SUPREME 18FN User manual

FUSION 18
Owner’s Manual
Model Number: 18FN
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: February 2018
IMPORTANT: Keep the owner’s manual for future use.

ii
Table of Contents
1SAFETY.....................................................................................................................................................4
2COMPONENTS..........................................................................................................................................5
2.1 Overall Dimensions .............................................................................................................................5
2.2 Specifications......................................................................................................................................6
2.3 Combustion Air Control .......................................................................................................................6
2.4 Cold Hand Key....................................................................................................................................7
2.5 Chimney Sweeping Cap......................................................................................................................7
2.6 Door....................................................................................................................................................7
2.7 Blowers ...............................................................................................................................................7
2.8 Surround .............................................................................................................................................8
2.9 Adjustable Circulating Chamber ..........................................................................................................8
2.10 Adjustable Legs...................................................................................................................................8
2.11 Liner Adaptor.......................................................................................................................................8
2.12 Metal Tag............................................................................................................................................9
2.13 Serial Number .....................................................................................................................................9
3INSTALLATION INSTRUCTIONS ............................................................................................................10
3.1 Preparing the Firebox for Installation.................................................................................................11
3.2 Liner Installation................................................................................................................................11
3.3 Adjustable Circulating Chamber ........................................................................................................11
3.3.1 Assembly....................................................................................................................................11
3.3.2 Installation..................................................................................................................................11
3.4 Liner Adaptor Installation...................................................................................................................12
3.5 Firebox Installation............................................................................................................................12
3.6 Power Cord Side Reversal ................................................................................................................12
3.7 Surround Installation..........................................................................................................................13
3.8Clearances to Combustibles..............................................................................................................14
4OPERATION INSTRUCTIONS.................................................................................................................15
4.1 Fuel...................................................................................................................................................15
4.2 First Fires..........................................................................................................................................15

iii
4.3 Operating the Combustion Air Control.............................................................................................166
4.4 Starting a Fire....................................................................................................................................16
4.5 Adding a New Load of Wood.............................................................................................................17
4.6 Fan Operation ...................................................................................................................................17
4.7 Barbecue Grill....................................................................................................................................18
5TROUBLESHOOTING .............................................................................................................................19
5.1 Backdraft / Smoking ..........................................................................................................................19
5.2 Over Firing ........................................................................................................................................19
6MAINTENANCE .......................................................................................................................................20
6.1 Disposal of Ashes..............................................................................................................................20
6.2 Chimney Maintenance.......................................................................................................................20
6.3 Cleaning of Glass..............................................................................................................................21
6.4 Replacement of Door Gasket ............................................................................................................21
6.5 Replacement of Glass.......................................................................................................................21
6.6 Door Latch Lubrication ......................................................................................................................22
6.7 Paint..................................................................................................................................................22
6.8 Removal of Firebox...........................................................................................................................22
6.9 Replacement Parts............................................................................................................................23
7WARRANTY.............................................................................................................................................24

4
WARRANTY REGISTRATION
Please register your SUPREME product online at http://www.supremem.com/registration.php to ensure
full warranty coverage. Proof of purchase is required for all warranty claims.
1 SAFETY
SUPREME FIREPLACES INC. congratulates you on purchasing a FUSION 18 wood burning fireplace insert.
This insert complies with the ULC S628 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.
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.”

5
2 COMPONENTS
2.1 Overall Dimensions
Figure 1: FUSION 18 Firebox
Figure 2: Dimensions of FUSION 18 Firebox
Figure 4: Dimensions of FUSION 18 with Circulating Chamber
Figure 3: Dimensions of FUSION 18

