Spa

The vaulted roof section that houses the garage also has room for a cozy spa and work-out equipment on the lower floor. This is located between the garage and the main geodesic dome.

Still, the most advanced book available on the subject is "Passive Annual Heat Storage, Improving the Design of Earth Shelters." This 1983 text is still quite up to date as it teaches the basic methods of understanding natural heat flow methods that never change. Other supplementary materials, home plans and instruction videos are available.

You can order books, videos, and papers on a large variety of topics which are available from the
Rocky Mountain Research Center.