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Analysis of ways to purchase all the advantages and disadvantages of solar water heater - solar water heater, electric water heaters - household

< BR> the face of many

Solar water heaters

Brand, often at a loss and a loss in the market

Sell

Many types of solar water heaters, solar collector types according to points, can be divided into vacuum tube and a plate; by structural points can be divided into integrated and split; divided by production process can be divided into pressurized and non-commitment Pressure. Currently, the most common type of household most non-pressure vacuum tube solar water heaters. The face of dazzling water heater market, consumers often are , know how to choose now to tell you about the focus on the purchase of solar water heater, the first choice for a good brand and reputation with excellent product.

<BR> Advantages:

<BR> Economy

Energy

,

Environmental protection

, Safety, convenience, water supply capacity, long service life. With auxiliary electric heating function of solar water heaters, solar-based, energy supplement, so that the use of solar water heaters can weather the whole year.

<BR> Disadvantages:

<BR> High price, installation complexity, compared to

Water Heater

And

Gas Water Heater

More difficult to maintain.

<BR> Purchase:

<BR> 1. To see the brand. To select a specialized manufacturer of products, best quality brand, so it may have good quality and excellent after-sale

Service

System and commitment.

<BR> 2. To see the quality of vacuum tubes. Water heater vacuum tube is a key component of vacuum tubes are under the same condition, the amount of heat, directly affecting the level of water temperature. Choose to carefully observe the coating on the glass vacuum tube, its color is usually black, dark blue or dark gray, the color quality and good coating uniformity, film no scratches, no peeling or shedding phenomenon, the glass no stone, place the correct supporting documents, not loose.

<BR> 3. Look at the insulation layer and the liner material selection, process technology. Solar water heater in the tank shell and the liner has a layer of insulation between, on the hot water insulation plays a key role, with polyurethane insulation materials make up more than 15 years service life.

<BR> Liner is stored hot water, preferably stainless steel plate, thickness 0.5 mm. In short, consumers should choose imported polyurethane, water tank insulation layer thicker.

<BR> Because the water heater insulation, and liner all in-house, consumer easy to see, so choose a good market reputation, product quality, performance, and service products will have better protection.

<BR> 4. Look hot performance. The higher the water temperature is not a tank, it shows better thermal performance, while the average daily efficiency as high as possible to the average heat loss coefficient as low as possible. Second, water heater pressure test to see whether the pass, pressure test not meet the standard water heater easily lead to leaks, waste water and can not use both.

<BR> 5. See Support. Stent should have sufficient strength and stiffness.

<BR> 6. See reflector design. In the purchase of products should pay attention to whether the design of reflectors can take full advantage of the vacuum tube of the absorber, the maximum degree of vacuum can be light.

<BR> 7. The key technical issues, how to identify the out of consumption

<BR> (1) vacuum tubes in different colors, because the absorbing layer, and the effect is also different;

<BR> (2) reflectors are not used by most companies, since the use of a period of time, the reflectors become decorations, too much dust, no effect, but also from the wind angle, do not support with reflectors;

<BR> (3) storage tanks are not the thicker, the better the insulation layer to reach beyond the critical thickness, then a thick insulating layer of no use.
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