Rinnai is the clear leader in tankless water heater units. Since 1974 Rinnai has been creating and innovation some of the latest and greatest things in the hot water industry. Many plumbers, such as KC Plumber Pro, will tell you that they will only install Rinnai when it comes to tankless units.
One of the biggest advantages to choosing a Rinnai tankless water heater is the fact that they offer they very best training and support to help ensure proper installation and repair. They put on a free coarse to any licensed plumber that is interested in learning more about how these units operate. In the class there are several tankless units in which are completely taken apart and put back together.