Abstract: A method for controlling a water heater is provided. The method includes: controlling operation of a blower when a first condition is satisfied; and controlling an air outlet to be partially or fully opened according to a first parameter or a first instruction. Furthermore, a device for controlling a water heater is provided, including a processor and a memory having program instructions stored thereon. When the program instructions are executed, the processor performs the method for controlling the water heater. Moreover, the water heater is provided, including a housing, a blower, an air-out channel, a heating part, and the device for controlling the water heater.

Abstract: A refrigerator comprises a case defining a storage compartment, and at least one door assembly. Each door assembly comprises: a door, arranged in front of the case and used for opening or closing the storage compartment; and a translation means, arranged on the top of the case. The translation means comprises: a lateral slider, directly or indirectly mounted on the case and capable of moving relative to the case along a lateral direction of the case; and a longitudinal slider, mounted on the lateral slider and capable of moving relative to the lateral slider along a front-and-rear direction of the case. The door is fixed on the longitudinal slider to translate with the longitudinal slider along the front-and-rear direction of the case and translate with the lateral slider along the lateral direction of the case, so as to open or close the storage compartment.