If you are successfully using a geothermal system, tell us about it! Many of us are here to learn as much as we can about them and would be grateful for constructive input. What section of the country do you live in? What is the size, age and layout of your house? How long ago did you put your system in? What did it replace, and was it worth the extra cost to install it? Have you recouped the cost, or do you expect to? What extras did you have to do to accommodate your system, ie: upgrade electric, insulation, etc. What type of loop did you use? Please post anything you might have done differently, or that you particularly like about your set up, or that you would recommend others to do when planning theirs. Thanks in advance!