Abstract: A simple solar heating plant comprising multiple reflectors, primary and secondary compartments, an air heating assembly and a concealed solar heat collector being formed and constructed in an enclosed shed. The shed is provided with a single entrance for access, and a skylight for sun rays to enter. The shed may be attached to an existing house or built adjacent to the house with connecting ductwork. In a new proposed building a leanto to accommodate the elements of the plant may be designed and constructed on one side of the building favorable to the varying position of the sun. Tight air space between the walls of the compartments and the inner wall of the shed is provided to reduce the effect of cold air conduction from the outside. The primary compartment of the plant is provided with a clear glass cover or equivalent to allow sun rays to be directed to the collector positioned on the leveled surface of piled rocks or bricks within the compartment.