How far must listed equipment with a draft hood be from combustible materials when installed in a single-wall metal pipe?

When using single-wall metal piping for listed equipment that includes a draft hood, a separation distance from combustible materials is crucial to prevent fire hazards and ensure safe operation. The correct distance in this context is 6 inches. This requirement is established to provide adequate clearance, allowing for proper heat dissipation and minimizing the risk of ignition from the heat generated by the equipment and the exhaust gases traveling through the pipe.

In residential and commercial settings, maintaining this distance also complies with safety codes and regulations related to heating appliances and ventilation systems. It ensures that there is no accumulation of heat that could affect nearby combustible materials, thereby promoting a safer environment for the installation and use of propane-fueled equipment.

Understanding these separation requirements helps in designing and installing systems that not only function effectively but also prioritize safety, preventing potential fire incidents in proximity to combustion sources.