© 2021 Pinnacle Climate Technologies, Inc.
NEVER LEAVE HEATER UNATTENDED WHILE BURNING OR  
WHILE CONNECTED TO A POWER SOURCE
Operation: ST-70-SS-E / ST-70T-SS-E / ST-125-OFR-E
Starting the Heater: (Ignition)
1.  Fill the tank with Paraffin or other approved 
fuel until needle on fuel gauge points to “F”.
2.  Replace fuel cap and tighten firmly.
NOTE: On first ignition or after refueling, 
you may hear a grinding sound just before 
ignition.  This is the fuel pump removing the 
air from the fuel line. Your heater will start up 
within seconds. If it does not start repeat  
start-up procedures with fuel gauge reading at 
least 1/2 tank.
NOTE: Smoking may occur on first ignition.
NOTE: The electrical components of these 
heaters are protected by a fuse mounted 
in 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 1-3 above.
2.  Push the power switch to the “ON” position. 
The power indicator lamp will light and heater 
will ignite. (See Figure 5)
Stopping the Heater: (Cool Down) 
1.  Turn the power switch to the “OFF” position. 
Combustion will stop and the Cooling Cycle 
will begin.
- ST-70-SS-E / ST-70T-SS-E: approx. 7 mins  
- ST-125-OFR-E: approx 3 mins
When the Cooling Cycle is complete the fan 
will stop running and it will be safe to unplug 
the heater.
NOTE: Unplugging the heater before the 
Cooling Cycle has been completed may cause 
overheating, possible damage to the heater and 
heat plate.
Restarting the Heater:
1.  Wait ten seconds after Cooling Cycle has 
been completed.
2.  Follow all start-up procedures above.
Figure 5
Power Switch
9
DO NOT disconnect heater 
from power source before 
cooling cycle has been completed.