The Weirdest Things I've Ever Found Inside HVAC Ductwork

This is a guest post by Bob Wells, a retired HVAC tech who now dedicates himself to sharing knowledge on his website hvactraining101.com.

No matter what our specialty, once we’ve been on a construction-related job a few years, we’ve got a few stories to tell. A lot of them start with “How the he**” did that get there, or “YUCK!”

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