2) Replumbing the closed-loop geothermal heat loops. The system has not performed as well as hoped - during the winter the loops have been too cold, and during the summer too hot. Turns out that the way the manifold and trenches were connected up has probably been directing all of the water flow down one loop, thus getting only about 25% efficiency from the ground loops. Thus the manifold has been torn up and the pipes exposed; waiting on parts today.
Thursday, October 7, 2010
2nd big round of work
2) Replumbing the closed-loop geothermal heat loops. The system has not performed as well as hoped - during the winter the loops have been too cold, and during the summer too hot. Turns out that the way the manifold and trenches were connected up has probably been directing all of the water flow down one loop, thus getting only about 25% efficiency from the ground loops. Thus the manifold has been torn up and the pipes exposed; waiting on parts today.
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