Quick Ship Fire

I still remember the first time I really understood why duct detectors matter. It wasn’t from a manual or a code book. It was standing on a noisy rooftop, watching smoke get pulled straight into an air handling unit faster than anyone expected. That moment stuck with me. HVAC systems don’t wait. Smoke doesn’t politely rise and stay put. It moves fast, and sometimes invisibly, through ductwork long before people even smell it. That’s where this whole conversation really starts. Smoke doesn’t behave the way people think it does Honestly, most people picture smoke alarms reacting when a room fills up with smoke. That’s only part of the story. In real life, smoke often gets sucked into ductwork almost immediately, especially in large commercial buildings. Air handlers are powerful, and once smoke enters that system, it can spread everywhere. I’ve seen offices, hospitals, and schools where smoke traveled floor to floor in minutes. That’s why duct detectors exist, and why they’re plac...