Solar collecting module also calls solar engineer or solar collector, which means a kind of device for collecting solar energy. In the whole system of solar heat utility, the part of absorbing solar radiation and transferring heat to water is solar collector, however, it can't be used separately. It can be combined and installed into different proportion according to different requirement which mainly used for collecting heat and then exchange heat with other device. Solar collector is the main part of collecting heat which achieves heat from absorbing and transferring solar energy.