What is the appropriate termination distance for a flue gas outlet from any window or door?

The appropriate termination distance for a flue gas outlet from any window or door is 4 feet. This requirement is established to ensure the safe discharge of flue gases away from living spaces. The 4-foot distance minimizes the possibility of flue gases entering the building, reducing the risk of carbon monoxide accumulation and other harmful effects from combustion byproducts.

Furthermore, maintaining this distance provides adequate ventilation and dilution of gases in outdoor air, which is crucial for safety and air quality. The established guidelines reflect best practices in the heating and ventilation industry, promoting the health and safety of occupants within the building.

In essence, this regulation helps protect against the dangers posed by flue gas emissions that can arise from malfunctioning appliances or installations, thus safeguarding both the structure and its inhabitants.