Just ask anyone who has experienced a faulty water heater
These heat transfer factory are designed to lower your energy bills by retaining a large amount of heated water at a time (without having to continuously run it's heating core).
Both references are correct but there are different kinds depending in the type of energy they use. What's A Water Heater? A water heater is a heater and storage tank built to supply heated water.
As a home owner, you'll want to purchase and install a water heater that will not only supply a continuous supply of hot water, but also one that will accommodate your needs no matter how large your family gets and how many times the water heater is accessed. Just ask anyone who has experienced a faulty water heater!
One faulty water heater and everything is thrown askew! Water heaters can fail to adequately perform for a number of reasons - age being one of them. You might also hear tankless water heaters referred to as tankless instantaneous, instant-on, or in-line water heaters.. For example, you might prefer a tank water heater that's insulated to conserve heat.