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  1. A

    Running cable in cavity

    Agreed - avoid cavity installs wherever possible - but the original query was about an internal cavity and mechanical protection.
  2. A

    Running cable in cavity

    Just been looking at regs for this. Using flexible conduit should provide strain relief and a compliant bend at the top cavity point of entry - that's where most of the mechanical stress would be (reg 522.8.4 and .5). It would also provide protection from falling debris (reg 522.6.2).
  3. A

    Solar??? Eh?

    You might find this link useful: 2: Detection and Measurement of surplus PV | OpenEnergyMonitor
  4. A

    air-water heat pump - any good experiences / recommendations?

    It is an old stone cottage. Extension is well insulated and will have UFH (3 rooms). Currently heated by an old oil Rayburn at one end, a coal/wood burner at the other end, plus electric rads when required. So bit of a mixed bag
  5. A

    air-water heat pump - any good experiences / recommendations?

    Worcester has got me interested in finding out more about an air-water heat pump. Needs to be suitable for a property with 200m2 total floor area. Does anyone out there have any good experiences or recommendations?
  6. A

    complicated solar switch arrangement

    I'm interested in the air-water heat pump option - I will start a new thread with a query about experiences / recommendations
  7. A

    complicated solar switch arrangement

    Great info Worcester, thanks very much My programming skills are a little rusty - but the main problem I have is [lack of] time :sad: Interesting you mention the wet ufh + heat pump option. The main constraint we are working to is <= 35mm screed depth (15mm for finished tiles - ie, ffl cannot...
  8. A

    complicated solar switch arrangement

    System no yet purchased - we still have the floor to sort out (insulation + screed + ufh + tiles) Will probably go for Warmup StickyMat (150W/m2), or similar. 3 rooms, each with a separate element and controller. Probably go for Warmup 3IE stats, or similar - room stat in unit + floor stat
  9. A

    complicated solar switch arrangement

    appreciate that :santa1:Electric ufh: 3 zones: 1200W / 2250W / 1800W (150W/m2).
  10. A

    complicated solar switch arrangement

    thanks Worcester - would you be happy to share schematic for that job?
  11. A

    complicated solar switch arrangement

    4kW PV system - for the switch, haven't yet decide between Immersun, Solic, Intelligent Immersion, Wooldridge or Solar Immersion. Electric ufh: 3 zones: 1200W / 2250W / 1800W (150W/m2).
  12. A

    complicated solar switch arrangement

    Does anyone have any suggetsions on which gear would be best for this arrangement. Need to use a solar switch to feed an immersion heater and 3 zones of UFH. Outline attached. Feed from the solar switch needs to be routed to the UFH zones or the immersion heater - controlled from a room...
  13. P1060964_900x1200.JPG

    P1060964_900x1200.JPG

    • ajn9000
    • Media item
    • Comments: 0
    • Category: Professional Electrician
  14. A

    Solar Panel immersion heater automatic switch.

    Take look at LEM ct eg HX 05-P/SP2
  15. A

    Solar Panel immersion heater automatic switch.

    Take a look at LEM current transducer eg hex 05-p/sp2

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