Energy Efficiency - I Do Not Think That Word Means What You Think It Does

Matt Risinger sits down with Kristof Irwin of Positive Energy to discuss how mechanical systems, enclosure design, and building science work together in high-performance homes. Irwin explains how HVAC design impacts comfort, humidity control, indoor air quality, and long-term durability, especially in challenging climates. The conversation explores right-sizing equipment, balancing ventilation with airtight construction, and using data-driven testing to verify performance. They also touch on homeowner expectations, evolving energy standards, and the importance of integrating architects, builders, and mechanical designers early in the process.  Huge thanks to our episode sponsor JELD-WEN. Learn more at: https://www.jeld-wen.com/en-us   Watch full episodes of Matt on Facebook, Instagram and Build Show Network. https://www.facebook.com/buildshownetworkhttps://www.instagram.com/risingerbuild/https://buildshownetwork.com/go/mattrisinger Don't miss a single episode of Build Show content. Sign up for our newsletter.