOOTING .............................................................................................................................24
5.1 Backdraft / Smoking ..........................................................................................................................24
5.2 Over Firing ........................................................................................................................................24
6MAINTENANCE .......................................................................................................................................25
6.1 Disposal of Ashes..............................................................................................................................25
6.2 Chimney Maintenance.......................................................................................................................25
6.3 Cleaning of Glass..............................................................................................................................26
6.4 Replacement of Door Gasket ............................................................................................................26
6.5 Replacement of Glass.......................................................................................................................26
6.6 Door Latch Lubrication ......................................................................................................................27
6.7 Paint..................................................................................................................................................27
6.8 Removal of Firebox...........................................................................................................................28
6.9 Replacement Parts............................................................................................................................28
7WARRANTY.............................................................................................................................................30
7.1 Warranty Limitations..........................................................................................................................30
7.2 Certification Label..............................................................................................................................32

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1 SAFETY
SUPREME FIREPLACES INC. congratulates you on purchasing a FUSION wood burning fireplace insert. This
insert complies with the ULC 628 and UL 1482 standards. In addition, this wood insert is certified to comply with
Phase II particulate emission standards from the US Environmental Protection Agency.
SAFETY NOTICE: Carefully read this manual before installation and operation of this insert. If not
properly installed, a house fire may result. To reduce the risk of a fire, follow the installation instructions.
Failure to follow instructions presented in this manual can lead to property damage, bodily injury or even
death. Alterations or modifications made on the unit, or the installation is strictly forbidden as it may
predispose the user to hazardous risks. Contact your local building or fire officials for restrictions and
installation inspection requirements in your area and the need to obtain a permit.
WARNING: This unit is hot during operation; keep children, pets, flammable liquids, or combustible
materials at a safe distance. Ensure that all clearances to combustible materials are respected. Contact
with the unit during operation may cause severe harm. Install a safety screen to keep children and pets
away.
CAUTION:
•Do not connect this unit to a chimney flue serving another appliance.
•Do not connect to any air distribution duct or system.
•Do not instal in a factory-built fireplace.
•Never use chemicals to ignite the fire.
•Never burn waste or flammable fluids (such as gasoline, naphtha, or engine oil).
•Only burn dry natural cordwood.
•Never leave the unit unattended with the door open or unlatched.
•Only refuel this unit when the wood is reduced to embers.
•Always keep the door closed during operation.
•Do not operate this unit with a fireplace grate.
•Do not install an unvented gas log set into the firebox.
•Do not install this unit in a mobile home.
•Do not clean or service the unit while it is hot.
•Allow proper air flow by keeping the louvers/openings clear of any obtrusions.
Note: Failure to respect the above cautions may cause damages to the unit, damages to personal property,
bodily harm and will void the warranty. “This wood heater needs periodic inspection and repair for proper
operation. It is against federal regulations to operate this wood heater in a manner inconsistent with operating
instructions in this manual.”

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2 COMPONENTS
2.1 Overall Dimensions –FUSION 18

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2.2 Overall Dimensions - FUSION 24

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2.3 Specifications
Model:
Fusion 18
Fusion 24
Appliance Type:
Adjustable Burn Rate Wood Heater –
Non-Catalytic
Adjustable Burn Rate Wood Heater –
Non-Catalytic
Fuel Type:
Dry Cordwood
Dry Cordwood
Maximum Log Length:
18 in (47 cm)
23 in (58 cm)
Burn Time1:
4 to 8 hrs
5 to 10 hrs
Firebox Volume:
1.85 ft3 (0.053 m3)
2.94 ft3 (0.083 m3)
Heating Area:
500 to 1,800 ft2(45 to 170 m2)
500 to 2,000 ft2(45 to 185 m2)
Average Particulate
Emissions Rate2:
1.90 g/hr
1.54 g/hr
Average CO Emissions
Rate3:
103.6 g/hr
129.7 g/hr
EPA Protocol:
Method 28R, ASTM2780-10, and
ASTM2515-11
Method ALT-125
Efficiency:
HHV4: 66.9% | LHV5:
HHV: 65.10% | LHV: 70.05
Heat Output:
10,958 to 22,421 BTU/hr (3,211 to
6,571 W)
16,266 to 44,605 BTU/hr (4,767 to
13,072 W)
Optimum Efficiency:
75%
75%
Optimum Heat Output:
60,000 BTU (17.6 kWh)
75,000 BTU (21.9 kWh)
Efficiency Protocol:
CSA B415.1-10
CSA B415.1-10
1
Depending on combustion air control setting (see Section 4.3 for further details).
2
Officially tested and certified by an independent.
3
Note that rate is smaller for low to medium/low burn rates.
4
Higher Heating Value.
5
Lower Heating Value.

