On a 14/12 pitch roof, what would be the termination of a 5-inch B-Vent?

The termination requirements for a B-Vent (also known as a Type B vent) system are critical to ensuring proper ventilation and safety for gas appliances. In this case, for a 14/12 pitch roof, the termination height of the vent must comply with local building codes and regulations.

When determining the appropriate height for vent termination, the general guideline is that the bottom of the termination must be at least 5 feet above the highest point of the roof within a horizontal distance of 10 feet. This is to prevent the vent gases from interfering with the air supply for gas appliances and to minimize the potential for backdrafting or other hazardous conditions.

Given the specifications of the 14/12 pitch roof and the size of the B-Vent, the correct termination height is indeed 5 feet. This ensures that the vent is adequately positioned to function effectively without causing any safety concerns or code violations.

The other options either fall short of the minimum requirement or do not adhere to the specific guidelines set out for vent termination related to the pitch of the roof and the vent size, thus making them non-compliant.