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Thread: steam heat

  1. #1
    Join Date
    Feb 2008
    Posts
    14

    steam heat

    One of the rentals that I service has a well mclain steam boiler and two of the radiators do not heat up. Do not know much about them. Bad valves on the radiators or bleeders,vent? Need ideas!

  2. #2
    Join Date
    Feb 2004
    Location
    New Mexico
    Posts
    5,346
    While I don't know how your's is piped here are some things to check.
    Are the radiator valves open?
    Remove the vent and see if they heat then.
    Sometimes the radiators will sink into the floor and if the were piped without much pitch they could waterlog.
    See if the pipe hangers are in place.

    Most of the time it's the vent.
    Tracers work both ways.

  3. #3
    Join Date
    Aug 2008
    Posts
    322

    Steam heat

    Check the trap most of the time the float or the temp. device is stuck if the heater has one of those thermostats with the dial numbers take the top part off you will see a pin make sure it is in the open position. hope this might help.

  4. #4
    Join Date
    Jan 2007
    Location
    Milwaukee Wisconsin
    Posts
    968
    My guess it's either water logged or air bound. Check the autovent.

  5. #5
    Join Date
    Feb 2008
    Location
    Massachusetts
    Posts
    701
    Is the boiler running for any length of time and then shutting off either by the t-stat or pressuretrol ?

    If not, and the unit is short cycling, check the pig tail.

  6. #6
    Join Date
    Jul 2008
    Location
    Poestenkill, NY
    Posts
    769
    One pipe steam or two?

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