30' x 40' Earth Berm Passive Solar House in Central Maine

countryplans.com — I bought 10 acres of forest and a John Deere backhoe this spring. I then started building the footers for my 30' x 40' earth berm, passive solar, insulated slab house. My friend and I are doing this ourselves, no contractors. Oct 29, 2008 View in Crawl 4