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Posted by HeatPro on November 26, 2007 at 20:21:55:
In Reply to: Re: normal pressure for hydrotherm boiler posted by HeatPro on November 26, 2007 at 20:14:23:
A more direct answer that is understandable after you read the above reference:
The pressure in the boiler can be anywhere between the minimum cold fill pressure and 25 psig depending upon the temperature in the boiler due to the weather.
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