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Old 01/08/2008, 05:27 PM   #5
AcroSteve
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Join Date: Feb 2003
Location: Electric Avenue
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There are two basic methods;

1. Run tank water through an underground loop with a pump that is controlled by a thermostat.

2. Run a glycol solution through a closed underground loop that also has a heat exchanger to transfer the heat from the tank water.

Option 2 is slightly more complicated but better due to the elimination of possible stagnant tank water from the loop.


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