Industrial Chimney At Best price In Pune maharashtra India. An industrial chimney is an arrangement for venting out hot gases or smoke from a boiler, furnace or fireplace to the exterior environment. Chimneys for industrial applications are normally vertical, or as near as probable to vertical, to make sure that the hot smoke flow efficiently, drawing air into the combustion in what is known as the stack effect. The room inside a chimney is named as flue.