What is the minimum height for exit terminals of mechanical draft systems located near public walkways?

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The minimum height for exit terminals of mechanical draft systems located near public walkways is set at 7 feet above finished ground level to ensure safety and compliance with regulations governing the installation of propane and gas appliances. This height requirement is critical for preventing the potential hazards associated with gas exhaust, such as exposure to harmful emissions or the risk of obstruction by pedestrians. By maintaining this minimum height, the system minimizes the likelihood of gas displacing fresh air at ground level, which is particularly important in public areas where individuals frequently pass by.

Establishing a higher terminal height, like 7 feet, creates an effective barrier between the exhaust emissions and the public, further ensuring a safety margin. This height consideration is part of best practices in mechanical ventilation and draft system installation aimed at safeguarding public health and ensuring an efficient discharge of gases into the atmosphere.

The other height options either do not meet the established safety standards or exceed what is required, potentially leading to unnecessarily complicated installation processes or increased costs without added benefits in safety or compliance.

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