How to handle the carbon in electric heaters?

If we do not pay attention to maintenance electric heaters, it is easy to have excessive carbon, what is the way to solve too much electric heater?When using an electric heater, personal heater there is too much carbon to reduce the thermal efficiency, and when we can combust to the electric heater or clean in the water cover in the water cover, clean it.We need regular check to prevent excessive accumulation of carbon.In fact, as long as we maintain electric heater with electric heaters, there are many ways to solve excessive production of electric heaters.