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Boiler ventilation question

I have a gas boiler standing piolt and a was wondering if i should leave the boiler window open a crack? Some say no it will give to much oxygen and some say yes you need fresh air in boiler room, 


  • Jamie Hall
    Jamie Hall Member Posts: 19,954
    You have to have fresh air in a boiler room. The amount you need depends on the size of the boiler and the volume of the room. More details?
    Br. Jamie, osb
    Building superintendent/caretaker, 7200 sq. ft. historic house museum with dependencies in New England
    EBEBRATT-Ed Member Posts: 12,654
    and the age of the home. If the boiler has free air access to the entire basement and with average construction you probably have enough air infiltration without the window.

    If you have tight construction or

    If you have a finished basement, or the boiler is in a closet or small utility room then you could have issues