Capable of dramatically reducing hot water costs, the best electric tankless water heater offers many benefits. This guide has the top picks.

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

the cold water travels through a pipe and into the tankless water heater unit where it is heated by a gas burner or an electric element. This allows you a constant supply of hot water. On average ...