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Radiator question!

Discussion in 'Home and Garden' started by kinger8938, 19 Nov 2016.

  1. kinger8938


    Joined: 23 Mar 2011

    Posts: 9,943

    Fairlý new home, 2 years roughly!

    Upstairs most radiators are controlled by the thermostat however the 2 rear bedrooms have the manual dial on the radiator! In one room this seems to work fine, but in the babies room, number 1 setting is absolutly boiling! Like you can smell the heat coming off it! Cant be right and worried it could be dangerous

    Any ideas what this could be?
  2. LOAM


    Joined: 20 Oct 2004

    Posts: 12,664

    Location: Nottingham

    Is it on the right way round? Older ones had to be on the flow (the one that gets hot first). Newer ones apparently can go on either but I'd probably still put them on the flow side.

    If in doubt replace it, they aren't expensive at at all but you will need to drain the system down lower than the rad inlet.
  3. Maccapacca


    Joined: 13 Apr 2010

    Posts: 17,921

    Location: Sunny Sussex

    If you mean a trv they often get stuck. Wind it all the way in and out a few times.
  4. mickyflinn


    Joined: 23 Mar 2011

    Posts: 11,975

    Location: West Side

    This ^

    You could always turn the boiler temp control down so the radiator is not so hot to toutch. Downside is it will take longer to heat the rooms
  5. GeForce


    Joined: 14 Feb 2006

    Posts: 4,631

    Location: Surrey, UK

    You can pop the head off the TRV and poke the pin to check that it moves too :)
  6. topgun06


    Joined: 24 Mar 2006

    Posts: 9,002

    ^^ This. If it's stuck, tap it with a hammer.
  7. macster


    Joined: 30 Sep 2004

    Posts: 150

    If its not a sticky trv it could need balancing.
  8. Gimpymoo


    Joined: 31 May 2005

    Posts: 15,249

    Location: Nottingham

    I doubt it is dangerous, that rad is just working on full whack.

    Worst case scenario, if the advice above does not help, just replace the TRV if not doing its job.
  9. john_s

    Wise Guy

    Joined: 25 Jun 2009

    Posts: 1,260

    Location: Guernsey

    Wind the lockshield valve, on the opposite end of the radiator to the TRV, down a little.

    Repeat until it brings the temperature down to a more acceptable level.