I am pretty close to deciding to go geothermal in a new 7000 sqare foot house. I have been reading a great deal on the forum and it seems that Water Furnace is by far the most popular product in this space. The HVAC contractor that I am the most comfortable with (worked with on my current house for 20+ years) does not sell Water Furnace but they do sell Geo Comfort. I know until recently Geo Comfort private labeled Water Furnace, but they supposedly are manufacturing their own system. Does anybody have any thoughts on the relative merits of the two systems? Should I be concerned about the relatively new offering of Geo Comfort's own system? Another thing that concerns me is Geo Comfort does not provide their own warranty they basically are providing a warranty through a 3rd party which in my past experiences a 3rd party is nearly as invested in your satisfaction as is the original manufacturer.
Any thoughts would be greatly appreciated. Also are there any other manufacturers I should be considering?