In this episode of Building HVAC Science, Eric Kaiser and Bill Spohn are joined by a special guest who’s carrying on the Spohn legacy—Billy Spohn. The trio recaps their experience at the 2025 National Home Performance Conference in New Orleans, the largest in the event’s history, with over 2,800 attendees. They reflect on the continued convergence of HVAC and building performance disciplines, and how this cross-pollination is finally taking root at scale.

From highlights in the expo hall, including interest in the new RetroTec Air Tracer and the Testo 860i thermal imager, to insightful sessions on whole-home solutions and ventilation maintenance, the conversation underscores the critical value of collaboration and continuing education. Bill shares a touching moment from his “Faces of Energy Efficiency” interview, revealing how this conference shaped his path and even inspired the founding of TruTech Tools. The episode closes with admiration for industry legends like John Tooley and rising influencers like Genry Garcia, who exemplify the power of blending theory, tools, and field application.

Whether you're a veteran or a first-time attendee, this recap will inspire you to think holistically about comfort, health, and energy use in buildings—and maybe even join the community at the next show in Columbus, OH, in 2026.

The next NHPC in 2026: https://building-performance.org/events/national/

Our lineup of Building Performance and HVAC tools:

https://trutechtools.com/all-categories

LinkedIn:

https://www.linkedin.com/in/eric-kaiser-323a1563/

https://www.linkedin.com/in/billy-spohn-jr-a06201a3/

https://www.linkedin.com/in/billspohn/

This episode was recorded in April 2025.

EP217 Where Building Science Meets HVAC: Insights from New Orleans (April 2025)