What Is a Tankless Water Heater? Tankless water heaters take up much less space than storage water heaters as they heat the water directly. When you turn on the hot water, the cold water travels ...

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

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 ...