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.
Location and Size. 1  Location - Replacement water heaters need to fit in the same spot in your home. 2  Dimensions - Before buying, measure the height and width of your current water heater. 3  Capacity - Most homes have 40- or 50-gallon capacity water heaters, although capacity ranges from 30 to 80 gallons.