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Hot water cylinder replacement

Discussion in 'Plumbing and Central Heating' started by iateyoubutler, 14 May 2021.

  1. iateyoubutler

    iateyoubutler

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    Evening DIYnotters :)

    As people will know from my previous posts I have a very traditional system with the vented HWC in the airing cupboard. Back in March I had a new boiler, and everything is working nicely.

    The only snag here is, I have no idea how old my cylinder is - I`ve been in this house for 10 years and it certainly wasn`t new then, so it`s age is anybody`s guess. Now due to this I have decided to splash out (play on words haha!) and have it replaced just for piece of mind as I dread coming home one day to find it has flooded my house.

    Just weighing up the options is like for a like a good idea? Or go for unvented, convert the CH to sealed, and get rid of the roof tanks? I do like the idea of a dry loft as sub zero weather does worry me when it comes to water in the roof, but I don`t like the idea of loads of potential leaks caused by putting the hot water system onto mains pressure and then pressurising the CH system, as it`s all 45 years old now.

    Which is the best path to take because I don`t know......

    Thanks
     
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  3. oldbutnotdead

    oldbutnotdead

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    Your cylinder will last a lot more than 10 years as long as your local water isn't too hard (the cylinder i have upstairs at the mo did 35 years in my first house & has come in very handy here). So don't replace it just cos you think it might fail. Tanks, loft pipework etc won't freeze if they're properly lagged.
    Unvented dhw can be great but check your water supply static & dynamic pressure and flow rate- if you're still on lead pipe from the street you def won't see any real benefit.
     
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  4. Razor900

    Razor900

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    What colour is your existing cylinder?
     
  5. iateyoubutler

    iateyoubutler

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    Thanks for your reply. The water here is really soft, so perhaps that goes in my favour then? :)

    We aren`t on lead pipes here, as the house was built 1977, not sure about the pressure and flow figures. The loft setup was all cut out and replaced shortly after I moved in so is quite up to date where standards are concerned, doesn`t stop me worrying about it though!
     
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  7. iateyoubutler

    iateyoubutler

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    It`s green
     
  8. Razor900

    Razor900

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    Probably around 15 years old. I wouldn't worry about it
     
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  9. iateyoubutler

    iateyoubutler

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    Ok brilliant that`s great news thankyou :)
     
  10. fixitflav

    fixitflav

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    I don't think that's likely. If it does fail it's more likely to weep at one point, which you'll spot, rather than get a major flood.
     
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