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    ohbent1's Avatar
    ohbent1 Posts: 1, Reputation: 1
    New Member
    		  
    #1

    Sep 28, 2006, 01:15 PM
    Residential boiler system
    I have a residential boiler system in the house I bought. When I turned on the water supply to the boiler from the water system in the house, the T&P relief valve blew. I am assuming that this is because the water pressure in my household system (approx 70 psi) is too high for the boiler. The T&P relief valve has a 30 psi limit. Does anyone know what the component is that I need to put in line to lower the water pressure before it reaches the boiler? Any help would be appreciated!
    hvac1000's Avatar
    hvac1000 Posts: 14,540, Reputation: 435
    Heating & Air Conditioning Expert
    		  
    #2

    Sep 28, 2006, 11:50 PM
    A boiler water pressure regulator. They are usuallt set at 12 PSI from the factory.
    COMPANY's Avatar
    COMPANY Posts: 2, Reputation: 1
    New Member
    		  
    #3

    Apr 30, 2010, 02:33 PM
    Need to cut off hot water from the rest of the apt that are vacant,how do i do this w a oil boiler
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