In regards to creating hot water in a home, there are actually two choices to contemplate; an unit with a tankless water heater or a tank. Believe it or not, there's really quite a bit that goes into creating hot water through the home making it all the more important you understand what to look for in a tankless unit. In order to achieve this, you first must understand the science of tankless hot water heater.
The thought for a tankless unit originated in Asia and Europe where it has existed for decades. Dating back to the early 1990s, energy costs shot up in North America leading to many consumers looking at technology solutions that were green. As a result, tankless hot water heater without a tank slowly migrated to the U.S. and Canada.
Some of the early versions were more designed for low-flow uses simply and weren't sophisticated at all. To the contrary, now tankless units are exceptionally strong and capable of managing hot water demands that are significant for a whole family. And while model, each unit and company distributing them may change, the general theory behind the tankless heater stays exactly the same.