I am looking at a long term stay at where I am living right now. I am considering purchasing a geothermal energy system, but wanted to hear from others if this is worth it. From people whom I have spoken to, they had had issues with theirs in the area (bad installers or equipment?). I have a pond and I heard that you can put the unit at the bottom of the pond, but it is located about 300 feet downhill from my home. Would this setup work?