Nickfromwales

Multi-finish every time afaic. I've only ever had one spread ask me to take the MF back and get BF, as he was older than Jesus, set in his ways, and refused to use MF on new PB's

The point is valid if that manufacturer is charging multiples of cells without proper (or any) means of balancing. I've happily moaned about Makita battery packs dying early from this exact same issue, even though I own probably over £3k worth of Makita cordless and mains power tools. I also get to talk with other solar installers, some who only install the "chinesium" stuff, and I get feedback from them behind the scenes too.

Yup. 👎

The batteries need to be purchased with the solar to be eligible for zero VAT iirc. I don't think you can claim that back if you purchased these in 2 separate transactions, but there may be a caveat if they came from 2 different suppliers and they're installed and commissioned together at the one address. I'd avoid the Pylontech batteries as I don't believe they are 'balanced charged'.

So what happens if someone registers a (say) 5kW hybrid inverter with 4kWp of solar, and then adds batteries on the DC side, and then force discharges into the grid? MCS etc doesn't require any information of what's on the DC side of a hybrid, so the system could be 'legally' garnished with 15-20kWh of batteries and then they could be discharged as the inverter won't show more then the 5kW of capacity but it will be exporting that value for a lot longer. How could they ever police / enforce this?

I have already made sufficient allowance, lol.

And there it was......gone

You just need to have the section of RB that will take the PB screw, offset from the edge of the joist. You absolutely must avoid screwing through the plasterboard, through the RB, and into the joist If you don't then you'll end up in a proper state. Set the RB so the 'tongue' is in each void.

We quote the exact same price, on roof or in-roof, the maths work out near identical whether it's brackets and rails or in-roof trays. I hear you loud and clear that you don't want a debate, but I'll not sit quiet whilst I hear something so odd being quoted, apologies in advance. Someone has been yanking your chain. FYI, I've been in an around the solar industry for a number of years, and we install solar via the same agent on every single property. You've already spent 'a fortune', so we're just advising on how to not do that again

And put a bit of thread-lock on the brass screw that holds the tap head on

It's the age old 'not enough PTFE so I'll turn it until it stops' posse. Put about 23 turns of PTFE on tightly and turn it until you see about 1 revolution of thread left, then just keep turning to the desired position AND STOP! Simples

Maybe a taper fitting?

Was this a second hand unit or new? Did you buy this off that eBay seller?

Sorry, only now seeing this. FWIW, I think it must be a duff thread. Try cutting it with the tap, but don’t do it in anger! Take your time, suck it up, and keep your chin up. 👍 Let us know how you get on.

Looks very nice 😊

I’m a bit lost as to how your internal block walls are on 100mm of insulation? That and busy as feck 😣

Are these kickers on a block and beam?

And then......... "Peckham Spring".

Yup. Defo only needs a single primary pump IMO, and defo better to keep 1x pump per manifold, when over 2 floors and with 2 different values (head and temp).

+1, and will soften the hammer off the WC's and any 1/4 turn taps which 'slam' shut. At 8bar, you defo need a PRedV on the main as that will be causing all kinds of havoc 'behind the scenes'!! Set it at 4bar and the flow will still be stonking. A 3bar PRedV actually strangles the flow quite a bit, so make sure you can define the set pressure. Remember that you need to have water flowing through the PRedV to set it accurately, so leave a tap on somewhere just running a couple of l/p/m whilst you set it.

£55? Cheaper than shoplifting 👍. Get it bought, get it fitted, winner winner chicken dinner 👌

Check with the supplier?

You can have a house acclimatise to the ambient, for a number of days, and the tiles will still feel cold(er) to human skin. The issue is different materials hold heat energy differently, which is why when you sit on a block of EPS during the tea break your arse warms up near instantly. Do the same on a stack of bricks and the heat from said arse will be absorbed and dissipated. No internal floor should need insulation as it's already within the heated envelope, ergo an ambient will be achieved over (x) time, but this is why folk say to install LVT vs tiles, as it's the laws of physics at play here and not how well you've built.

Unless you are going to study the building industry, learn how to make a dwelling airtight, and be on site every single day to manage the trades executing this work, you have NO CHANCE vs a TF build with a guaranteed AT score. Add all that grief (and still loads of) uncertainty, and then redefine "mega cost" please. Go find a general builder who; a) knows what airtight actually means, or b) one that will put your money where his mouth is and offer up a guaranteed AT result of even sub 1.0 ACH.... Let me know how that goes! The facts speak for themselves, and the TF suppliers I have conversation with have diaries which are jam-packed into next year. There are people who can't hang a shelf, and for them it's far less risk to appoint a TF supplier with guaranteed outcome than it is to get a general builder to knock up a masonry shell and hope it turns out OK. TF company will be contracted to produce an end result, builders will just typically 'put something up'. Good luck tying to define in court where they went wrong when your AT score comes back at 3.0 - 5.0ACH and you are stuck with what stands in front of you . I've turned up at many a job where the clients are all smiley faced and overjoyed with progress, only for me to say "WTF is all this mess?" I turned up at one job, the second lot of groundworkers (which replaced the first lot of assholes, all paid up and work was dire) were just starting to cover their work over with pea-gravel, and I said to the clients "none of that complies with B-Regs, tell them to stop now and do it all again". They had been paid £7k in advance and just buggered off when challenged. Current project, we're coming up to £40k worth of 'damages' done and hidden by the builder, he had most of his money up front, was challenged, then.......buggered off. Both clients to date have received £zilch back off either job. There's north of £61k there. See a pattern here? This is nothing to do with the build, or what they're building it with, it's 100% to do with the people you are dealing with. The people who own the company, and it is they who decide how the job goes and it is them you are investing in. Members on here have built with masonry and achieved super-good AT results, but that's the exception and not the rule, as not a lot of people who wish to self-build know anything whatsoever about the construction industry, worrying as that is.

If you ask for someone to make you something bespoke, then you don’t buy it, they’re Donald Ducked. C’mon, it’s been the norm for as long as commerce has been around. Tailored suit? Pay up front. Etc.