don't know where my last post went so I'll try again. Probably hit the wrong button. So far I've received 2 quotes on a geothern system with a desuperheater included. Both are for a 2 stage system. One contractor says I need a 4 ton (Water Furnace) and the other a 5 ton (GeoComfort). Both include a 10KW strip, the pad, drilling (1 says extra if rock is hit in drilling), digital thermostat and duct work alterations. The cheaper of the 2 does not include the high voltage wiring and says additional filters are $250/case of 12. The more expensive provides an "electrostatic air filter you apparently just wash and put back. The water furnace system is just over $4,000 more than the GeoComfort and includes the high voltage wiring. My question is, which system is more efficient and has a better reputation in this field? I know it would not cost $4,000 to wire in the high voltage. Is there really that much difference in manufacturers? I did not mention the total costs from each as I thought it might not be right to do that. Thanks for any help anyone can give me. Still waiting for the 3rd contractor to show up.