What is the minimum diameter for an electric dryer vent?

The minimum diameter for an electric dryer vent is 4 inches. This standard is based on the need for adequate airflow and the efficient removal of moisture and lint from the dryer. A 4-inch diameter vent allows for proper ventilation, preventing lint buildup and reducing the risk of fire hazards associated with inadequate venting. The larger diameter ensures that the exhaust air can be expelled effectively, which is crucial for the dryer's performance and the safety of the surrounding environment. Using smaller diameters can lead to restricted airflow, overworking the dryer’s motor and potentially leading to malfunction or fire risk. Thus, a 4-inch vent is essential for maintaining both the efficiency and safety of electric dryers.