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NEVER LEAVE HEATER UNATTENDED WHILE BURNING OR WHILE 

CONNECTED TO A POWER SOURCE

Diesel Fired Radiant Heater User’s Manual

© 2020, Lavorwash

2

Safety Information

The products described in this manual are 

Paraffin/Diesel direct-fired, forced air heaters. 

Paraffin/Diesel forced air heaters are primarily 

intended for use 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% combustion 

efficiency, but does produce small amounts of 

carbon monoxide.

Carbon monoxide is toxic. Humans can tolerate 

only small amounts of carbon monoxide and so 

precautions should be taken to provide proper 

ventilation. Failure to provide proper ventilation 

in accordance with the instructions in this manual 

can result in death.
People with breathing problems should consult a 

physician before using this heater. 
Early signs of carbon monoxide poisoning 

resemble the flu. Symptoms of improper 

ventilation / carbon monoxide poisoning are:

Headache • Dizziness • Nausea 

• 

Dry Mouth 

Sore Throat 

 Burning of Nose and Eyes

If you experience any of these symptoms: 

GET FRESH AIR AT ONCE! 

Have your heater 

serviced and check for proper ventilation. Some 

people are more affected by carbon monoxide 

than others. These include: pregnant women, 

those with heart or lung problems, anemia or those 

under the influence of alcohol or at high altitudes. 

Use this heater in only well ventilated areas! 

Provide at least a three square foot  

(2,800 cm

2

) opening of outside air for every 

29 kW / Hr heater rating. Refer to “Ventilation” 

on page 7 for further instructions. 

ALWAYS use only the electrical power (voltage and 

frequency) specified on the model plate of the heater.
ALWAYS use only properly grounded socket and 

properly rated extension cables.
ALWAYS unplug the heater when not in use.
ALWAYS install the heater so that it is not directly 

exposed to water spray, rain, dripping water, or wind.
If the supply cord is damaged, it must be 

replaced by a special cord or assemble available 

from the manufacturer, its service agent or 

similarly qualified persons in order to avoid a 

hazard

NEVER use fuels such as gasoline, benzine, paint 

thinners or other oil compounds in this heater.
NEVER refill the heater’s fuel tank while the 

heater is operating or still hot. This heater is 

EXTREMELY HOT while in operation.
NEVER block air inlet (rear) or air outlet (front).
NEVER use duct work in front or rear of heater.
NEVER move or handle heater while still hot.
NEVER transport heater with fuel in tank.
NEVER use with an external fuel tank.

Keep all combustible materials away from this heater. 

Minimum Clearance From Combustibles

PT70-SS Plus

PT-125 SS

Top

1.2 m

1.2 m

Sides

1.2 m

1.2 m

Front

2.4 m

2.4 m

ALWAYS locate heater on a stable and level surface. 
If your heater is equipped with a thermostat, 

once it is plugged in, it can start at anytime in 

accordance with the thermostat setting. 

RISK OF INDOOR AIR 

POLLUTION!

WARNING

CARBON MONOXIDE POISONING 

MAY LEAD TO DEATH!

WARNING

RISK OF BURNS, FIRE AND 

EXPLOSION!

WARNING

RISK OF ELECTRIC SHOCK!

WARNING

CAUTION! HOT WHILE IN 

OPERATION. DO NOT TOUCH. 

KEEP CHILDREN, ANIMALS, CLOTHING AND 

COMBUSTIBLES AWAY FROM HEATER. 

WARNING

Summary of Contents for PT-125 SS

Page 1: ...RESIDENTIAL LIVING AREAS OR IN ENCLOSED SPACES WITHOUT ADEQUATE VENTILATION TO BE USED IN WELL VENTILATED COMMERCIAL INDUSTRIAL OCCUPANCIES This is an unvented portable heater that uses air Oxygen fr...

Page 2: ...NG INSTRUCTIONS Failure to comply with the precautions and instructions provided with this heater can result in death serious bodily injury property loss or damage from the hazards of fire soot produc...

