On Friday, July 10, 2015 at 1:24:11 PM UTC-4, wrote:
In normal use a tankless will NEVER pay for itself in energy savings -
not even close.

Probably true.

But it might pay for itself in energy savings plus water savings. Water is cheap in the US but that isn't true everywhere. We had a tankless in Germany for the kitchen, based on not wasting water (kitchen was a long way from the boiler).