No, our heaters do not burn out often. That does not mean they will last forever. We find they last about 6-8 years. Some have lasted 12+ years. You get long life and if it does fail in the warranty period you are covered. Even outside of the warranty it’s about $25 to get a new heater for your unit and they are super easy to fix. Ceramic heaters last so long because the element is sealed inside the ceramic stopping oxidation. The higher the temperature the faster metal oxidizes, but in ceramic it is nearly eliminated and the life extended.