Tankless water heaters are worth it.

The average lifespan of a water heater is around 13 years, meaning most homeowners will at some point be forced to make a decision about changing their water heater for a new one. As more and more people see the benefits of installing a tankless water heater in their homes these so called on demand systems are growing in popularity. With high savings in monthly energy bills available through the use of a tankless water heater most homeowners now believe these are a good choice for energy efficiency and lower energy bills.
A tankless water heater is usually a small water heater without a tank that is capable of heating water as it is needed within a home and eliminating wasted heated water stored for a long time in a tank. By installing a tankless water heater the homeowner should offset the higher purchasing costs with savings continuing through lower energy bills over the life of the heater. On average tankless water heaters installed correctly should save between 10 and 20 percent each month in energy bills; for the average home this translates as between $70 and $80 per year.
By installing a tankless water heater the entire plumbing system of a home could last longer. Because an on demand system is usually a small box installed either centrally in a home or close to a sink or bathroom less corrosive hot water is stored in pipes for long periods. The average lifespan of a tank water heater is around 13 years, while tankless systems can last for between 15 and 20 years.
As we all now know the changing environment of the world should be considered by all people purchasing products for their homes. Tankless water heaters are more energy efficient than tank versions meaning less energy and water is wasted when water is heated in a tank and not used. How water can also cool in long pipes leading form the heater, which does not occur in tankless systems. Therefore less water and energy are wasted helping preserve the worlds resources.