Advertisement
If you have a new account but are having problems posting or verifying your account, please email us on hello@boards.ie for help. Thanks :)
Hello all! Please ensure that you are posting a new thread or question in the appropriate forum. The Feedback forum is overwhelmed with questions that are having to be moved elsewhere. If you need help to verify your account contact hello@boards.ie
Hi there,
There is an issue with role permissions that is being worked on at the moment.
If you are having trouble with access or permissions on regional forums please post here to get access: https://www.boards.ie/discussion/2058365403/you-do-not-have-permission-for-that#latest

Back Boiler Stove

  • 09-03-2020 8:14pm
    #1
    DI Dwyer
    Registered Users, Registered Users 2 Posts: 126 ✭✭


    Can I disconnect a Back Boiler Stove from CH and run it as a stand alone unit.
    i.e with no water in the jacket. It's a Boru.

    The reason I want to do this is that , whenever we have a power outage we have no heating (as the circ pump has no power and the stove boils.)

    The stove is in parallel with the OFCH.


Comments

  • #2
    Wearb
    Moderators, Home & Garden Moderators Posts: 6,378 Mod ✭✭✭✭Wearb


    No , it will twist and warp.

    Please follow site and charter rules. "Resistance is futile"



  • #3
    Doctors room ghost
    Registered Users, Registered Users 2 Posts: 4,837 ✭✭✭Doctors room ghost


    As far as I know if you want to use a boiler stove without plumbing and just to heat the room you have to disconnect pipes and pipe stat and blank the pipes and drain the stove.
    Stove fittings have to be left open and boiler part has to be filled with sand


  • #4
    DI Dwyer
    Registered Users, Registered Users 2 Posts: 126 ✭✭DI Dwyer


    I would have thought these boiler stoves should operate to some degree without the circ pump. ie the hotwater rising sufficiently to prevent it from boiling.
    The other thing I'm suspicious of is a NRV on the inlet which I was told was to prevent the stove from getting hot when the ofch is only on.

    I can't get hold of the guy who installed it some years ago.


  • #5
    John.G
    Registered Users, Registered Users 2 Posts: 3,623 ✭✭✭John.G


    It should, if installed correctly with twin coils like the one in post #47 but there are a frightening number of bad/dangerous installations around.

    https://www.boards.ie/vbulletin/showthread.php?p=112726128


  • #6
    DI Dwyer
    Registered Users, Registered Users 2 Posts: 126 ✭✭DI Dwyer


    Thanks for that John. That's pretty much what I have. I think I'll get that NRV taken out and see how it operates. The stove was installed as a direct replacement for an open fire back-boiler. The only adition was the NRV


  • Advertisement
  • #7
    John.G
    Registered Users, Registered Users 2 Posts: 3,623 ✭✭✭John.G


    IT really shouldn't be installed in the boiler primary flow/return (IF it is) but it should be a swing check valve if so as the poppet type require ~ a 1 to 2M differential head to open and gravity (un pumped) flow due to temperature difference operates on a very low differential head.


  • #8
    Ubbquittious
    Registered Users, Registered Users 2 Posts: 6,291 ✭✭✭Ubbquittious


    I am sure the crowd i bought my stove from lit it dry to remove the cresote before i bought it. Doesnt seem to have affected it. Wouldnt put a big fire in it like that though


  • #9
    DI Dwyer
    Registered Users, Registered Users 2 Posts: 126 ✭✭DI Dwyer


    I've convinced myself this brass nrv isn't needed as it wasn't there with the back-boiler . I'll get it taken out.


  • #10
    DI Dwyer
    Registered Users, Registered Users 2 Posts: 126 ✭✭DI Dwyer


    Ubbquittious wrote: »
    I am sure the crowd i bought my stove from lit it dry to remove the cresote before i bought it. Doesnt seem to have affected it. Wouldnt put a big fire in it like that though

    Won't chance using it without water. I'll give Boru a ring to hear what they have to say and post their comments.


  • #11
    9935452
    Registered Users, Registered Users 2 Posts: 2,835 ✭✭✭9935452


    Doctors room ghost wrote: »
    As far as I know if you want to use a boiler stove without plumbing and just to heat the room you have to disconnect pipes and pipe stat and blank the pipes and drain the stove.
    Stove fittings have to be left open and boiler part has to be filled with sand

    Ive heard of boilers being disconnected and the boilers collapsing after a period of time .
    This one probably wouldnt be much use afterwards.
    One thing for the op to think about is the heat to the room afterwards.
    I had a back boiler erin which leaked.
    It was a 19kw stove with about 14kw going to the boiler.
    I replaced with a non boiler oisin that gives 6 ish kw to the room .
    The room might be too hot without the boiler


  • Advertisement
  • #12
    John.G
    Registered Users, Registered Users 2 Posts: 3,623 ✭✭✭John.G


    DI Dwyer wrote: »
    I've convinced myself this brass nrv isn't needed as it wasn't there with the back-boiler . I'll get it taken out.

    Any picture of it?.


  • #13
    DI Dwyer
    Registered Users, Registered Users 2 Posts: 126 ✭✭DI Dwyer


    John.G wrote: »
    Any picture of it?.

    Boru say Boiler stove should not be fired unconnected under any circumstance.


  • #14
    John.G
    Registered Users, Registered Users 2 Posts: 3,623 ✭✭✭John.G


    Probably prudent to remove that NRV, even with a perfect installation it is hard to imagine a cylinder (especially if up to, or near temperature) absorbing say 8 to 16 kw or whatever, in the event of power or pump failure, it might if someone is around to run off a lot of hot water from the cylinder and bank down the fire, some crowd have a system (heat hero?) that have a heat exchanger where cold mains/tank water is allowed to run through it when the stove flow temperature is excessive.


Advertisement