This question must be considered holistically to know the answer.
From an energy saving perspective, solar water heaters certainly consume less electricity; but there is a prerequisite, that is, there must be sufficient sunshine on rainy days and in winter, additional heating pipes must be installed. used for heating. But the total electricity cost is cheaper than traditional electric water heaters.
From a maintenance point of view, the maintenance cost of traditional water heaters is low. Not to mention typhoons and hail in such unstable weather. Normally, the energy of solar water heaters must be supplied by a photothermal converter. be replaced every four years, otherwise the conversion efficiency will be too low and the water will not meet our needs.
Otherwise, air-to-energy water heaters would not have been so popularWere on the market a few years ago! However, I personally recommend purchasing a traditional water heater as it is relatively safer. If you are worried that the heating tube may explode while you are taking a shower, causing an electric shock, you can wait until the water boils and then turn on the water heater. heating switch. Pull it down to avoid electric shock accidents. These are my life experiences with electrical appliances, you can try them too.
At the same time, I personally think that air-energy water heaters are not very hygienic. Think about it, is it enough to transfer energy from heated air to water? The air is already very polluted. Do you think heated water is always hygienic?