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Steam boiler run times

kennybkennyb Member Posts: 31
I'm getting about 16-18 min run times for my steam this good run times. The thermostat is set to one cycle an hour.


  • FredFred Member Posts: 8,423
    That can vary widely based on outside temps relative to how high you keep the room temp and how tight the structure is, but in general, a 15 to 20 minute range is pretty normal.
  • EastmanEastman Member Posts: 927
    No one can answer your question. Wouldn't you want the system to have run times of 0 minutes? There needs to be more information.
  • nicholas bonham-carternicholas bonham-carter Member Posts: 8,141
    How big is the boiler?
    Have you done a heatloss on the building, using the SlantFin free program?
    How quickly does the steam arrive at the radiators, and is it simultaneous for them all?
    There are many things to consider when answering this question.--NBC
  • kennybkennyb Member Posts: 31
    Well the temp is around 30 tonight and I was getting 15-18 min run times with the boiler that hasn't run since 330-400pm. The radiators are getting steam in about 7 min or so. I have a Weil McLain eg 40 steam.
  • SWEISWEI Member Posts: 7,356
    Is the space comfortable? What's the design temp there?
  • kennybkennyb Member Posts: 31
    It's very comfortable I leave the thermostat set at 70. Don't believe in a set back with steam
  • Jamie HallJamie Hall Member Posts: 12,956
    That all sounds pretty normal to me...
    Br. Jamie, osb

    Building superintendent/caretaker, 7200 sq. ft. historic house museum with dependencies in New England.

    Hoffman Equipped System (all original except boiler), Weil-Mclain 580, 2.75 gph Carlin, Vapourstat 0.5 -- 6.0 ounces per square inch
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