Earth Sheltered Greenhouse
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Introduction
Earth sheltered greenhouse. Massive heat storage during the cold season (warmth in winter, cooling in summer). Very suitable for partly cold climates. This is an adaptation of passive annual heat storage (PAHS). Also called "Walipini" (pit greenhouse) in South America.
The Benson Agriculture and Food Institute at Brigham Young University examined the concept in detail and has put together a manual with specific designs.
Mike Oehler, of UndergroundHousing.com, described a similar concept in his 2007 book: The Earth-Sheltered Solar Greenhouse Book
External Links
Walipini Greenhouse at Brigham Young University [1]
UndergroundHousing.com [2]
Wikipedia entry on Seasonal Thermal Store [3]