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© 2017, Pinnacle Climate Technologies, Inc. 

Kerosene Radiant Heater User’s Manual 

NEVER LEAVE HEATER UNATTENDED WHILE BURNING 

OR WHILE CONNECTED TO A POWER SOURCE

Operation: 70-SS / 125-OFR

Fueling The Heater:

Kerosene

For optimal performance of this heater, it is 

strongly suggested that Kerosene be used. 

Kerosene has been refined to virtually eliminate 

contaminants, such as sulfur, which can cause 

a rotten egg odor during the operation of the 

heater. Using diesel fuel can cause excess soot 

production. Do not use Bio-Diesel as this fuel will 

damage your heater’s seals and filter.

 - CSA certified for use with K-1 kerosene, no. 1 & no. 

2 diesel, JP8/Jet A Fuel, no. 1 and no. 2 fuel oil.

- NEVER use fuel such as, benzene, alcohol, white 

glass, camp stove fuel, farm diesel, paint thinners, 

or other oil compounds in this heater. THESE ARE 

VOLATILE FUELS THAT CAN CAUSE A FIRE OR 

EXPLOSION.

- NEVER store Kerosene in the living space. 

Kerosene should be stored in a well ventilated area 

outside the living area.

 - NEVER store Kerosene in direct sunlight or near a 

source of heat.

 - NEVER use Kerosene that has been stored from 

one season to the next. Kerosene deteriorates 

over time. OLD Kerosene WILL NOT BURN 

PROPERLY IN THIS HEATER. 

NOTE: Kerosene should only be stored 

in a blue container that is clearly marked 

“Kerosene.” Never store Kerosene in a red 

container. Red is associated with gasoline.

Ventilation:

 - Risk of indoor air pollution and Carbon 

Monoxide Poisoning. Use heater only in well 

ventilated areas.

 - Refer to Safety Information on pages 1-2 for 

information about Carbon Monoxide Poisoning.

 - ALWAYS

 provide a fresh air opening in the heated 

space of at least 2,800 square centimeters  

(3 sq. ft) for each 100,00 Btu/Hr. (29 kW) of heater 

output. Provide a larger opening if more heaters 

are being used. 

Minimum Ventilation Opening Needed

70-SS

125-OFR

2.1 ft.

2

3.75 ft.

2

1,950 cm

2

3,484 cm

2

CARBON 

MONOXIDE 

POISONING MAY 

LEAD TO DEATH!

6

NEVER REFUEL 

THIS HEATER 

WHILE IT IS HOT 

OR OPERATING. FIRE OR EXPLOSION 

COULD RESULT. 

DANGER

DANGER

NEVER FILL 

THE FUEL TANK 

INDOORS. 

ALWAYS FILL THE TANK OUTDOORS. 

BE SURE THAT THE HEATER IS ON 

LEVEL GROUND WHEN FUELING, AND 

NEVER OVERFILL THE TANK.

CAUTION

DO NOT USE 

GASOLINE OR 

CRANKCASE 

DRAININGS. 

WARNING

Summary of Contents for MASTER MH-125-OFR-A

Page 1: ...Safety Information FIRE BURN INHALATION AND EXPLOSION HAZARD Keep combustibles such as building materials paper or cardboard a safe distance away from the heater as recommended by these instruc tions...

Page 2: ...for temporary heating of buildings under construction alteration or repair Direct fired means that all of the combustion products of the heater enter the heated space This appliance is rated at 98 com...

Page 3: ...use with an external fuel tank Keep all combustible materials away from this heater Minimum Clearance From Combustibles 70 SS 125 OFR Top 4 ft 125 cm 6 ft 185 cm Sides 4 ft 125 cm 6 ft 185 cm Front 8...

Page 4: ...EAVE HEATER UNATTENDED WHILE BURNING OR WHILE CONNECTED TO A POWER SOURCE 3 Features FUEL PRESSURE GAUGE BEHIND REMOVABLE COVER 70 SS 125 OFR Top Safety Guard Radiant Cone Front Safety Guard Radiant V...

Page 5: ...iver Figure 1 Figure 2 Attach the handle while still in the box for easier unpacking see Figure 2 Carry Handle 1 Black Screws 2 Step 1 Remove existing screws from shell ring on either side of heater s...

Page 6: ...attach wheels washers and nuts see Figure 6 2 Place main structure on wheel frame and fasten with long screws provided see Figure 7 3 Attach safety guard to front of heater with screws provided see F...

Page 7: ...in direct sunlight or near a source of heat NEVER use Kerosene that has been stored from one season to the next Kerosene deteriorates over time OLD Kerosene WILL NOT BURN PROPERLY IN THIS HEATER NOTE...

Page 8: ...heater fails to ignite check this fuse first and replace if necessary Also check the power source to be sure the proper voltage is being provided to the heater 1 Complete steps 1 3 above 2 Push the p...

Page 9: ...ush with water use fresh Kerosene only SPARK PLUG Clean and re gap every 600 hours of operation or replace as needed After removing the Spark Plug clean the terminals with a wire brush Re gap the term...

Page 10: ...n clean Kerosene or diesel to help loosen any particles see Figure 14a and 14b PHOTOCELL The photocell should be cleaned at least once per heating season or more depending on conditions Use a cotton s...

Page 11: ...Spark Plug 3 Clean replace Fuel Filter 4 Clean replace Nozzle 5 Rinse out fuel tank with clean fresh Kerosene diesel 6 Inspect all electrical connections See Wiring Diagrams Page 11 7 Re attach Transf...

Page 12: ...imate Technologies Inc Kerosene Radiant Heater User s Manual NEVER LEAVE HEATER UNATTENDED WHILE BURNING OR WHILE CONNECTED TO A POWER SOURCE 125 OFR 11 Wiring Diagram AC 120V 60Hz AC 250V 3 15A ELECT...

Page 13: ...es Inc Kerosene Radiant Heater User s Manual NEVER LEAVE HEATER UNATTENDED WHILE BURNING OR WHILE CONNECTED TO A POWER SOURCE Exploded View 12 25 23 24 9 21 22 20 19 26 10 7 28 6 4 3 1 2 27 8 12 13 29...

Page 14: ...0 9 Ignitor 75 025 0120 10 Main PCB Assembly 75 025 0400 11 Tip Over Sensor 75 051 0200 12 Cooling Motor Assembly 75 047 0250 13 Cooling Fan 75 047 0200 14 Handle 75 001 0060 15 Temperature Limit Swit...

Page 15: ...Kerosene Radiant Heater User s Manual NEVER LEAVE HEATER UNATTENDED WHILE BURNING OR WHILE CONNECTED TO A POWER SOURCE 1 2 4 3 5 6 7 8 9 10 11 12 13 14 15 16 17 18 24 20 22 21 30 23 26 19 34 27 29 42...

Page 16: ...p 72 027 0100 11 Main PCB and Fuse 72 025 0450 12 Tip Over Sensor 75 051 0200 13 Power Cord 72 032 0150 14 Power Switch 72 012 0120 15 Back Cover 72 013 0110 16 Panel sub PCB 72 014 0100 17 Blower Mot...

Page 17: ...If Pinnacle Climate Technnologies Inc finds the item to be in normal operating condition or not defective the item will be returned freight collect This Limited Warranty is in lieu of all other expres...

Page 18: ...1 Industrial Blvd 101 Sauk Rapids MN 56379 USA Toll Free 800 779 3267 Fax 320 251 2922 Web www masterindustrialproducts com Email info pinnacleclimate com 2017 Pinnacle Climate Technologies Inc...

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