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Posted by HeatPro on March 25, 2008 at 14:45:21:
In Reply to: Re: American Radiator Co No, 2 posted by Rob Lund on March 25, 2008 at 11:25:12:
You need a pressure relief valve on the top of the boiler installed with a close nipple with no intervening valves between the boiler water and the valve. You can ask the building inspectors of your home town and the insurance companies that insure your house.