Pam Hatfield wrote:a site which gives some data on earth tubes ( they don't like them for humid climates, but they don't say "never do it!!")
OTOH This link is to a study done in India so perhaps could be of interest. They didn't extend the study for very long, it seems, but had positive results. You could look up the weather data for the area and see if it corresponds with your own.
This may be a silly question, but do zair pots work only in dry climates or would they work in humid climates too? Could you do some sort of big brick version of a zair pot? Evaporative cooling certainly works spectacularly well in dry weather, maybe not in humid climates. If you generally run around 90 or 100 % humidity then possibly not, unless you also had wind. I have no idea what the "tipping point" might be without wind.
Pam Hatfield wrote:ok thanks Dave. I thought probably not, but wasn't sure. We'd used something similar in Mexico with success but the humidity wasn't that high where we were so thought I'd ask just in case someone knew, and you did.
Fred Winsol wrote:Does anyone have an experience/expertise with putting in earth pipes (2-6" dia) to provide cooling for a 'root cellar' type room? ... in an equatorial/tropical climate?
Any advice on length, type of piping material, precautions, lessons learned would be greatly appreciated.