What is the minimum clearance to combustibles from the top of the plenum of a Converted Forced Warm Air Furnace?

The minimum clearance to combustibles from the top of the plenum of a Converted Forced Warm Air Furnace is specified to ensure safety and prevent any potential fire hazards. Maintaining proper clearance allows for adequate heat dissipation and reduces the risk of ignition of nearby combustible materials.

In many codes and guidelines, the requirement for a clearance of 1 inch is applicable, particularly for certain types of furnace installations allowing for a tighter clearance under specific conditions. This distance is often suitable for applications where the furnace is properly designed and installed, mitigating risks associated with heat buildup.

Understanding these clearances is crucial for gas technicians as they ensure compliance with safety standards and regulations, ultimately helping to protect both property and individuals from fire hazards.