Sunfire SF120 Installation and operating instructions

4109 Capital Circle Drive | Janesville WI, 53546
sunfireheaters.com | [phone]
Operation & Service
Manual

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Safety Information:
Before you begin...
SAFETY, CODES, AND REGULATIONS:
Thank you for purchasing a SunFire product. SunFire heaters are designed and tested for
safe, reliable, long-term operation, though proper operation, fuel quality control, and regular
maintenance are required. Please read and understand this manual completely before attempting
to operate or service the product. Keep and maintain this instruction manual.
This manual provides instructions necessary to safely use the SunFire Radiant Heater. MISUSE
OF THIS PRODUCT MAY RESULT IN SERIOUS OR FATAL INJURIES DUE TO BURNS, FIRE,
EXPLOSION, ELECTRICAL SHOCK, OR ASPHYXIATION FROM CARBON MONOXIDE.
If you have any questions, please go to www.sunfireheaters.com or call 1 [phone] for
support.
CONVENTIONS USED IN THIS MANUAL:
For your safety, this manual uses the following definitions and signal words to
identify hazards:
-Indicates a hazardous situation which, if not avoided, will result in
death or serious injury. This signal word is limited to the most extreme
situations.
- Indicates a hazardous situation which, if not avoided, could result in
death or serious injury.
- Indicates a hazardous situation which, if not avoided, may result in
minor or moderate injury. It may also be used to alert against unsafe
practices.
- Indicates an unsafe practice which, if not avoided, may result in
product or property damage. Also used for general alerts.
NOTICE
!

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Safety Information:
Ceramic fiber material
This appliance may contain ceramic fiber and/or fiberglass materials. Ceramic fiber materials, such as
chamber liners, may contain carcinogenic particles (cristobalites) after exposure to heat. Airborne particles
from fiberglass or ceramic fiber components have been listed as potentially carcinogenic by the State of
California.
Take the following precautions when removing, replacing and handling these items:
Avoid breathing dust and avoid contact with skin or eyes. Wear long-sleeved, loose-fitting clothing, gloves,
and eye protection.
Use a NIOSH N95 certified respirator. This respirator meets requirements for protection from cristobalites.
Actual job requirements or NIOSH regulations may require other or additional protection. For information,
refer to the NIOSH website, http://www.cdc.gov/niosh/homepage.html.
To prevent airborne dust, thoroughly wet ceramic fiber with water before handling. Place ceramic fiber
materials in a plastic bag and seal it for disposal. Avoid blowing, tearing, sawing, or otherwise causing
fiberglass or ceramic fiber materials to become airborne. If such operations are necessary, wear extra
protection to prevent yourself or others from breathing the dust. Wash work clothes separately from other
laundry. Rinse clothes washer thoroughly afterwards to prevent contamination of other clothing.
NIOSH First aid procedures: Eye exposure — irrigate immediately; Inhalation — fresh air.
USE ON LEVEL, NON-COMBUSTIBLE FLOORING ONLY
Failure to comply with specified requirements and minimum clearances can be dangerous
and may become a fire hazard. Additional clearances may be necessary for accessibility or
to comply with local codes.
This appliance is equipped with a three-prong grounding plug for your protection against
electric shock hazard and should be plugged into a grounded, three-prong power supply
capable of supplying proper voltage and amperage.
Provide a minimum of 2.55 square feet (0.27 square meters) of ventilation to the outdoors into the
operation area at the unit-height level. The first symptoms of carbon monoxide asphyxiation are
similar to that of the flu: headaches, dizziness, and/or nausea. These symptoms could be caused
by a malfunction of the Radiant Heater. In this case go outside immediately. Have the Radiant
Heater repaired before continuing operation of the heater. Some people are more affected by
the effects of carbon monoxide than others, especially pregnant women, those who suffer from
heart or lung disease, or people with anemia; also those who have consumed alcoholic beverages
and those who are at high altitudes. Be sure to read and understand all of the warnings. Save this
manual for future reference: it will provide you with instructions to operate your radiant heater
safely and correctly.
Carbon Monoxide (CO) is a poisonous gas that cannot be seen nor smelled and can result
in fatality within minutes. Not for use in residential living areas. Only use this product in a
well-ventilated area.

