Installation - The dryer venting materials are an important factor in dryer performance and safety. AHAM recommends the use of rigid sheet metal or corrugated semi-rigid sheet metal venting material. Do not use coiled-wire foil or plastic venting material. Not using the recommended venting materials could reduce airflow and drying time could be lengthened unnecessarily.
Maintenance - Dryers need maintenance like any other appliance. In order to keep sufficient airflow around the heating source, lint must be removed from the dryer and vent. Lint and dust can build-up over time and reduce airflow, resulting in decreased performance, by not allowing air to circulate freely through the dryer. Don't forget to clean the back of the dryer, where lint can be trapped. Clean the lint filter before and after each load. The interior of the appliance and venting system should be cleaned periodically by qualified service personnel. If you notice that the drying time is longer, clean the vent system thoroughly to ensure that there is proper airflow.
Keep the area around the dryer clean and free of clutter.