Hello, I am new member to this forum. I am looking to go Geothermal heating and cooling for my home. My house is around 3800sqft with 2 zone heating (propane furnace) and cooling(AC) system. One of my biggest issues is the propane heating bills. This has been a pain since I brought the house with around $5k / year in heating and cooling costs ( this is after deducting what my Solar Panels produce ) My downstairs AC stopped working so started researching options and came across the Air based heat pumps which reverse for cooling and heating. On further research I came to know they are not good for below 40F temperatures. Then I stumbled across this forum which has so much useful information. I had a manual J done by a HVAC guy for an air based heat pump + propane furnace. He suggested I need a 4 ton for 1st floor and 3.5 ton for 2nd floor for the air-heat pump. For the furnace he suggested 90K BTU for 1st floor and 75K BTU for 2nd floor. The approx cost for a top of line Air Heat pump + Furnace hybrid system came to approx $30-35K. When I was researching it looked like a similar sized unit ( 7 ton WF 7 ) Geothermal install would be possible in the $40K-$60K price range before rebates. I recently called a vendor for a Geo unit estimate and he said for a Water Furnace 7 series 7 ton unit it could cost about $97K before tax rebate. I literally fell off the chair. Hence I am seeking some guidance on what you think it should cost for a Water Furnace 7 series GEO unit ( 2 zone for 1st and 2nd floor - totaling 7-8ton )? Also any suggestions on good contractors in the Hunterdon County ( i am in Flemington NJ )?