Silicon Rubber Heater Current Rating 10 A Environment Indoor Outdoor For Container Capacity 55 gal For Container Material Type Metal Plastic For Container Type Drums Thermostat Temperature -Maximum 85 Degrees F Thermostat Temperature -Minimum 67 Degrees F Operating Voltage 115V AC Watt Density 5 W/sq in Watts 1 200 W Drum Diameter - Maximum 23 1/5 in Drum Diameter - Minimum 22 3/10 in Electrical Connection Type 5-15P Plug