2nd floor heated towel rail problem

Discussion in 'Plumbers' Talk' started by canny lad, Nov 25, 2008.

  1. canny lad

    canny lad New Member

    My house is 5 years old and over the last 4 years I have been building an extension over the garage. I have built a bedroom over the garage and above the bedroom I have a en-suite bathroom. I have fitted a large heated towel rail it gives off something like 7000btu. I have connected this in to the radiator system just after the junction where the water gets diverted to either HOT water or heating. I put 22mm t piece in and reduced that down to 15mm then to 10mm to ease the running of the pipe.

    I can not get the heated towel rail to warm up, it has water in it and I have bled the system twice. The original rads are all still ok.

    I also Raised the small water tank in the loft to the highest point in the loft which is higher than the towel rail but not by much.

    Can anyone give me some guidance please. HELP
     
  2. tomo80

    tomo80 New Member

    you crazy
     
  3. canny lad

    canny lad New Member

    Why am I crazy??

    Is it because I have reduced from 22mm down to 10mm??

    Any helpfull advice is very welcome
     
  4. " I have connected this in to the radiator system just after the junction where the water gets diverted to either HOT water or heating."

    ?
     
  5. The South

    The South Member

    ok, so you've checked the obvious things I guess:

    you did connect to a flow and a return pipe, right ;)

    the valves on the towel rail are turned on, right?

    are the pipes you tee'ed in to getting hot when the CH is on?

    when you open the bleed valve on the towel rail, does water come out?
     
  6. hallbeck

    hallbeck New Member

    Turn all the other rads off and leave the towel rail on, then run the heating - this will blow any air lock out
     
  7. canny lad

    canny lad New Member

    Posts: 772
    Registered: Sep 29, 2004

    Re: 2nd floor heated towel rail problem
    Posted: Nov 25, 2008 1:31 PM
    Reply

    ok, so you've checked the obvious things I guess:

    you did connect to a flow and a return pipe, right

    the valves on the towel rail are turned on, right?

    are the pipes you tee'ed in to getting hot when the CH is on?

    when you open the bleed valve on the towel rail, does water come out?

    Yes to all of those questions. It seems as if there is not enough pressure to get the water to rise up to the next floor!!! I thought about fitting a more powerfull pump or is that the wrong thing to do??
     
  8. canny lad

    canny lad New Member

    hallbeck

    Posts: 1,092
    Registered: Oct 9, 2006

    Re: 2nd floor heated towel rail problem
    Posted: Nov 25, 2008 1:32 PM
    Reply

    Turn all the other rads off and leave the towel rail on, then run the heating - this will blow any air lock out

    Will try this now. Fingers crossed
     
  9. mully123

    mully123 New Member

    You may have a problem with you existing pump,ie youve intoduced a higher head pressure than before,check your pump head pressures thru MIs.
     
  10. bathstyle

    bathstyle Active Member

    Check just how much water you are getting out of each radvalve, could be a blockage or kinked pipe
     
  11. doing a bit

    doing a bit New Member

    Can anyone give me some guidance please. HELP

    where did you connect the return to ?? if you connected the flow into the flow from the boiler before or after the 3 port valve??
     
  12. canny lad

    canny lad New Member

    hallbeck

    Posts: 1,092
    Registered: Oct 9, 2006

    Re: 2nd floor heated towel rail problem
    Posted: Nov 25, 2008 1:32 PM
    Reply

    Turn all the other rads off and leave the towel rail on, then run the heating - this will blow any air lock out

    Will try this now. Fingers crossed


    Did this and the towel rail did get worm but not hot or even nearly hot. As soon as I turned all the rads back on the towel rail went cold again. Damm
     
  13. Take it you've not installed the towel rail upside down?
     
  14. canny lad

    canny lad New Member

    Posts: 1,130
    Registered: Jul 15, 2008

    Re: 2nd floor heated towel rail problem
    Posted: Nov 25, 2008 6:36 PM
    Reply

    Can anyone give me some guidance please. HELP

    where did you connect the return to ?? if you connected the flow into the flow from the boiler before or after the 3 port valve??


    I connected the return back in to the system which does not have a 3 port valve. The 3 port valve is on the feed so I connected the feed 6 inches after the 3 port valve but before the manifold. I could not connect in to the manifold as its already full.
     
  15. canny lad

    canny lad New Member

    radvalve, could be a blockage or kinked pipe

    None of the pipes are kinked as I have just checked. Water does flow from the bleed valve but not under much presure.
    I think I am going to have to change the 10mm pipes to 15mm, which should give me more volume of water?? What do you think??
     
  16. canny lad

    canny lad New Member

    down?

    Funny you asked that. I dont think there is an upside down on this towel rail as the connection points all 4 of them are the same ...........!!
     
  17. I believe some of the larger towel rads can be installed upside down.
     

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