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...in Canada:
NO GASOLINE!
This product is designed for use with Diesel, No.2 heating oil, or kerosene ONLY!
• Installation of the unit shall be in accordance with the regulations of the authorities having
jurisdiction. Refer to CSA standard 39-1962: Installation Code for Oil-Burning Equipment, for
Recommended Installation Practice.
• To avoid added risk of fire or explosion, never use gasoline, crankcase drainings, naphtha,
paint thinners, alcohol, or any other unapproved fuels.
• Never use the heater in areas where aerosol cans, gasoline, paint thinner, or other highly
flammable materials are stored.
• Visually inspect the heater before each use. Never use a heater that has been damaged,
broken, or modified from manufacturer’s specifications.
• Before filling the fuel tank, extinguish all nearby flames, including the radiant heater and wait
for the heater to cool down.
• While filling the tank inspect the fuel lines and their junctions to check for fuel losses. Any losses
or leaks must be repaired before resuming operation of the radiant heater.
• Fuel should always be stored in compliance with safety regulations.
• When you move or store the heater, maintain it in a level position in order to avoid fuel loss or
drain the fuel into an appropriate receptacle.
• Keep children and animals away from the heater.
• Disconnect the heater from electrical power when it is not in use and has completed a post-
purge cycle after power button has been placed in the OFF position.
• When it is controlled by another device (like a thermostat or a timer), the heater could turn
itself on at any time. Please be aware of this and observe all safety precautions.
• Never operate the heater in unoccupied or unattended areas.
• Do not block vents or openings on any part of the heater at any time.
• When the heater is in use and connected to the power supply, it should never be moved,
handled, or refilled and no maintenance should be performed on it.
WARNING

