Want some advice from someone who was in the heating and cooling industry for many years, geothermal is the most efficient way to heat and cool a home. Central heating and cooling is more efficient also and can provide greater comfort and efficiency when the duct work is used to zone the home. With zoning a home can be efficiently heated and cooled with one unit even in two story buildings. Geothermal in North America is used from the cold climates of Canada to the more desert like environment of Texas and the other southwest states. Zoning a home with wall mounted units like the ones you named works well, until you have to replace them and the new models that come out are of a different physical size, then some work on the wall becomes necessary, pain in the butt. The best thing one can do outside of the systems themselves are good doors windows and plenty of insulation, air infiltration into a home is the number one enemy of the pocketbook.
GC
GC
God loves those who believe and those who do not and the same goes for me, you have no choice in this matter. That puts the matter of total free will to rest.
