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New central heating / water controller

Discussion in 'Electrics UK' started by newboy99, 10 Oct 2010.

  1. newboy99

    newboy99

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    Hi Guys
    I need to replace an old 'Boss Therm' central heating controller which is 'on the blink'.
    Probably over 20 years old and I can't find any Google references for it.

    Am I right in thinking I can use any one of the 'decent' controllers sold by screwfix @ c. £80 ?
    Also, any tips or things to watch out for ??
    Many thanks for your help
     
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  3. PrinceofDarkness

    PrinceofDarkness

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    Tips or things to watch out for?

    Don't pay eighty quid for a controller that should cost you less than half that price!


    Lucia.
     
  4. holmslaw

    holmslaw

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  5. PrinceofDarkness

    PrinceofDarkness

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    Possibly due to the newcomer here ^ who clearly doesn't know the use of the question mark - or indeed, how to stay on topic for the sake of the O/P.


    Lucia.
     
  6. Taylortwocities

    Taylortwocities

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    Has a mbwa mwitu crept into your grass hut rafiki yangu?
     
  7. PrinceofDarkness

    PrinceofDarkness

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    Shall we stick to the point?


    Lucia.
     
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  9. newboy99

    newboy99

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    I haven't got a friggin clue as to what you or our 'friend' in Zaire are on about.
    Perhaps it's me ?
     
  10. PrinceofDarkness

    PrinceofDarkness

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    Newboy99: If you'd care to describe your current system, I'd be pleased to advise you on a suitable replacement controller - at possibly a fraction of that cost that you mentioned.

    My former posts were directed at others here - and not to you -just so we might stick to the original point.

    Read post No.3, and you'll seee what I mean.......


    Lucia.
     
  11. newboy99

    newboy99

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    Thanks Lucia
    The system is a standard combined hot water / central heating system.
    There's a wired temp. thermostat in the hall and an upstairs hot water cylinder fed from a cold water tank in the loft.
    I believe the central heating is of a standard 'indirect' type, the boiler is about 7 years old,
    plus of course the usual pump and motorised valves etc.
    I really just wanted to check that these sorts of controllers are fully interchangeable or whether there are likely to be problems switching over.
    British Gas have quoted £168 to do the job but I'm just wondering whether if I buy a suitable controller, my local 'Sparks' could be expected to do the job for me ?
    Presumably there's no 'Gas' knowledge required.
    If he can do it, I can't think that it would take more than a couple of hours for him and at his very reasonable rates, I reckon I could save £80 - £90 !
    But then I haven't got shares in British Gas !
    Anyway, appreciate your comments and thanks again for your help.

    PS : where the **** is Zaire - and why ????
     
  12. skenk

    skenk

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    If BG are quoting £170 you can almost certainly save a great deal by using an independent or diy. Unfortunately there is no such thing as a 'standard combined hot water / central heating system' we will need more info. I just bought one of these for my combi boiler: http://www.heatmisershop.co.uk/products/Programmable-Thermostat-%2d-Heatmiser-PRT.html which is a combined room thermostat and central heating controller. A model which can control immersion heater cylinders (hot water) is also available, as are cheaper but less pretty alternatives.
     
  13. PrinceofDarkness

    PrinceofDarkness

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    nb99: This seems a straightforward replacement part for an orthodox system - and should be simple plain-sailing for either you, as a DIYer, or for your local electrician.

    A standard 2-channel programmer (eg Danfoss Randall) should cost you not much more than £32.00. Almost any programmer will do you, for this basic task.

    If you'd like to tackle this as a DIYer, I'd be pleased to advise you further, step-by-step........


    Lucia.
     
  14. newboy99

    newboy99

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    Many thanks Lucia, that's a big help.
    I'll talk to 'my electrical man' and see what he thinks.
    Thanks again !!!
     
  15. DIYnot Local

    DIYnot Local

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