Most homes have a conventional water heater. The lifespan for an electric water heater is around 8-10 years and 6-8 years for a gas water heater. There are pros and cons of a conventional water heater.
Pros for Conventional Water Heater
- Proven Reliability: This straightforward conventional water heater has been around for years and works well.
- Energy Star Tanks Available: The Energy Star program certifies conventional high-efficiency gas water heaters, so it's possible to save energy and money. Units must have an energy factor of .62 to be considered in the Energy Star Program.
- Low Product Cost and Low Installation Cost
- Inexpensive Replacement Cost
Cons for Conventional
- Always On: Regardless of the energy efficiency, a storage tank cycles on a regular basis to heat and reheat water to a preset a temperature. Whether the homeowner needs it or not, energy is being used to heat the water.
- Big and Bulky: A majority of the conventional water heaters take up precious space in a laundry room or mechanical room.
- May be Inadequate: Conventional water heaters, depending on the hot water needs of the household, may not be able to meet the demand. If the water heater is sized incorrectly hot water will run out during peak demand times. Also, only about 70% of the hot water in a conventional water heater is available for use.
- Less Durable: When a conventional water heater reaches its life expectancy after 8 to 12 years they can begin to leak and cause property damage.