6
Figure 5: Combustion Air Control Levers
2.2 Specifications
Appliance Type:
Adjustable Burn Rate Wood Heater –Non-Catalytic
Fuel Type:
Dry Cordwood
Maximum Log Length:
18 in (47 cm)
Burn Time1:
6 to 8 hrs
Firebox Volume:
1.85 ft3 (0.053 m3)
Heating Area:
500 to 1,800 ft2(45 to 170 m2)
Average Particulate Emissions Rate2:
1.90 gm/hr
Average CO Emissions Rate3:
103.6 g/hr
EPA Protocol:
Method 28R, ASTM2780-10, and ASTM2515-11
Efficiency (Crib Wood):
HHV4: 66.9% | LHV5:
Heat Output (Crib Wood):
10,958 to 22,421 BTU/hr (3,211 to 6,571 W)
Optimum Efficiency:
75%
Optimum Heat Output:
60,000 BTU (17.6 kWh)
Efficiency Protocol:
CSA B415.1-10
2.3 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 5). The combustion air control of the FUSION 18 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. For optimum efficiency, it is recommended to
operate the unit with the Burn Rate Selector set at the low to
medium/low position.
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 2.4) to adjust the Combustion Air Control.
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.

7
2.4 Cold Hand Key
The Cold Hand Key (Figure 6) is an accessory that comes standard with
the FUSION 18 insert. The Cold Hand Key is a tool used to manipulate the
Combustion Air Control Levers when it is hot.
2.5 Chimney Sweeping Cap
The chimney sweeping cap (Figure 7) found at the baffle of the FUSION 18
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.
2.6 Door
The FUSION 18 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 18 must remain closed at all times during operation.
2.7 Blowers
The FUSION 18 wood burning fireplace insert is equipped with two AC centrifugal compact fans on either side
of the surround (electrical rating: 115V, 60Hz, and 19W).
CAUTION: Make certain that the fireplace in not in operation and the blowers are unplugged before
accessing the electrical wiring.
Plug the power cord into an 115V grounded outlet for protection against a power surge. The blowers will turn
on and turn off automatically during the operation of the unit. As the temperature of the fireplace insert
increases and the heat activated sensor reaches 95°F, the fans will turn on. Note that the average time it takes
for the fans to activate is between 30 to 45 minutes after starting a fire. The fans will turn off once the fireplace
has cooled down and the heat activated sensor reaches 85°F. The speed of the fans can be adjusted with an
optional grounded variable speed control plugged into the nearest outlet. It is safe to operate the FUSION 18 in
the event of a power failure (fans not powered).
Figure 6: Cold Hand Key
Figure 7: Chimney Sweeping Cap

8
Figure 9: Circulating Chamber
Figure 11: Liner Adaptor
2.8 Surround
The FUSION 18 wood burning insert is available in three different sizes.
Figure 8: Surround Size Options - Small, Medium, and Large (Left to Right)
NOTE: SUPREME FIREPLACES INC. reserves the right to alter the dimensions of the surrounds without prior
notice.
2.9 Adjustable Circulating Chamber
The adjustable circulating chamber (Patent: US 9,488,375 B2) is a standard
component of the FUSION 18 insert (see Figure 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”, the front height is
adjustable from 21.75” to 26.75” (with the rear height fixed at the minimum
21.75”), and 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 3.4 for detailed instructions.
2.10 Adjustable Legs
The FUSION 18 insert is supplied with three adjustable legs (see Figure 10) in the bottom of its firebox to allow
adjustment of the height if the surround is not flushed with the wall of the masonry fireplace.
2.11 Liner Adaptor
The FUSION 18 Liner Adaptor is a component that comes with the FUSION 18 and is required to connect a 5”
stainless steel liner to the FUSION 18 insert.
Figure 10: Adjustable Leg

9
2.12 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 18 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.
2.13 Serial Number
The certification label contains important information regarding the installation and operation of the FUSON 18
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 12).
Figure 12: Location of Serial Number

10
3 INSTALLATION INSTRUCTIONS
The masonry fireplace is to 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 18 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 or listed factory-built fireplace chimney with a direct flue connector into the first chimney liner
section. 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 sure that the fireplace and chimney are 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 1, Figure 13 and Figure 14 for minimum opening dimensions of the masonry fireplace.
NOTE: The non-combustible hearth must extend a minimum of 20” (508mm) from the front and 8” (203mm) on
each side of the masonry fireplace opening and must be a minimum of 44” long.
Table 1: Minimum Opening Dimensions
Width (Front)
28’’ (711 mm)
Width (Back)
18’’ (457 mm)
Height
21.75’’ (553 mm)
Depth
19’’ (483 mm)
Figure 13: Minimum Opening Dimensions –Front View
Figure 14: Minimum Opening Dimensions –Side View