Space heater is filled and compressed with Ni/Cr heat element, ceramics, and Mgo element. This product has the fixed terminal pin at both sides, therefore, maximization on the heat conduction of insulation products and the heat conductivity are possible. Basically, space heater uses tube, and it can be used in various type of conditions. Furthermore, heat element's outer frame is made of thin steel, so it can be easily modified to provide an easier installation, and its mechanical strength provides a strong performance against the temperature fluctuations. This product is also designed to protect the heat element from oxidization by providing closed ends, and it can prolong its life-cycle.