Heating and Cooling With The Sun

(Page 7 of 7)

July/August 1986
 
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During the winter—when the path of the sun and its intensity result in lower temperatures within the roof channels—the system still functions, though not quite as efficiently. Fortunately, prevailing winds from the northwest, flowing over and around the outside of the "tower of power," tend to pull air out of the roof also. And, if this breeze effect is not sufficient to draw warmed air through the underground pipe network, the blower fan can always be activated.

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