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.
Average Cost To Replace A Water Heater. The average water heater has a lifespan of 12 years. If you run into the decision of whether to repair or replace your water heater, a good guideline to follow is to never spend more than half the cost of replacing a water heater on the repair. The average cost to replace a water heater is $850, with most homeowners spending between $780 and $965.