Choose six standards
First, the durability standard: the material, technology and process of the solar water heater are different, and the service life is also different. It has been used for 3 years and 5 years, and it can be used for more than ten years. As a hot water supply facility on the roof, the new and old solar water heaters do not affect the aesthetics of the living room, and do not have to worry about the replacement. Therefore, when you buy, you should consider the long-term, performance, specifications, and functions must be thoughtful. Otherwise, after three years, the solar water heater will not be hot, the function is backward, etc., change it, it is not worthwhile, no change, it is uncomfortable to use. Therefore, when you start to buy, you must measure it comprehensively, and avoid the situation of regretting after buying it for a short time.
The second is the heat collection standard: the vacuum tube is the heart of the solar water heater. The strength of the vacuum tube heat collecting capacity is an important indicator to measure the performance of the water heater, and is also an important factor affecting the heat supply of the water heater. At present, the three high-vacuum tubes on the market use the patented three-high coating technology, the vacuum degree reaches 10-4pa, and the performance is hardly attenuated after ten years. Inferior vacuum tubes are used as the standard for thermos bottles. The degree of vacuum is only 10-1 - 10-2pa. After three or five years, neither heat absorption nor heat preservation, only the role of water.
The third is the heat preservation standard: the water storage tank is the “hot water warehouse†of the solar water heater. Its performance is mainly reflected in the heat preservation effect: the good insulation layer is made of imported raw materials, and the automatic constant temperature high pressure quantitative foam insulation process is High temperature curing treatment, high insulation performance and stable and long-lasting. Inferior insulation layer foaming is uneven, and performance deteriorates sharply after two or three years. Good solar insulation materials and advanced insulation technology can ensure good insulation effect. After one night, the hot water temperature drops less, and there is still hot water overnight.
Fourth, the scale standard: ordinary water heaters can not meet the hot water demand of modern households in terms of hot water volume, intelligent control level, operating cost, and water safety. The ideal water heater should not only solve the problems that ordinary solar water heaters, gas and electric water heaters can't solve, but also meet people's demand for large amounts of water, intelligent and free hot water.
The fifth is the cold tolerance standard: the winter sun is weak, the illumination time is short, the temperature is low, the temperature difference is large, and the hot water demand is larger, which is a critical period for testing solar energy. In the past, due to the limitations of technology, winter and rainy days are not easy to use. Now with the invention of the interference coating technology, the heat collecting performance of the three high vacuum tubes is greatly improved, coupled with the application of the automatic constant temperature high pressure quantitative foaming heat preservation process (subject to high temperature curing treatment), and the thorough and strict outdoor pipeline insulation and antifreeze measures. It is a reality that solar energy can be used and used in rainy and rainy days. “Hot is the last word†becomes the golden rule for measuring the eligibility of solar energy. In fact, the demand for hot water in the family is more obvious in winter, especially when the weather is cold, there is ample economic hot water is the dream of many families, and this dream is completely achievable. When selecting a solar water heater, in addition to focusing on the heat collection performance and heat insulation capacity of the product itself, it is necessary to see whether the installation is standardized and the service is perfect.
Sixth is the standard of accessories: solar water heater is a system for hot water supply. A good host also needs a good auxiliary machine and accessories to achieve good results. The quality of the original accessories of solar water heaters should be matched with the mainframe, not only in terms of use effect and life, but also problems can be solved in a timely and effective manner. Some merchants or users in order to save money and trouble, just choose a variety of accessories to use, the results of small problems continue to use, and some have caused huge losses, find someone can not find. A user in the Northeast lost more than 100,000 yuan because of the use of inferior accessories. The large icicles that leaked water damaged the neighbor's Mercedes-Benz.
Interior Silicone Sealant,Exterior Silicone Sealant,Silicone Sealant
Neutral Silicone Sealant,Professional Silicone Adhesive Co., Ltd. , http://www.chsiliconesealant.com