DIY Test of Zehnder ERV (or any other brand) Commissioning Extracts in Bathrooms

Thanks to Dave M. for letting us share his project- he installed all of this himself, with a very hurried few months of researching on YouTube. Anyone can do it, if working with a pro is not an option. Manometer used was Retrotec Solo: https://trutechtools.com/retrotec-sol... To learn everything I know on this topic, take my Ventilation Design and Installation course: https://buildingperformanceworkshop.c... Join the world's best year-round conference on building science for as little as $5:   / homediagnosistv   Get 1-on-1 help with any home or training for pros: https://buildingperformanceworkshop.com/