Available on Project MUSE and JSTOR. Online access to Contemporary Literature is available as part of the Project MUSE collections. All back issues of Contemporary Literature beginning with Vol. 1, 1960 are available online through the JSTOR digital archive.
Many manufacturers recommend water heater anode replacement every two to four years depending on the hardness of the water that passes through the tank and the quality of the water heater lining.
To get to know about the unitâs lifespan, we have to look out for the various hints which will signal you about the condition of the water heater. #1 Age of the Water Heater. This is the primary factor of all, age or the usage period of the water heater. The average usage time is found to be 8 to 10 years. After your unit has passed this time, you have to be more aware as the unit is likely to get some issues with it.