An old photo of a Persian Yakhchāl.
A giant evaporative cooler over a pit, which is filled with ice in the winter, and if built right, will be a self perpetuating freezer/cooler for a very long time.
An old photo of a Persian Yakhchāl.
A giant evaporative cooler over a pit, which is filled with ice in the winter, and if built right, will be a self perpetuating freezer/cooler for a very long time.
As someone who works with evaporative coolers, this is an interesting rabbit hole.
