Hi Owen, I am intrigued, is this a variaton of the zeer pot? How does this get cold enough to make ice? Would this need to be made seperate from the house or could it be made behind a pantry as an addition? Teri M
This is a minor variation of traditional ice houses. The main difference is earthbag walls. Most were built with stone. They’re typically separate structures from the house, located to facilitate ice production (north hillside with access to water). So read up on historical ice houses and you’ll have 99%.
Hey Teri, there’s an old ice-house in the town I was born, and I can tell you how that one works.
It’s similar to passive solar design, in that you get lots of thermal mass inside, and lots of insulation around the outside, and this creates a stable temperature. However, unlike a passive solar design, you want the minimum solar gain (no windows, North hill as Owen points out, paint it white), to keep it cool. Also, in winter, people would chop blocks of ice and put them inside the ice-house, to cool down the thermal mass. Then, in spring, they would shut the (well insulated) door, and trap in the cold of winter.