Question: Why doesn't my old water heater work as well as it used to?

Answer:

This is usually due to a sediment buildup in your tank. As water heaters grow older, they accumulate sediment and lime deposits. If these deposits are not removed periodically, the sediment will create a barrier between the burner and the water, greatly reducing the water heater's performance level. The result is an increase in the amount of fuel required to deliver hot water.