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Cutting into rad pipes

Discussion in 'Plumbing and Central Heating' started by joelpeyton, 24 Feb 2011.

  1. joelpeyton

    joelpeyton

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    If I,ve got a F&E Cistern and I want to put a new rad in on the first floor, am I right in saying that I can just bung the F&E and close off the vent, which will allow me to cut into the pipes under the floor boards, or do I need to drain down the system downstairs first?

    Thanks in advance
     
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  3. Andygasman2010

    Andygasman2010

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    Bungs are just for quick jobs like changing a rad valve or a pump maybe. I'd drain down to do any major work.
     
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  4. joelpeyton

    joelpeyton

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    Andy, I was told that if I drained down the system then there is a good chance of getting air blocks, is this true?
     
  5. cumbriahandyman

    cumbriahandyman

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    Yes, but getting rid of one should not be much of a problem.
     
  6. Jazzynash

    Jazzynash

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    Drain down is alot safe yes it may cause an air lock but this can be removed
     
  7. joelpeyton

    joelpeyton

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    Best way to remove them if I encounter the problem? By the way when draining down should I turn off or leave open all valves to radiators?
     
  8. MANDATE

    MANDATE

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    Best tip is to run a bucket or two of water from the two valves before fitting the new radiator. If it's run off slowly any air locks will be removed at the same time the lost water is being replaced.
    If you wish you can run the system without the new radiator to test it.
     
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