Note 1: determine the water consumption of the solar water heater.
Before choosing and buying, we must comprehensively consider our own actual situation, according to the number of family permanent residents, per capita water consumption, etc., to calculate the total amount of hot water a day, and then choose the most suitable solar water heater based on these parameters. In solar water heater work depend on absorb sunlight, rainy day amount of hot water will have different degrees of reduction, therefore, you should select the product that was twice daily water, will have a hot water thermal storage to a sunny day, rainy day, or photoelectric dual-purpose solar water heater of choose and buy, make sure all the year round at any time using hot water. Second, but also consider the use of water, such as spray or bath water. In short, we must consider the purchase of solar energy according to their own long-term or comprehensive interests.
Note 2: Pay attention to the selection of collector and other accessories.
Once the consumer has decided on the volume of the solar water heater of their choice, the next thing to consider is the type of collector and other accessories. The collector is a key device to convert the radiant energy of the sun into heat energy. There are four types of common solar collectors on the market: flat plate type, vacuum tube type, hot water tube type and U tube type. Among these four types, vacuum tube collector has the advantages of frost resistance, fast start, good heat preservation, no scaling, high pressure, good heat resistance, easy installation, reliable operation, and is currently the leading type. The other three types also have their own advantages, and consumers should choose them reasonably according to their actual needs. In addition to the collector, you should also carefully choose the automatic water cut-off device, water temperature and water level indicator and other components, see more and compare, in order to choose the most suitable solar water heater for your own.
Note three: combined with the characteristics of family building structure selection.
With the acceleration of urban modernization and the increasing number of high-rise buildings, users who live in high-rise buildings should choose solar energy products that are easy to install and fashionable in appearance.
Note four: according to the geographical environment and climatic conditions to choose.
If it is in Guangdong, Guangxi and other southern areas, then, it is more suitable for large-capacity vacuum tube solar water heater, its advantages are high cost performance, high thermal efficiency, and maintenance free, long service life. If it is the user of the Yangtze River or the Yellow River basin, because the winter will freeze, so suitable for the choice of full effect heating, full effect insulation, full effect intelligent heat full effect vacuum tube type solar water heater, has a very good freezing resistance function, and the cost performance is also very high.