How can the age of a water heater typically be determined?

The age of a water heater can typically be determined by examining the serial number. Manufacturers often encode the manufacturing date within this serial number, making it a reliable source of information regarding when the unit was produced. For example, a serial number may include indicators such as the year and month of manufacture, allowing for straightforward calculation of the unit's age.

While the model number can provide useful information about the specifications and features of the water heater, it does not usually indicate the date of manufacture. The ANSI code relates to safety and performance standards but does not provide age information. The dip tube is a component of the water heater that directs cold water to the bottom of the tank but does not reveal information about the heater's age either.

Thus, understanding how to read the serial number is essential for determining the age of a water heater and assessing its maintenance needs or replacement timing.