How Long Can a Water Heater Be On Without Water?
If you're wondering how long can a water heater be on without water, you should know that we're talking about seconds or minutes, not hours. It's one of those "oops" moments that can happen during a DIY installation or after you've drained the tank for maintenance and forgot to flip the breaker back on. Whether you have an electric unit or a gas one, running it dry—often called "dry firing"—is a recipe for a very expensive headache. ...