Abstract: A heater comprises a cast casing, a heating tube and a water tube coiled on the heating tube imbedded in the cast, wherein the heating tube is U-shaped and has two electric terminals for connecting to the power, and the water tube has an inlet and an outlet extending out of the casting. Because the heating tube and water tube are imbedded in the casting, and there are fillings that fully fill the interstice between the heating tube and the water tube, the casting has good heat accumulation ability, which allows the heat generated by the heating tube to be highly concentrated to achieve high heat transfer efficiency.

Abstract: A coffee machine includes: a base, a basal body locating above the base, a coffee pot located above the basal body, a first coffee exit located in the bottom of the coffee pot, a coffee outlet located under the first coffee exit, the coffee outlet includes a receiving water base, a top lid; a first pin joint part and a second pin joint part respectively located at both sides of the first coffee exit, one end of the receiving water base pivotally joins the first pin joint part, another end of the receiving water base extends to the second pin joint part and outside of the bottom of the coffee pot, a second coffee exit is beside the another end of the receiving water base, a third pin joint part is between the second coffee exit and the second pin joint part.

Abstract: A coffee maker disclosed in the present invention at least comprises a supporting device, a brewing device, a heating device, an insulated carafe containing magnet, a magnetism-detecting device and a control device. The supporting device is used for supporting a carafe. The heating device is used for providing the hot water for brewing the coffee for the brewing device, and it can heat the carafe supported by the supporting device selectively. The insulated carafe containing magnet mounted detachably on the supporting device. The magnetism-detecting device is used for detecting the carafe supported by the supporting device whether it contains magnet or not, thus judges the carafe is an insulated carafe containing magnetic or not. The control device is connected to the magnetism-detecting device and the heating device, it estimate whether it need to heat the carafe supported by the supporting device or not based on the detecting result of the magnetism-detecting device.