What is the maximum length allowed for a gas dryer vent installation?

The maximum length allowed for a gas dryer vent installation is typically governed by the manufacturer's instructions and local codes. A common standard accepted by many manufacturers is 35 feet, which is why this value is often indicated as the correct answer.

A vent length of 35 feet is considered optimal for maintaining proper airflow, ensuring that lint doesn't accumulate, and facilitating safe and efficient exhaust of gases. Beyond this length, the effectiveness of the vent diminishes, which can lead to increased drying times and may pose a safety risk. This standard allows for several bends in the ductwork, which can also impede airflow if not taken into account.

In practice, different manufacturers may specify different maximum lengths based on their specific dryer models, but 35 feet strikes a balance between performance and safety across many products. When venting systems exceed this recommended length, they often require larger vent sizes or special provisions to ensure functionality and safety, which may not align with standard practices.