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Steam Pressure

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dave_20
dave_20 Member Posts: 5
in THE MAIN WALL
I know this is Steam 101 stuff but we don't see much of it around here so I don't get much practice - what should the pressure gauge read on a residential Pennco steam boiler? I had one today that was at zero while running.

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  • Jamie Hall
    Jamie Hall Member Posts: 23,344
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    Sounds about right...

    particularly if you are looking at the code 0-30 psi gauge.  Most residential steam systems should run less than 2 psi max. -- in fact, most seem to work best in the ounce per square inch range; possibly as high as 1.5 psi cutout/.5 psi cutin.  And you won't see that on the code gauge...
    Br. Jamie, osb
    Building superintendent/caretaker, 7200 sq. ft. historic house museum with dependencies in New England
  • nicholas bonham-carter
    nicholas bonham-carter Member Posts: 8,578
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    low pressure gauge

    you can get a good 0-3 psi low pressure gauge from gaugestore.com and mount it on the same pigtail as the pressuretrol, or better yet vaporstat. that way you know what the pressure is.--nbc
  • dave_20
    dave_20 Member Posts: 5
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    Thanks guys, and..

    ..I've seen them show a vacuum. Why?
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