High-tech Modelling for Low-Tech Passive Solar Homes with Trombe Walls

High-tech Modelling for Low-Tech Passive Solar : TreeHugger: "They used this information to design thirteen Trombe walls (which use the sun to heat a small air space between a glass wall and a heavy-mass wall such as concrete. The trapped heat is then transferred into the building, either indirectly through the concrete or, as is the case with the Destination Center, directly through vents.)"