Always remember a dryer is all about removing heat. Clean your lint filter after every use.
Keeps good airflow and prevents fires.
It is really important to have your dryer exhaust cleaned regularly (1-2 years). Make sure your exhaust is not kinked, that well cause your dryer to overheat.
Please keep in mind that a dryer has Wear and tear components as well as maintenance. Maintenance should be done every 1.5 years for best heating performance