I was looking through my old Pinterest board about tiny homes and off-gridding and came across my passive cooling pin.Basic idea is pipe system buried “x” number under the ground pulls in warm/hot air from outside and as it circulates through buried pipe it is cooled. Ground temp at 3+ feet below surface will be about 55-60 degrees F.
It’s a fairly big project, digging and material wise-but not undo able. Our hang ups have been trying to figure out how big the pipe field should be and at what depth.
There is a gentleman in Iowa that creates these systems for regular homes. I contacted him for help but he couldn’t much get past the size of our home being 200 sq. feet AND off grid. He didn’t want the job.
Interestingly enough I have discovered another person wanting to do the same thing!! Very exciting.
Check out his site here. Looks to be some good info and reading.