Regular maintenance and inspection of explosion-proof electric heaters are crucial for extending their lifespan. Before use, the water valve should be opened to ensure the drum is filled with water medium, with the pressure not exceeding the working pressure before power supply. After winter, when the explosion-proof electric heater is no longer needed, the water in the drum should be drained promptly to prevent freezing and damage, which could affect subsequent use. For long-term use, the power should be disconnected, and the water and drum should be emptied. Explosion-proof electric heaters are designed with reasonable air volume and temperature increase. The power of the electric heater is calculated based on air volume and temperature rise. It is not advisable to use excessive air volume and temperature rise, as this can directly lead to an overlarge power consumption. The surface of the electric heater should be electrified. Most factories use electric heaters only to maintain the warmth of the outlet pipes, not the surface warmth of the electric heater itself. Comparative data shows that adding an insulating layer to the surface of the electric heater can reduce energy consumption by 5% to 10%. The long-term operation of the circulating fan can achieve significant energy-saving effects, and the insulating layer should also be added to the pipe insulation layer and the air heater. Reducing the pressure loss of the electric heater itself. For the air to be heated, there will be pressure loss when it passes through the electric air heater. Improvements to the structure of the electric air heater can reduce pressure loss.