Where should cleanouts serving horizontal sections of grease ducts be located?

Cleanouts serving horizontal sections of grease ducts should be located at grease reservoirs. This placement is crucial for maintenance and cleaning purposes. Grease ducts are prone to accumulating grease and other residues, which can lead to blockages and potential fire hazards. By positioning cleanouts at the grease reservoirs, it enables easier access for cleaning and ensures that any grease buildup can be effectively removed from the system. This helps maintain the efficiency of the ventilation system and promotes safety by minimizing flammable materials within the ductwork.

The other locations, such as the top of the duct or along the sides, would not provide the same level of accessibility or practicality for cleaning. Placing cleanouts near the exit of the duct also would not effectively address the accumulation of grease that occurs within the reservoirs, thus compromising the integrity of the duct system.