Solar water heater can be used for a few years!That is, long life, high temperature
Four, installation and service. The solar water heater installation requirements are very high, professional installation is the winter with the foundation and guarantee. Some brand-name enterprises often around recruit migrant workers formed a guerrilla, also in a hurry without formal training posts, design, these people did not understand the water heater body fixed line professional knowledge, do not understand the product later maintenance, meet the eye everywhere caused problems directly affect the solar water heater "standard of life". For example, for a fixed water heater installation bracket accessories brand by wire, strong, resistant to corrosion, but some small manufacturers are using fixed wire, resulting in some areas a heavy rain, hail and other severe weather, there are a lot of solar water heater crashing to the ground.
Three, liner. At present, most of the solar water heater manufacturers said water tank is stainless steel. Stainless steel is the same, but chromium and nickel in stainless steel is not the same. Good solar water heater uses stainless steel high chromium nickel, ensure the liner durable, corrosion resistance is strong; much inferior liner using low grade stainless steel, basic does not contain nickel, corrosion resistance performance is poor, life is short.
Two, insulation layer. The solar water heater production during the day of hot water stored in the storage tank, if the insulation heat preservation performance is good, overnight, rainy days can not be used or not used. That cause the insulation layer of the water heater insulation mainly due to the poor performance of the solar water heater, the insulation layer determines the how many hot water temperature and hot water level. The layer of imported raw materials, such as polyurethane insulation good, low thermal conductivity, high temperature resistance; automatic temperature high pressure foaming process and quantitative heat insulation, the high-temperature aging treatment, thermal insulation performance is high and stable and lasting. While some inferior materials with high thermal conductivity, no foaming uniform, night temperature can drop to ten degrees, encountered rainy days. There's no hot black enterprise, in order to reduce the cost, even the benzene board made, a few months after the insulation effect of straight down, after one or two years of basic. Temperature.
Causes of solar water heater short-livedA vacuum tube vacuum tube is the core component of solar water heater, solar water heater is the "heart". It directly determines the quality of the whole water heater performance. Vacuum tubes performance by coating technology and cleaning, coating, vacuum, sealing process of the impact. However, some ultra low-cost solar water heater using the vacuum tube has the following defects: low vacuum, only high-quality products 1/100; a large number of impurities and residual water vapor pipe, a high temperatures encountered into gas, vacuum reduction; low vacuum film stability of two or three years, intimal layer aging, fall off, resulting in the thermal performance decays rapidly, unable to absorb enough heat.
