Published in Encore magazine, April 2002

This article is part of a series that includes:
-- A machine shop powered with solar energy --
-- An off-the-grid home made of tires and cans --
-- An institute with geothermal temperature control --
-- A home that stores solar heat with sand in the basement --

Published in Encore magazine, April 2002

This article is part of a series that includes:
-- A machine shop powered with solar energy --
-- An off-the-grid home made of tires and cans --
-- An institute with geothermal temperature control --
-- A home that stores solar heat with sand in the basement --

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