At 6 feet below the surface, ground temperature remains constant year-round regardless of surface conditions, providing a stable 55°F cooling source that can be used to cool homes without electricity through simple underground air channels, a technology the Amish have used for 200 years and which was known to the cooling industry since 1930.
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Deep Dive
Discover the Amish secret a $300 system that cools homes to 55 degrees without electricityAdded:
You're standing at the mouth of a tunnel that runs underneath an Amish farmhouse in Holmes County, Ohio. No wires, no compressor, no thermostat, and the air coming out of it is 55° in the middle of August. This $300 system cools any home to 55° using nothing but the earth beneath your feet and a fan that draws less power than a light bulb.
The Amish have been building it for 200 years. The cooling industry has known about it since 1930, and in 1930, they made sure you would never find out. So, I went back to Holmes County, and what I found underneath those farms is the same physics the Persians used to store ice through 120° desert summers 2,400 years ago. And yes, this works even if your house was built 50 years ago.
>> [clears throat] >> Here's the number that changes everything. At 6 ft below the surface, the ground temperature locks in and stays constant all year.
Summer, winter, doesn't matter what's happening above. Oak Ridge National Laboratory, that's the Department of Energy's own research facility, measured it city by city.
In Chicago, the ground sits at 55° year-round.
In Atlanta, 62. Denver, 58. Phoenix, 67.
Minneapolis, 52.
And in Holmes County, Ohio, right where those Amish farms sit, the soil temperature stays between 54 and 56° every single day of every single year.
It never changes.
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