Which is better, air water heater or solar water heater?

First, the main heating energy sources are different.

The air energy water heater uses air energy, that is, the free heat energy in the air is heat energy; Solar water heaters use solar energy, that is, the heat radiation energy of the sun is used as heating energy.

Second, the adaptability to the external weather is different.

Solar water heaters are seriously affected by the weather and can only be used on sunny days. In case of rain and snow or at night, you can only rely on electric auxiliary heating (the cost of electric auxiliary heating is very high), and the water heater may freeze in winter. But air-powered water heaters are different. When working, it is not affected by the external environment, and it can run ideally in any weather.

Third, the installation site needs are different.

In order to absorb sunlight, the solar water heater needs to be installed in a special place, usually on the outdoor roof, and it occupies a relatively large area. Air-energy water heaters occupy a relatively small area, especially after a special "slimming" all-in-one machine, which can be installed not only in balconies, air-conditioned spaces, bathrooms and other places, but also in living rooms.

Fourth, the degree of security is different.

Because solar water heaters are generally installed on the roof, they may be blown down by the wind or cause lightning strikes in severe weather such as strong winds and heavy rains. However, air energy water heaters are generally installed indoors, so there is no such safety hazard and the safety level is relatively high.