Geothermal considering heating and cooling
so I've read a few threads here discussing geothermal (ground source heat pump) but they all seem to focus on the heating only. I have a limited yard and consider the ditching of the AC unit a big win. Is there research looking into the efficiency of geothermal vs AC unit? and comparing the entire HVAC system? Also, since I know that it's a split at best with a good heating unit, has there been much looking into split unit systems? The one quote I've seen so far is for an 80% unit gas backup, but if I could get a 90-92% efficient unit as the "backup" would I be able to use it to do the heating in the winter instead?
Also, how much does brand and fluids in the wells make a difference?
Also, in case it matter, state is Maryland
Posted Feb 13, 2012 10:28 PM ET
Edited Feb 13, 2012 10:40 PM ET
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