Have you ever thought about how hot your dryer gets? Thermostats and thermal fuses are put in dryers for your safety and if you don't maintain them, you could be putting yourself, your house, and your family at risk. Your dryer uses of a combination of heat and airflow to dry your clothes. The heat generated in your dryer is produced by a heating element controlled by a series of thermostats. If any of your dryer's thermostats are defective, the results can be disastrous.