MrMagic

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About MrMagic

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  1. Kudos to you @pocster for finding someone willing to work with you on the install, it seems like a sensible and pragmatic approach you've got going on there with photographic evidence and such. Pulling cables and doing back boxes is donkey work at the end of the day (no offence intended) so provided you're in agreement with the sparky theres no reason they can't be off earning elsewhere whilst you do the more manual work. (Usual disclaimers apply, if unsure seek professional assistance, know your limits, follow the regs, and please please don't forget grommets on metal back boxes!! etc blah blah)
  2. Yep, IR is the test that'll show up the gremlins.. even little things like dragging a cable through or over something causing a nick in the insulation is enough to warrant further investigations (depending on the reading). Don't be tempted just to pull a cable through or over a joist, feed with one and guide/pull with the other.... I know this is common sense for most people but I've seen T&E back to bare copper when installed badly - rip and replace in some instances.
  3. Typically first fix is just get the wires in and leave them normally untested. Then when you're counting down the weeks to move in you'll find a nail or screw through your cooker circuit or something and have to smash a big hole in the wall to get at it... 😆
  4. @vivienz - which inverter/charger did you get fitted in the end? Also looking at a LUX Power / Pylontech system at the moment...
  5. @PeterW - what kind of flow rates would you get through a single 10" polyphosphate cart? I've been looking at the spec sheets but they all seem to omit flow rate. Essentially I have my main incomer split, one goes to feed the combi for DHW, the other provides the 'cold' feed to the rest of the house... I'd have to install (at least) one 10" filter on each feed... any ideas if that would inhibit the flow much? Simple (tightarse) moneysaving - £250+ on a pair of combimates or £50 on a couple of 10" filters and poly refils.
  6. Posted this before I think but it's worth having a flick through the CEDIA guidelines on home wiring - http://www.cedia.org/files/file/smart-home-recommended-wiring-guidelines-eng-press.pdf - Even if it just gives you a little inspiration its worth a quick read. Re: cabling types - for 99% of residential installs I expect cat5e is really more than enough but if I was doing it today i'd look towards cat6a, 10Gbit/s* over 100m should do most people!! (Incidentally to achieve the full 'spec' of cat6a (and above) it has to be terminated properly and matched with the same category patch leads etc. It's not just a case of crimping on a RJ45 connector this time) Heres some cable p*rn from installs I've worked on to inspire -
  7. Also watching this topic with interest - have been following it on DHDs main site for a while - similar situation, 'fabric first' completed as far as possible for the moment (but will continue slower), SAP gone from F32 to B81. As with a lot of people, relatively new combi, solar PV but no place to 'dump' the excess during the summer. Also looking to continue to push our carbon footprint down. From the SAP - Est DHW - 2,323 kWh/yr Est CH - 11,944 kWh/yr From the bills -12,760 kWh/yr gas input to the house Estimated split based on monthly readings, extrapolating from summer months etc - DHW - 2,857 kWh/yr CH - 9,903 kWh/yr Average DHW daily requirement of 7-8kWh, this seems within the spec of using a SA to either shift the load fully or a significant part of it. Solar exports exceed this during the 'solar' season and I'd also be half tempted to charge it on a TOU tariff like Octopus GO or Agile - certainly when Agile is at or below 3.75p/kWh it will be more cost effective to charge the Sunamp rather than burning gas (estimate based on gas of 3p/kWh at 75% efficiency = 3.75p target price for change over). Half tempted to ditch the lot and switch to a heat pump but best stick to more realistic aspirations for the moment!! Keep up the good work @DamonHD (..incidentally our paths have crossed before kind of..."where vision gets built")
  8. The most bonkers thing is that TP actually own Toolstation, so why the insane price differences god only knows... Gave up with builders merchants a long time ago, tend to use online 'brokers' or eBay if I can plan ahead, it all turns up on a TP/Jewsons/a-n-other lorry at the end of the day anyway! The only one I've been to recently was CCF for an obscure plastering product (Knauf Betokontakt) although even thats now in TS as 'blue grit'
  9. Sorry had to get this one on to 'paper' - I know the maths has been done on here to death, but I still find it fascinating that even with it being -2degC out this morning my little A2A HP can pump out lovely warm 20+ degree air. I hope more people switch over to them (designed and installed properly of course), even A2A ones which are so simple and effective. MM.
  10. +1 for Sonos - you can also control it locally, i.e. with no need for the 'cloud' meaning that should they ever go belly up (or your t'internet is down), you'll still be able to use the equipment.
  11. @SteamyTea - yes this is available as an API. They publish the rates a day in advance so you can schedule in any automations / predict / charge your 'stores' accordingly. If you don't want to program I believe they also have an integration with IFTTT. API documentation - https://developer.octopus.energy/docs/api/ Alternatively they have an E7 'like' tariff with 'GO', primarily aimed at EV drivers which gives you 4 hours of 5p leccy between 12.30 and 4.30am and then an approx 14p/kWh day rate
  12. If you're on the Octopus Agile tariff you can take advantage of some of these lower wholesale rates - theres a great tool here that shows you the historical data - https://www.energy-stats.uk/octopus-agile-southern-england/ Unfortunately the 30min samples are not shown that far back but you can see the minimum price for 8/12/28 was -2.43p/kWh, 25/12/18 was 0p/kWh and more recently 11/10/19 was 0.36p/kWh so cheap leccy can be found if you can load shift. The flip side of this tariff being the 4pm - 7pm peak prices are high if you can't shift your usage out of this window. I think this is what appeals to me with some form of 'battery' storage to make use of the cheaper overnight rates and then utilise that energy throughout the day. Living in a terraced house my options for 1000L Akvaterm type stores are somewhat limited so need something simple - if someone can crack the combi replacement with another suitable box type conundrum then I will happily switch...
  13. Indeed it's a shame that for anything to be 'sexy' these days it has to have a cloud attached... fingers crossed local APIs will be provided so it doesn't end up being dumb
  14. Was randomly trawling t'internet and came across https://tepeo.com/ - linked via Octopus energy so seems to have some credibility. The website is a little devoid on detail but it seems to be using storage heater 'type' technology for energy storage, resistive heating for charging. Interesting claims around storing >40kWh of heat energy and with a higher energy density than PCM storage. I've dropped them an e-mail to find out more but would be interested to hear if anyone else has been in contact with them. MM.