Water heating is the second-largest energy cost for U.S. households. But you can save with a more efficient water heater, ...

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 ...

An electric water heater doesn't have any of these ... that the kitchen faucet produces hot water but you can't get a hot shower. Common reasons are: • A cross connection.