You have entered the home of Water Heating University. Our goal is to help educate consumers on this new up and coming technology. Energy savings, size, and efficiency are the main reasons most people are interested in tankless water heaters. However, the main people love tankless water heaters are that they can enjoy endless hot water, without waiting for their water heater to catch up with their demand. Finally never having to worry about about your home having to suffer the damage caused by an old rotting water heater. No tank no worries.