Abstract: A solar air heating system for circulating heated air from a solar collector or a heat storage unit, or both in proportion to heat available from the collector, through a control chamber to an environmental space to be heated, using one blower sized to optimize flow through the duct system to the space. When the space does not require heat, heated air from the collector is propelled via the chamber to the storage unit by a second blower sized to optimize flow from the control chamber to the storage unit.

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 forced air, solar heating system employing dual air movers and dampers, such air movers being selectively operable in tandem or separately, in conjunction with a solar collector and a storage unit for heating a space. The air movers and dampers are operable to transfer heat from the collector to storage, or from the collector to the space, or from storage to the space, or in special fashion from both the collector and the storage to the space, for efficient heat salvage.