BMcN

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About BMcN

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  1. I'd say upside down, the first lip should divert the water around the lip for the vented part. Also I presume that is the fixing hole at the bottom.
  2. I went for white cement, silver sand and white chip wet dash. Gives a bright white finish without painting and far cheaper than k-rend or similar.
  3. BMcN

    Dimmable LED

    I have just installed these throughout the house. They work perfectly with Knightsbridge trailing edge dimmer. Dim right down to nothing more than a slight glow. I ended up going with BG electrical sockets and they only do leading edge which is causing a flicker at maybe 20%. I have ended up ordering the knightsbridge ones and some blank BG faceplates, which I will drill and install the trailing edge dimmers to. Edit, sorry I just reread and see you are wanting to change the bulbs only so my reply probably not very relevent. 😂
  4. Thanks for the reply. Did you prime the floor? And Tilemaster Setaflex below ditra then for tiles too?
  5. I am looking to tile two thirds of my downstairs. I am looking for some advice on decoupling and which adhesives to use. The screed is cemfloor (cement based flowing screed). I see Ditra mentioned a lot. Is there a massive advantage to it over something like this? Also, are they suitable to cross from one screed section, over the 4inch block and onto next screen section? I would prefer to not have a joint as one will be in the family room open plan area. Next what adhesive both below then on top of the decoupling? (tiles will likely be 600mm porcelain).
  6. I've just checked mine and it's not a buffer, it's a 30L volumiser. No stat on this. I have installation pack 2 from the pdf attached. grant-aerona3-installation-packs-january-2020.pdf
  7. Yes there is a buffer too. @PeterW not 100% to be honest - it heats the DHW till the cylinder stat is happy. The rads and UFH are then run straight through the ASHP and plumbed in parallel, with the 3 channel programmer controlling the motorised valves. Manifold controller is a Heatmiser so does have a 'heat enable' that is closed when a stat asks for heat. Attached is pretty much how mine is wired except there is no 'room stat' for the UFH circuit. I am proposing adding the heat enable from the manifold in here. grant-aerona-r32-installer-uk-doc-0136-rev-2-0-september-2020.pdf
  8. Hi guys, I finally got my ASHP. fired up after a few issues. The heat pump is a Grant UK 10kw. My system has a 300 litre for DHW and then a motorised valve for a radiator circuit and one for UFH )with DHW having priority via a relay). These 3 'circuits' are run off a 3 channel timer. I was told to leave the DHW running all the time and to leave the UFH running all the time, then allow the UFH manifold and stats to control everything. Now to my issue - since turning on it has consumed between 30 and 50kw of electricity a day. This is with no DHW on and no radiators yet fitted, so purely UFH and all stats set to around 16 degrees. Most of the time no stats are calling for heat so the UFH pump shuts down however the ASHP still runs to keep the supply at UFH manifold at temp. Should I use the 'Heat Enable' contact on the UFH manifold, so that when no heat is called for the ASHP shuts down completely? The loft isnt fully insulated and there are no doors internally yet but this is still higher than I was expecting to keep the chill off the house.
  9. You have a 70mm service void but it's filled with celotex - where are you putting the service in? Are you cutting grooves in the celotex? Same goes for the electrical boxes.
  10. Where achitect specified. Normally it would be before service void but since your service void is filled with insulation it should go on the warm side of this. Is the insulation to be checked out for services to run in?
  11. As shown here, the ASHP isnt connected to immersion and is using the cylinder stat. So keep this way and let the iBoost do both immersions? (and a timed boost for bug killing duties).
  12. I did read that in the manual, use the upper as HRT1 and lower as HRT2 and yes I think it was 15min. The manual does show the ASHP going through the separate stat, I have attached the wiring config I am going for (not including the iBoost). The supplied stat looks pretty generic like this. So you would have the ASHP to upper, setting the limit on the immersion itself (around 50 degrees?). iBoost to the lower stat, setting the limit on the immersion (but to say 70degrees?). Then have the stat wired as separate safety device to stop all DHW heating?
  13. Just started wiring in my ASHP and cylinder. The ASHP came with a boost kit for the immersion but I would like to do away with that and use my iBoost. Now the tank has a middle and a lower immersion and has a stat placed in the middle of these. The stat has a control and a limit set of contacts. My question is what is the best way to wire this? Obviously the ASHP uses the two stat settings in series. My thinking was to use the upper limit through a relay for the iboost on the lower immersion? Any clarification would be good. Thanks
  14. What did you use instead? These are what BPC supplies witg my MVHR and I'm in the process of installing.
  15. Thanks, did you go for the cut an X out of opening and patch in corners or did you cut a section approx the size of the reveal?