When a venting system terminates at the sidewall of a structure, how many feet above an air inlet must it be?

The requirement for a venting system that terminates at the sidewall of a structure to be at least 3 feet above an air inlet is grounded in safety and efficiency considerations. This height ensures that any exhaust gases move a sufficient distance away from the air intake, preventing contamination of the incoming air supply.

This is particularly important in maintaining proper combustion and heating system efficiency as well as protecting air quality within the building. If the vent is positioned too low relative to an air inlet, there is a risk that flue gases could be reintroduced into the building, which may lead to carbon monoxide buildup and other hazardous conditions.

The specified height also aligns with industry standards and best practices for venting installations, which prioritize safety and effectiveness in the operation of oil heating systems. By adhering to this requirement, technicians and installers contribute to a safer environment for building occupants.