What is the correct response regarding the drafting capabilities in systems with hot exhaust gases?

Hot exhaust gases are less dense than cooler air, which affects the drafting capabilities within a venting system. When hot gases rise, they create a pressure difference that helps in drawing more air into the system, promoting a stronger draft. This principle is based on the idea that warmer air ascends, leading to a more effective venting process as the upward movement of hot gases facilitates the flow of exhaust out of the system and replacement with cooler air.

In the context of the other options, while it's true that cooler conditions or other factors can hinder efficient venting or create weaker drafts, the presence of hot exhaust gases directly enhances the strength of the draft. This characteristic is essential for ensuring proper ventilation and combustion efficiency in various gas systems.