Passive solar heating system

In a building, a heating apparatus that heats said building, at least partially by a passive heater contained in a floor of the building that is located at a location above the ground, said heating apparatus comprising:

• a floor structure having a vacancy within its interior;
• a solar powered heat source for heating a flow of air to a temperature that exceeds the ambient temperature of the air surrounding said floor;
• a solid heat retaining medium within said vacancy, said medium being of the type capable of accepting heat from said flow of air and being positioned to permit said flow to permeate throughout said medium;
• means for diffusing said flow throughout said heat retaining medium, said diffusing means including a pump for producing a supply of super-atmospheric pressurized heated air, and a conduit for carrying said flow of heated air throughout said heat retaining medium;
• a plurality of panels of the type having at least one mesh forming a major lateral surface and having truss members connected to said mesh and joining said major lateral surfaces, said panels being disposed vertically and interconnected to one another to form wall;
• at least one panel of the type having at least one mesh forming a major lateral surface and having truss members connected to said mesh and joining said major lateral surfaces said panel being disposed horizontally to and connected to said vertical walls to form a floor member therebetween, said horizontal panel having portions outward of said mesh, adapted to secure reinforcing bars which resist force moments induced in said panel, said connection between said wall and floor panels including a plurality of bent dowels whose ends are attached to said meshes of said vertical and horizontal panels, all of said panels being covered with a cementitious mixture of portland cement and sand.