What is Fire? In order to have a fire, there must be three elements: Fuel: something which will burn Heat: enough to make the fuel burn Oxygen: air All three elements must be present at the same time to have a fire. Fire will burn until one or more of the elements is removed, then will go out. Back to How Does It Work

HOW DOES IT WORK?       FAQs How Do Ionization Smoke Detectors Work? Why does smoke come from a fire? How do multi-class dry chemical fire extinguishers work? How Do Photoelectric Smoke Detectors Work? more ...