When selecting the power of an electric heating stove, it must be calculated based on the thermal load of the heating room. Different building structures, room heights,采光 areas, and room locations have varying thermal loads. We recommend that energy-efficient buildings use a range of 13-15㎡/KW; for ordinary apartment buildings, use 10-11㎡/KW; for villas and bungalows, use 8-9㎡/KW; and for rooms with poor sealing conditions, heights over 2.7 meters, or frequent occupancy, reduce the heating area per kilowatt of the electric heating stove accordingly.
Many users believe that the lower the power of an electric heating boiler, the lower the heating costs will be. However, the opposite is actually true. A slightly higher designed power for an electric heating boiler does not increase operating costs during the heating season; instead, it saves on operating costs. It's common for users to have electric heating boilers with power that doesn't meet the room's heating load requirements, resulting in the boiler not shutting off or rarely shutting off, and failing to reach the desired heating temperature. It's important to properly adjust the supply and return water temperature difference of the electric heating boiler.
The current electric boiler (electric heating boiler) hot water heating systems can be divided into three main types, with the following supply and return water temperature differences: In low-temperature hot water radiator heating systems, the ideal electric boiler (electric heating boiler) supply and return water temperature difference should be between 20-25°C; in low-temperature hot water floor heating systems, the ideal electric boiler (electric heating boiler) supply and return water temperature difference should be between 5-10°C; and in fan coil heating systems, the ideal electric boiler (electric heating boiler) supply and return water temperature difference should be between 4-5°C. Appropriately adjusting the supply and return water temperature differences can improve the heat transfer coefficient, increase efficiency, and significantly reduce the operation costs over the entire heating period.