Randen I agree that the DX system would probably be the best. But the cons way out weigh the pros right now. Cons are cost, tons of brazing/potential leaks, time consuming install, amount of refrigerant, and heat loss in the ground on the way back to the house. PVC is much easier to insulate.
I am reading your post now about the tube in shell. Why do you say the refrigerant needs to be on the outside? I can make the exchanger very large if need be to gain the efficiency needed. Not disagreeing just SO much data right now.
|