I wired my friends about 2 years ago, he loves it. He has a big house on 11 wooded acres. His comment was, I can keep the house as warm as I want now and don't worry about oil prices. Total cost was around 12,000.00 here. I think you need 3 acres and it needs to be 60 feet from the house in our twp. He stokes it in the morning when he goes to work and at night just before bed. I ran a 12/2 uf in the trench with the water lines, they are a SOB to unroll. They are encased in a 8" plastic pipe filled with foam insulation.