1) Save money
Because tankless water heaters provide hot water only when it’s needed, they can save you up to 40%* on your energy bill. They feature Energy Factors of 0.82 up to 0.96, while tanks are typically 0.60.
* As based on the average cost to run an electric tank water heater per the DOE Average Energy Costs (http://www.doe.gov).
2) Continuous Hot Water
Tankless hot water heaters do not store a large volume of hot water that can be depleted, but rather heat the water as it’s being used, giving you endless comfort in the form of continuous hot water at a consistent temperature. You can even use hot water for multiple tasks—such as showering, washing dishes or doing laundry—at the same time without worrying about running out.
3) Save space
Traditional tank water heaters can take up to 16 square feet of valuable floor space. Tankless water heaters, however, are a fraction of the size and can be installed on virtually any wall, indoors or outdoors.
Tankless water heaters have a typical life expectancy of up to 20 years—twice as long as a tank-style unit.
Many tankless gas water heaters have earned ENERGY STAR® approval by meeting the strict energy efficiency guidelines set by the U.S. Environmental Protection Agency and the Department of Energy.