What is a common result of improper vent installation?

Improper vent installation can lead to potential backdrafts and dangerous gas exposure, as it disrupts the proper flow of air and exhaust within a system. Proper venting is essential for safely channeling combustion gases outside, especially in heating systems that rely on gas burning. If vents are incorrectly installed, it can create negative pressure zones, where gases do not exit as they should. This can result in the reversal of airflow, where hazardous gases like carbon monoxide can backflow into the living space, posing serious health and safety risks to occupants. Proper installation ensures that any combustion byproducts are effectively removed from the building, thereby preventing these dangerous scenarios.