We’d like to remind Forumites to please avoid political debate on the Forum.

This is to keep it a safe and useful space for MoneySaving discussions. Threads that are – or become – political in nature may be removed in line with the Forum’s rules. Thank you for your understanding.

The MSE Forum Team would like to wish you all a Merry Christmas. However, we know this time of year can be difficult for some. If you're struggling during the festive period, here's a list of organisations that might be able to help
📨 Have you signed up to the Forum's new Email Digest yet? Get a selection of trending threads sent straight to your inbox daily, weekly or monthly!
Has MSE helped you to save or reclaim money this year? Share your 2025 MoneySaving success stories!

Electricians Advice Please

2»

Comments

  • wssb wrote: »
    Should he not have put all lights and boiler on the same circuit?

    No as you have already been told on your other thread, the boiler must be on the ring main NOT the lighting circuit
    I'm only here while I wait for Corrie to start.

    You get no BS from me & if I think you are wrong I WILL tell you.
  • No as you have already been told on your other thread, the boiler must be on the ring main NOT the lighting circuit

    No it must not....boiler should be on its own circuit to comply with 17th edition regs.

    Whats happening here is.......lights are on 6amp breaker? Boiler wants 3amps and with a few lights on you go over the 6amps so the mcb trpis.

    best to do...

    Isolated circuit
    Test for dead
    Take cable out of fcu
    Put a plug on the end

    Use it for a few days to see if tripping stops

    If it does then you need a new circuit in for the boiler
    If not then something more sinister is wrong...ie faulty cable...loose wire etc..

    Hope this helps
  • macman
    macman Posts: 53,129 Forumite
    Part of the Furniture 10,000 Posts Name Dropper
    Get the boiler power supply properly sorted first by a competent sparky (not the one who changed your CU). Then monitor the boiler.
    No free lunch, and no free laptop ;)
  • sparkieguy wrote: »
    No it must not....boiler should be on its own circuit to comply with 17th edition regs.

    If it does then you need a new circuit in for the boiler

    If you are going to tell me I'm wrong at least get it right

    For starters the 17th isn't retrospective so unless a new circuit was installed when the boiler was changed then it is perfectly acceptable for the new boiler to be connected to the ring main with a switched fused spur @ 3a

    What you are ref to is a water heater over 15 ltrs & because it's draw is likely to be over 2 kW then this would req its own circuit, however because of it's relative low power draw a gas boiler doesn't fall into this category
    I'm only here while I wait for Corrie to start.

    You get no BS from me & if I think you are wrong I WILL tell you.
  • fluffpot
    fluffpot Posts: 1,264 Forumite
    It's fine for a boiler to be on the lighting circuit. I wouldn't do it, but it's not wrong, just not best practice.
  • You said.....boiler must be on ring! This is miss leading...
    Agree regs are not retrospective but bad practice to put a boiler on another circuit.. but thats my veiw :)
This discussion has been closed.
Meet your Ambassadors

🚀 Getting Started

Hi new member!

Our Getting Started Guide will help you get the most out of the Forum

Categories

  • All Categories
  • 352.9K Banking & Borrowing
  • 253.9K Reduce Debt & Boost Income
  • 454.7K Spending & Discounts
  • 246K Work, Benefits & Business
  • 602.1K Mortgages, Homes & Bills
  • 177.8K Life & Family
  • 259.9K Travel & Transport
  • 1.5M Hobbies & Leisure
  • 16K Discuss & Feedback
  • 37.7K Read-Only Boards

Is this how you want to be seen?

We see you are using a default avatar. It takes only a few seconds to pick a picture.