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 ...

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

This means you never run out of hot water, and there’s no need to wait for a tank to refill. Heating mechanism: Tankless heaters use electric elements or gas burners to heat water instantly when ...