Electric hot water boiler heating is an efficient, flexible, and environmentally friendly heating method, suitable for various occasions such as households, commercial buildings, industrial sites, public facilities, and greenhouse agriculture. When selecting and using, it is important to pay attention to some key factors to ensure the optimal balance between heating and energy-saving effects. Meanwhile, with the advancement of technology and the maturity of the market, the performance and efficiency of electric hot water boilers are constantly improving, and they are expected to be applied and promoted in more fields in the future.