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Building HVAC Science

Jun 26, 2026

Quotes from the episode:

“Passed inspection is not the same as built correctly.”

“The best inspectors keep learning, because no one person masters every trade, every code, and every overlap.”

“Small defects do not stay small when they are hidden behind walls, ceilings, and warranty paperwork.”

In this...


Jun 19, 2026

Quotes from the episode:

“The tighter your envelope, the more attention you have to pay to ventilation and indoor air quality.”

“The acoustics of the ordinary rarely gets attention.”

“There’s so much good work being done, so much data being collected, and oftentimes it doesn’t leave the hard drive.”


Jun 12, 2026

Quotes from the episode:

“Stop trying to HVAC your way out of bad buildings, and your results will market themselves.”

“The quality work and word of mouth are real when you’re doing building science-backed work with quality staff.”

“Come with problems you’re actively trying to work on and meet others who...


Jun 8, 2026

Quotes from the episode:

“Ducts matter. Nobody cares much about them until something goes wrong.”

“HVAC systems are designed assuming clean, bare sheet metal.”

“Even a small layer of dust can become a mountain range to an air molecule.”

“Think like an air molecule.”

In this episode, Bill speaks with Dan...