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Plumbers Advice Required on Boiler Feed-Return

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  • 13-09-2008 10:46pm
    #1
    nulabert
    Registered Users Posts: 465 ✭✭


    Hello,
    I had a Firebird S 50-90 indoor boiler installed indoors, and then i moved it out side. Now i'm moving it again (long story). Anyways, i'm doing it myself this time. The only problem is, where should the return pump be? The last 2 plumbers have changed its. Since the last installation, the boiler will not heat upstairs radiators. The system is also connected to solid fuel.

    Is the return the bottom of the boiler and the feed the top? I'm confused, but i'll keep plugging away!


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    #2
    311
    Closed Accounts Posts: 5,332 ✭✭✭311


    It's probably got to do with the dual system and a non return valve at the back boiler.

    Without seeing the system it's hard to say though ,thats all I can say ;)


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    #3
    nulabert
    Registered Users Posts: 465 ✭✭nulabert


    No, no non return valves. I might swap the pump around or something.

    Thanks all the same


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    #4
    311
    Closed Accounts Posts: 5,332 ✭✭✭311


    nulabert wrote: »
    No, no non return valves. I might swap the pump around or something.

    Thanks all the same
    I wasn't asking ,I was suggesting.

    Thats normally what happens when someone branches in on the wrong point of the heating system.
    And I have to fix it :o


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    #5
    JamesM
    Registered Users Posts: 1,775 ✭✭✭JamesM


    nulabert wrote: »
    Hello,
    Is the return the bottom of the boiler and the feed the top? I'm confused, but i'll keep plugging away!

    Just to answer your specific question - the return is to the bottom of the boiler and the flow is out the top.
    Jim.


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    #6
    nulabert
    Registered Users Posts: 465 ✭✭nulabert


    Thanks Jim for that. I changed the pump to return into the boiler at the bottom. Its working grand, but the upstairs in the house won't work. Maybe i'll put another pump in the house in series with the boiler pump.


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    #7
    copper12
    Registered Users Posts: 680 ✭✭✭copper12


    If the pump is on the return; but turned the wrong way; this can happen only the downstairs getting hot


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    #8
    Micky Dolenz
    Registered Users Posts: 44,080 ✭✭✭✭Micky Dolenz


    on the pump there is an arrow indicating direction of flow. Water flows out of the boiler through the top pipe, flow and back through the return,. bottom. If you have the pump on the flow the arrow should be pointing away from the boiler (pulling water from boiler) and if pump is on the return the arrow should point toward boiler (pumping water through the boiler). If you are not getting heat upstairs a simple thing like an air lock will do it.
    when heating is up and running, turn off all rads that get hot to encourage pump to pump hot water upstairs.

    Best of luck


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    #9
    nulabert
    Registered Users Posts: 465 ✭✭nulabert


    Thanks for all your help lads. In the end, i put a second pump on the return line in series. One pump is up the garden in the boiler house and the new pump is in the hot press in the house. Thats solved the problem!:)


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