Matt welcomes fellow Build Expert, Travis Brungardt, back to the studio for a “back to basics” conversation: HVAC 101, which includes foundational concepts, practical advice, and common mistakes in residential HVAC systems. Emphasizing the importance of proper planning, they stress starting with accurate manual J load calculations to avoid outdated “rules of thumb” like sizing based solely on square footage. Matt & Travis also break down the crucial roles of manuals D (duct design), S (equipment selection), and T (terminations). Both champion rigid metal ductwork for optimal airflow, using minimal flex duct only at final connections to reduce noise. Also, they warn against unconditioned attic duct runs and advocate for dedicated return ducts in each major room to maintain balanced airflow and comfort. The conversation explores the pros and cons of two-stage and variable-speed systems, promotes ductless mini-splits for additions, and strongly advises against zone damper systems due to reliability issues.They also highlight the importance of user education: set thermostats and forget them, avoid "fan on" mode, and design systems for future maintenance access. Matt and Travis remind builders that a well-designed and properly installed HVAC system not only improves energy efficiency but also delivers lasting comfort and better indoor air quality. To see a practical application of the strategies outlined in today’s episode, check out Prairie Sun & Timber, a Build Original® series hosted by Travis.Thank you to episode sponsors Pella & Huber! Learn more at pella.com and huberwood.com.Find Travis on the Web:Build Original Series®: Prairie Sun & TimberTravis’ Build Show Videos: https://buildshownetwork.com/go/travisbrungardtTravis’ Instagram: @catalystbuiltTravis’ Website: https://www.catalystbuilt.com/Find Matt and The Build Show on the web:Build Show Videos: https://buildshownetwork.com/go/mattrisingerInstagram: @risingerbuild and @thebuildshowYouTube channel: https://www.youtube.com/@buildshowWebsites: https://risingerbuild.com/ & https://buildshownetwork.com/
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