A venting system must be designed and constructed to remove flue or vent gases to what location?

The correct answer is that a venting system must be designed and constructed to remove flue or vent gases to the outdoors. This is essential for safety and efficiency, as venting flue gases, which can include harmful substances like carbon monoxide, directly outside of the building significantly reduces the risk of indoor air pollution and associated health hazards.

In residential and commercial applications, venting systems must ensure that exhaust gases disperse adequately into the ambient air, preventing any harmful buildup within the living or working environments. Designing the venting system to expel gases outdoors ensures compliance with safety standards and regulations outlined in the NFPA 58 and other relevant codes, which prioritize occupant safety and environmental protection.

Venting inside the building, to a vent terminal, or to the attic would not serve the same safety purpose. Venting inside the building would pose a risk of gas accumulation, while venting to the attic could lead to the same consequences along with potential fire hazards. Therefore, the requirement to vent outdoor ensures a clear and safe method for managing exhaust gases effectively.