What is the MINIMUM required clearance for a vent connector used on a medium-heat appliance with a single-wall metal pipe?

For a medium-heat appliance using a single-wall metal vent connector, the minimum required clearance to combustible materials is indeed 36 inches. This requirement is based on safety standards designed to prevent fire hazards. The clearance distance ensures that heat from the vent connector does not ignite nearby combustible materials, which can include wood framing, insulation, and other flammable items often found in building structures.

While shorter clearances may be acceptable for various pipe types or materials, single-wall metal pipes require this specific clearance to maintain safety and compliance with codes. Understanding these specifications is essential for ensuring the safe installation and operation of gas appliances, as well as adherence to local building regulations. Thus, recognizing the minimum distances required can prevent potential fire risks and promote a safer environment in residential or commercial settings.