I was hoping this forum could help me with some questions. I live in the Dayton Ohio area and want to know if anyone can recommend an installer. I am currently getting bids for a geothermal system and have a wide variety of differences in these quotes. One that I have is a concern with the depth of the pipes outside. One installer is recommending a 3 ton system with pipes at 2-4-6 feet is this enough or should I only consider vertical drilling? Also I am looking at the Water Furnace system does anyone know of a better system? You help is greatly appreciated. Thanks in advance.