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Low gauge install

So I have been working in getting my system to work more efficient with that said, I have skimmed my boiler 2x and I have added a low pressure gauge to see accurately what's the pressure. I have a honeywell presuretrol install as well. My setting are as follows: Main 2psi and Diff 1.5 according to Dans book " Honey we got steam". So I fire up the boiler after installing my low pressure and the needle barely gets to .1 psi is this normal? And I did check the pigtail and is not clogged.


  • KC_Jones
    KC_Jones Member Posts: 5,741
    You are doing it right! You don't really want pressure or want the pressure to be as low as possible. The pressuretrol is really just a high limit switch to keep the boiler from going above a certain pressure. If you never hit that pressure that is actually a good thing. You will get nice run times satisfy the thermostat then the system will shut down for temperature and not pressure. I have a 15 ounce gauge and mine just jiggles a little and doesn't really come off zero.
    2014 Weil Mclain EG-40
    EcoSteam ES-20 Advanced Boiler Control
    Boiler pictures updated 2/21/15
  • Steaming101
    Steaming101 Member Posts: 30
    Thank you, KC_Jones