What is the primary purpose of the exit terminals of mechanical draft systems concerning public safety?

The primary purpose of the exit terminals of mechanical draft systems concerning public safety is to prevent flue gas exposure. These systems are designed to safely direct exhaust gases produced during combustion away from the appliance and out of the building. By ensuring that flue gases, which can contain harmful substances like carbon monoxide, are effectively vented outside, the exit terminals play a critical role in reducing the risk of these gases accumulating in living or working spaces.

Maintaining adequate ventilation is essential not only for the efficiency of combustion appliances but also for protecting the health and safety of individuals in proximity to the equipment. The correct positioning and design of exit terminals help ensure that flue gases are not reintroduced into the indoor environment, thereby mitigating potential hazards.