Abstract: There is disclosed herein a forced air solar heating system which causes selectively operated multiple air blowers in combination with multiple ducts and control dampers to operate in response to heat sensors in the space to be heated, and in a solar collector, and in a storage chamber, to transfer heat from the collector to storage, or to controllably transfer heat to said space from the collector or from the storage, but also alternatively as mixed heated air from both the collector and the storage, to a mixing chamber and then to said space. The air propelling blowers, the flow control dampers, and the mixing chamber are preferably all part of a unitary air handler.

Abstract: A solar collector assembly having within its housing a series of radiant energy entrapping collector elements, each having an energy absorbing base, a generally semicylindrical upwardly open reflector with concave, upper, receptor-reflector surfaces and convex lower receptor surfaces, a collector and radiation entrapping receptor projecting up in said reflector into the radiation reflection pattern of the concave surfaces. These elements form elongated fluid flow heat exchange passages.