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2.4 Combustion Air Control
The Combustion Air Control is a patented mechanism (Patent
No: US 7,325,541 B2) that regulates the air flow into the
firebox based on the temperature of the unit. It is located on
the top of the firebox, at the front center of the unit (see Figure
2-1). The combustion air control of the FUSION has two
components: the Activator and the Burn Rate Selector. The
left combustion control lever is the Activator. When starting a
fire or adding a new load of wood, the Activator must be
pushed in to allow a primary source of air to enter the firebox.
The Activator will retract automatically with heat. The right
combustion control lever is the Burn Rate Selector. The Burn
Rate Selector can slide sideways to achieve different burn
rates. When the Burn Rate Selector is positioned to the left, a
maximum burn rate is achieved and when it is positioned to
the right, a minimum burn rate is set.
WARNING: Never manipulate the Combustion Air Control
with bare hands as it gets hot when the FUSION is in
operation. Use the Cold Hand Key (see Section 2.6) to
adjust the Combustion Air Control.
2.5 Baffle Secondary Burn Technology
The baffle system(18FN1150 or 24FN1150)of the FUSION insert is located
within the upper portion of the firebox (Figure 2-2) and is fastened by 6 bolts
(3/8 Hex). SUPREME baffle systems are constructed out a specific grade
of stainless steel capable of withstanding high-temperature conditions. The
secondary combustion air is drawn into the baffle system, pre-heated, and
distributed below the lower plate, allowing for a cluster of small flames
flowing downwards. This effect is more visible in the minimum burn rates.
For optimal performance, it is recommended to clean any creosote build-up
on the lower plate of the baffle system.
2.6 Cold Hand Key
The Cold Hand Key (Figure 2-3) is an accessory that comes standard with the FUSION
insert. The Cold Hand Key is a tool used to manipulate the Combustion Air Control Levers
when it is hot.
2.7 Chimney Sweeping Cap
The chimney sweeping cap (Figure 2-4) found at the baffle of the FUSION
allows easy access for chimney sweeping without having to remove any
components of the firebox.
WARNING: The chimney sweeping cap should be blocking the access to
the chimney at all times during combustion. A chimney sweeping cap that
is not blocking the baffle hole during combustion is a safety hazard, will
overheat the fireplace and void the warranty.
Figure 2-1: Combustion Air Control Levers
Figure 2-3: Cold Hand Key
Figure 2-4: Chimney Sweeping Cap
Figure 2-2: Baffle Secondary Burn Technology

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2.8 Door
The FUSION wood burning insert comes with a Pyroceramic glass panel door. Pyroceramic is the highest grade
available for fireplaces and stoves and can withstand temperatures up to 1300oF. To remove the door, open the
door, lift it and pull it towards the bottom until the rod exits from the hinge holes.
NOTE: The door of the FUSION must always remain closed during operation.
2.9 Blowers
The FUSION wood burning fireplace insert is equipped with two AC centrifugal compact fans on either side of
the surround (electrical rating: 115V, 60Hz, and 19W). Please refer to Section 4.6 for more information on the
blower kit.
2.10 Optional Fresh Air Adaptor
The Optional Fresh Air Kit allows for exterior air (outdoors) to be drawn into the
fireplace during operation of the unit. Note that a 4 inches duct is required for the
installation (item ordered separately). Refer to Section 4.7 for installation
instructions. Contact your local building official regarding mandatory fresh air kit
installations within your area.
CAUTION: Only a fresh air kit provided by SUPREME FIREPLACES INC. can be
installed onto the fireplace. Substituting the fresh air kit may result in overheating
and will void the warranty.
2.11 Adjustable Legs
The FUSION insert is supplied with three adjustable legs (see Figure 2-5) to allow
adjustment of the height if the surround is not flushed with the wall of the masonry
fireplace.
2.12 Liner Adaptor
The FUSION Liner Adaptor (IN1110) (Figure 2-6) is a component that comes with
the FUSION and is required to connect a 5” stainless steel liner to the FUSION
insert.
Figure 2-5: Adjustable Leg
Figure 2-6: Liner Adaptor

