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    askmealice's Avatar
    askmealice Posts: 8, Reputation: 1
    New Member
    		  
    #1

    Jan 22, 2008, 11:20 AM
    Have no heat in house
    Hello,

    Boiler has water temperature of 180 and no pressure indicated on gauge.
    No heat in house.
    Could it be air line, expansion tank, ciculating pump or other?

    Thank you
    hvac1000's Avatar
    hvac1000 Posts: 14,540, Reputation: 435
    Heating & Air Conditioning Expert
    		  
    #2

    Jan 22, 2008, 11:22 AM
    Could it be air line, expansion tank, ciculating pump or other?

    It could be all of the above. I would start with the circulator to be sure it is running.
    askmealice's Avatar
    askmealice Posts: 8, Reputation: 1
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    #3

    Jan 22, 2008, 12:05 PM
    Thanks for qick respnse

    Trying to decifer if I need circulating pump or if air in line.
    Pump is hot with little vibration. Opened returned valves and no water is coming out.
    Open vent by baseboard,no air or water coming out.
    Bioler pressure gauge still 180 and no pressure.
    Does the boiler need pressure for water circulate?
    Does water still circulate without pressure?
    askmealice's Avatar
    askmealice Posts: 8, Reputation: 1
    New Member
    		  
    #4

    Jan 22, 2008, 12:21 PM
    Thank for quik response.
    Trying to decifer if I need circulating pump.
    Pump is hot with little vibration. Opened return valves and no water comes out
    Opened vent by baseboard,no air or water comes out.
    Boiler gauge still 180 and no pressure.
    Does boiler need pressure for water to circulate?
    Does water still circulate without pressure?
    Could there be that much air in lines that water will not circulate?
    tsa7man's Avatar
    tsa7man Posts: 154, Reputation: 9
    Junior Member
    		  
    #5

    Jan 22, 2008, 01:05 PM
    If you have a pressure gage, it should be around 12 lbs of system water pressure.
    askmealice's Avatar
    askmealice Posts: 8, Reputation: 1
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    #6

    Jan 22, 2008, 01:40 PM
    I am aware the pressure should be 10-20 pounds, but can it be that there is no pressure because of air in the lines, or because the circulating pump may not be working?

    And again, the circulating pump is warm with little vibration. Thanks.
    hkstroud's Avatar
    hkstroud Posts: 11,929, Reputation: 899
    Home Improvement & Construction Expert
    		  
    #7

    Jan 22, 2008, 02:58 PM
    Do you have a automatic pressure valve and a stop valve on the input water line? Air in the circulating line will expand when heated and cause blow off valve to release water. If input stop valve is closed or pressure regulating valve is failing, no make up water can enter the system. Hence no pressure.
    askmealice's Avatar
    askmealice Posts: 8, Reputation: 1
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    #8

    Jan 22, 2008, 03:48 PM
    Thank you very much. I will look into it.
    jadent's Avatar
    jadent Posts: 2, Reputation: 1
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    #9

    Jan 22, 2008, 05:18 PM
    Quote Originally Posted by askmealice
    hello,

    boiler has water temperature of 180 and no pressure indicated on guage.
    no heat in house.
    could it be air line, expansion tank, ciculating pump or other?

    thank you
    Could be all the above
    Need to know more about your system
    Hot air baseboard circulators??
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