A guy neer here has a house under ground.The house is built into a hill and has six foot of concrete overhanging the south of the house.Main source of heat is from the sun through the windows(south is the only windows).On top of the house is 6+ ft of dirt.All concrete well insulated,20 ft deep and 60 something long.He has a small amount of wood he heats with in winter,The over hang alows less direct sun in in the summer so house has no need of AC.Good high quality windows will keep out alot of cold and let in alot of heat.Front of house is 10 ft wall so the roof is sloped into the hill at 1ft on 10ft.I am planning on building something like it and useing small square bales of straw as insulation with concrete inside and out.once concrete is warmed up it holds heat for a long time so as the sun heats in the day hopefully it gives off heat at night. just one more of the million ideas out there to save money.
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Today's Featured Article - The Nuts and Bolts of Fasteners - Part 2 - by Curtis Von Fange. In our previous article we discussed capscrews, bolts, and nuts along with their relative hardness and thread sizes. In this segment we will finish up on our fasteners and then work with ways to keep them from loosening up in the field. Capscrews, bolts and nuts are not the only means of holding two parts together. When dealing with thinner metals like sheet tin, a long bolt and
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