In a conventional gas shower system, minutes of potable water are wasted until the device heats the water completely. Liters are literally thrown down the drain with your money. The exclusive Eco Control System® solves this problem definitively. The cold water that would be thrown down the box drain is diverted and returned in full potability to the cistern of the building or house, generating a sustainable cycle. In this way, only the water used is paid, generating savings in the shower that can exceed 95%.