1.1. Power and cooling are required. The water pump can use an ordinary aquarium pump or a gear pump, which provides higher water pressure and operates on a 24V power supply. Alternatively, tap water can be directly connected via a hose to the copper pipe without a pump. 2.2. During operation, a fan must blow from to bottom to cool the resonant capacitor, magnetic ring, and other components. 3.3. Caution is required when using a switching power supply. performance power supplies typically have a slowstart feature, meaning the output voltage rises gradually upon activation. However, if the preconnected induction heating circuit starts when the voltage reaches only 10V, the insufficient starting voltage may cause both MOSFETs to turn on simultaneously, activating and heating the components. 4.4. When using a 40mmdiameter heating rod for iron or iron pipe objects, the diameter of the heated object should not exceed 10mm. For a 50mm heating rod, the diameter should not exceed 20mm, otherwise, excessive current may damage the circuit. An ammeter can be connected between the power supply and the heater driver board to monitor the current. 5.5. For nonheating applications or when heating titanium and aluminum materials, the heating coil should be smaller and as close as possible to the diameter of the heated object. 6.6. When heating a crucible, place ceramic fiber paper made for clay pots at the bottom and around the graphite crucible to ensure even heating. Uneven heating may cause the crucible to crack. This also blocks air and insulates the graphite, extending its lifespan and allowing higher temperatures.