Amends the Energy Policy and Conservation Act to include within the meaning of "water heater" an electric instantaneous water heater with an input of 25 kilowatts or less. (Current law includes an electric instantaneous water heater with an input of 12 kilowatts or less within the meaning of "water heater.")
Establishes the minimum required energy factor for such water heaters manufactured on or after January 1, 2012.
Requires the Secretary of Energy (DOE) to prescribe test procedures under such Act for such water heaters.