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Building HVAC Science

Building HVAC Science

Written by: Bill Spohn
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Exploring the science, people, and practices shaping better buildings. The Building HVAC Science Podcast dives deep into the technical and human sides of heating, ventilation, air conditioning, and building performance. Hosted by industry veteran Bill Spohn, CEO, and co-host Eric Kaiser, Industry Engagement Manager at TruTech Tools the show brings together decades of hands-on expertise with a passion for advancing the craft of HVAC. With nearly 240 episodes and counting, the podcast features conversations with contractors, distributors, manufacturers, educators, and thought leaders across the HVAC and building science communities. Each episode blends practical knowledge with bigger-picture insights, helping professionals stay ahead of trends, sharpen their skills, and build stronger businesses. Our topics range from: • New tools, technologies, and field practices. • Case studies and lessons learned from real-world contractors. • Building performance, comfort, and indoor air quality. • Industry innovation, workforce development, and the human stories behind the work. Whether you're a technician in the field, a business owner, a manufacturer, or simply curious about the science of how buildings breathe and perform, Building HVAC Science connects you with the knowledge and voices moving the industry forward. * Listen on Apple Podcasts, Spotify, or wherever you get your podcasts. This show is a production of TruTech Tools®, LTD.© 2025 TruTechTools, LTD 057074 Physics Science
Episodes
  • EP252 The Perfection Trap in the Trades With Eric Kaiser (December 2025)
    Jan 9 2026

    Quotes from the episode:

    "Good enough isn't a fixed point. It's a moving target shaped by goals, expectations, and consequences."

    "Perfection can push us forward, but it can also quietly pull us off track."

    "If I delivered what I promised, in the time promised, using the resources promised, that is good enough for me."

    "The real skill is knowing when extra effort adds value and when it just adds ego."

    In this solo monologue episode, Eric Kaiser explores a deceptively simple question: Can good enough be perfect? Drawing on years of experience in the trades, Eric reflects on how deeply perfectionism runs in technical work and how it can both elevate quality and quietly work against efficiency, clarity, and outcomes.

    Using a favorite quote from Dan Holohan, Eric reframes "good enough" not as mediocrity, but as work that meets the right goals, expectations, and time horizons. He walks through practical parameters that define when good enough truly is perfect, including the intended lifespan of the work, customer and regulatory expectations, available resources, and the real consequences of pushing beyond what the situation requires.

    Eric closes by offering a simple but powerful three-question test to evaluate our own work:

    Did I deliver what was promised?

    Was it done in the promised timeframe?

    And did I use the promised resources?

    If the answer is yes to all three, then maybe, just maybe, the work was perfectly good enough.

    This episode was recorded in December 2025.

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    12 mins
  • EP251 Innovation in HVAC: The Quiet Shifts That Matter Most With Bill Spohn (December 2025)
    Jan 2 2026

    Quotes from the Episode:

    "Innovation in HVAC isn't one big breakthrough. It's a series of quieter shifts that slowly change how we work."

    "The future of HVAC depends on the people who measure, verify, and continuously improve."

    "Collecting data is getting easier. Interpreting it well is where the real value lives."

    "True innovation isn't about chasing trends. It's about reducing uncertainty and delivering better outcomes."

    "Homes aren't a collection of parts. They're systems, and HVAC sits right in the middle of that system."

    In this solo episode, Bill Spohn reflects on how innovation in HVAC really happens, not through one flashy breakthrough, but through a series of quieter, incremental shifts that compound over time. Drawing from 250 episodes of conversations on the Building HVAC Science podcast, Bill reframes innovation as a mindset grounded in measurement, feedback, and systems thinking rather than just new equipment.

    Bill walks through key patterns he has observed across the industry, including the shift from equipment-focused thinking to system-level performance, the rise of connected and cloud-based field tools, and the growing role of software in interpreting data rather than just collecting it. He highlights how smart tools, real-time diagnostics, commissioning workflows, and platforms like MeasureQuick have changed troubleshooting, accountability, and profitability for contractors who embrace them.

    The episode also explores major themes shaping the future of HVAC: electrification and heat pumps, dual-fuel strategies, improved load calculations and design software, smarter controls and commissioning, and the rapid evolution of indoor air quality from a niche topic to a core expectation. Bill emphasizes the increasing integration of HVAC with building science, ventilation, moisture, and enclosure performance, and points to contractors who are thriving by treating homes as complete systems. He closes by reinforcing that true innovation is about reducing uncertainty, improving outcomes, and supporting continuous learning, all while encouraging listeners to explore BetterHVAC as a growing nonprofit resource for contractors and homeowners alike.

    This episode was recorded in December 2025.

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    21 mins
  • EP250 Beyond the Equipment: Reflections on 250 Episodes of HVAC and Building Science with Eric and Bill (December 2025)
    Dec 26 2025

    Quotes from the Episode:

    "Good building systems don't start with equipment—they start with a plan and a thoughtful process."

    "Most comfort problems aren't equipment problems; they're building problems we haven't taken the time to understand."

    "If even one episode helps someone take the next step in their career, then it's all been worth it."

    Episode 250 of the Building HVAC Science Podcast flips the script. Instead of Bill Spohn and Eric Kaiser doing the interviewing, TruTech Tools' Senior Marketing Manager Ginny Hebert steps into the host seat to reflect on 250 episodes of conversations about comfort, buildings, and the people who work on them. What follows is an honest, thoughtful look back at what the show has uncovered—not just about HVAC systems, but about how people learn, think, and grow within the industry.

    Bill and Eric reflect on how their understanding of comfort has evolved, especially regarding concepts such as heat transfer, mean radiant temperature, air sealing, and treating the house as a system rather than a collection of parts. They discuss how many "equipment problems" are actually building or design problems, and why taking time to think—really think—about a problem is often the most valuable (and most overlooked) practice in the trade. The conversation highlights how technology, connected tools, and computing power have improved diagnostics, while also reinforcing that good outcomes still depend on mindset and process.

    The episode also looks forward. From normalizing system testing and indoor air quality assessments to improving how comfort is predicted and communicated, Bill and Eric share what they hope will become everyday practice over the next decade. Above all, this milestone episode is a thank-you to listeners, guests, and the broader HVAC and building science community—for staying curious, open-minded, and committed to doing better work for the people who live in the buildings we touch.

    Ginny's LinkedIn: https://www.linkedin.com/in/ginny-hebert/

    Eric's LinkedIn: https://www.linkedin.com/in/eric-kaiser-323a1563/

    Bill's LinkedIn: https://www.linkedin.com/in/billspohn/

    This episode was recorded in December 2025.

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    33 mins
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