Too often I've seen a set of tender documents put out to bid with an area blocked off on the site plan that says "drilling contractor shall provide GHX that has a capacity of 720 MBH and will be responsible for performance of the GHX." That's kind of like going to your doctor with chest pains and he says "go see the fellow in the nice suit...he's from the drug company. He'll sell you the medication you need"
In my blog I'll be expressing my opinions about what I've the learned about ground coupled heat pump (GCHP) systems over the last 30 years. I've been very fortunate to work with many interesting people who are passionate about this technology...engineers, geologists, mechanical contractors, drillers, excavation contractors...in different parts of the world. I've learned a lot from them and will be using this forum to pass on some of the things I've learned and feel are important. Please feel free to use this information if you feel it's worthwhile...hopefully you can avoid some of the same mistakes I've learned from.