The Control-Therm Assembly Type U is a blend of heating and regulation. The compact heater is specifically developed for use in small tanks during the requirement of low power in a reduced space. The device integrates the heater, the temperature sensor and the switching circuit in one single unit providing an ideal economic solution. The assembly type U is developed on a plastic rod structure (ø 20 mm) in PP or PVDF. The PVDF or PP terminal casing contain temperature settings. The standard configuration includes heating cable coated Teflon® FEP with rod structure and terminal casing in PP or PVDF and installation at the bottom of the tank.