All chimneys are effectively produced in the same fashion. The by-solutions on the fire exit upward by convection in the chimney flue. This is mostly generally known as the fire's draft. When compared to carbon dioxide on a weight-of-agent foundation, bromochlorodifluoromethane (Halon 1211) is at least 2 times as helpful. https://josuejbjrj.myparisblog.com/22083035/the-definitive-guide-to-fechine-fire