One of the things I liked about living in Japan 20 years ago was the on-demand water heater that supplied the kitchen sink. Turn it on, and you had instant hot water ... and a new electric circuit ...

These days, humans have gotten all fancy-schmancy with their gas and electric water heaters. Heck ... If you’re looking for a hot shower from your outdoor wood stove, a build like this might ...

Uniform Energy Factor refers to a water heater's efficiency when run under simulated heavy use conditions for a 24-hour period. Electric Tanked is part of the Water Heaters test program at ...