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.
1 Most tank-type water heaters last 10 to 20 years, with the average age of replacement between 12 and 14 years. But there are four variables that affect the lifespan: 2  As your water heater ages, it can become an obstacle for getting or renewing homeowners insurance.