© 2018 Pinnacle Climate Technologies, Inc.
NEVER LEAVE HEATER UNATTENDED WHILE BURNING OR  
WHILE CONNECTED TO A POWER SOURCE
2
Safety Information
The products described in this manual are 
Parafn/Diesel direct-red, forced air heaters. 
Parafn/Diesel forced air heaters are primarily 
intended for use for temporary heating of 
buildings under construction, alteration or repair. 
Direct-red means that all of the combustion 
products of the heater enter the heated space. 
This appliance is rated at 98% combustion 
efciency, 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 u. 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. 
FOR OUTDOOR USE. INDOOR USE 
PERMITTED ONLY FOR: The temporary 
heating of adequately ventilated buildings or 
structures under construction, alteration or 
repair! Provide at least 2,800 sq. cm (3 sq. ft.) 
opening of outside air for every 29 kW( 100,000 
Btu/Hr) heater rating. Refer to “Ventilation” on 
page 8 for further instructions. 
ALWAYS use only the electrical power (voltage and 
frequency) specified on the model plate of the heater.
ALWAYS use only three-prong, grounded outlet and 
extension cord. 
ALWAYS use only 14 AWG or better extension cord.
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.
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 outlet (front).
NEVER use duct work in front 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
ST-70-SS-E / ST-70T-SS-E ST-125-OFR-E
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!
CARBON MONOXIDE POISONING 
MAY LEAD TO DEATH!
RISK OF BURNS, FIRE AND 
EXPLOSION!
RISK OF ELECTRIC SHOCK!
CAUTION! HOT WHILE IN 
OPERATION. DO NOT TOUCH. 
KEEP CHILDREN, ANIMALS, CLOTHING AND 
COMBUSTIBLES AWAY FROM HEATER.