thermos function (analog) in general is to store the water remains in the hot conditions for a relatively long time. Physical design of the flask a unique interior, making the water temperature can survive to remain in relatively hot conditions long enough. This method is also applied to the electric thermos products. The difference lies in the condition of the stored water is boiling because it is supported by a range of 40 Watt power consumption mode keep warmed. In addition serves to store water remains in a state of relative boiling, electric thermos also features a boil water (boiling) automatically. This feature, which was originally "just" work when the water temperature changes in a thermos, now made extra special buttons to boil water separately. Thus, the user can instantly boil water without mixing water in a thermos with water dingin.Thermos electricity has more advantages over electric teapot of hot water in terms of quality. In addition to saving water can remain in a state of relative boiling for a long time, electric thermos has a water storage container is relatively larger (max. ± 3 liter) than the electric teapot (max. ± 1 liter). In addition, the overall physical devices much more support to withstand the heat generated temperature of boiling water in a very long time. Because it has a shelf life of hot water volume is large enough, the electric flask equipped with a manual pump to remove water from inside the container. This feature is very helpful manual pump facilitate retrieval of hot water in a thermos container. So, we no longer need to open the cap, lift and pour hot water in it into a glass.