This flat panel is made airtight and has the ability to heat water up to 200 degrees Celsius.

[zihadhosenjm40]

Year-round hot water supply;
Seasonal heating with savings of up to 70% on traditional heat energy sources (depending on latitude and climatic conditions).
It is worth noting that there are several types of solar-powered collectors. The main types are the flat type of the device and the vacuum modification.

In a flat device, water is heated by the falling sun rays japan mobile database through a special glass with a special black solution applied to it to retain heat.


The vacuum type of collectors has an important design difference from flat models of the device. It has the appearance of several glass tubes fixed to the base panel. These glass tubes have a special coating on the inner surface of the glass that collects solar heat.

In addition, inside such a tube there is another tube of a smaller cross-section, and between the outer and inner tubes there is a cavity from which the air is pumped out. This vacuum layer is needed for greater heat retention, and is capable of increasing the efficiency of the collector by 30 percent, compared to flat modifications. With the help of such a collector, water can be heated up to 300 degrees Celsius.

Another technological difference of the vacuum type solar collector is the presence of a special liquid at the bottom of the tube, which, due to heating, turns into steam and, rising upward, evenly heats the water.

In regions with short daylight hours and in subzero temperatures, such a scheme of operation provides a significant gain in the amount of thermal energy. As for the price, of course, a more structurally complex vacuum collector has a higher price, but its characteristics have advantages.