Be useful to take high quantity of heat, household solar inverter provides hot water

Voluntary national standards GB/T19141-2003 “household solar inverter system technical conditions” regulation, compact type useful household solar inverter, heat is not less than 7.5 MJ/m2, split type useful household solar inverter, heat is not less than 7.0 MJ/m2.
2, appearance
The outline of the test mainly solar inverters  area were tested, the standard deviation of nominal aperture area and the actual contour lighting area is 3% or less.

Solar inverter tank volume and lighting area is directly affect the thermal performance index of the goods, will also affect to some in the selection and design using the goods from the basis, the tank volume is too small, may have water heats up quickly, but the available water quantity is little, need to use that meet the constant water injection, waste heat resource, at the same time the actual lighting area, such as inconsistent with nominal aperture area (production unit markings were generally large), there will be the temperature of the water is not hot, it is difficult to meet the requirements of use.

3, hints of choose and buy
At present, various types of household solar inverters water heater market, according to the types of solar collectors to differentiate, can be divided into the vacuum tube type of peace; According to the structure distinguish, can be divided into one-piece and separation; According to the production process, can be divided into the confined and unconfined.

Among them, the most common is the pressure on the vacuum tube type of household solar water heater and fission flat water heater, solar water heater of choose and buy goods should pay attention to the following:
(1) the key components of household solar water heater is all-glass vacuum solar thermal collectors (vacuum tube) or flat plate collector (flat), vacuum tube or plate quality directly affect the performance of the whole household solar water heater.

Careful observation on the glass tube vacuum tube coating or coating on the tablet, this layer is called the solar selective absorption coating, coating manufacturers because of the craft that make different, coating color will have difference, but is generally black, dark blue or dark grey, uniform color, good quality coating film scratches, peeling, or fall off phenomenon, there are no stones or on the glass knot phenomenon, support of support inside the glass tube is placed correctly and not loose.