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2.13 Surround
Optional surrounds are available for the FUSION wood burning insert series:
NOTE: SUPREME FIREPLACES INC. reserves the right to alter the dimensions of the surrounds without prior
notice.
Figure 2-8: Dimensions of FUSION 24 Surround Options
24FNFA-01-38 (Left) and 18FNFA-01-42 (Right)
Figure 2-7: Dimensions of FUSION 18 Surround Options
18FNFA-01-34 (Left) and 18FNFA-01-36 (Right)

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2.14 Adjustable Circulating Chamber
The adjustable circulating chamber (Patent: US 9,488,375 B2) is a
standard component of the FUSION insert (see Figure 2-9). It is
designed to prevent heat escaping from the existing chimney and
allows for an optimal flow and heat transfer. The width is adjustable
from 28” to 32” for the Fusion 18 and 32” to 38” for the Fusion 24.
The front height is adjustable from 21.75” to 24.75”with the rear
height fixed at 21.75”for the Fusion 18. The front height is adjustable
from 23.75” to 26.75”with the rear height fixed at 23.75” for the
Fusion 24. The hole for the stainless steel liner is adjustable by 2”
(front to rear).
NOTE: The circulating chamber requires minimal adjustments.
Please refer to Section 3.3 for detailed instructions.
2.15 Metal Tag
The Metal Tag is found on the front of the metal shipping crate and indicates that alterations have been made to
the masonry fireplace to accommodate the FUSION insert. The metal sheet having the Metal Tag is to be
installed with two screws at the Bottom of the Circulating Chamber. The Bottom of the Circulating Chamber
should have the side with the Metal Tag installed face up so the Metal Tag is visible if the firebox were to be
removed.
The Metal Tag reads as follows:
This fireplace has been altered to accommodate a fireplace insert and should be inspected by a qualified person
prior to re-use as a conventional fireplace.
Ce foyer a été modifié afin d'y insérer un foyer encastrable et doit être inspecté par une personne qualifiée avant
sa réutilisation comme foyer conventionnel.
2.16 Serial Number
The certification label contains important information regarding
the installation and operation of the FUSON fireplace insert. In
addition, the serial number of the unit is permanently embossed
onto the top right corner. The certification label is located below
the bottom right corner of the door and is accessible by
swiveling the plate (Figure 2-10).
Figure 2-9: Circulating Chamber
Figure 2-10: Location of Serial Number

