1. Visiting from the US? Why not try DIYnot.US instead? Click here to continue to DIYnot.US.
    Dismiss Notice

When hot water gets to set temp what should happen?

Discussion in 'Plumbing and Central Heating' started by nodyland, 25 Jan 2017.

  1. nodyland

    nodyland

    Joined:
    6 Jan 2017
    Messages:
    36
    Thanks Received:
    0
    Country:
    United Kingdom
    Hi all,

    I have unvented tank and condensing boiler. There are two 2 port valves. There is no temp thermostat fitted to tank. My boiler has two dials. One for rads and one for hot water. We do not have a room thermostat.

    I believe my hot water thermostat on boiler is set to around 60 degrees.

    When rads and water are selected, will the hot water 2 port valve shut when the hot water reaches 60 degrees (or whatever it is set too etc). I'm thinking it should do so then it would go straight to rads after which would warm them up more??

    Any ideas

    Thank you
     
  2. Sponsored Links
  3. Gas2Air

    Gas2Air

    Joined:
    2 Aug 2004
    Messages:
    1,559
    Thanks Received:
    165
    Country:
    United Kingdom
    What boiler is it? What unvented tank is it?
     
  4. nodyland

    nodyland

    Joined:
    6 Jan 2017
    Messages:
    36
    Thanks Received:
    0
    Country:
    United Kingdom
    Hi.

    Thanks for your response.

    Its a: -

    Worcester R28 HE boiler
    Megaflo
     
  5. gasmanstu72

    gasmanstu72

    Joined:
    28 Jan 2015
    Messages:
    464
    Thanks Received:
    119
    Location:
    Stirlingshire
    Country:
    United Kingdom
    your megaflow will have a hot water thermostat fitted as part of the unit, once it's satisfied it should shut the hot water 2 port valve, assuming nothing else is calling for heat, then the boiler will shut down too.
    if you have no room stat and you have your heating on then the heating valve will stay open and the boiler will stay on until the boiler thermostat is satisfied.

    your boiler has a hot water thermostat but it's an optional extra and not connected so won't do anything
     
  6. Madrab

    Madrab

    Joined:
    4 Oct 2012
    Messages:
    8,246
    Thanks Received:
    2,356
    Location:
    East Renfrewshire
    Country:
    United Kingdom
    The unvented cylinder will have come with it's own stat that shuts down the 2 port valve when it gets to the set temp.

    Dang ... and wot e said :cool:
     
  7. Sponsored Links
  8. nodyland

    nodyland

    Joined:
    6 Jan 2017
    Messages:
    36
    Thanks Received:
    0
    Country:
    United Kingdom
    Thanks for the replies.

    Hmm. I thought it should shut off. Guess what, its not?
     
  9. nodyland

    nodyland

    Joined:
    6 Jan 2017
    Messages:
    36
    Thanks Received:
    0
    Country:
    United Kingdom
    Also my boiler never shuts down?
     
  10. nodyland

    nodyland

    Joined:
    6 Jan 2017
    Messages:
    36
    Thanks Received:
    0
    Country:
    United Kingdom
    I cant see no thermostat fitted to tank. Should it be like a dial type etc as in adjustable?
     
  11. ianmcd

    ianmcd

    Joined:
    15 Aug 2010
    Messages:
    23,536
    Thanks Received:
    9,737
    Location:
    Lanarkshire
    Country:
    United Kingdom
    Turn the HW thermostat on your boiler not your Cylinder down to about 3/4 and see what the temperature on your boiler goes to after a while,
     
  12. shambolic

    shambolic

    Joined:
    25 Aug 2008
    Messages:
    5,754
    Thanks Received:
    2,854
    Country:
    United Kingdom
    Kittens will die.
     
    • Like Like x 1
  13. DIYnot Local

    DIYnot Local

    Joined:
    3 Sep 2019
    Country:
    United Kingdom

    If you need to find a tradesperson to get your job done, please try our local search below, or if you are doing it yourself you can find suppliers local to you.

    Select the supplier or trade you require, enter your location to begin your search.


    Are you a trade or supplier? You can create your listing free at DIYnot Local

     
Loading...

Share This Page