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Back boiler that only heats water.

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  • 20-12-2019 7:23pm
    #1
    Merriecrimbo
    Registered Users Posts: 4 ✭


    I was wondering if anyone has or has heard of a back boiler that only heats water not radiators? I moved into a house that has what looks like a back boiler but when I put it on it over heats the boiler that runs the central heating with oil. When I asked about it, I was told it was only for heating water. Trouble is, in the winter I like a fire on in the sitting room, but when I put it on I can't have the oil fired central heating on too. Is there any way around this? Does anyone know if there is a way to make the heated water overflow into the radiators?
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    #2
    FishOnABike
    Registered Users Posts: 4,372 ✭✭✭FishOnABike


    If the back boiler on the fire heats the water in the central heating system why would you want the oil fired boiler running too? The boiler thermostat will probably be open when the central heating system is brought up to temperature by the back boiler so even if switched on the oil boiler won't fire.


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    #3
    L4yercak3
    Registered Users Posts: 34 ✭L4yercak3


    I bought a house and had a back boiler like this.. But it did not impact on central heating system...
    . When I put a new grant boiler in the plumber cut the back boiler from the system..


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    #4
    Merriecrimbo
    Registered Users Posts: 4 ✭Merriecrimbo


    It heats the water in the tank, and when the pressure builds it impacts the central heating boiler, whether it is on or not. The thermostat for the central heating seems to trigger on how hot the water is. I can only tell you what I see. I am far from an expert on any of this stuff. If the heating is on, and then I put on a fire, the boiler for the heating overheats. The fire only heats one room. The central heating heats the whole house. I am disabled and need the house warm, so if I put a fire on (for effect mostly), then the house has to cool down because I have to put the oil heating off.


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    #5
    Merriecrimbo
    Registered Users Posts: 4 ✭Merriecrimbo


    I'd love if they took my back boiler out too.


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    #6
    Merriecrimbo
    Registered Users Posts: 4 ✭Merriecrimbo


    FishOnABike wrote: »
    If the back boiler on the fire heats the water in the central heating system why would you want the oil fired boiler running too? The boiler thermostat will probably be open when the central heating system is brought up to temperature by the back boiler so even if switched on the oil boiler won't fire.

    It doesn't heat the central heating system, only a tank of water.


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