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Posted by HeatPro on December 22, 2004 at 08:13:14:
In Reply to: Why so hot? posted by Andrew Murchie on December 21, 2004 at 12:35:31:
You probably have everything set up properly, excepting the flow control valve (heavy check valves) are missing or open.
http://64.226.150.132/hydronic/multcirc/multcirc.htm