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Replace an Economy 7 timer switch with a smart device

Discussion in 'Electrics UK' started by Paulj250, 6 Jun 2020.

  1. Paulj250

    Paulj250

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    Last year I had a new immersion heater installed and it came with an E7 timer switch. This year I’ve switched to an Agile electricity tariff and to take the best advantage of this I need a WiFi enabled smart timer/switch. The problem is that the current timer switch controls two heating elements, the E7 timer and a boost switch. I can only find smart devices that can handle one element.Does anyone know a smart device that could handle this or have any other reasonable solutions? Thanks
     
  2. crystal ball

    crystal ball

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    I suppose the easy way would be to use two switches
     
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  4. Paulj250

    Paulj250

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    Thanks. However, thinking about it I don’t need the ‘boost’ facility, it’s redundant with my new tariff. Can I just not connect the ‘boost’ heater element or do I need both connected?
     
  5. flameport

    flameport

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    You could just connect the lower main element and not bother with the top (boost) element. Obviously there is no way to use the upper element to heat a smaller amount of water quickly.

    Or connect the lower element to the wifi switch and connect the top element to a separate 1 hour timer such as https://www.tlc-direct.co.uk/Products/SMSTBT4.html

    Or fit a BX2000 connect both elements to it, wifi switch to the 'e7' input and permanent power to the other input.
    https://www.tlc-direct.co.uk/Products/HOBX2000.html
    That will allow a boost at any time, and if the wifi switch is on, it will override the boost and only power the lower element.
     
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