With 25 years of experience in energy-efficient mechanical systems for green buildings, Galen Staengl of Staengl Engineering is no stranger to Passive House design. In this video, Galen shares his insights into passive building system sizing, customized approaches for diverse US climate zones, and practical strategies to cut down HVAC system size and costs. He explores how to simplify HVAC system design while upholding comfort and indoor air quality standards. Whether you're a designer, architect, or industry professional, this video has numerous practical takeaways.