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3 INSTALLATION INSTRUCTIONS
The masonryfireplace isto be constructed in accordance to N.F.P.A. 211(Latest Edition), Standards of Chimney,
Fireplaces, Vents and Solid-Fuel-Burning Appliances and Equipment. The FUSION fireplace insert is intended
only for masonry fireplaces installed with a continuous chimney liner of 5 inch diameter extending from the
fireplace insert to the top of the chimney. This insert must be connected to a code-approved masonry chimney.
The chimney size should not be less than or more than three times greater than the cross-sectional area of the
flue collar. The chimney liner must conform to the Class 3 requirements of CAN/ULC-S635, Standard for Lining
Systems for Existing Masonry or Factory-Built Chimneys and Vents or CAN/ULC-S640, Standard for Lining
Systems for New Masonry Chimneys. Contact a local building inspector for information on additional
requirements and/or codes in your area.
CAUTION: Read these instructions carefully before starting the installation. Failure to follow these
instructions may result in property damage, bodily harm and even death. Modifications of the
instructions presented in this section without written authorization from SUPREME FIREPLACES INC.
will void the warranty.
Be surethat the fireplace and chimneyare
clean and in good condition. Seal all
cracks using stove cement. Seal
permanently any openings between the
masonry of the fireplace and the facing
masonry. Remove or keep permanently
open the existing damper of the fireplace.
If there is an accumulation of creosote in
the chimney or flue, it must be thoroughly
cleaned. When installing, operating, and
maintaining a solid fuel heater, respect
basic standards for fire safety.
WARNING: Do not remove bricks or mortar from the masonry fireplace.
Refer to Table 3-1, Figures 3-1 and 3-2 for minimum opening dimensions of the masonry fireplace.
NOTE: The non-combustible hearth must extend a minimum of 20” (508 mm) from the front of the door and 8”
(203mm) on each side of the masonry fireplace opening.
Table 3-1: Minimum Opening Dimensions
Model:
Fusion 18
Fusion 24
A - Width (Front)
28’’ (711 mm)
32”(813 mm)
B - Width (Back)
18’’ (457 mm)
22”(559 mm)
C - Height
21.75’’ (553 mm)
23.25”(591 mm)
D - Depth
19’’ (483 mm)
19”(483 mm)
E - Hearth
Extension Length
44’’ (1,118 mm)
48” (1,219 mm)
F - Hearth
Extension Depth
20” (508 mm)
20” (508 mm)

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Figure 3-2: Minimum Opening Dimensions –Side View
NOTE: It is strongly recommended to install a carbon monoxide (CO) and smoke detector near the
location of the unit.
Figure 3-1: Minimum Opening Dimensions –Front View

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3.1 Preparing the Firebox for Installation
a) Unfasten and remove the front shipping cover of the unit (Figure 3-3).
b) Unfasten and remove the front shipping bracket (Figure 3-4). Note that after removal of the front shipping
bracket, the firebox of the FUSION will be able to slide forward.
c) Remove the screws from the back of the pallet to free the circulating chamber (Figure 3-4).
d) Bend the serial number plate horizontally.
e) Remove the door by opening it, lifting it, and pulling
it towards the bottom until the rod exits from the
hinge holes.
f) Level the firebox by setting the adjustable legs (see
Section 2.11). The adjustable legs must extend 1 ¼
inch from the bottom of the firebox.
g) Push the chimney sweeping cap upwards and place
it to the side (see Section 2.7).
3.2 Liner Installation
a) Determine the required length of liner by measuring
the bottom of the hearth to the top of the existing
chimney. NOTE: Additional length of the liner is
needed for proper installation of the flashing and
chimney cap. WARNING: The minimum and
maximum height of the liner is 15’ and 35’
respectively.
b) Slide the stainless steel liner down the existing
chimney.
c) Lower the liner 24 inches from the hearth.
d) Fill the space between the liner and the baffle of the
existing chimney with Stone Wool insulation to
prevent heat from escaping.
3.3 Adjustable Circulating
Chamber
CAUTION: Ensure that the text on the Metal Tag
(Section 2.15) is facing upwards before installing
the bottom cover.
a) Measure the width of the existing fireplace.
b) Extend the width of the Circulating Chamber
(Section 2.14) to the width of the existing fireplace
and fasten with the wing nuts provided.
c) Loosen the wing nuts of the adjustable liner hole.
d) Position the circulating chamber into the existing
masonry fireplace.
e) Lower the liner through the adjustable liner hole of
the circulating chamber.
f) Adjust the front height of the circulating chamber to the height of the existing masonry fireplace and
secure the wing nuts.
g) Adjust the position of the circulating chamber in order to have a distance of 10.5 inches from the face of
the liner to the face of the existing fireplace.
h) Tighten the wing nuts of the adjustable liner hole.
Figure 3-3: Shipping Front Cover Removal
Figure 3-4: FUSION Front Shipping Bracket

