Using for shower, boiling, footbath, washing faucet. water transflux heater, water immerging heater, under tank heater PTC WATER HEATING ELEMENT TypeSpecialtyExcellenceshortcomingOthersTransflux heaterWater transflux hole of the heaterLarge power, quick heatingWater must flowIt can be used to heat tap water supplyImmergingheaterHeater immerge at bottom of water tankIt can be used to heat quiet ...