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Posted by HeatPro on November 30, 2005 at 21:40:48:
In Reply to: intermentant domestic hot water from boiler system posted by David on November 30, 2005 at 20:52:19:
Try this concept first:
http://heatpro.bluedomino.com/service/yeahbut.htm
then get back with the info necessary to find out what is happening.