!
⛽

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MANUFACTURED BY ROCK ENERGY SYSTEMS, LLC
JANESVILLE, WI
GOT QUESTIONS? 1-855-251-1649
SUNFIREHEATERS.COM
LISTED FUEL TYPES: DIESEL/#2 FUEL OIL/KEROSENE
FUEL TANK CAPACITY: 14.2 GALLONS
GPH RATING: .85 (DIESEL/#2 FUEL OIL) .78 (KEROSENE)
MAX OUTLET TEMP: 1,600°F
ELECTRICAL RATING: 120V, 1.2A, 60HZ (MAX 15A CIRCUIT BREAKER)
WARNING: THIS APPLIANCE IS EQUIPPED WITH A THREE-PRONG
(GROUNDING) PLUG FOR YOUR PROTECTION AGAINST
ELECTRICAL SHOCK HAZARD AND SHOULD BE PLUGGED
DIRECTLY INTO A GROUNDED THREE-PRONG OUTLET.
MINIMUM REQUIRED CLEARANCES
FROM COMBUSTIBLE PRODUCTS:
FRONT: 84” SIDES: 36” BACK: N/A
NON-COMBUSTIBLE FLOORING ONLY
MP5162
OIL-BURNING
AIR HEATER
MADE IN USA
1. Never use gasoline or waste oil.
2. Never push RESET button more than twice. If heater doesn’t start,
follow troubleshooting in manual.
3. Never use in the presence of flammable vapors or dust.
4. Never unplug unit before allowing unit to cycle through the 5 minute
post-purge cool down period after turning unit off.
5. Do not touch the front or top of heater until completely cool.
5. Do not touch the front or top of heater until completely cool.
6. Risk of shock: Unplug unit before removing burner cover.
To be used only in well-ventilated commercial-industrial occupancies.
Not for use where exposed to the weather.
7. Never move heater while running.
8. Do not start heater after excess fuel has accumulated in the front
dome chamber. Allow time to dry.
9. Do not operate heater unattended.
9. Do not operate heater unattended.
10. Keep heater a minimum distance of 7 feet away in the front and
3 feet on both left and right sides from flammable and combustible
materials.
READ MANUAL BEFORE USE
WARNING
1. Ne jamais utiliser d’essence ou d’huile usée.
2. Ne jamais appuyer plus de deux fois sur le bouton RESET. Si l’appareil
de chauffage ne démarre pas, suivre les instructions de dépannage dans
le manuel.
3. Ne jamais utiliser en présence de vapeurs ou de poussières inflammables.
4. Ne jamais débrancher l’appareil avant de le laisser passer par le cycle de
refroidissement post-purge de 5 minutes après l’avoir éteint.
refroidissement post-purge de 5 minutes après l’avoir éteint.
5. Ne pas toucher l’avant ou le dessus de l’appareil de chauffage avant qu’il ait
complètement refroidi.
6. Risque de décharge : Débrancher l’appareil avant de retirer le couvercle
du brûleur. Utiliser uniquement dans des locaux commerciaux et industriels bien
ventilés. Ne pas utiliser dans des lieux exposés aux intempéries.
7. Ne jamais déplacer l’appareil de chauffage pendant qu’il fonctionne.
8. Ne pas démarrer l’appareil de chauffage après que l’excès de carburant s’est
8. Ne pas démarrer l’appareil de chauffage après que l’excès de carburant s’est
accumulé dans la chambre du dôme avant. Lui laisser le temps de sécher.
9. Ne pas faire fonctionner l’appareil de chauffage sans surveillance.
10. Garder l’appareil de chauffage à une distance minimale de 2 mètres à l’avant et de
90 cm de chaque côté de matériaux inflammables et combustibles.
Chaud pendant le fonctionnement. Ne pas
toucher. Tenir les enfants, les vêtements et les
combustibles à l’écart.
MISE EN GARDE:
Hot while in operation. Do not touch. Keep children,
clothing, and combustibles away.
CAUTION:
LIRE LE MANUEL AVANT UTILISATION
AVERTISSEMENT
Safety Labels:

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Table of Contents
Safety Information: 1
Safety, Codes, and Regulations: 1
Conventions Used in this Manual: 1
Safety Labels: 5
Key Features: 9
Specifications: 10
Fuel Requirement: 10
Fuel Input: 10
Fuel Tank Capacity: 10
Electrical Requirement: 10
Operating Temperature Range*: 10
Minimum Clearance to Combustible Material: 10
Weight: 10
Dimensions: 10
Getting Started: 11
Identifying Terms: 11
Package Contents: 12
Assembly: 13
Normal Operation: 17
Controls: 18
Operation Procedure: 18
Operation in Sub-Freezing Temperatures: 19
Optional Accessories: 19
Fuel-Filter Heating Band: 19
Thermostatic Control: 19
Maintenance & Service: 20
Filter & Fuel Tank: 20
Burner Service: 21
General Maintenance: 23
Flame Adjustment: 24
Wiring Diagram (High Voltage): 25
Wiring Diagram (Low Voltage): 26
Troubleshooting: 27
Warranty & Legal Information: 28
WARRANTY INFORMATION 28
PRODUCT REGISTRATION 28
TRADEMARKS 28
COPYRIGHT 28

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SUNFIRE: The most advanced, most durable portable multifuel radiant heater made in America
TM
LOW NOISE ODORLESS
ZERO CO EMISSIONS ZERO BREEZE/DUST
Turn up the heat without
having to turn up the
volume
99%+ eciency for
carbon-monoxide-free
operation
More heat
Less noxious fumes
Radiant heat warms
without kicking up a storm
SunFire Radiant Heaters are easy to setup and maintain...
...so you can sit back and soak up the glow... season after season.
Key Features:
WARNING: DO NOT USE GASOLINE

