How ERVs Help Sealed Buildings Breathe

Cool Talk with Hartzell's | Your HVAC Questions, Answered! · Oct 27, 2026 · 18m · transcript

Give Use A Shout

DAVE: You ever walk into a building here in Kingfisher, maybe a church, maybe a little office on Main Street, and the air just feels thick? Stuffy, a little stale, like it's been breathed in and out a hundred times already? That's not your imagination. That's a building that isn't bringing in fresh outdoor air the right way. There's a new piece of equipment out that's making it a lot easier and cheaper for folks to fix that problem, and I want to walk through it today because it matters more tha

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