well.. im not so sure about geothermal. I have one client that paid over $24,000 for a complete geothermal system....100;s and 100;s of feet of 6' deep trenches all over his 5 acres of land. He had this dream to be energy independent
Since this job ive heard from other about the same issues. Some have had to add geothermal heat pumps to the mix. I figure id make it about 40- 50 years on what i pay for propane to cost what this guy put into his system. My propane bills arnt that great, and its only bad 4 months out of the year.
I think if i had to do it all over again i WOULD install a pex tubed radient heat system in my house, fired by a gas boiler and a backup wood burning boiler. Its amazing how nice of heat and how inexpensive to operate these systems are. Again, the install cost can be rather high,, and there is alot of maint required.
I was hired to install two 240 volt water heaters to heat the geothermal mass tanks up enough so he could remove his jacket indoors during the winter. The system is a complete flop.