Word: heated
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Dates: during 1970-1979
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...first and most important construction project in any home-building plan." But overall it is concrete. It deals in ample detail with all the information needed to plan and build a house in harmony with its natural environment. It tells how to face it south to get heat from the sun's rays and how best to conserve the heat once it enters the house, how to design the outside to blend with the house's surroundings. And my cousin says it's thorough in the technical details. He should know, because he builds houses. I'm just a skinny...
Wing, the physics professor, wrote the technical chapters; Cole wrote the more philosophical introductions. Wing tells you the heat value of a cord of wood. Cole tells you what he dreams about when he sits in front of a wood fire. Wing handles the physics, Cole the metaphysics...
...Rocks. "Active" systems, which work more like conventional gas or oil heating arrangements, are also becoming popular. George Löf, director of the Solar Energy Applications Laboratory at Colorado State University, uses an original installation in his home in Denver. Löf's house is fitted with plate-type solar collectors, sandwiches of glass and black-painted, heat-absorbing metal that warm trapped air like a series of shallow greenhouses. Fans then force the heated air through ducts to cylinders filled with rocks that hold the heat. When warmth is needed, air from the rooms is circulated...
Other active systems use water or various antifreeze solutions as a heat-conducting medium (see diagram). In Hyde's house, water heated by the sun to around 200° F. is stored in a 2,500-gal. tank. Hot water then circulates through a heat coil over which air is blown by a fan and ducted to every room in the house. At Harry Evans' new home in East Hampton, N.Y., heat from solar panels in the roof is collected in a bin containing 1,000 sealed, plastic bottles of water, which can hold the heat...
Other problems stand in the way of large-scale conversion to solar energy. Engineers have yet to figure out effective ways to store heat from the sun for more than three days or to tap solar energy for power production without filling huge tracts of land with reflectors or photovoltaic cells. Even legal technicalities must be resolved before use of solar energy can become practical. A study by Arthur D. Little suggests that the courts might be required to decide whether everyone has an equal right to sunlight, a question that will certainly arise the first time someone tries...