Abstract: The present invention relates to a water magnetizer including a permeance member and a cooking recipient. The permeance member consists of two parallel disks spaced apart each other by a plurality of partitions located along the periphery of the disks, such that there is clearance between the two parallel disks. The permeance member is placed into the cooking recipient that is charged with water. Then, the cooling recipient is placed onto an electromagnetic heater. When the electromagnetic heater powers on, inner coils of the electromagnetic heater regularly vibrate at high frequency to change the direction of electric current and then induce a swirled magnetic field in the clearance. The water would be boiled by a lot of heat generated from electron movement in the induced magnetic field.