Drum heaters are electrical resistance heaters in a flexible form that can be easily wrapped around metal drums and tanks.  They are constructed of silicone rubber reinforced fiberglass cloth laminated around a Nickel Alloy circuit to provide flexible, moisture-and-chemical resistant heat.  They are designed for viscosity control and maintaining drum contents at an elevated temperature, as well as freeze protection and melting of solids.   

Fire/Explosion Hazard – Do not seal drums when applying heat.  Drums are containers only and not designed to be used as pressure vessels.  Failure to heed this warning can cause severe personal injury, death or substantial property damage.  Bungs and vent caps should be removed and clamps and gaskets left off removing type drum tops. 

Fire Hazard – Non-metal drums are easily damaged by heat.  Drum heaters are intended for use on metal drums only. 

Fire Hazard – Do not expose drum heaters to chemicals such as acids, alkalis, oils, fluids or other substances that could ignite or cause damage to the heater. 

1. Wrap and clamp heater around drum prior to switching on.
2. Pull on spring, at the same time, hold hook end of the heater against the drum. 
3. Place a loop of the spring over the hook. 
4. Heater must not be clamped in dented areas of the drums.
5. Heater must be in full contact with the drum and below the level of liquid while in operation.
6. Do not bend heater sharply, as this may cause internal damage to the heater element.
7. Open drum to allow for expansion when heating.
8. Set thermostat to lowest setting - full counter-clockwise position.
9. Plug in heater.
10. Adjust thermostat to appropriate setting – turn clockwise to increase temperature.

1. If the liquid level in the drum or tank is low, disconnect the heater.
2. Protect the heater from liquid spill over or abuse. 
3. If the drum is dented or empty, do not use the heater, as it may cause the heater to burn out prematurely.
4. Maximum operating temperature is 300°F and maximum exposure temperature is 400°F.  Do not operate the heater under conditions that result in temperatures higher than the recommended maximum since excess temperatures cause premature heater failure. 
5. The thermostat range is 50°F to 425°F.  To set the thermostat to the lowest temperature, rotate the knob to the full counter-clockwise position; the full clockwise position is the highest temperature setting. 
6. Any questions about the Keep heater free from chemicals, acids, alkalis, oils, fluids, or other substances that could ignite or cause damage to the heater.  Keep heater below the level of the contents inside the drum.  Check that heater fits tight against the drum or tank.  Heater contains no user serviceable parts.  In the event the heater stops working, or if you have any questions about the use of this product - contact Hi-Tech Systems at (800) 454-5530.