Nickfromwales

The competent person has the final say, so +1 to this. Who's the installer? Ask them, as anything else is conjecture or opinion, even regs are bendable or get garnished with a bit more belt & braces. You must live in a rough area if the 5 year olds are running around with TCT tipped Crayola's lol. He doesn't mean it, he prob got beaten up by the kids and his crayons nicked

Clients already bought the putty pads. 👍

Yes, saw those too. Some walls are 11mm OSB plus 12.5mm board, others just board, and some double DB board over Reducto framework. I’ll do a proper shopping list when 2nd fix comes about.

The regs have changed a fair bit here for DC runs in domestic dwellings, so on the last one (summer '24) I ran galv conduit internally to convey the 2x red and 2x black 4mm DC feeds from the roof to the rotary isolators in the GF plant space. Best to double-check with an up-to-date installer. If you need one let me know as I have a very good solar chap who works nationwide.

Long beam needs to go in first, as the two others appear to then hang off it. You wouldn't want to be hindered by the other smaller beams when getting the big ones in position, so that's what I'd do.

What does the manufacturers installation guide say about the heat pump firing into a wall only 600mm away? Usually they want much more distance there; Stiebel Eltron want 2000mm for eg.

Wanted to do this for current clients job, but acoustics were very important to him so 2nd fix will be a PITA. Tight cuts and all foamed out etc. Will get those Appleby boxes, the wings look much better on those than the ones I used last.

Use green moisture boards (unless you need to use pink fire rated?) and only skim it a few days before the door is due?

All the colours of the 🌈 basically @Russell griffiths has a little black dress.

Must be a slow one then, as my beans are over 6 months late!

You’ll have to eat those words when my £10k bag of magic beans finally arrive.

These are noisy when sun hits them and they heat & expand, and vice versa, would defo not be on any list of mine as the final connected finish to the interior of a residential dwelling I’m afraid. You can achieve any look / finish, with cosmetic layers applied after the roof structure, so I’d reconsider your chosen make up here. Almost all mention of these things is either commercial / industrial, or as the absolute rain screen in a domestic setting where the look needs to be replicated.

£6 / day, all in? ”Fortune”? Ermmmmm…… Try a week in my house and you’ll sleep well. 🤔😉

Like any snake oil salespeople, they’re both.

The parapet is easy to (re)detail, just from previous experience I noted that MBC give a rudimentary timber detail which imo could be better if it was insulated more robustly in the early design phase. I’m doing revisits of these kinds of things for a sizeable MBC client atm, and it’s surprising how the basics are great but there are still quite a few gaps to fill / simple improvements we’ve made for finite detailing. I guess some are more based on personal preference too, to be fair, but some are more architectural faux-pas which until I (and the newly appointed AT) highlighted them the client was oblivious to them. Recesses in the slab etc are easy once you have a detailed drawing from the window supplier, but even Norrsken got their structural openings wrong (typos); which I had to highlight after measuring up and spotting the error. The gotcha is not conveying this info early on to your BCO eg if you want raised external floor levels to keep the floors flush (or near as damnit) outside > in, as you need to ask for a deviation from keeping the knee jerk 150mm splash below the external rain screen to losing it to raise the grade to suit level threshold / floors. I’ve had MBC move a steel, to sympathise with M&E pathways, plus to make the corridor into the kids rooms wider, which MBC did without hesitation. Great company to work with so yes, you’ve landed on your feet there afaic. Potton are more ‘rubber stamp’ imho, and do little for a good foundation / high-performance house marriage….may be better these days but I wasn’t impressed when one of their previous clients approached me and the list of issues began to grow. Was difficult to stick my nose in and make fundamental changes and speak to particular people who would / could make this happen. Way more fluid with MBC, and so far nothing has been refused or pushed back.

Is it RGBW / RGB / CCT?

Are you using the heat pump to do hot water in this bitter cold snap? If so, your unit will hate you for it as it’ll be frosting and defrosting a bunch on low grade heat but will be much more of an efficiency killer when heating hot water. Try 48 hrs topping up with the immersion ( in off peak windows ) and see if that improves things. Also how long is the heat pump taking to recharge hot water? If it’s a long period then the house will start to cool down making the job of maintaining comfort temps even harder.

Time to bloody move then! 🙄

They may say it’s fine to have them both at full capacity, it’s down to the DNO, so best to simply ask first, panic afterwards.

If you use it that infrequently then I’d just do a chemical flush and call it a day? Time to downsize and start looking for a nice bungalow!!

It’s still classed as AC coupled micro-generation, so is notifiable afaik.

Maybe best to fill up and run a sludge remover chemical and leave to run for the recommended period of running time, then drain down and refill a couple of times, then treat with inhibitor? You’ll be running the heating for winter? What cost are you referring to? If you don’t run it then you can’t chemically treat it (DIY flush), and you will then have to pay up to 4 figures for an invasive power flush by a couple of plumbers.

Norrsken just installed on my current clients project (via Elite). Excellent team of fitters, great work ethic, everything foamed and sealed meticulously. The masonry was difficult to read and that resulted in the sliders needing pushing out one side by <10mm to square them up (you’d have seen it with the EWI so I pushed for them to return to make the adjustment). A bit of push / pull at the outset of the request, where they escalated it back to Norrsken. A nice lady called up to get the issue understood from their point of view, and then Norrsken paid Elite to return to sort the issue out. All dealt with very quickly, efficiently, and effectively, with the minimum of fuss. You have nothing to worry about here afaic. This client made the final payment a couple / few days before the delivery was due. Delivery was smooth and went well, with Elite supervising and taking full ownership of the delivery / logistics / manual handing etc. 10/10 from me.

Nothing is done on here for reward. Donations are made without provocation unless the BH coffers get super-low; at that point we put up a banner to request some funds incoming.

Then on your own head be it. Cant have your cake and eat it, in a nutshell. If they’re £10k over the uk national average then its £10k / 180 days of delay. I think you’re spilling hairs personally, after the horse has bolted, after accepting costs incoming; those which you took as acceptable as being based on trust and convenience.