The PST barrel heaters are quick and easy to implement, and they can be used for the heating or various containers and barrels. The thermally insulated lining and the effective heating element, which is equipped with an adjustable thermostat, ensure that the temperature stays at the adjusted level. The element is easy to install around the object to be heated using the fastening bands equipped with quick release buckles. The heater is connected to the electricity network with a rubber cable that is equipped with a plug. The temperature can be adjusted steplessly within the range of 0...+90°C. The structure is equipped with double insulation, and the IP rating of the product is IP40. The heater is suitable for use with containers made of plastic or metal.