Water heater timers are devices that provide automatic control of electric water heaters. They can be programmed to turn a water heater off or on at times typically set by your local utility. Your local electric utility may have in place an “Off-Peak” or Time-of-Use (TOU) rates which offer a customer the incentive to consume power during certain periods of the day. The Hubbell Model E is available with various timer control options, ranging from programmable 7 day timers to utility specific devices that control the water heater.