People tend to be very familiar with the concept behind tank water heaters. They contain a large amount of water, which is kept at a high temperature. When the hot water is used, the tank must refill with cold water and heat up again, and someone complains that someone else has used all the hot water and the shower is cold now.
Tankless water heaters are different, and people are not always as familiar with how they work. With no storage tank, and no water being held at a high temperature, how do tankless water heaters provide hot water? We’ll tell you all about it.