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Posted by Harold hydronicnetwork.net on February 05, 2004 at 11:15:28:
In Reply to: Changed pressure/other questions related to it. Steam Heat posted by adams on February 05, 2004 at 09:35:43:
The boiler pressure stays at .5, so the vents are exactly open to prevent the pressure from rising beyond that because the boiler input is exact for what you need
the burner is so exact that even when the vents close the boiler can not exceed that pressure.
Lower the pressure on the control down to 2.5 and the pressure would stay the same; but you would be safer; the reason for the electric control as well as the 15 psig relief is redundant safety.
If that was the way the boiler ran and NEVER went over .5 psig, then the vents are not likey to be damaged.
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