Hidden heat: Humidity, dew point, and why air conditioning is about more than cooling

In this episode of Taking the Temperature, Jorg flips roles and interviews Jamie and John about the “middle child” of HVAC: humidity. They unpack dew point, dry bulb vs. wet bulb, relative vs. absolute humidity, why 25°C can feel amazing or miserable, and how air conditioning, dehumidifiers, evaporative coolers, and chilled-water systems really manage hidden heat. Along the way, they share real-world stories—from fogged glasses and soggy shirts to freezing supermarkets and damp basements—and explain how poor humidity control can lead to discomfort, inefficiency, and even mold inside your walls.