I'm new here so please don't be to harsh if this is a repost or common knowledge to everyone else.

I'm about to start consturction in the spring on our new house (in Maryland) and I am setting appointments now with all subs and the only brand of geothermal system I can find is WaterFurnace Envision.

Who else has Geo Thermal systems?

Is there a site that has reviews/comparissions of the different systems.