What is inside of a hot water heater?

Tank – The inner shell of a water heater is a heavy metal tank containing a water protective liner that holds 40 to 60 gallons (151 to 227 liters) of hot water at around 50 to 100 pounds per square inch (PSI), within the pressure range of a typical residential water system.Click to see full answer. Simply so, how does the inside of a hot water heater work?An electric water heater works essentially the same way as a gas water heater. It brings cold water in through the dip tube (1) and heats it using the electric heating elements (2) inside of the tank. The hot water rises in the tank and is moved throughout the home through the heat-out pipe (3).Also, is there copper inside a hot water heater? The electric heating elements are usually made of zinc plated copper or stainless steel sheathing around a nichrome wire. They are located inside of the water heater and need to be pulled out by disassembling through access bays located on the side of the appliance. Also Know, what is a hot water tank made out of? Almost all water heaters have been made the same way for the past 60 years. They construct a steel tank, then bond vitreous glass to the inside of it to keep it from rusting. There are variations in manufacturing quality, however, so some tanks might have a better glass lining than others.Can a water heater explode?If the temperature is set too high or the pressure relief valve of a water heater malfunctions, a water heater can explode. This can happen with a gas or electric hot water heater. Although it is unlikely for water heaters to explode, when they do, they operate much the same as a rocket.