Cambridge, southwestern Nebraska | Have had geo for 30 years. Had to replace unit after 22 years.
Our temps can be well below zero to over 100. It keeps up both ways. Ours is a closed loop vertical well system. 4 wells 180’ deep. It does gave backup emergency heat that I maybe have used twice in 30 years.
I think a more efficient system might be a pump and dump if you don’t have to pull water from too deep. Water temp would be constant year around. Another thought I have had since installing mine was maybe I should have put the loops into the water table for better exchange of temperature? At the time they would have been considered wells but that wouldn’t have been a problem except for paper work. We stopped about 10’ above the water table.
I feel it has saved me money over the years.
My peak summer bills are similar to my peak winter bills. |