Originally Posted By: wazzle
I installed a 3.5 ton unit in a pond that is less than 1/4 acre and 12 feet deep. I installed the entire thing myself and my highest bill so far has been $160 on a very cold month.

http://www.geothermaldiy.com/


How big house do you heat? Do you have separate meter for the geo? What is your heating electric rate?

We live in a barn (aircraft hanger) converted to a house.
0.7 ac leaky pond.