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Boiler Water Consumption

I have 7 radiators, 3 on the ground floor and 4 on the 2nd floor (3 in the bedrooms and 1 in the bathroom) on a single pipe system. Off hand, how much water would be lost over 24 hours if only 1 air vent was defective?

Comments

  • ethicalpaul
    ethicalpaul Member Posts: 5,701
    Impossible to say. But what do you mean "defective"? Do you mean it's blowing steam all day or that it never opens?

    How much water are you losing over 24 hours? Why hide that information from us? :smile:
    NJ Steam Homeowner. See my sight glass boiler videos: https://bit.ly/3sZW1el
  • Steve_211
    Steve_211 Member Posts: 47
    I'm not hiding it. I opened up a topic September 2020, "Boiler Consuming Water". I didn't want to be redundant. After following the advice since that post, I replaced all the air vents and swapped out the Honeywell pressuretrol with a Honeywell vaporstat. Everything is fine now. I know make-up water has to be added from time to time. I do that manually and prefer it that way. I would just like to know what amount would require attention. As to being defective, if the vent was stuck open.
  • ethicalpaul
    ethicalpaul Member Posts: 5,701
    OK so this is a hypothetical, gotcha. And I wouldn't be worried about being redundant from Sept 2020 :)

    so it's still impossible to say, but it could be a quart to a gallon maybe, depending on how much the system was running that day, the pressure of the system, the size of the vent

    If I see my level go down a gallon in a week I start looking for leaks. I prefer a gallon per month or less.
    NJ Steam Homeowner. See my sight glass boiler videos: https://bit.ly/3sZW1el
    Hap_Hazzard
  • Steve_211
    Steve_211 Member Posts: 47
    That much, huh, from one small port hole on one little vent. Thanks for the estimate, now I know what to look out for. I'm no where near that. Since my 2020 post, I replaced all the vents with Varivalves set around the halfway mark and the vaporstat set at 10 ounces with a 4 ounce differential. I add about a pint a week to a week and a half.
    ethicalpaul
  • Jamie Hall
    Jamie Hall Member Posts: 23,273
    You're fine.
    Br. Jamie, osb
    Building superintendent/caretaker, 7200 sq. ft. historic house museum with dependencies in New England
    Hap_Hazzard