3 ms·

For the purposes of a just-below-the-surface cooler, yes I believe you are right. But my understanding from the book is that if you go slightly deeper, you will

For the purposes of a just-below-the-surface cooler, yes I believe you are right. But my understanding from the book is that if you go slightly deeper, you will get to a somewhat universal soil temperature no matter where you actually are, with extreme counterexamples, I'm sure. The book, on thermal housing, may have been assuming habitable areas, not Antarctica or Siberia.

msandford 12y ago
Check here: http://www.greenbuildingtalk.com/Forums/tabid/53/aff/13/aft/31492/afv/topic/Default.aspx http://www.greenbuildingtalk.com/Forums/tabid/53/aff/13/aft/... The 3rd post talks about the variation in temperatures. Seems that once you get to around 30 feet down the temperature becomes constant year round. For Houston the chart says 71 degrees. Because it's that single number instead of a range I assume that's the temp you get at 30 feet deep.