No.4
Results of my pot-in-pot "refrigerator": With the current temperatures and humidity where I am, it's suitable for keeping things cool but not to actually refrigerate them. The lowest humidity I had while testing it was ~30%, with an outside temperature of 79F, giving me a zeer pot temp of around 60F at the hottest parts of the day.
No.6
I just made my own the other week. It's pretty useless, honestly. Uses up tons of water, and doesn't work that well. I'm assuming there are better ways to keep things cool.
No.7
>>6Yeah it's pretty dependent on a constant water supply (which I do have on the landscape here). And it seems that you have to be in a pretty specific environment for it to work optimally anyway. It's not arid enough here.
I've been looking at electric coolers, but I don't really know what to expect out of them. And besides, I'd like to see what I can accomplish without electricity anyway.
No.11
>>>/poverty/228>If you use alcohol, would it make it colder?It could, but because you have to replenish the liquid as it evaporates, it wouldn't be as cost effective as using readily available water.
This page mentions it:
http://rebuildingcivilization.com/content/busting-myths-about-zeer-pot
>The rate of evaporation is the key to cooling performance in these devices, so faster evaporating liquids would help to improve performance, but it also matters how much energy they remove as they evaporate. Acetone removes 29% less energy than the same amount of water. It would probably make up for that with its faster evaporation rate. No.31
I'd been ignoring my zeer pot since I finished posting on /poverty/ about it, but I reached in it today and it was 55 degrees Fahrenheit in there. It's currently 66F outside, 57% humidity. Very slight breeze.