BS & Beer: The Mixing Room Method & HVAC Design

In this episode of BS & Beer Atlanta, we dive into the Mixing Room Method and the Five Factors of Ventilation with Corbett Lunsford from the Building Performance Workshop and Jesse from AprilAire, exploring real-world building science concepts that directly impact how buildings perform. We take a deep look at an experimental HVAC design for a unique "Hobbit House" project, breaking down why traditional systems often fail in high-performance or underground homes. Corbett explains his consulting format, covering everything from air tightness targets to the specific math behind dehumidification and filtration needs. In this episode, we cover: The Five Factors of Ventilation: Circulation, Capture/Filtration, Humidity Control, Dilution Air, and Pressure Relief. The Mixing Room Method: A DIY-friendly alternative to complex ducted HVAC. Filtration Realities: Why MERV 16 matters and the problem with "blow-by" in standard filters. Humidity Control: Calculating the actual pints-per-day needed for your climate. Makeup Air: Why tight houses can't rely on standard bath fans or vented dryers. Check out other presentations:    • BS and Beer Presentations   Episode Information 🎤 Speaker(s): Corbett Lunsford – Building Performance Workshop Website: https://buildingperformanceworkshop.com/ YouTube: @HomeDiagnosisTV 🌳 Event Sponsors Jesse – AprilAire Website: https://www.aprilaire.com/ 📍 Location: Southface Energy Institute- https://www.southface.org/   / southfaceinst      / @southface   🔗 Connect w/ BS & Beer Atlanta   / bsandbeeratl   📬 Email: bsandbeeratlanta@gmail.com (Sponsorship inquiries) 🌐 Events & info: https://bsandbeeratlanta.com/ 🔨 About BS & Beer BS* + Beer is a grassroots effort focused on sharing and promoting building science through informal, local gatherings. Chapters across the country bring together builders, architects, engineers, manufacturers, and homeowners for honest technical conversations—usually over a beer. The Atlanta chapter meets once a month and focuses on climate-appropriate, real-world building science. 🏗️ Channel Focus This channel features live talks and discussions on: ✅Building science fundamentals ✅High-performance and sustainable construction ✅Building envelopes, HVAC, and ventilation ✅Moisture management and durability ✅Lessons learned from the field Subscribe for future BS & Beer Atlanta talks and event highlights. https://bsandbeeratlanta.com/ #BSandBeer #BSandBeerAtlanta #BuildingScience #HighPerformanceHomes #GreenBuilding #SustainableConstruction #BuildingEnvelope #HVACDesign #BetterBuildings