https://www.youtube.com/watch?v=IZghkt5m1uY Also if you end up moving somewhere, look into this.  It's amazing how it's not really more of a common practice.  This guy went against "Science" by getting geothermal energy from simply putting open tubes into the ground and using the air, as opposed to water and all the expensive equipment "Science" said you need.  Guess they don't want people saving shitloads of energy costs or growing their own food.