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min. 3’
(0.91 m)
min. 3’
(0.91 m)
min. 7’
(2.13 m)
39”
99 cm
min. 7’
(2.13 m)
For use on non-
combustible
flooring or with
heat-rejecting
mat
28.6”
72.5 cm
33.2”
84.3 cm
MINIMUM CLEARANCE TO COMBUSTIBLE MATERIAL:
FUEL REQUIREMENT: Diesel, No. 2 Heating Oil, Kerosene
FUEL INPUT: 0.85 gal/h Diesel; 0.78 gal/h kerosene
FUEL TANK CAPACITY: 14.2 U.S. gallons (53.8 L)
ELECTRICAL REQUIREMENT: 1.2A, 120V / 60Hz 1-Phase
WEIGHT:
Empty of fuel: 125lbs (57kg); Fuel tank full: 220lbs (100kg)
DIMENSIONS:
L: 33.2” (84.3cm) W: 28.6” (72.5cm) H: 33.4” (84.8cm)
OPERATING TEMPERATURE RANGE*: -20°F (-28.9°C) to 80°F (26.7°C)
Front: 84” (213.36 cm) Left/Right Side: 36” (91.4 cm)
Back: N/A Below: For use on non-combustible flooring
or with heat-rejecting mat
*Fuel-temperature considerations are necessary when operating in sub-freezing temperatures. See
product manual sections NORMAL OPERATION and OPTIONAL ACCESSORIES for more information.
33.4”
84.8 cm
Specifications:

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1. Power Cord
2. Fuel Tank
3. Fill Cap
4. Fuel Gauge
5. Fuel Pickup Hose
6. Fuel Return Hose
7. Fuel Filter Element
8. Fuel Filter Head
9. Burner
10. Burner Cover
11. PRIME Switch
12. Controls (See Normal
Operation section)
13. Lower Support Frame
14. Upper Support Frame
15. Lifting Bracket (optional)
16. Wheels x2
17. Feet x2
18. Adjustable Handle
19. Handle-Position Locking Pin
20. Heat Shield
21. Dome Visor
22. Dome Guard
23. Dome Face
24. Tilt Adjustment Knob x2
Please familiarize yourself with the parts of the heater as they will be referred to throughout this manual:
IDENTIFYING TERMS:
1
2
3
4
5
5
6
6
7
8
9
10
11
12
13
13
14
15
16
16
17
18
19
20
20
21
21
22
22
23
24
24
Getting Started:

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1. Heater Assembly
2. Lower Support Frame Leg Assembly
3. Lower Support Frame Axle Assembly
4. Dome Guard
5. Dome Visor
6. Optional Lifting Bracket
7. Optional Lifting Bracket Retainer x2
8. Leveling Foot x2
9. Foot-Adjustment Wrench
10. Wheel x2
11. Axle Cap x2
12. 1/4”-20 tpi x 1-1/2” Frame-Mount Bolts x4 (not
shown)
13. 1/4”-20 tpi x 3/4” Lifting-Bracket Bolts x2 (not
shown)
14. 1/4” Flat Washer x6 (not shown)
15. 1/4” Locking Washer x6 (not shown)
16. 1/4” Nut x6 (not shown)
17. #10 x 1/2” Visor Screw x6 (not shown)
18. Spare Parts (not shown)
19. Thermostat-connection Whip (not shown)
20. Operation & Service Manual (this booklet)
PACKAGE CONTENTS:
Please review the package contents and ensure that all materials are present. If you find something is missing,
contact SunFire for assistance. DO NOT RETURN THE HEATER TO THE STORE where it was purchased.
1.
2. 3.
4. 5. 6.
11.
x2
9. 10.
x2
8.
x2
Not to scale
7.
x2
Getting Started:

