Unfortunately
drilling here is expensive
like one btc per hole.
...
We inquired a geothermal heat pump a few years ago because the idea is brilliant and effective compared to air heat pumps but when the guy started to list expenses we realized we would well end up in the 6 figure range just for drilling the hole, I guess at current corn prices the whole setup would cost over 1 BTC, possibly up to 1.5 easily. An AC costs me <$10k installed and probably like $200-500 per summer for leccy. For heating in winter we spend like ~1200 for oil + ~500 for wood.
That said, the amortization time frame for such an apparatus is well beyond the reach of my mortal residues. Still like the concept and I guess once installed and paid you enjoy (almost) free heating and cooling.
ah i went horizontal loop as i have the land. so 2000 foot loop of pex buried in a trench six feet down in my back yard. mucho cheaper that drilling as only needed an excavator..
and at the time we needed to replace our ageing boiler heat system a decade or so ago there were some nice tax rebates and zero percent loans to go with geothermal installs.