Abstract: A liquid medium solar heating system especially suitable to effectively capture intermittent and/or low intensity solar radiation as in cooler and/or cloudier climates. The system employs a quick response liquid storage having a capacity equal to only a small fraction of the capacity of the main storage with which it is combined. Temperature responsive flow control means causes preferential heated liquid flow from the collector to the quick response day storage, creating a usable thermal driving potential of a substantial temperature differential between heat exchange liquid in the day storage unit and the environmental space to be heated. Valved conduits between these components, and a pump cooperative therewith, achieve temperature responsive flow for optimizing heat salvage.

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.