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Posted by Mel on January 11, 2004 at 17:47:32:
I have hot water baseboards with two zones. One zone is extremely hot and the other is not. I purged the system to make sure not air in it and a little came out. But it is still not hot enough. The wate get alot cooler on the return pipe then the exit. The basement where the pipes are is heated the the pipes are insulated? What can i do?