Hello all, Just thought I would share my experience with my geothermal system. I live in Pennsylvania near Gettysburg and I have been in the HVAC trade for 16 years now, and about half of that was directly related to water source heat pumps. I consult with people for fun and help design their systems. 5 years ago I decided to install my own geothermal system in a home I was building. I used a climate master TT027, and horizontal ground loop. I also use the hot water generator in the summer months. I used a 6ft trench, a ton of pipe, and a header system. To this date the system has not had one issue. I don't have much to compare it to because I installed it as my home was being built, but I can say that my utility bill is low consistently. I have two kids and a wife who take 45 in showers every night so I'm guessing most of my utility bill is washed down the drain lol. My home is 1800sqft, rancher and everything I have is electric. No gas. My bills range from $85/month in spring months to about $180 on the high side. Usually on cold winter months. My home has regular insulation, and 2x4 construction. Recently I have been thinking of adding solar hot water to my home, but have not done enough research yet. If anyone has any questions I'd be happy to answer!