... in resistance to corrosion. But its heating power could not be very large. 4) Stainless steel or titanium ... .2. Some samples of uses.PTC water heater could be used for shower, footbath, washing hand, ... , milk warmer, vapor generator, sauna bath.They could be used in heating diesel oil, gasoline or ... low water level, incrustant depositing. 2) Applied voltage could be 12~72V, 100~380V. Two applied voltages ...