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ASSEMBLY:
When unpacking the unit, some assembly is required before initial use. This process can be completed individually,
but a helper may be useful for some steps. Do not add fuel to the heater until the assembly process is complete.
The following tools will be used in the assembly process:
• 7/16” Wrench
• 1/2” Wrench
• Mallet / Hammer
• 5/16” Powered Driver
TO ASSEMBLE THE UNIT:
1. Unpack the heater assembly onto a soft surface, like a rug or mat (or use a portion of the packaging),
with room to work. Then, roll the heater sideways to invert it onto the work area, with the heater laying
on its top. Do not lay the heater on the dome face at any time. Using a 7/16” wrench and a 1/2” wrench,
locate and remove the two (2) nuts, locking washers, and spacers (not shown) from the bolts attaching the
upper frame to the tank on the rear of the unit.
INVERT THE UNIT
ATTACH LEG ASSEMBLY
2. Discard the spacers and reuse the bolts, washers, locking washers, and nuts, plus two (2) each of the 1/4”-
20tpi x 1-1/2” frame-mount bolts and associated washers and nut included in the packaging to affix the
leg assembly to the unit. Observe the correct arrangement of the fasteners and ensure the fasteners are
securely tightened before proceeding.
FASTENER ARRANGEMENT
Bolt
Washer
Locking Washer
Nut

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4. Similarly to the leg assembly, locate and remove the nuts, locking washers, and spacers from the bolts
attaching the upper frame to the tank on the front of the unit. Discard the spacers and reuse the bolts,
washers, locking washers, and nuts, plus two (2) each of the 1/4”-20tpi x 1-1/2” frame-mount bolts and
associated washers and nut included in the packaging to affix the foot assembly to the unit using the same
fastener arrangement shown in the previous step. Ensure the fasteners are securely tightened before
proceeding.
ATTACH AXLE ASSEMBLY ATTACH WHEELS
TO ASSEMBLE THE UNIT (CONT.):
Getting Started:
5. After attaching the axle frame to the heater assembly, feed the raised hub of the wheels onto the axle
(flatter side of the wheels facing away from the fuel tank) and use a mallet or hammer to install the cap
nuts provided in the packaging to the ends of the axle, retaining the wheels.
3. When attaching the leg assembly to the heater, locate the two (2) leveling feet included in the packaging
and screw them into the threads in the ends of the foot assembly frame.
ATTACH FEET

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7. Use a 7/16” wrench or driver to remove the bolts at one side of the dome face and use them
to loosely attach the dome guard to the front of the unit. Repeat this process to attach the other side of
the guard, then tighten the fasteners on both sides.
TO ASSEMBLE THE UNIT (CONT.):
ATTACH GUARD: DETAIL ATTACH GUARD: LOCATIONS
ADJUST FEETUPRIGHT THE HEATER
6. Carefully, right the unit onto its lower support frame and wheels by rolling it sideways. Do not lay the
heater on the dome face at any time. Check the stability of the heater as it sits on a level floor. If the
heater rocks or is otherwise unstable, rotate the leveling feet to stabilize the heater. When the heater is
stable, use the angled wrench included in the packaging to tighten the locking nut of the leveling feet to
the foot-assembly frame, securing the leveling-feet adjustment setting.

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TO ASSEMBLE THE UNIT (CONT.):
9. [OPTIONAL] Assemble the lifting bracket and use a 7/16” wrench and a 1/2” wrench to secure it with
the bolt, washers, locking washers, and nuts provided in the packaging.
The unit is now ready for normal operation.
ASSEMBLE LIFTING BRACKET ATTACH LIFTING BRACKET
Getting Started:
DO NOT operate the unit without the the dome guard and visor in place. These are important
safety components and are required.
8. With a 5/16” powered driver, use the visor screws provided to affix the dome visor to the top of the
dome face. Start at one end of the visor and move along the length of the visor to shape it to the
dome. Do not tighten the screws completely until all fasteners have been started, then go back and finish
securing all screws.
ATTACH VISOR

