Where should cleanout openings be located on grease ducts?

Cleanout openings on grease ducts are essential for maintenance and to ensure the safe operation of the duct system. These openings allow for the removal of accumulated grease and debris, which can pose a fire hazard if not properly managed.

Placing cleanout openings on the side or top of the duct maximizes accessibility and effectiveness. This positioning allows for easier inspection and cleaning, as the grease typically collects at various points along the duct. In many cases, grease accumulation occurs at angles or where airflow changes direction, necessitating cleanouts that can be accessed easily from multiple locations.

Having cleanouts only at the bottom or at a specific midpoint would not provide the same level of access or ensure that all potential buildup locations are addressed, leading to increased risk of blockage or fire hazards. Therefore, the requirement for cleanouts to be on the side or on top aligns with safety and maintenance practices outlined in the applicable mechanical code standards, facilitating better management of the duct system.