Page 3: ...are foot 2 800 cm2 opening of outside air for every 29 kW Hr heater rating Refer to Ventilation on page 7 for further instructions ALWAYS use only the electrical power voltage and frequency specified...

Page 4: ...t Knob Can Tilt Up To 15 Wheel Drain Bolt Wheel Frame Fuel Cap Handle Specifications Model PT70 SS Plus PT 125 SS Rating kW Hr 20 5 36 6 Fuel Consumption L Hr 1 9 3 2 Fuel Tank Capacity L 15 1 53 Max...

Page 5: ...rews 2 Carry Handle Assembly 1 Align holes in the upper housing with the 2 holes in the handle as shown in Figure 3 2 Insert screws and tighten firmly Tools Needed Phillips Head Screw Driver Figure 3...

Page 6: ...m the shipping carton Tools Needed Phillips Head Screw Driver 8 mm open end wrench Assembly Instructions Tip Be sure to remove the axle from the side of the Styrofoam packaging Tip Use a power screwdr...

Page 7: ...ain structure on wheel frame and fasten with long screws provided 3 Attach safety guard to front of heater with screws provided 4 Attach Radiant Visors to the top and bottom rear of the Radiant Cone A...

Page 8: ...ociated 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 Car...

Page 9: ...n the PC board If the 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...

Page 10: ...inal packaging and keep user s manual in an easily accessible place Service DO NOT TAMPER WITH THE UNIT HAVE AN EXPERIENCED SERVICEMAN MAKE ANY NECESSARY ADJUSTMENT OR REPAIRS We suggest following a m...

Page 11: ...y to soak nozzle in clean paraffin or diesel to help loosen any particles See Figure 13 PHOTOCELL The photocell should be cleaned at least once per heating season or more depending on conditions Use a...

Page 12: ...ble place Service DO NOT TAMPER WITH THE UNIT HAVE AN EXPERIENCED SERVICEMAN MAKE ANY NECESSARY ADJUSTMENT OR REPAIRS We suggest following a maintenance schedule as follows FUEL FUEL TANK Flush tank e...

Page 13: ...Maintenance PT 125 SS Service Continued PHOTOCELL The photocell should be cleaned at least once per heating season or more depending on conditions Use a cotton swab and water or alcohol to clean the l...

Page 14: ...ith clean fresh paraf fin diesel 6 Inspect all electrical connections See Wiring Diagrams Page 14 7 Re attach Transformer wires to Spark Plug 8 Replace Transformer Fan does not operate when heat er is...

Page 15: ...R UNATTENDED WHILE BURNING OR WHILE CONNECTED TO A POWER SOURCE Diesel Fired Radiant Heater User s Manual 2020 Lavorwash 14 Wiring Diagrams AC230V 50Hz 250V 3 15A PT70 SS Plus PT 125 SS Figure 23 Figu...

Page 16: ...23 0285 01 02 75 00702059 3 Fuel Pipe Assembly 75 023 0345 75 024 0725 4 Fuel Hose 75 024 0700 75 024 0700 5 Fuel Gauge 75 022 0210 01 04 75 007010071 6 Fuel cap 70 006 0135 70 006 0140 7 Cooling Fan...

Page 17: ...00 01 04 75 007010078 29 Burner Blade 75 036 0120 01 01 75 007010700 30 Nozzle 75 036 0435 01 01 75 007020215 31 Nipple 75 040 0610 01 01 75 007010203 32 Diffusion cap 75 036 0500 42 300 0010 33 Blowe...

Page 18: ...TED TO A POWER SOURCE Diesel Fired Radiant Heater User s Manual 2020 Lavorwash Exploded View PT 125 SS 17 ALWAYS contact the manufacturer of this heater before replacing any parts other than those spe...

Page 19: ...72 312520120 22 Back Cover 72 013 0110 01 02 72 012510061 23 Panel sub PCB 72 014 0105 01 04 72 012510107 24 Blower Motor 72 045 0100 01 04 72 312520116 24 internal parts Blower Housing Blower Wheel A...

Page 20: ...______________________ Serial ________________________________ Date of Purchase ________________________ Locating Your Serial Number Your serial number can be found on a blue label on the left side co...

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