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  1. S

    35kW combi, 15mm CH pipes, 22kW rads - problem?

    Thanks to all, it’s really helped and I understand more now. I will bite the bullet and get 22mm pipes. The plumber asked me to send him a schematic diagram (which I’d like to do for myself anyway). Does anyone know if there’s a decent (free) drawing tool available? I looked at MS Paint but...
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    35kW combi, 15mm CH pipes, 22kW rads - problem?

    Sorry, would you mind explaining what that means?
  3. S

    35kW combi, 15mm CH pipes, 22kW rads - problem?

    No info, sorry. He ran two taps and used a container that was overflowing as it filled. I didn’t see him do the pressure but he mentioned about it being okay, and said something about it probably having a limiter on it, so no problem.
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    35kW combi, 15mm CH pipes, 22kW rads - problem?

    Is there any heating system that will work off 15mm pipes? If so might be cheaper to change the boiler than the upheaval of changing the pipes?
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    Side lamps controlled by ‘light switch’?

    Thanks for the replies. Yes. I use smart bulbs already. I’ll stick with them!
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    35kW combi, 15mm CH pipes, 22kW rads - problem?

    There’s a 22mm to 15mm reducer under the floorboards below the boiler. I’m tracing it all now and will sketch it out. Thanks for everyone’s input.
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    35kW combi, 15mm CH pipes, 22kW rads - problem?

    Thanks for the replies. Yes, he said flow and pressure was okay but didn’t give me any readings. It’s a mix of plastic and copper pipe as an extension has been added.. I replaced the 15mm copper hot and cold supply with 22mm Hep. For the CH the extension was in old 15mm Hep which has been...
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    35kW combi, 15mm CH pipes, 22kW rads - problem?

    I’m feeling despondent so please go easy on me. I’ve swapped 15mm hot and cold pipes for 22mm and where I could get access replaced the old 15mm CH pipe with new 15mm Hep20. I’ve got a 35kw combi boiler that feeds a 5 bed house including loft conversion. There’s a main bathroom with separate...
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    Side lamps controlled by ‘light switch’?

    Just an idle thought… In an ideal world I’d like the side lamps in my living room (which are plugged into the double sockets) to come on via a switch as you enter the room i.e. same as how you control the overhead light. (I rarely have the overhead one on.) A fused spur would look awful but...
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    Replace red and black 10mm cable to loft conversion?

    Thanks, it does work so I’ll leave it be. Everything else in the CU is blue and brown so it’s not too ancient.
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    Replace red and black 10mm cable to loft conversion?

    Yes, what’s the point in all circuits tripping when just one could. So it’d be more useful to run a lighting cable and a socket cable to the loft? This may be where I feel out of my depth and leave well alone. Do the cables run to the loft CU or does that become redundant? If so would you...
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    Replace red and black 10mm cable to loft conversion?

    Thanks Jurassicspark. So does that mean it would be better to have the loft lighting and sockets as two separate circuits from the main CU and forget about the loft CU?
  13. S

    Replace red and black 10mm cable to loft conversion?

    No, there’s plenty of space in the CU. Getting more cable through the back might be a challenge though. Looks like it. Shiny red and black. Had to Google that and still don’t understand!
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    Replace red and black 10mm cable to loft conversion?

    Thanks all. I just looked at Building Regs and it looks like the conversion was done in 1991. I’ve got no problem with it, but I wondered if it’d give a better impression down the line if the house was ever sold.
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    Replace red and black 10mm cable to loft conversion?

    Hello I’m doing some renovation and I have a loft conversion which has its own small CU for its light and sockets. It’s fed by a 10mm cable from the main CU on its own RCBO. However it’s black and red and I wondered whether it’s considered old. I obviously won’t be attaching it, but I could...
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    Gardz thick streaks

    Belated thanks Wayners. I’ve fixed it now. I originally didn’t use a brush because it was a small area and thought it’d be a faff cleaning up. Lesson learned, it was much easier than paint. I put it on with a roller second time around and the Johnstones Perfect Matt went on like a dream...
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    Gardz thick streaks

    So I brush painted a new, dry bare plaster wall with Gardz. I started part way through one tin and as I got to the end I realised it was a thicker consistency. I obviously didn’t stir it properly. So now I have a wall with some thick steaks of Gardz. Should I sand it or will it the paint...
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    Quality of base coat?

    So I’ve applied Gardz to one wall to see how it goes on and works with the paint. It’s so watery (and expensive) that I don’t think I’ll be using it on the ceiling. Instead I’ll do a mist coat with the Jonhstone’s Covaplus Matt. The instructions say up to 10% water for a mist coat. That...
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    Pipework for adding unvented cylinder to combi

    I buy into that train of thought too. Don’t wanna be standing outside the shower too long waiting for the hot water to arrive
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    Pipework for adding unvented cylinder to combi

    Unfortunately the ceiling run is 15mm copper in that woolly blanket type insulation. I think it might be easier to change the pipe run than butcher the cupboards downstairs. It means it would go in a larger cupboard upstairs which is further from the boiler but closer to the en suites. How...
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