Seems see invented a zeer pot. People have been making these for quite a long time. The metal version would be lighter but seems like the traditional version serves the concept of low energy use better.
I've seen many versions of evaporative coolers just thought it was an interesting durable one.
"There is enough in the world for everyones needs, but not enough for everyones greed"
posted 7 years ago
should be done with savaged material as nice shiny metal containers are expensive. i thought it was going to be a cooling mech like in a propane fridge with a fresnel lens pointing at the evaporator instead of using propane or natural gas. this gets me thinking ... now to find a chest type freezer that runs on propane. if i shift the evap coil to the outside and shaded with a fresnel in place of the propane flame .. annother frankenstein monster is born