The recent discussion about a tankless system replied a response about the efficiency of the current tank heaters lead me to ask the following question.
Tank heaters are more efficient than many people do realize, but some time ago, I watch one of the home repair TV shows who installed a "Vertex" water heater. The pitch was a comparison of the Vertex and the standard heater. The Vertex loses roughly 2% of it's energy and is 98% efficient compared to the standard tank of 40% loss and 60% efficient, or somewhere along those lines. Anyone have any experience or knowledge with the Vertex and can shed some light on it's comparison to a standard tank?
Thanks