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Discuss Gas Boiler broken, please help in the Central Heating Forum area at

  1. Milloy112

    Milloy112 New Member

    Our boiler stopped working a few days ago so we got a few engineers out to price a new one , the first one said to upgrade to a Combi boiler as we have a system that’s about 23 years old and said it would be no bother to set it all up. The second guy we mentioned for pricing a combi just on the basis that it would be better than just getting a like for like system but he said the radiators would not handle it so it would not be possible without putting whole new system in ? Only reason I am now wary is my gran feels she was told something similar several years ago so I thought I should check with a forum.. I will attach a picture but does that sound right? If you need any more info just ask

  2. king of pipes

    king of pipes Trusted Plumber GSR

    I would not put a combi on that system , it's a like for like swap or rip out and a new full install if funds allow . Kop
  3. Milloy112

    Milloy112 New Member

    Thanks , just thought I should check , we still have the gas board to come out but that helped
  4. sammathias

    sammathias GSR

    Yeah, would always recommend new rads and pipework on a system that old. However people do fit combis onto existing old systems.
  5. robj20

    robj20 Member

    Just done the same thing myself, but fitted the pipework and radiators myself. All the reading i did said its not ideal, from the system leaking due to the higher pressure but mostly that old system were designed around a much higher flow temperature, not to mention the lack of convectors.
    Most of my rooms required radiators much larger to cope with a lower flow. I did all my calculations based an a flow of around 40-50c. The old boiler used to flow at 80c.
    • Informative Informative x 1
  6. firemant

    firemant Plumber GSR

    I stopped heating work 5 years ago. But until then I fitted MANY conversions to combis. My contract placed the responsibility for bursts on the client. I had TWO problems, over 10 years apart. The first was a rad started squirting mid panel, while I was there and about to leave, the second was my very last heating job before going ion the books. Two rads gave up the ghost. So there is always a possibility, but if a rad pops, it is dodgy anyway, and my go sooner rather than later. The danger is massively overstated.

    Is a combi actually the right choice for you? How many bathrooms / people?
  7. Andrew Philips

    Andrew Philips New Member

    I think you should deffo change to a combi and get whole system changed
    Last edited by a moderator: Oct 13, 2017
  8. Vee

    Vee Plumber GSR

    No need for combi. Cheaper and easier to fit like for like. Just add magnetite filter.
  9. Andrew Philips

    Andrew Philips New Member

    I'd also consider break down cover few good companies out there
    Last edited by a moderator: Oct 15, 2017
  10. Harvest Fields

    Harvest Fields Trusted Plumber GSR Top Contributor!!

    If he changes the boiler and gets a decent engineer to fit it. The boiler will have a decent warranty and no need for breakdown cover.
    • Like Like x 1
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