Final answer:
The minimum height that a flue vent can terminate above the roof is determined by various factors including building codes and safety regulations, with a common guideline being a minimum distance of 3 feet above the highest point of the roof.
Step-by-step explanation:
The minimum height that a flue vent can terminate above the roof depends on various factors including the type of flue, local building codes, and safety regulations. However, a common guideline is to maintain a minimum distance of 3 feet above the highest point where it passes through the roof. This ensures proper ventilation and prevents any potential hazards.