What is the recommended distance of vent terminations from doors or windows?

The recommended distance for vent terminations from doors or windows is 6 feet. This guideline is in place to ensure that exhaust gases from ventilation systems do not re-enter buildings through openings where people might gather or reside, such as doors and windows. The 6-foot distance helps to minimize potential health hazards associated with inhalation of exhaust fumes and also prevents unpleasant odors from invading interior spaces. It's essential in maintaining indoor air quality and ensuring the safety and comfort of occupants.

In contrast, shorter distances, like 3 feet, 4 feet, or 8 feet, do not provide the same level of assurance and could lead to situations where exhaust air could be drawn back into a building, thus violating health and safety standards.