Solar collectors are a number of devices, with some differences by type, shape, types and destinations.

There are two basic types of solar collectors - liquid and air.

We first consider the fluid system. There are three basic designs that provide fluid contact with the heat in order to select the heat:

• corrugated sheets Thomason with an open surface; This is when the black, mostly metal surface gravity wave-heated water flows. Applicable only for the summer outdoor heated swimming pools.

The next type is- "tube on a sheet"
* The imposition of pipes on the back plate or the front side;
* Location of pipes in the vacuum glass tube (a very common design in recent years, thanks to the Chinese manufacturers as well). The figure shows an example of such a construction.Next