Travel Coffee Tea Water Heater Boiler Immersion 7" Long Element Portable 1500w 1500W WATER BOILING HEATER 110V 1500W Quick Water Boiler Stainless Steel Heating Element 4.9` Cable Length 10 Total Length; 7.3"" Sheel (Heater Element) Length Instructions: Do Not Submerge More Than 1/2 Above The Top Coil. If You Submerge Deeper The" Unit Will Blow The Built In Fuse; Making The Unit Inoperable.