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NYC Boilers move to rooftops


    EBEBRATT-Ed Member Posts: 13,810
    Not unusual in newer buildings, especially high rises. Putting the boilers and pumps at the top of the system relieves them of high static pressure design.

    I suppose in older buildings structural support for the new boiler room and replacement issues (a crane or an elevator??)
  • Abracadabra
    Abracadabra Member Posts: 1,948
    edited February 2017
    I'm assuming not steam? hot water only?
    EBEBRATT-Ed Member Posts: 13,810
    Could do it with steam, but would need a condensate pump in the basement and a boiler feed tank in the boiler room. But unless its a "Mills express riser system" the steam mains on the top floor would be undersized. In that case an " express main" would have to be run to the basement.

    Don't know if that's ever been done!!!
  • neilc
    neilc Member Posts: 2,230
    edited February 2017
    what would happen to a working steam main,
    in the basement,
    if the basement flooded ?
    I mean, it couldn't shouldn't happen,
    but what if?
    known to beat dead horses
    EBEBRATT-Ed Member Posts: 13,810
    @neilc sometime google steam explosions. This is a common occurence on district steam with underground steam.

    Run a steam pipe through a manhole and the manhole floods with water. the steam inside condenses and makes a slug of water inside the pipe. the steam makes the water slug a battering ram.

    total distruction