WaterFurnace corp. headquarters in Ft. Wayne, IN. has a one acre pond with loops sunk. They heat their entire building with those loops and that building has got to be 100,000 sq ft.
You say my pond's too small??! Them's fightin words!
2008, 2011 & 2012 conference attendee. Striving to be the person that my dog already thinks I am.
