Many people aware this products, because they are really solving tons of people problem worldwide. A tankless water heater give a real deal. They are eliminated the needs of huge space for everybody who want unlimited supply of hot water in their house.
With gas and electricity as their fuel, they can deliver hot water in second. Simple working step is also make people like it, if they need to maintenance and replacing some parts that get exhausted.
I found great information about tankless water heater at vini tankless site. They are compiled all about it including installation, maintenance, price and also problem that users got.