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What is Sanhuan brand solar energy**.
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China's solar water heater product certification system has been officially introduced. The company's products have been strictly tested and proved to meet national standards, and can only be certified after passing the factory audit of the certification center and the subsequent annual supervision and inspection. In the future, consumers can rely on the "Golden Sun" standard to purchase and use solar water heater products with confidence.
The first companies to be certified are:
Shandong Huangming Solar Energy Group****.
Shandong Linuo Rite New Energy****.
Beijing Tsinghua Sunshine Solar Energy Equipment Co., Ltd.
Jiangsu Province Huayang Solar****.
Beijing Tianpu Solar Industry****.
Zhejiang Meida Solar Energy Industry****.
Lianyungang solar rain water heater manufacturing ****.
Beijing Four Seasons Muge Solar Technology ****.
Beijing Institute of Solar Energy ****.
Jiangsu Sangxia solar energy****.
Qunsheng Group****.
Zhejiang Tianmu Sacred Industry ****.
Hebei Sanhuan Solar****.
Shandong Yijia can be solar.
Beijing Yinghao Sunshine Solar Energy Industry****.
Shandong Sangle Solar****.
Shandong Linuo New Materials****.
I guess there is nothing wrong with these brands.
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Let me tell you. Sanhuan Solar is not very good. Huang Ming is the leader, 100 million Canon old 2Tsinghua Sunshine 3, Linuo Ruite 4... Better.
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What is the basis for who rated the top ten famous brands of solar energy, you are just talking nonsense.
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Solar water heaters are generally responsible for after-sales by local dealers, unless it is indicated that the national warranty, then the general warranty period within the unified after-sales service, if the warranty period is exceeded, you can contact yourself, because you need to charge! You can look for it on 58, or look for a local store selling solar water heaters!
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A water heater is long enough for 12 years! After all, if you are exposed to the wind and rain outside, even a brick is about to be weathered.
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Cost of inner tube plus coating: yuan.
Outer tube: 4 yuan.
Vacuum plus other expenses: 4 yuan.
Primary wholesalers; The price is increased by 5 yuan.
Secondary wholesaler markup: 12 yuan.
Retail store surcharge: 20 yuan.
In the end, it is probably in your hands, the color of the ordinary tube [cyan black] is about 55 yuan, the three executives [cyan blue] is 60 yuan, and the purple gold tube [golden red] is 65 yuan. Distinguishing method: It can be clearly identified with the naked eye.
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The ex-factory price of a single heat collector tube is between 12-18 yuan, which is the manufacturer's batch ** (not the retail price), if you go to the dealer alone to buy the tube, they are afraid to sell about 40-50, generally there is no separate sale of the tube, unless you go to the manufacturer to purchase in bulk.
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Are you talking about the market price or the ex-factory price, the ex-factory price is different from company to company, and the amount you need is different, the price of our company's internal employees is about less than 20 yuan for a tube, but I heard that the retail price is about 50 to 120 yuan. The purchase price of large companies is about less than 17 yuan.
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Ways for consumers to distinguish the type of vacuum tube:
1. To the naked eye, the appearance of the ordinary tube and the three executives is dark blue, and the appearance of the purple gold tube is dark black red 2, in the sunlight from the inside of the tube, the ordinary tube is blue, the three executives are red, and the purple gold tube is very red (as shown in the picture above) The purple gold tube is the highest level vacuum tube on the market at present, with the characteristics of fast heating, high temperature resistance, anti-aging and other characteristics Features: The absorption ratio of the purple gold tube is increased by 15%, the emission ratio is reduced by 30%-40%, the thermal efficiency is high, the temperature rises quickly, and the thermal efficiency is super high under the same light conditions. Remarkable anti-freeze and explosion-proof performance.
1. Ordinary tube: aluminum ion coating technology.
2. Three executives: copper ion coating technology.
3. Zijin tube: copper ion coating technology, the surface is purple-gold, because we all know that the color of purple gold can absorb short-wave light in the air more, and the heat content of short-wave light is high, so the absorption effect is better!
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This is the sign of a loss of vacuum, the tube is broken and needs to be replaced. You can touch the outer wall of the vacuum tube, and the temperature of the outer wall without discoloration must be lower than that of this discoloration. He doesn't keep warm anymore.
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Obviously, black is the color with the best absorption rate.
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At present, there are many styles of solar vacuum tubes, don't listen to the various names and names of various manufacturers, simply put, it is a cold tube or used to be called three executives.
However, there are two points to pay attention to: one is how to distinguish a good tube, a weight, b look at the light transmittance of the vacuum tube, c knock, listen to the sound, a good brittleness, d vacuum. In addition, pay attention to the length of the tube, generally 160 180, 210 is optimal.
2. Decide according to the water quality and climate conditions of your home. If the water quality is poor or unclear, you must choose a heat pipe that does not run water. Cleaning up the scale is ten times harder than cleaning a kettle.
And, of course, there are condensers for rainy days in the south.
It's really hard to say how much a piece is, because the tube brand is different and the process is different, and it may be 2-3 times worse.
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Zijin Guan, the three executives, are all very good, and the ordinary ones have basically been eliminated.
**15 or so, depending on the place.
The god is very good, you can go to the local area and ask.
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Zijin tube is slightly better, 15-20 yuan is the factory. The market ** is 50-80 yuan.
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In the market, it is generally believed that Linuo heat collector tubes are of high quality, and it is not clear if the 58*18 single retail is not clear, so you can ask in the store. However, many tubes are universal, and if you think it is too high, you can buy other brands. Zijin tube, just a concept hyped by merchants, is essentially a kind of three-target tube, but there are subtle changes in the composition of the coating layer that make the color of the inner tube different.
In fact, your purchase of high-efficiency tubes can fully meet your needs.
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UTLE vacuum tube, produced by Huangming, but ** is relatively high, you can go to the local Huangming franchise store to ask.
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Don't use Zijin tubes, the air resistance is not good, and if you are exposed to air for more than half a year, it will definitely change color.
The most economical and practical is the three executives (three high blue tubes and three high purple gold tubes are acceptable).
Regular manufacturers, ** between 12 and 15 yuan.
Miscellaneous manufacturers, ** have 7 yuan a piece, we have never dared to buy, nor dare to use.
The cheapest one I've ever used is the root root, and the effect is okay.
However, the air sun resistance is not good, and it is not as good as the three executives.
Since that time, all the vacuum tubes purchased by our factory are three executives for 14 yuan.
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This suggestion to find their after-sales service team, ask professional after-sales personnel to come to the door to find out what the reason is, Taibiao's after-sales service is still very good.
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The performance is ok and the service is good. Taibiao should say that the cost performance is the highest, ** more affordable, you can enter the store to ask.
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The merchant price is 3600 yuan, I think it's too expensive, and it's not very easy to use after a year.
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I have been using the brand of Taibiao Solar, which is very affordable. Later the service was in place.
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Dongying solar energy maintenance door-to-door service fee is 50 yuan, details 0546-8222799
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The cost of solar maintenance is not fixed, depending on the actual maintenance project and the cost of maintenance.
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