The Build Show Podcast
HVAC 101
Apr 11, 2025
Matt welcomes Travis Brungardt, a licensed master mechanic and host of Prairie Sun & Timber, for a deep dive into HVAC fundamentals. They emphasize the necessity of accurate manual J load calculations over outdated methods. The duo discusses the benefits of rigid metal ducts for superior airflow and advises against unconditioned attic runs. They debate two-stage versus variable-speed systems and suggest ductless mini-splits for expansions. With practical tips on user education and maintenance access, they stress that a well-designed HVAC system enhances energy efficiency and indoor comfort.
46:58
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Quick takeaways
- Accurate Manual J load calculations are essential for determining proper HVAC system sizing, avoiding inefficiencies from relying on outdated rules of thumb.
- Choosing rigid metal ductwork over flex duct enhances airflow efficiency while ensuring better indoor air quality and reducing noise levels in HVAC systems.
Deep dives
Getting Back to Basics in HVAC
A focus on foundational knowledge in HVAC is essential for builders and homeowners alike. Understanding fundamental aspects like the differences between flex duct and rigid duct can significantly impact system performance and efficiency. The conversation emphasizes that not all builders have decades of experience, making it crucial to revisit these basics to provide a better foundation for HVAC installations. Moreover, the importance of distinguishing between various types of equipment, such as single-stage versus two-stage systems, is highlighted as key to optimizing comfort and efficiency.
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