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  1. bhm1712

    By Law I must have new rads

    Fitting an “oversize” hot water cylinder won’t make 45-50 degrees of heat pump flow temperature hotter.
  2. bhm1712

    Three phase, split phase, or single phase when no rotating machines why three phase?

    To answer in the most simplest way, 3 phase means you get more power, at a lower current and therefore less conductor material required (smaller cables) and so costs are lower. There are technical reasons why 3 phase has advantages over single phase, but for the purpose of discussing EV charging...
  3. bhm1712

    Moving a plug socket 2ft - bare wago in backbox?

    If I recall, it means the connector is designed for 0.08-2.5mm2 solid core cable and up to 4mm2 flexible stranded cable.
  4. bhm1712

    Lap vent exhaust?

    No, they allege it sits under the tiles but above the membrane or bitch felt and so vents out through the gap between the tiles, membrane and wooden slats (a few piccies attached from the website)
  5. bhm1712

    Lap vent exhaust?

    Do these do what they say on the tin? Or snake oil? https://lapventsales.co.uk/product/exhaust-lapvent/
  6. bhm1712

    Light fitting

    Welcome to the world of arty farty modern light fittings which the designers chose form over function. This is how they all are and yes - they expect you to put all of the other wiring into a terminal block and shove it up into the ceiling void above the fitting.
  7. bhm1712

    Using MF Junction Boxes

    it’s quite simple, you push the earth sheathing out of the way and grip the CPC and push it in. Once done the earth sheathing will spring back into place. If you can’t, then the sheathing is too long.
  8. bhm1712

    "Savings" calculation for solar PV with storage batteries?

    Resurrecting an old thread but thought it worth mentioning that I’ve now installed a “backup box” to our solar and battery system which is basically a changeover contactor box that allows off grid usage and disconnects from your the grid. My inverter is capable of supplying 5kw in “off grid”...
  9. bhm1712

    Asbestos in loft?

    The fibreglass isn’t particularly old, at least - the top layer isn’t which is the one I’ve moved out the way. The top layer was done in 2011 by my mother! Must admit, fibreglass doesn’t scare me like asbestos does. Got a mask and disposable suit coming tomorrow so I can get this suspect...
  10. bhm1712

    Asbestos in loft?

    Might be cos of the amount of zoom I used lol. Asbestos scares me to **** to I ain’t getting closer just in case. I’ll try get a better image.
  11. bhm1712

    Asbestos in loft?

    If you click on it, it does open up into a decent res image.
  12. bhm1712

    Asbestos in loft?

    To you experienced builders does this look like asbestos sheet to you? Unearthed after moving some fibreglass insulation out of the way. Wondering why it would have been used in this way if it is asbestos.
  13. bhm1712

    Economy 7 confusion

    On most modern economy 7 installations, with digital or smart meters - as you say, there is no “switching” done. The rate change is done on the meter based on the time and it will display the 2 rates separately. There is no longer a need to fit separate off peak circuits. Your entire dwelling...
  14. bhm1712

    FUSEBOX MCBs

    No.
  15. bhm1712

    What are these components

    The confusion I’m referring to is people saying the top RH item is a wireless receiver for Hive.
  16. bhm1712

    What are these components

    I think people are getting really confused and offering bad advice here. The item “top right” and the one highlighted in the red circle is not a receiver for a wireless thermostat. It’s a Siemens RWB29 two channel programmer. The receiver for a thermostat is top left of the first image. If...
  17. bhm1712

    Breathable Roof Membrane - Recommendations

    How about this one? https://www.roofingmegastore.co.uk/protect-viking-air-type-lr-air-and-vapour-permeable-underlay.html
  18. bhm1712

    Armoured Electrical Cable

    do they really!?
  19. bhm1712

    2.5mm cable for extra sockets

    Whilst it’s not 100% guaranteed to confirm it for a plethora of potential reasons, usually one can say with some level of confidence that if a socket has 2 sets of cables coming into the back box, both connected to the terminals of the socket itself (both browns/ reds to live, both blues /...
  20. bhm1712

    2.5mm cable for extra sockets

    It is perfectly allowable to run a spur socket from an existing ring final socket in 2.5mm, regardless of whether the existing socket is a single or a double. My understand of what you have done (added 3 single Spurs from 3 different existing sockets) is that you have done just that. The only...
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