How Leaky Ducts Cause Mold

Cool Talk with Hartzell's | Your HVAC Questions, Answered! · Oct 2, 2026 · 21m · transcript

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DAVE: You ever walk into your own house and catch a musty smell you can't place? Maybe it's stronger in the hallway closet, or down by the vents. Most folks spray some air freshener and move on. But nine times out of ten in central Oklahoma, that smell is moisture somewhere it shouldn't be, and your AC system is either the reason it's there or the reason it's not getting fixed. I read something this week that reminded me why I got into the diagnostic side of this trade in the first place, and I

I'm Dave Hartzell at Hartzell's Heat & Air in Kingfisher, Oklahoma. 47 years in…