The WG30 is an insulated band-style drum heater specifically designed to fit a 30 Gal. drum. The heater is built for use with 120-Volts AC, drawing 2.3 Amps thus producing 280-Watts. It has a preset thermostat set to maintain a maximum temperature up to 145°F/63°C ( 10°F/5°C). 1 band on the drum will usually run cooler than 145°F because it only covers part of the Barrel. Placing a second WG30 further up the drum, above the first band, will generally decrease the time to heat and increase the maximum temperature your product reaches. Sometimes 1 is good enough, other times you might want to use 2 depending on your application. The WG30 insulated band-style drum heaters allow you to safely control the temperature of expensive chemicals and other fluids, it delivers a barrier of directional heat where it's needed most preventing fluids from freezing and maintaining optimal temperatures. This innovative heat-spreading technology insulates, protects, and maintains heat in a wide variety of applications. Our warm guard line is designed for heating jobs on a smaller scale. These models feature a lower power density than Power blanket industrial or Power blanket Xtreme products. Rest assured that these heaters are the real deal. they are more efficient and safer than other heating elements on the market and certified by etc. to UL, CSA and CE safety standards. Material: Vinyl.