Simple distillation unit is used in the chemical processing industry for the purification and separation of liquid mixtures. The basic components of a this unit are the process chamber or boiler, encapsulated heaters, an air-cooled condenser, associated piping, and instrumentation. Temperature sensors monitor the temperature and help maintain the required distillation temperature. This unit is ideal for distillation operation whereby the vaporization of a liquid mixture yields a vapor phase containing more than one component, and it is desired to recover one or more of these components in a pure state.