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Discuss Dedicated circuit for Boiler Power in the Central Heating Forum area at

  1. Murdoch

    Murdoch Active Member

    When you just change a boiler?
    • Useful Useful x 1
  2. ShaunCorbs

    ShaunCorbs S. Mod Trusted Plumber GSR Top Contributor!!

    • Agree Agree x 1
    • Funny Funny x 1
  3. Vee

    Vee Plumber GSR

    So what your point?
    We obviously agree that if the OP wishes to chose Best Practice over minimum requirement he can.
    The choices you offer to your unsuspecting customers is your perogative.
    Sincerely hope you are reading the Building Regs before advising them on plumbing and heating.
    • Dislike Dislike x 1
  4. Murdoch

    Murdoch Active Member

    Got smacked . so when our boiler needs replacing our house has to be zoned ?

    Most new boilers I see are simple like for like changes ...

    One refurb I’m on, a flat isn’t zoned ...neither was the last house refurb I was on .. what are the GSR s upto then ?

    Most new installs in refurbs are zoned . but not all ..
  5. ShaunCorbs

    ShaunCorbs S. Mod Trusted Plumber GSR Top Contributor!!

    Depends on system should give you an insight below

    Combi boilers your fine
    Heat only needs an s plan installing
    Floor by floor zoning house over 150sq m
  6. Murdoch

    Murdoch Active Member

    Thanks - a useful "insight" - I'll have a chat with my GSR mates as and when I see them..

    Our house is over 150 sq m, is S plan but has a hot water tank.... thankfully the boiler is under 5 years old.

    That said there are a few GSR's that don't realise a number of new boilers need Pl & Sl ..
  7. ShaunCorbs

    ShaunCorbs S. Mod Trusted Plumber GSR Top Contributor!!

    Sorry to tar a few sparks that don't think ahead (only installing one 3 core instead of two) helps a lot when you change an old that didn't require pl or pump live

    One of my pet hates
    • Funny Funny x 1
  8. Murdoch

    Murdoch Active Member


    If in doubt I run in 5 core cable from the wiring centre to the boiler - I don't keep 4 core!
    • Winner Winner x 1
  9. Murdoch

    Murdoch Active Member

    I don’t advise about heating unless it’s 100% electric ..
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