Difference between revisions of "Earth Cooling Pipe"
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| − | An underground pipe | + | An underground pipe can cool in summer and prewarm incoming air in winter, and do so with many times the energy efficiency of air conditioning units. |
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| + | The subject is well covered already: | ||
http://en.wikipedia.org/wiki/Earth_cooling_tubes | http://en.wikipedia.org/wiki/Earth_cooling_tubes | ||
Revision as of 23:21, 20 March 2007
An underground pipe can cool in summer and prewarm incoming air in winter, and do so with many times the energy efficiency of air conditioning units.
The subject is well covered already:
http://en.wikipedia.org/wiki/Earth_cooling_tubes
http://www.advancedbuildings.org/main_t_vent_underground.htm