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NOTE: If the width and/or the height of the existing fireplace is/are larger than the maximal width
and/or height of the adjustable circulating chamber, extend the width and/or height of the circulating
chamber to the maximum and fill the space with Stone Wool.
3.4 Liner Adaptor Installation
Insert the 5” diameter liner adaptor (Section 2.12) at the end of the liner. The liner must be flush with the inferior
rim of the adaptor.
a) Tighten the clamp to secure the liner with the liner adaptor.
b) Secure the liner adaptor in place with the sheet metal screw provided.
Figure 3-5: Liner Adaptor Installation
Figure 3-6: Liner Adaptor Installation

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3.5 Firebox Installation
a) Slide the FUSION firebox into the circulating chamber.
b) Align the liner adaptor with the flue of the insert (Figure 3-7).
c) Insert your hand in the chimney sweeping cap opening and pull the liner down by its handle.
d) Use your thumb to bend the 4 tabs of the liner adaptor outward to secure the liner in place.
e) Reposition the chimneysweeping cap back in the chimney sweeping cap hole of the baffle (refer to Figure
3-5).
NOTE: The minimum and maximum height of the liner is 15 and 35 feet respectively.
WARNING:The chimney sweeping cap must block access to the chimney at all times during combustion.
A chimney sweeping cap that is not blocking the baffle hole during combustion is a safety hazard, will
overheat the fireplace and void the warranty.
3.6 Surround Installation
a) Install the surround and secure it with four screws, two on either side.
b) Install the door by inserting the upper rod into the upper hole and then lowering the lower rod into the
lower hole.
c) Inspect the installation. If the surround is not flush against the wall, level the firebox by using the
adjustable legs.
Figure 3-7: FUSION Installation

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3.7 Clearances to Combustibles
Refer to Figure 3-11 and Table 3-2 for the minimum clearances to combustibles:
Figure 3-11: FUSION Clearances to Combustibles –Front and Side View
Note that the non-combustible hearth must extend a
minimum of 20” (508 mm) from the front of the door and 8”
(203mm) on each side of the masonry fireplace opening.
WARNING: Keep a minimum distance of 5’ (152 cm)
from the unit to any combustible material (such as
firewood, furniture, and drapes) as a fire hazard
precaution. Failure to meet required clearances may
result in property damage and/or bodily harm.
The depth of the mantle is measured from the face of the
fireplace door. When the non-combustible wall is recessed,
the depth of the mantle can be increased by the amount of
the recess. Note that a mantel cannot be installed below
the minimum clearance of 34.5” (from the bottom of the
mantel to the base of the unit).
Sidewall from outer edge of
fuel door
15.5” (394mm)
Side trim from outer edge of
fuel door
7.5” (190.5mm)
Top trim from top edge of
fuel door
16” (406mm)
Protruding mantel (8”) from
floor (base of unit)
34.5” (876mm)
Protruding mantel (8”) from
top edge of fuel door
18.5” (470mm)
Maximum
Mantle Depth
Distance from the Base of
the FUSION to the Bottom of
the Mantle
8” (203 mm)
34.5” (876 mm)
10” (254 mm)
39”(991 mm)
12” (305 mm)
43.5” (1105 mm)
Table 3-3: Depth of Mantle with Respect to Distance of Base
Table 3-2: Clearances to Combustibles

