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2 room stats in a normal open vented system

Discussion in 'Plumbing and Central Heating' started by jbenny1, 4 Feb 2013.

  1. jbenny1

    jbenny1

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    I'm looking into a way to prevent my central heating from coming on if my log burner is lit in the lounge. I basically want to install a 2nd room thermostat in the lounge above the log burner, so that when the fires lit and it quickly gets above 25C it will prevent the normal room stat in the bathroom from firing the boiler to increase the house temperature, but instead allow the fire an hour or 2 to heat the whole house up. The problem I've got at the moment is the heating keeps coming on when the fires lit and with a 18KW boiler and 9kw log burner the house is quickly too hot and we end up opening windows upstairs all the time to cool down when we go to bed because the boilers been on as well. Does anyone know of a way to wire a 2nd stat in series with the first to act as a limiter?
     
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  3. m1key00

    m1key00

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    Roomstats are normally connected to motorised valves to create zones, why complicate things with a second stat. Just move the existing stat to the lounge?
     
  4. petertheplumber12

    petertheplumber12

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    Or change the existing room stat to a wireless one then you can put it in whichever room you are in.
     
  5. CBF

    CBF

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    or just turn it down when you light the fire :rolleyes:
     
  6. matt1e

    matt1e

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    you could er
    wire it in series with the other stat maybe ;)

    Matt
     
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  8. Whitespirit66

    Whitespirit66

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    Why is the stat in the bathroom?
     
  9. matt1e

    matt1e

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    Good question
     
  10. jbenny1

    jbenny1

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    the stats in the bathroom, as the towelrail has no trv fitted and is the boiler overrun (heat dump rad) so you get nice warm dry towels when ever the boilers on HW or CH summer and winter. If i move the stat to the lounge if the fires not lit the room stat will have little or no effect in a room with a trv fitted.
    I don't want to keep adjusting the stat everytime i light the fire as sometimes it goes out when we are out and it would be handy if this would trigger the CH to come on. Why are all kettles fitted with auto shut offs now, the old fashion ones simply boiled and you turned them off manually. I'm looking at a simple labour saving modification.
     
  11. Whitespirit66

    Whitespirit66

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    Maybe an idea to move stat to lounge. Just leave the TRV in lounge on full and let the room stat control temp. As the stove heats, the stat will cut the boiler.

    Or have I missed something?
     
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