Product quality is the core issue in choosing electric heaters. First of all, you need to see whether the product you want has passed the national electrical product certification (Great Wall certification), and on this basis, you need to consider it in many aspects. Take the oil heater as an example, we should pay attention to the thickness of the steel plate of the fuselage shell (generally 0.5-0.6mm, which is thin and easy to deform), the material of the internal wiring (silicone rubber wire is the best), the heat transfer oil (which needs to be refined at high temperature, so it has high thermal conductivity and stability) and the quality of other accessories. If you use it in the bathroom, you must consider buying an electric heater with excellent waterproof performance. Products without waterproof function must not be used in the bathroom to avoid accidents. ?
Room area is another important issue that should be considered when buying electric heaters. We should buy electric heaters with different power according to the room area. Generally speaking, 900W is suitable for12m2 room, 1500W is suitable for15m2 room, and 2000W is suitable for 20m2 room. In addition, the choice of power is also related to the insulation of the house, which is also a factor to be considered. ?
People often encounter such a problem: will the heating value of electric heaters with the same power be the same under the same power-on time? This involves an important technical index of electric heater: thermal efficiency. Generally speaking, thermal efficiency is the ratio of electric energy to thermal energy, and the thermal efficiency of electric heaters directly represents the technical level of products. Ordinary household electric meters have limited capacity and limited shell, which generally require electric heaters to heat up quickly and have high thermal efficiency at a certain power. At present, the thermal efficiency of some products on the market can reach 97%, which can be said to be quite high. ?
The most concerned factor is of course the price of the product. Due to the different raw material selection and processing technology, the product price difference is still large. Some electric heaters use high-quality raw materials and advanced production technology, so the cost is higher, and the price may be slightly higher than other similar products. But if the safety and service life are greatly improved, it is still worthwhile. ?
In addition, the after-sales service, power consumption (some electric heaters have constant temperature automatic power off function) and additional functions (some electric heaters have humidification function and drying function) should also be considered before buying.
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