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Read a lot of brand-name solar water heater quotes, easily 5,6 thousand, I feel really expensive. With solar energy, it is natural to save energy and money. Too expensive to buy, the price is too bad.
First of all, in line with the spirit of the poor, we visited more than a dozen brands of solar water heaters. Then listen to the brand of solar water heater dealers attack each other's shortcomings, secretly happy. Later, they all reported the other's reserve price. This is the first purchase.
After some time understanding, it is basically simple to know the composition of solar water heaters. Just like computers are now compatible, they basically belong to the assembly. Just like the 8 solar energy brands under the Qinghua brand in Fuzhou, aside from the trademark, almost the same price, the price is much worse. One part of the solar collector tube. A variety of overwhelming bragging ads, in fact, those different brands of water heaters, the use of heat collection tubes are only 2,3, Tsinghua brand with Sun Music, Hua Yang, Jiangsu's other brands, as well as Fuzhou's Sheng Pu are used It is a collector tube in Jiangsu. According to JS's own confession, good brand names, each tube unit price 5-10 yuan, but the resulting temperature difference, after other losses, there are probably more than 2 degrees.
Then there is the heat preservation water tank, this brand, in addition to the outer packaging, stainless steel and color Steel Plate, the most important is the thickness of the insulation layer. I personally feel that this is more important than the quality of collector tubes. Absolutely, the thicker the better.
Then is the control circuit and the like, high-end, such as Emperor Ming, etc., plus the pressure pump, in fact, more than 200 yuan of capital, and other control features, all brands are also almost.
What did I choose for such a long time? It is modular. One of my friends bought Sheng Pu's, a local brand in Fuzhou that is not famous, but the price is cheap. Under my friend's recommendation, I went there. The boss there is very real. I just said that this solar energy has no high-tech, because there are only three parts of the composition, in any brand of dealers and manufacturers. At the same time, they can be wholesaled from the upstream suppliers to the same materials as the current first-line brands, the same collector tubes, the same control box, but the price is at least half the price.
This point is basically the same with what I know, the boss said that a management of 100, 15 even if the 1500, and so on it can be, I chose the largest model of 30 pipes, but the heat pipe replaced Tsinghua Sun Music Tube. The total price increases by 300 yuan, plus one for 10 yuan. Then use the latest automatic control level control box, plus 80 yuan. The water tank is still using the Shengpu water tank. This is the price of my initial solar energy, 3,380 yuan, 30 heat collection tubes, and about 300 liters of capacity.
The installation of solar water heaters was early, and my decoration process dragged on for a long time. During this period, it began to be used. The electric heating system was completely turned off and all the sunlight was used.
At that time, it was already in winter. If you take a shower every day, you will find that the water temperature is basically around 45 degrees, which is not hot. Not very satisfied. I used the Four Seasons Idylls next door neighbors, smaller, and complained that the water temperature is not high. At this time, a friend taught me an experience, such as when the family was few, when the water was on the second day, reducing the amount of water, so that under the same number of collector tube heating, the water temperature rose very quickly. Because I use 30 tubes, this trick, immediately effective, the water temperature can basically rise to about 55 degrees, because usually can not wash all 300 liters of water. Even with electric heating, the heating speed of the 1500W heating rod can be much faster.
Experience 1: Try to buy more solar water heaters, change the water level of the tank according to the number of people at home to achieve the best practical state.
In use, it was found that almost every night there was a temperature drop of around 15 degrees, and the suspected insulation effect of the box was poor and the bargains had to give me mistrust of the insulation of the tank. Water tanks, like other brands, are all made of heat-insulating foamed material, but it is estimated that the effect is still general. So, I took my own insulation material, rubber and plastic, is the general repair of air-conditioning stores have insulation materials, their water tanks wrapped up, and then brushed with sunscreen, it became like this.
Practice has proved that the effect is significant, there is no package compared to the package, the temperature dropped only 5 degrees at night, but the water temperature during the day has increased by 5 degrees. Normally, it heats while cooling.
Experience 2: DIY modification, can greatly increase the temperature of hot water, but the cost is very low. Even if the brand-name solar thermal insulation material is very high-grade (in fact, there is no such feeling), adding one layer to it can have 2 effects.
Experience to talk about solar water heater boss air conditioning prices stainless steel paint
Steel Structure Workshop Co., Ltd. , http://www.nssteelstructure.com