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Posted by Jim on August 23, 2008 at 17:35:34:
In Reply to: Re: Boiler pressure posted by HeatPro on August 11, 2008 at 16:03:07:
1 foot of water equals .433 pounds per square inch gage pressure.
Example: If the highest water level in your system is 20 feet above your pressure gage, the gage will display 8.66 PSIG
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