Their expected service life is 10 and 15 years according to the u s.
Hot water heater lifespan.
Homeowners should anticipate replacing their water heater every eight to 12 years.
An average electric water heater life expectancy is just a few years longer than a gas water heater lifespan at around 10 15 years.
Tankless water heaters have a typical life expectancy of more than 20 years.
In fact the only difference is that the water in an electric system is heated with upper and lower heating elements that extend into the tank.
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.
The lifespan of a hot water heater will vary considerably based on the make model and level of use.
Typical water heater warranty periods for a water heater installed for use by a single family are 6 years 9 years or 12 years.
The warranty period of a water heater may be encoded in its model or serial number.
The two types of water heaters work in much the same way.
Conventional tank style electric and gas fired water heaters are cylindrical appliances that warm and store a specified amount of water typically 40 to 80 gallons.
For example a water heater in a household of eight will see much more use than one in a household of two and in a much shorter period.