Passive Solar Energy Technology Guidelines

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ILLUSTRATION: MOTHER EARTH NEWS STAFF
Harold Hay's Sky Therm heating/cooling system has been called a big water bed covered by moving, insulated panels. And that's all it is.

Solar energy innovators Jon Hammond, David Bainbridge, Harold Hay, and Steve Baer share their solar energy creations with MOTHER EARTH NEWS readers.

Passive Solar Energy Technology Guidelines for Homes

Solar Heating and Cooling Guidelines for Windows by Jon Hammond and David Bainbridge

The windows on an average house here in the United States are
responsible for about 50% of the building’s heat gain during the summer

  • Published on Nov 1, 1975
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