THERMODINAMIK TRZB60L-F (60 liters) and TRZB80L-F (80 liters) model dual tank electric water heaters, developed as a result of R&D studies, are designed to meet only the need for hot water. TRZB60L-F and TRZB80L-F model dual tank electric water heaters have been designed considering the 2006/95/AT Low Voltage Regulation. The purpose of this regulation; is to determine the procedures and principles regarding the safety rules and conformity assessment procedures required for the placing on the market of the electrical equipment covered by this regulation, after providing the safety requirements and conformity assessment procedures in this regulation. There are two different models, 60 liters and 80 liters, to prevent unnecessary energy consumption and to supply the desired amount of hot water. Thanks to the inlet connection where the cold water is taken into the tank and the hot water connection coming out of the tank from different tanks; cold water and hot water mix later than the standard single-tank water heaters available in the market, and in this way, the desired hot water is prepared more quickly. (Dual Tank System) Glass enamel inner tank coating provides long life and high resistance against corrosion and lime. Thanks to the polyurethane insulation that surrounds the tanks, it provides very good insulation and thus keeps the water in it always warm.