This smart device not only boils water but also keeps it warm. The smart design of the body retains heat and preserves the temperature of the water intact, keeping the external stainless steel body cool enough to touch whilst providing efficient heating to save energy.  With its smart features and usability, this 18-38 liter water boiler can be used for many occasions.      Keeping it hot!  more than just a thermos. The vacuum inner lining prevents heat transfer for keeping the temperature of the beverage intact and with its temperature knob, you can control the exact temperature you desire.