Most of the water heaters in use today are either gas or electric powered. A water line runs to the heater, filling it with water. As the hot water is used throughout the household, more water goes into the hot water tank to be heated up.
If you are getting ready to move into a new home, you might be wondering what type of hot water tank you want to install. There are advantages and disadvantages to both gas and electric powered hot water tanks. I cant say one is better than the other, it just depends on what your situation is. By knowing the difference between the two types of hot water heaters, you will know which one it is that you want to get.