Is our boiler really dead? (oil combi)

Discussion in 'Plumbing and Central Heating' started by redmosquito, 11 Jun 2018.

  1. redmosquito

    redmosquito

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    Hi all

    We have an old Worcester 20/25 oil fired combi. Not sure how old it is but I'd guess about 23/24 years. It started losing pressure, gradually getting worse over a few months, now it won't hold even for an hour or 2. A local plumber came and took it apart, and said that the water jacket was leaking. We filled the system up a bit, and soon after we had a big puddle collecting in the tray below the burner. He also showed us inside the combustion chamber where it was fairly rusty and damp. His opinion was that it's terminal and time for a new boiler. So basically just looking for some more opinions/confirmation that it's not repairable or not worth trying.

    It's not a condensing thing and it's right in the middle of the house so replacing it is going to be a fairly big job, condensate pipe run and new flue etc. all quickly adds up.
     
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  3. ReganAndCarter

    ReganAndCarter

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    I don't know much about oil, but if an oil boiler has back end rot and is over 20 years old, it's scrap. You've probably had more than your money's worth out of that boiler. Your plumber is correct, time to bite the bullet.

    This boiler is no more! It has ceased to be.
     
    Last edited: 11 Jun 2018
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  4. Dan Robinson

    Dan Robinson

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    It sounds pretty fecked.
     
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  5. muggles

    muggles

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    Yep, that's had it, time for a new one
     
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  6. redmosquito

    redmosquito

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    Alright, 3 solid answers within an hour, time for a new one it seems!
     
  7. D_Hailsham

    D_Hailsham

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    If you can meet the criteria set down in the attached pdf, you will not have to install a condensing boiler. Your installer carries out the assessment.
     

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  8. muggles

    muggles

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    As far as I'm aware, that procedure has now been superseded by a much more stringent one... don't have sufficient Internet to search for it at the moment though!
     
  9. muggles

    muggles

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    Have a look at Hounsfield boilers.
     
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  11. Dan Robinson

    Dan Robinson

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    Even with that old document, I can't think of a job where a place qualified to an exemption.
     
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  12. redmosquito

    redmosquito

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    Whether the old document or a newer one, would it still apply in Scotland?
     
  13. D_Hailsham

    D_Hailsham

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    I thought of that, so I checked. The document is still valid.

    The installed oil boiler must have a minimum efficiency of 82% (combi) or 84% (regular), measured according to SEDBUK 2009.
     
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  14. D_Hailsham

    D_Hailsham

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    I have attached the Scottish version. The required efficiencies are higher than in England - 84% for Combi and 86% for Regular boilers
     

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  15. redmosquito

    redmosquito

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    We might qualify. Doesn't seem to be much choice on non condensing oil combi boilers though. The Mistral ones are a little too wide to fit in the gap where the current one is, and Hounsfield doesn't seem to have presence anywhere near our area, if they even do combis. Could consider a cylinder and a standard boiler, but by the time we've destroyed enough of the house to wedge it in somewhere I doubt it would be any easier or cheaper.
     
  16. Combicert

    Combicert

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    Deader than conversation with a stranger on the underground
     

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  17. muggles

    muggles

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    Ah, apologies, missed that it was a combi. Hounsfield deliver nationwide but don't make combi boilers. I think you'll end up with a condensing one. What width do you have available?
     
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