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Use the knobs on the sides of the unit to adjust the tilt angle of the dome face. Tighten the knobs when
adjustment is complete. Return the tilt angle to it’s non-inclined position and tighten the
adjustment knobs for storage or transport of the unit.
ADJUST TILT ANGLE
This section will cover normal orientation and operation of the SunFire SF-120.
TO ADJUST THE TILT ANGLE:
The unit will ship with the handle secured in place by a hook and loop retaining strap (not shown). This should
be left on the frame and reused when transporting the heater in the future. To raise the handle position, undo
the retaining strap. Then, lift the handle until the spring-loaded pin engages (~90°), locking it in the raised
position.
LOWER THE HANDLE
RAISE THE HANDLE
When the heater is in use and connected to the power supply, it should never be moved, handled,
or refilled and no maintenance should be performed on it. Allow the unit to cool completely before
moving.
TO OPERATE THE HANDLE:
Reuse the retaining strap to secure the handle in the lowered position when transporting
the heater.
To lower the handle position, pull the ring of the pin on the hinge to release and lower the handle.
Normal Operation:

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CONTROLS:
OPERATION PROCEDURE:
The unit’s controls are labeled and located on the burner cover.
1. Add Diesel, No.2 heating oil, or kerosene to the fuel tank, if a need is indicated by the fuel gauge.
Approved fuels can be mixed at any ratio.
2. Plug the unit’s power cord into a grounded extension cord capable of supplying proper amperage and
position the heater in a well ventilated area that provides safe clearances.
3. Press and hold the PRIME switch (located on the back side of the burner) until the fuel system is filled with
fuel and purged of air (pump becomes quieter, fuel begins to flow through the return line).
4. Toggle the control switch to the ON position.
5. The blower will begin to operate and run for 15 seconds prior to ignition (pre-purge).
6. After the burner ignites, the GREEN LIGHT on the control panel will illuminate, indicating that the burner
is on and the flame sensor can see the flame.
7. If the RED LIGHT on the control panel is illuminated, the unit must be reset (by pressing the RESET button)
before resuming operation. Do not reset the unit more than two (2) times without troubleshooting (see
Troubleshooting section) the root cause of the issue.
8. When shutting down the heater, turn power switch to the OFF position but DO NOT UNPLUG THE HEATER.
Allow the burner to complete the post-purge cycle (5 minutes) before disconnecting power.
Allow the heater to complete its post-purge of heat and fuel vapors to reduce the risk of a fire
hazard or damage to the unit.
ON/OFF RESET
Turn heater on. Heater will fire within 15 seconds.
If heater fails to fire, press reset button for 1 second
and restart.
Allumer le chauage. Le chauage se déclenchera
dans les 15 secondes.
Si le chauage ne se déclenche pas, appuyez sur
le bouton de réinitialisation pendant 1 seconde et
redémarrez.
Turn heater o. Blower will continue to cool down
heater for 5 minutes.
Do not unplug unit until blower stops.
Éteignez le chauage. Le ventilateur continuera à
refroidir le chauage pendant 5 minutes.
Ne débranchez pas l’appareil tant que le
ventilateur ne s’arrête pas.
STARTUP / COMMENCEZ SHUTDOWN / FERMER
1.
2.
1.
2.
1.
2.
1.
2.
Prime fuel pump after changing fuel filter or running out of fuel.
Pompe à carburant principale après avoir changé le filtre à carburant ou manqué de carburant.
CUTTING GUIDE BLEEDING GUIDE
Do not attempt to RESET the primary control of the heater more than twice. Stop and troubleshoot
the cause of the issue. Repeated attempts to reset the unit can cause a risk of fire.
Keep the unit on a level, non-combustible surface at all times. If the unit is resting at a 25° angle or more, the
tip switch will turn the heater off and/or prevent the heater from starting.
For a new unit, the first hour of operation may produce light smoke and odor as dust and
manufacturing lubricants are cleared from the system. This should dissipate with continued
use.
Normal Operation: