... for shower, ducking bath, footbath, washing hand, vegetable and dish. PTC water heater for drink warmer and boiler, vapor generater, detailed ... used to heat oil, or other liquid.Notice in appliance.PTC as a heating element, it fits for high safety, slap ... is the power.Using higher switch temperature PTC can get higher power, 220~270switch temperature PTC is selected usually. But if select ...