[BBIGG BLOCK 396]

King I have a friend that has something similar to geothermal he is using in his barn and it works pretty good.It does not work as well as a conventional A/C and Heat system but it maintains a very comfortable temprature.
Geothermal systems us a liquid pumped through a series of underground pipes or lines, the earth stays a costant temprature + or - a few degrees at certain depths underground.
Thus the liquid is made to be this temprature then runs to an exchanger system that removes the cool or heat from the liquid and uses that to heat /cool your shop,home,barn etc. The system my friend designed uses larger pipes and even a large buried tank and they are all hooked together by a piping system that runs to a large blower.
The air is circulated from the tanks and pipes underground and blown through a duct type system in the top of the barn similar to a central A/C duct system. The cool and warm air is spread throughout the barn maintianing a pretty comfortable level.He also uses solar panels and batteries to run the pump or blower.It is a lot cheaper than conventional A/C and the source is naturaly renewable.It does not cool or heat as well as a central A/C and heat system but can regulate it to be very comfortable.