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4 OPERATION INSTRUCTIONS
WARNING: READ THE OWNER’S MANUAL CAREFULLY BEFORE USING YOUR FIREPLACE
INSERT. The FUSION is not intended to serve as a primary source of heat. A primary source of heat
must be available in the home that the FUSION is installed in. Supreme is not responsible for heating
costs related to other sources of heat.
4.1 Fuel
The FUSION is designed to burn natural wood only. Higher efficiencies and lower emissions generally result
when burning air dried seasoned hardwoods (moisture content below 20%), as compared to softwoods or to
green or freshly cut hardwoods. The following are a few signs indicating that firewood is sufficiently dry for use:
(a) cracks onthe ends and surface of thelogs, (b) lighter in weight, and (c)color (yellow/grey). It is recommended
to use a moisture meter with pin sensors for determining accurately the moisture content of firewood (read
manufacturer’s instruction manual before operating). The optimum log length is 16-18 inches for the FUSION 18
and 20-22 inches for the FUSION 24, preferably split in halves or quarters and left to dry under a cover or away
from external elements for a minimum of one year prior to use. Use good quality dry cordwood only. DO NOT
burn garbage, lawn clipping, yard waste, materials containing rubber (including tires), materials containing
plastic, waste petroleum products, paints, paint thinners, asphalt products, materials containing asbestos,
construction debris, demolition debris, railroad ties, pressure-treated wood, manure, animal remains, coal, salt
water driftwoodor other previously salt water saturated materials, unseasoned wood, paper products, cardboard,
plywood, particle boards, or other foreign materials in this product. 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. Burning these materials may result in
release of toxic fumes or render the heater ineffective and cause smoke. Do not over fire the FUSION fireplace
insert. Over firing will damage the fireplace, is hazardous and will void the warranty. NOTE: Gas logs cannot be
installed in the FUSION fireplace insert.
WARNING: Never use gasoline, gasoline-type lantern fuel, kerosene, charcoal lighter fluid, or similar
liquids to start or “freshen up” a fire in this unit. Keep all such liquids well away from the fireplace insert
while it is in use.
Ecological or compressed logs could contain chemical additives that are not tested and approved to be used
with the FUSION. Using them will overheat and damage the fireplace and void the warranty.
WARNING: Do not keep the door open while the fireplace is in operation.
CAUTION: Store fuel away from the heater; refer to Section 3.7 for required clearances.
4.2 First Fires
For the first 3 fires, burn a maximum of 3 logs at the medium to low burn rate (refer to Section 4.3) to allow for
proper conditioning of the unit. Due to oil residues and the curing of the paint of the fireplace, it is normal to smell
an odor for the first fires of the FUSION. Open a window or a door near the fireplace insert to ventilate the house
during the first fires. Oil residues may cause light smoking.
4.3 Operating the Combustion Air Control
The burn rate andthe heat output arerelated to the amount of air entering the firebox. The combustion air control
of the FUSION has two components: the Activator and the Burn Rate Selector. When starting the fire or when
adding a new charge of wood, the fireplace needs additional air in order to establish a good fire. When the wood
starts to burn properly, the amount of air can be reduced depending on the heating requirements.

19
The left combustion control lever is the Activator. When starting afire oradding a new load of wood, the Activator
must be pushed in to allow maximum air to enter the firebox. The right combustion control lever is the Burn Rate
Selector. The Burn Rate Selector can slide sideways to achieve different burn rates. When the Burn Rate
Selector is positioned to the left, a maximum burn rate is achieved and when it is positioned to the right, a
minimum burn rate is set. Keeping the Burn Rate Selector to the right will burn the wood slower. Keeping the
Burn Rate Selector to the left will provide a stronger fire and keep the glass of the fireplace cleaner for longer.
Adjust the burn rate according to your heating requiremments and the quality of your wood. The combustion air
control will automatically and gradually close the primary air source to the selected burn rate setting (right lever)
with the presence of heat to maximize the burn time.
NOTE: The Burn Rate Selector can remain at the same setting if the burn rate is satisfactory. However, the
Activator must be pushed in when starting a fire or when adding a new load of wood.
WARNING: The combustion air openings should never be obstructed.
WARNING: Never manipulate the Combustion Air Control with bare hands as it gets hot when the
FUSION is in operation. Use the Cold Hand Key to adjust the Combustion Air Control.
WARNING: This wood heater has a manufacturer-set minimum low burn rate that must not be altered. It
is against federal regulations to alter this setting or otherwise operate this wood heater in a manner
inconsistent with operating instructions in this manual.
4.4 Starting a Fire
The FUSION has patented technologies and innovative features that make starting
a fire quick and easy. Before starting a fire, assure that all the safety precautions
mentioned in the owner’s manual are being respected. The following instructions
describe starting a fire in FUSION fireplace using a “top-down” approach, which
results in a cleaner, more efficient, and longer burn:
4.4.1 FUSION 18
a) Place two logs in the firebox. The logs should sit directly on the hearth.
Do not use a fireplace grate.
b) Place a third log at angle above the two logs of step a).
c) Place a fourth log above the logs of step a) and step b) (tilted upwards),
which will result in a “pocket” at the center of the firebox.
d) Push the left combustion control lever (the Activator) inwards.
e) Slide the right combustion control lever (the Burn Rate Selector) to the
desired burn rate. Positioning the Burn Rate Selector towards the left is
for maximum burn rate and towards the right is for minimum burn rate.
f) Place and ignite a firestarter within the “pocket”. Make sure that the
firestarter is visible from the opening (facing the front) and directly below
the logs of step b) and step c).
g) Once the firestarter is well lit, close the door. Do not leave the door open
for more than 2 minutes.
4.4.2 FUSION 24
a) Place small to medium size logs on the hearth of the firebox in the north-south direction. The logs
should sit directly on the hearth with adequate space between them to allow for proper air flow. Do
not use a fireplace grate.
b) Place kindling wood or small logs on top of the logs from step a). Keep a good distance from the top
layer of the kindling/logs and the baffle system (approximately 3 inches).
c) Push the left combustion control lever (the Activator) inwards.
Figure 4-1: Non-recommended
Wood Configuration
Figure 4-2: Recommended Wood
Configuration

