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towel rail needs constant bleeding

  • 10-01-2013 12:02pm
    #1
    WestWicklow1
    Registered Users, Registered Users 2 Posts: 1,225 ✭✭✭


    I have a 1900mm high towel rail in my bathroom (house is a bungalow) that constantly needs to be bled. It's 500mm wide and loses about 10mm per day. No other radiator has this problem.

    Rather than putting on an auto bleeder I would prefer to find the cause. There are no signs of leaks anywhere in the heating system.

    Any ideas?


Comments

  • #2
    highdef
    Registered Users, Registered Users 2 Posts: 6,384 ✭✭✭highdef


    There is probably a leak somewhere. Do you know if your system is vented or unvented? I would guess that the top of the towel rad is the highest point of any rads in your house in which case it will accumulate air first.


  • #3
    WestWicklow1
    Registered Users, Registered Users 2 Posts: 1,225 ✭✭✭WestWicklow1


    highdef wrote: »
    There is probably a leak somewhere. Do you know if your system is vented or unvented? I would guess that the top of the towel rad is the highest point of any rads in your house in which case it will accumulate air first.

    Vented (f&e tank in attic) and yes, the towel rail is the highest point.


  • #4
    Outkast_IRE
    Registered Users, Registered Users 2 Posts: 7,516 ✭✭✭Outkast_IRE


    WestWicklow1 wrote: »
    Vented (f&e tank in attic) and yes, the towel rail is the highest point.
    Firstly check for any obvious leaks, go around to each rad and physically use your hands to feel for any dampness around the rad valves and on the pipework to the valves.


  • #5
    corkgsxr
    Registered Users, Registered Users 2 Posts: 3,404 ✭✭✭corkgsxr


    towel rails always seem to collect air more than other types of rads. but you need to find the cause of the air.

    tie up your ballcock and see how much your loosing


  • #6
    shane0007
    Closed Accounts Posts: 4,677 ✭✭✭shane0007


    It could be a leak or vent drawing in air on pump start up.
    Do you heating pipes run across the attic floor and then drop down, but I mean any of the primary pipes and not the feed and vent?


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  • #7
    WestWicklow1
    Registered Users, Registered Users 2 Posts: 1,225 ✭✭✭WestWicklow1


    shane0007 wrote: »
    It could be a leak or vent drawing in air on pump start up.
    Do you heating pipes run across the attic floor and then drop down, but I mean any of the primary pipes and not the feed and vent?

    All heating pipes are in the floor.
    shane0007 wrote: »
    vent drawing in air on pump start up.

    This is interesting because this has only been a problem since I got a new multi fuel (but burning pea coal all the time) boiler installed. One feature is that the pump is only on while the boiler is firing so there are multiple pump start ups per day, maybe three per hour.

    When you say "vent drawing in air" do you mean in the attic or at the auto air bleed close to the pump?

    Is there a cure other that fitting an auto bleed on the towel rail?


  • #8
    aujopimur
    Registered Users, Registered Users 2 Posts: 3,953 ✭✭✭aujopimur


    Check for pitching in your exp. tank, i.e. is hot water being pushed up thru' the expansion pipe into the tank.
    If the stove was installed correctly a seperate cold feed should have been installed and connected on the return in front of the pump, i.e. between the pump and the stove.


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