Wow, great forum here. I have a dilema and seek your advice. Just bought a 1500 square foot rancher. House has electric baseboards and water heater. No air conditioning. Electric heat is way too expensive and I'm not keen on using window units. I would like to install a central air/heat system...preferably geothermal. I had a guy come out and quote me 29K for a horizontal loop system. This seems way high for such a small home with an easy install (one floor, unfinished basement). I'm now thinking about doing it myself to save on labor costs. So, I'm wondering if this is possible or should I keep shopping around. I called another contractor and he told me around 24K over the phone..which still seems high...the cost of the furnace and piping cannot be more than 12K. I have the equipment to dig the trench and am familiar with plumbing and electric work....but, I've never installed any type of furnace or ductwork. Any advice?? Thank you.