© 2021 Pinnacle Climate Technologies, Inc.
NEVER LEAVE HEATER UNATTENDED WHILE BURNING OR  
WHILE CONNECTED TO A POWER SOURCE
Operation
Fueling The Heater:
Parafn
For optimal performance of this heater, it is 
strongly suggested that Parafn be used. 
Parafn has been rened 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 or Farm “red” 
diesel as this fuel will damage your heater’s seals 
and lter.
Factory tested for use with parafn, no. 1 & 
no.2 diesel, JP8/Jet A Fuel, no. 1 and no. 2 
fuel oil.
-   NEVER use fuel such as, benzene, alcohol, white 
gas, camp stove fuel, paint thinners, or other oil 
compounds in this heater. THESE ARE VOLATILE 
FUELS THAT CAN CAUSE A FIRE OR 
EXPLOSION.
-   NEVER store Paraffin in the living space. Paraffin 
should be stored in a well ventilated area outside 
the living area.
-   NEVER store Paraffin in direct sunlight or near a 
source of heat.
-   NEVER use Paraffin that has been stored from one 
season to the next. Paraffin deteriorates over time. 
OLD Paraffin WILL NOT BURN PROPERLY IN 
THIS HEATER. 
NOTE: Parafn should only be stored in 
a blue container that is clearly marked 
“Parafn.” Never store Parafn 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 29 kW (100,000 Btu / Hr.) of 
heater output. Provide a larger opening if more 
heaters are being used. 
Minimum Ventilation Opening Needed
ST-70-SS-E / 
ST-70T-SS-E
ST-125-OFR-E
1950 cm
2
3484 cm
2
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.
NEVER REFUEL THIS HEATER 
WHILE IT IS HOT OR 
OPERATING. FIRE OR EXPLOSION COULD 
RESULT. 
CARBON MONOXIDE POISONING 
MAY LEAD TO DEATH!
8
DO NOT USE GASOLINE OR 
CRANKCASE DRAININGS. 
This appliance is designed to 
operate safely at a minimum 
ambient temperature of -20° C.
Use caution when servicing in 
wet areas. Disconnect power 
from the power mains and keep all electrical 
components from becoming wet. Only a 
qualified technician should service the 
heater
A qualified technician is 
required to install, adjust and 
where necessary; convert this heater for use 
with other fuel types.