The duration of contact between the alumina and the hot gases-is extremely small: it may vary from a fraction of a second to several seconds. In a fraction of a second, the trihydrate particle is raised to a high temperature and is dehydrated more or less intensively according to the temperature of the gas.
A wall outlet is a wall-mounted electrical receptacle that provides a point for consumers to plug in various electronic items. Wall outlets provide flexible access to electricity for use with a wide variety of components. Some come with special features designed for specific applications, like devices used in wet environments.
Direct-venting or side wall vent chimney and flue systems are a method of venting the exhaust gases from a heating appliance directly out through the side wall of a building while eliminating the need for a vertical chimney of any sort.