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Thread: Power Flushing - Central Heating

  1. #1
    spoons
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    Default Power Flushing - Central Heating

    Hi all,

    My central heating system is 15 years old now and as far as I'm aware its never had a power flush.

    I'm constantly having to bleed a couple of the radiators every 3 weeks in some parts of the house during winter.

    Also, one of my radiators has stopped working altogether in the hallway. I suspect due to not being bled (I cant as the bleed nipple has broken).

    So... any ideas who to use, or if it can be a DIY job?

    I was also thinking of getting all 10 radiators fitted with thermal valves as well.

    Any thoughts or ideas?

  2. #2
    Regular Member Al 22 dti's Avatar
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    has any oil mixed with water in the header tank lol

  3. #3
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    We had our old system done twice by a plumber but that was nothing to do with having to bleed the system. It was because of sediment building up and blocking the radiators.

    It did work but took ages to do so must have been mega expensive (we didn't pay as the house was still under guarantee) Afterwards the radiators worked again for a short period but then stopped working again. Not sure if it can be done as a DIY job but it didn't look complicated. I recall the plumber telling us that power flushing the system might produce some leaks too at any weak points but it never did.

    After the warranty ran out we ripped the entire system out and started again and they have not needed doing since. That was probably about 7 years ago and we fitted thermal valves to every radiator. I'm sure it does save us some money because the spare bedroom and a room we use as an office are not heated when they are empty. Most of the others are turned down from maximum apart from the Conservatory.

  4. #4
    spoons
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    I've found this website thread which is interesting reading..

    http://forums.moneysavingexpert.com/...d.php?t=155334

    Gonna have to do some research as it looks like a minefield of robbing bandit territory

  5. #5
    Regular Member Al 22 dti's Avatar
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    thermal valves are good as rthey let you turn them down upstairs where you dont need as much heat...

    most of mine upstairs are almost turned off due to the heat rising.

    good money saver!.

    al.

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    Yep. That rings a bell. the inhibitor was never added to the system when our house was built and the heating installed. I don't think I would have bothered with a power flush if it was me paying and in the end the problem lay elsewhere, mainly with the poor installation of the plastic pipes. The new system is all copper.

  7. #7
    spoons
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    I've just fired up the heating system and after few gurgling noises it seems to be working.

    I had another close look at my rogue broken radiator and the bleed nipple isnt broke, its just rounded off so the radiator bleed tool doesnt work. I went back to basics and got a short nosed pliers and WD40. Its worked and now able to bleed.

    So went round and bled the others so will see how hot it all gets

    Next thing is getting these thermal valves put on? Any ideas?

  8. #8
    spoons
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    Ok thread closed... I've just learned all I need to know from this

    http://www.youtube.com/watch?v=WVdzP...1&feature=fvwp


  9. #9
    Regular Member Al 22 dti's Avatar
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    oooohhhh DING DONG ! ...

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    Quote Originally Posted by spoons View Post
    I've just fired up the heating system and after few gurgling noises it seems to be working.

    I had another close look at my rogue broken radiator and the bleed nipple isnt broke, its just rounded off so the radiator bleed tool doesnt work. I went back to basics and got a short nosed pliers and WD40. Its worked and now able to bleed.

    So went round and bled the others so will see how hot it all gets

    Next thing is getting these thermal valves put on? Any ideas?
    Quite cheap for these ones and easy to fit assuming that you have standard 15mm fittings
    http://www.screwfix.com/p/angled-the...ome-15mm/32130

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