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Posted by HeatPro on February 10, 2007 at 20:36:40:
In Reply to: pressure and firing rate? posted by alex on February 10, 2007 at 11:11:23:
Your boiler is probably way overfired for the load. I'm surprised the pressure switch is working at .5 psig cut-in, or even a .5 psig differential. It would be much better if it took 15 minutes or so to get steam high enough to shut off the burner on the pressure switch. You might have clogged vents.
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