Each water heater is equipped with a replaceable anode rod. The anode rod is a factor in tank life and should only be removed for inspection or draining. Replacement of the anode rod is recommended when consumption or weight loss is greater than 75%. With regular inspection and replacement of the anode, tank life can be “greatly” extended. Frequency of anode replacement will vary depending on the water conditions and usage. Sediment on the bottom of the tank forms a layer of insulation between the gas burner and the water. The sediment slows heat transfer and overheats the tank bottom. Overheating weakens the steel and damages the glass lining, shortening the tank life. In addition, it lowers the energy efficiency of the tank. Remember operating the water heater without the anode, voids manufacturers limited warranty.

John Bruhn, Customer Service Representative