Abstract: A pyramid-shaped solar collector is provided which is capable of operation in conjunction with heat transfer media such as air, water and oil. A pre-heater assembly is provided for use in conjunction with the solar collector to develop improved thermal output capabilities. Series of mirrors are provided for use in conjunction with the solar collector and pre-heater to provide further improvements, a first series of mirrors primarily serving to amplify the quantity of incident solar radiation delivered to the solar collector and pre-heater, and a second series of mirrors primarily serving to compensate for movement of the sun with respect to the solar collector and pre-heater throughout the day.