In this episode, Bill chats with Kevin Hart, the founder of HAVEN, a start up that makes a unique IAQ sensor/control system. Hear from Kevin about his background as an electrical contractor and how he came up with the idea for Haven, as well as all the iterations the product has been through. In the episode he describes RDCV: Residential Demand Control Ventilation and why it is important for contractors and homeowners to understand details on this subject. Learn how a simple chemical compound that is found in most homes can convert to formaldehyde, a carcinogen. Haven Website: https://haveniaq.com/ Haven for sale at TruTech Tools: https://www.trutechtools.com/haven Haven 22 is the DISCOUNT CODE for this product: https://www.trutechtools.com/haven-central-air-monitor.html which is for Pros to use to get a product to install for customers or in their own homes. Kevin’s LinkedIn: https://www.linkedin.com/in/kevinrhart/ Kevin’s email: kevin@haveniaq.com   Here’s a link to Grace and Corbett Lunsford’s HOMECHEM videos we mentioned: http://bit.ly/HOMEchem     This episode was recorded in March 2023.