A water heater s useful life varies depending on the type of water heater the quality of the unit and how well it s been maintained.
Water heater life expectancy gas.
With regular inspection draining and flushing you can expect a gas water heater to last anywhere from 8 12 years and an electric water heater to last anywhere from 10 15 years.
Home inspectors typically expect a generic water heater to last about ten years.
A typical gas or oil fired water heater life expectancy is from 8 12 years according to sources we ve researched and report here and for tankless water heaters 18 20 years.
The rod attracts corrosive particles through electrolysis.
These particles usually stick to the anode rod where they can t mess up the water tank.
These types of heaters tend to last between 8 and 12 years.
A tankless water heater lasts about 20 years.
Average lifespan while today s water heaters are better designed than older models they still require regular maintenance in order to prolong their lives.
Department of energy estimates gas fired tankless heaters save an average of 108 in energy costs per year over their traditional tank counterparts while electric tankless heaters save 44 per year.
Gas heaters tend to have a life expectancy of about 6 to 8 years.
The most common reason a gas water heater fails is corrosion.
Although taking great care of your water heater can increase the life expectancy by quite a few years once your unit becomes more than 10 years old it s best to keep a close eye on it.
First let s look at the lifespan of a conventional gas water heater.
Tankless heaters have a much longer life span that both the water heater and the gas heater.
Properly maintained water heaters typically last between eight and13 years.
A traditional water heater lasts about 12 years.
Gas water heater problems as gas heaters age they gather corrosive particles.
The heater has an anode rod to protect its interior lining.