1 Electromagnetic heater. It does not need water to dissipate heat, has good thermal stability, safety, easy to use, easy to carry, and can be used outdoors and indoors. Maximum output power: ≤1.5kW: without water cooling, the steel can be heated to above 800°C in a few seconds, the cost of consumables is lower, the weight is lighter, the handling is convenient, and the handle is small.