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Discuss Radiator Balancing Help in the Central Heating Forum area at UKPlumbersForums.co.uk.

  1. hotdogharry

    hotdogharry New Member

    HI All
    Just had a new boiler fitted and have since noticed one radiator out of five is not getting as hot as others. I think it is last on a run as pipework comes from first floor (bedroom) to ground floor (living room).
    I read up on balancing radiators only to find only the radiator thats not heating up properly is the only rad with a lockshield valve. The others upstairs have to manual valves on both ends (ie no lockshield)
    My question is will I still be able to balance system using the manual valves and should I adjust both ends or leave one open and adjust the other or will this not work
    Thanks in advance
    Cliff
     
  2. Rob Foster

    Rob Foster Top Contributor!!

    It’s dead easy , locksheild and wheelhead valves are the same under the cover. A locksheild is just a wheelhead with a different head. I would carefully open fully one side of each rad. Then close all the valves on all the rads on the other end. Do all left hand eg.
    Then open all on the selected side by one full turn.
    Switch boiler on. See which heat up. The ones that get hottest leave alone , the ones that do not heat up open another full turn and so on thereby you are rationing the heat out equally. It’s time consuming , and bleed all rads before you start . Rob Foster aka cenralheatking
     
  3. hotdogharry

    hotdogharry New Member

    When you say "locksheild and wheelhead valves are the same under the cover" I assume by the cover you mean the plastic cap?
    Sorry if I was not clear about my valves but mine have the pin on top (not a spindle) on both ends of rads (except the rad thats not heating properly which does have a spindle one end)
    Will your instructions for balancing still work with my pin valves?
    thanks
    cliff
     
  4. Riley

    Riley Plumber GSR Top Contributor!!

    Pics please
     
    • Agree Agree x 1
  5. Tim Watts

    Tim Watts Member

    If you have 2 manual valves, declare one to the balancing valve (lockshield) and the other to be the day to day control. Open the control and balance with the other. Never touch it again :)

    I found (as a DIYer) a 2 input thermocouple temperature meter with a pair of pipe clip style sensors to speed the process up a lot.
     
  6. hotdogharry

    hotdogharry New Member

    Sorry not a clue what that is or how I would use it
     
  7. Riley

    Riley Plumber GSR Top Contributor!!

    I’m intrigued with”pins” as you describe them could we see some pics
     
  8. hotdogharry

    hotdogharry New Member

    here is pic not sure if all exactly the same but all have the vertical pin

    DSCN0712.JPG
     
  9. Riley

    Riley Plumber GSR Top Contributor!!

    On both ends? That is a trv without a control head on it
     
    • Agree Agree x 3
    • Like Like x 1
  10. Riley

    Riley Plumber GSR Top Contributor!!

    I’m assuming that’s not on the other end too so the opposite end to that should be your lock shield
     
  11. hotdogharry

    hotdogharry New Member

    yes on both ends
     
  12. hotdogharry

    hotdogharry New Member

    yes took plastic bit off to show 'pin'
     
  13. gmartine

    gmartine GSR

    Err...did you also have installed new rads and pipework?
     
  14. hotdogharry

    hotdogharry New Member

    no just new boiler rads/valves are very old
     
  15. hotdogharry

    hotdogharry New Member

    how do these work?
    If i screw the black piece with the numbers on into the valve does this in effect reduce the flow/temperature?
    Now I know there is supposed to be lockshield valve but as old has the valves shown in pic at both ends just trying to get rad thats not heating up as much to work a bit warmer
     
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