The way it looks to me the tubing in the bottom of the pond is the least expensive to install, with medium efficiency. The tubing in the wells are in the middle on cost, and higher efficiency. The tubing in trenchs the most expensive to install and the least efficient. I only considered close loop systems. My pond is long and narrow and 20 ft. deep. So I am putting long loops in the bottom @ 300 ft. per ton. That way as they silt over in time, I will still have good heat transferr in the mud.
Last edited by diesel_john; 05-01-2008 at 07:50 AM..
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