How Tankless Water Heaters Work
Tankless water heaters (also known as, demand-type or on-demand water heaters) heat water directly, without the need to store water. A tankless heater has a flow sensing device that is activated whenever a hot water tap is opened. The unit then heats the water using either a gas burner or an electric element and directs the water on a needed basis. Since there’s no tank that must be filled, you don’t have to worry about running out of hot water if you don’t get the first shower in the morning. Once you close the hot water tap, the unit senses that the flow of water has stopped and shuts off the heating element.
Advantages Of Tankless Water Heaters
•They are smaller than conventional storage heaters.
•Wall-mounted and do not take up floor space. Their size can provide a huge advantage in homes where square footage is limited.
•They can help you save on your energy costs. According to the
U.S. Department of Energy, heating water accounts for about 30 percent of a family’s energy bills. Using a tankless water heater may reduce these
costs by up to 50 percent, for an average annual savings of $80. Tankless
units have an average lifespan of about twice that of conventional water heaters 20 years or more.
•If your unit is installed in the attic, you don't need to worry about the damage that can be caused by a leaking tank overhead.
•If your house currently requires two tanks to supply sufficient hot water
then normally one tankless unit will replace the two tanks.
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