20
d) Slide the right combustion control lever (the Burn Rate Selector) to the maximum burn rate position
(towards the left).
e) To achieve a “top-down” combustion, ignite the top layer of kindling/logs. A firestarter can be used to
facilitate ignition.
f) Once the top layer has properly ignited, close the door. Do not leave the door open for more than 2
minutes.
CAUTION: The wood should be placed away from the door to avoid damage to the glass.
WARNINGS: Over firing the unit may result in overheating and can damage the fireplace and/or result in
fire hazards. The maximum firewood load must not exceed 4 medium sized logs (approximately 25
pounds) for the FUSION 18 and 5 medium sized logs (approximately 30 pounds) for the FUSION 24. This
fireplace has been designed to burn with the door closed. When the fireplace is being used, the door
should remain closed at all times. Failing to do so is a safety hazard, will damage the fireplace and void
the warranty.
WARNING: Do not use fire accelerants to rekindle the fire if the first attempt to start the fire failed. Do
not open the door. Simply reactivate the Activator by pushing it inwards.
IMPORTANT: Sufficient air exchange is necessary for the fireplace to operate properly. Air is required in order
to maintain the combustion of the fireplace. If the house is airtight, the fireplace may not function properly. If the
fireplace is deprived of air, it will be necessary to provide a source of fresh air into the dwelling. This may be
done by using an air exchanger unit or simply by opening a window or a door near the fireplace partially for a
few minutes. Make sure that other equipment such as the kitchen exhaust fans or oil central heating systems
does not affect the fireplace functionality. Large return ducts of central heating systems located inthesame room
as the fireplace may affect the proper functioning of the unit and may cause smoking.
4.5 Adding a New Load of Wood
WARNING: Open the door to reload only when the wood has been reduced to embers, otherwise there is a risk
of smoke infiltration into the house.
When the wood has been reduced to embers and there’s no visible flame, you may add a new load.
4.5.1 FUSION 18
a) Crack the FUSION door open and wait a few moments before opening the door completely.
b) Use your fireplace tools to gather the remaining embers at the center of the firebox.
c) Activate the Activator by pushing it in.
d) Once the embers begin to glow red, add the new load of wood in the firebox.
e) Keep the door of the FUSION slightly unlatched until you see a flame in the firebox. Never leave the
FUSION door unlatched without constant supervision.
f) Completely latch the FUSION door.
4.5.2 FUSION 24
a) Crack the door open and wait a few moments before opening the door completely.
b) Use your fireplace tools to gather the remaining embers at the center of the firebox.
c) Position the Burn Rate Selector to the desired setting and activate the Activator by pushing it in.
d) Once the embers begin to glow red, add the new load of wood in the firebox.
a. Place the first row of wood (2 pieces for maximum burn rate or 3 pieces for minimum/medium
burn rate) in the north-south directionon the center of the hearth, with an adequate space between
the logs.
b. Place the second row of wood (3 pieces), in the east-west direction with an adequate space
between the logs.