Solar heating is divided into passive and active heating. Passive style refers to the ingenious management of internal space and external form based on the rational arrangement of the building's orientation and environment, as well as the appropriate selection of materials and structures construction without the use of mechanical energy. a technology that has a certain heating function for buildings.
Passive heating, the three major elements of passive heating technology are heat collection, heat storage and insulation. The main forms are: direct income type, heat collection and livestock heating wall type, additional veranda combined type, etc.