The SME base drum heaters are manufactured in all metal construction and have thermostat control for temperature regulation upto 300 deg. C. The heat loads are purposely kept low to provide even and mild heating. Most of the chemicals. Adhesives require fairly mild heating Standard Base drum heater has approx. 22” diameter over which all types of drums can be kept. Certain materials do require heating from bottom and hence this arrangement is ideal. Catalog No. SME-BDHThermostat Control Supply Cord: 3 meters long