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Question:

How to choose to buy solar water heater?

The house is ready to install a solar water heater, but do not know what kind of good do not know how to distinguish between bad? Here's a home called "God" brand, do not know how this brand? Want to know friends with us!! thank you!.....

Answer:

8 purchase other related accessories, such as automatic water supply device, water temperature display device, electromagnetic valve, for these devices should be chosen carefully, appears to be some advanced features, but too many components, the reliability is not high, it is easy for a long time, when the choice must ask the service life and the warranty period.9 to buy a good home solar water heater, the installation process should pay attention to whether the installation of a solid support, all the screws and joints is the tight upper and lower water pipe installation location is reasonable, whether the water heater itself has reinforcement measures and so on. In addition, the water supply pipe must be installed in the check device to prevent hot water backflow, into the cold water pipeline.
6 in the purchase should also take into account the number of resident population in order to determine the size of the purchase of domestic solar water heaters. Generally, the standard of 40 liters per person is appropriate. In addition, many products of the nominal water capacity was calculated using each vacuum tube and the water tank capacity capacity added, but in fact, the water outlet of the water heater and the vacuum pipe of the water is not put out of use, users can really use the water just into the water between the water outlet and an overflow port so, at the time of purchase should ask the seller, their nominal capacity refers to the total water capacity or actual capacity of water use, the difference between how much.
3 should also pay attention to the vacuum pipe between the pipe spacing, the general center distance between the two tubes should be around 70mm.4 home solar water heater bracket design should be reasonable, should have enough strength and stiffness to ensure adequate bearing capacity. In some areas of daily wind, especially in coastal areas, in the purchase of domestic solar water heaters should also pay attention to the product in the design of wind resistance.
At present, the domestic solar water heater market sales of a wide range of solar collector, in accordance with the type to distinguish, can be divided into the vacuum tube and the plate; in accordance with the structure of distinction can be divided into integral and split; in accordance with the production process division, can be divided into pressure and non pressure. At present, most of the domestic solar water heaters sold in the market are mostly non pressure vacuum tube type solar water heater. When we buy domestic solar water heater, we should pay attention to the following points:

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