Timer Device

  1. Parm

    Parm I have fun doing stuff

    Messages:
    8,531
    Location:
    Towcester
    I need to switch an immersion heater on and off over the course of a 24hr period

    Something like 2 hrs in the morning, an hour at lunch, then in the afternoon and a few hours in the evening

    I’ve looked at the plug in digital timers. They provide enough timer options but only really suited for lighting applications

    I’m aware of central heating timers, but they only switch twice at dat. At least the one I know about do. Also are they capable of handling an immersion heater?

    Should have said it’s currently just wired up with a 13 amp plug.

    Can some one point me in the direction of a suitable timer that gives multiple switching options and can handle an immersion heater.

    I suspect it will be useful to know size and Kw size capacity?

    I’ll update with this Tommorow as I’m away with work tonight

    So, suggestions recommendations please
     
  2. brightspark

    brightspark Member

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    26,339
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    yarm
  3. Shedendman

    Shedendman Member

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    3,493
    east sussex
    rockweasel likes this.
  4. brightspark

    brightspark Member

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    they don't want to be on a 13 amp plug they will burn out and overheat :(they need to be 16 amp
     
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  5. dobbslc

    dobbslc Forum Supporter

    Messages:
    4,175
    Location:
    Hertfordshire UK
    The digital one @brightspark linked to is the one I fitted to my 3kw immersion, so far so good! It has at least 3 on off settings.
     
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  6. Parm

    Parm I have fun doing stuff

    Messages:
    8,531
    Location:
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    Thanks Brightspark. That’s what 5 mins of googling suggested but I wasn’t sure of which type of timer

    Digital it is, you all Know I’m , rubbish with modern technology.

    Be be prepared for further questions this weekend

    I blame you all, lol
     
  7. puffernutter

    puffernutter Puffernutter

    Messages:
    1,149
    Location:
    Wiltshire
    @Parm, I have a spare din rail mounted electronic one - would you like it?

    Cheers

    Peter
     
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  8. Parm

    Parm I have fun doing stuff

    Messages:
    8,531
    Location:
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    Hi Peter

    Thanks very much for your offer.

    I need this fairly quickly, (ie as soon as I get home tommorow) so I had already done a click and collect on line with screwfix by the time I read your message

    Cheers Parm
     
  9. Parm

    Parm I have fun doing stuff

    Messages:
    8,531
    Location:
    Towcester
    Right, here goes

    I have timer unit suggested above in my hands. Cable from immersion won’t reach where I want to fit timer, so this needs to be changed. Fairly simple

    Reading the web (dangerous but useful) suggested I need heat proof 2.5mm flex. Is this correct?

    Currently it’s lashed up to ordinary 2.5mm flex and a 13amp plug, don’t think this is correct. Was like this when I bought the house
     
  10. mtt.tr

    mtt.tr Member

    Messages:
    555
    Essex England
  11. brightspark

    brightspark Member

    Messages:
    26,339
    Location:
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    1.5mm heatproof flex will be ok no need for 2.5mm its less than 16 amp
     
  12. mtt.tr

    mtt.tr Member

    Messages:
    555
    Essex England
    So within reason 2.5 will take 24amps. Allowing for heat 16 comfortably.


    I will check the regs mind.
     
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  13. Parm

    Parm I have fun doing stuff

    Messages:
    8,531
    Location:
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    So it has to be heat proof?
     
  14. brightspark

    brightspark Member

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    Location:
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    yes otherwise the insulation will melt and peal back
     
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  15. Parm

    Parm I have fun doing stuff

    Messages:
    8,531
    Location:
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    Ok cool

    Just as well I decided to have a look at this

    Previous owner/builder, who ever has just used a chopped up extension lead with fused 13 amp plug into a double socket in the airing cupboard.
     
  16. mtt.tr

    mtt.tr Member

    Messages:
    555
    Essex England
    Multicore 90°c thermosetting insulated. IMG_20190913_180811_7.jpg
     
  17. dobbslc

    dobbslc Forum Supporter

    Messages:
    4,175
    Location:
    Hertfordshire UK
    I've used 2.5mm on mine. 1.5mm just don't feel right on a 3kw heater:o
     
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  18. mtt.tr

    mtt.tr Member

    Messages:
    555
    Essex England
    Especially give it runs for a long while at a time and doesn't cost much more
     
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  19. Parm

    Parm I have fun doing stuff

    Messages:
    8,531
    Location:
    Towcester
    Yep, difference was pennies, so just went for the 2.5mm

    The proper stuff is very different from what’s currently fitted
     
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  20. Parm

    Parm I have fun doing stuff

    Messages:
    8,531
    Location:
    Towcester
    What am I looking at here?
     
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