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Posted by HeatPro on September 15, 2006 at 12:41:57:
In Reply to: Boiler...shake posted by Pete on September 15, 2006 at 09:12:23:
The movement is more likely happening when only one zone is calling for heat, so the water overheats locally. A Heat Manager control would probably eliminate the problem.
For a temporary fix, increase the pressure to 20 psig and see if it goes away.
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