Geothermal Greenhouse: It REALLY Worked!

“This geothermal greenhouse design worked perfectly through our negative 17 degree winter weather here in SE Idaho. I couldn’t be more pleased with the results. It is affordable and it works. Two things that I love when they come together.”

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Cheap, Lean, and DIY Greenhouses


A simple greenhouse design by Urban Farmer Curtis Stone that is fast and cheap to install. Also known as Caterpillar Tunnels. Cost is about $1,000 for a 12’ x 100’ poly tunnel made with 1-3/8” galvanized top rail tubing that’s used on chain link fences. Metal hoops are 4’ apart.

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