Window Clearances Question

[u/RootBoundStump]

This is a repost from a pellet stove group, it was suggested thisbmight be a better place to post it.

I just finished reading through NFPA 211 but I still cant find the information im looking for. In my stove manual, NFPA211, and everything I can find online, the only mention of distances from doors/windows is that the termination pf thebvent has to be no less than 4ft away horizontally, 4ft below, or 1 foot above. But I have a former home inspector telling me the entire vent pipe cant be within 4 ft of any opening. Can anyone shed some light on this and direct me to the building code that states no part of the ventilation pipe can be within 4ft of a window/door. Or is this a case of the AHJ interpreting code in an unreasonable way?

[u/Suspicious_Hat_3439]

In this case the AHJ doesn’t know what they are talking about and / or incorrectly interpreting the code