Unlike smaller electronics that consume power gradually, water heaters operate in short but powerful cycles. Most electric models require between 3,000 and 4,500 watts whenever they heat water, making them one of the most demanding appliances in a home.
For comparison, a typical light bulb uses about 10 watts, a refrigerator around 150 to 300 watts, and a modern television roughly 70 watts. This means a single heating cycle can use as much electricity as dozens of smaller devices running at once, making the difference surprisingly significant.
The article highlights that “its impact accumulates constantly—day after day, month after month.” Because these heating cycles repeat throughout the day, the energy consumption quickly adds up, making the electric water heater one of the biggest hidden contributors to higher electricity bills.
