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https://downsizegeek.com/elon-musks-6789-tiny-house-finally-hit-the-market/ Don't think it has made any difference.

The wood of the flooring is actually an insulator, just not a great one. I'd look at laying XPS boards under a glue jointed (but floating) floor. Typically you'd see a batten screwed down the the concrete, laid over a DPC strip, and then the oak flooring would be nailed down to the battens. You could add more insulation in between the battens, subject to you having that 25mm or so of head height to be able to sacrifice.

Agreed, the building of houses is in the dark ages, and, essentially hasnt really changed. Reasons could be discussed forever, but it is what it is. I agree, if someone invested serious cash into a properly big plant to make houses, they would clean up. But for some reason, the building game has completely avoided the normal competative behaviour that drives innovation in other industries. Like automotive, as you say. The doors in my house only become truly weathertight if i lock them. If i just close them, they dont cut out all draughts, like every UPVC door ive ever seen. Yet, on my car, when i close the door, its closed. No water, no drafts. Completely perfect. To use just one example. Id buy a factory built house over assembled on site any day. Though it sounds like current manufactured houses are a bit of a cottage industry if this thread is anything to go by.

I imagine we have less wild beasties here than in NE Scotland… a cat’s about as dangerous as it gets here. Or maybe a rabbit…

I assume you put battens inside the pir layer? 75*25? Did you have any issues with keeping them straight to hang the plasterboard?

Plus these individual hobs will modulate with thermostatic control, so will be all switching on / off sporadically and independently. 32a is a boatload of juice to use up in fairness; I say this whilst considering the amount of homes I've serviced over the last 30+ years that have only had a 60a fuse in the supply head, feeding the entire (sometimes sizeable) residence.

Maybe @Dillsue can shed some light on this, he is in the PV business.

Well worth a listen. https://www.bbc.co.uk/sounds/play/m002tf9x Britain is turning electric, but the shift to renewable energy will require a major rewire. Business and Economy editor Douglas Fraser follows the journey of power generated on the north coast of Scotland to the socket in your living room, to discover the scale and the challenges of re-hauling the near century-old national grid. From windfarms in Caithness, pylons in the Highlands and huge undersea cables transporting power from Aberdeenshire to North Yorkshire, Douglas looks at the environmental and financial impact of the planned changes to the country's energy infrastructure. He also asks if Britain can meet a future surge in demand for electricity to power electric cars, heat pumps and AI data centres, while achieving its ambitious net zero targets.

I'm more worried about more wild stuff coming in for the night.

Well, they certainly know how to charge! That much i do know. So, does this mean if you are in a different part of the country you dont pay? If so, thats bonkers. The cynic in me says this is to cash in on the forthcomin plug in solar. Maybe im just too cynical.

^yep doesn't look like it's UK- wide

Our current main bedroom is the same… bungalow, doors onto patio and no other windows. In the summer we often sleep with the doors open. No intruders yet, but the neighbour’s cat has joined us for the night a few times

You'd say an induction hob with multiple rings doesn't have multiple points of utilisation? It's a moot point really though. I have 25 years experience in this exact area, doing this sort of thing every day of the week. If someone wants to ignore my opinion, and that of the IET On Site Guide, then I don't think I'll even attempt to change their mind.

Yes on concrete / screed in an older house. SLC beforehand No it had a dpm, then an underlay and then the flooring. All the joints were glued so it just floats as one large floating floor.

Do you not have separate controls for each ring on a hob? If you only have a single point of utilisation, all the rings turn on when you turn one on? Modern induction hobs usually have ratings for the individual rings and even break out groups of rings to different wiring terminals (to allow you to split the load over multiple phases).

I think we're going to have to agree to disagree on this one @Mattg4321 - even the OSG states "The current demand of a final circuit is determined by adding the current demands of all points of utilisation and equipment in the circuit and, where appropriate, making an allowance for diversity." I'd argue that it isn't appropriate when you have a final circuit (radial) feeding a single appliance such as an induction hob or an oven as there aren't multiple points of utilisation. AFAIK, the Cooking Appliances calculation has been in the guides with the same information since at least 1966, so I'd argue it's long overdue for an update to take into account modern cooking appliances and installation approaches! 🙂

Was that on concrete? Glued to concrete and nailed to each other in the groove?

I would take a strong guess this is National Grid - DNO in the Midlands, South Wales and South West England. I can't see how anyone outside can apply it to the other DNO's, apart from the DNO's themselves. They all have slightly different rules/charges as far as I know. I've only ever really dealt with UK Power Networks as they are the DNO for anywhere within a couple of hours drive of my location.

Not true. See below in Table A2 of the On Site Guide. Yes, this is only a 'guide', but as above, I've been doing this for 25 years and have probably fitted thousands of cookers and following this formula has never yet caused me a problem and often saves my customers lots of unnecessary cost and disruption in an existing property. Correct Yes, which has a large influence on cable size. The others being installation methods, correction factors and volt drop usually. It's fairly unusual for 6mm2 not to be big enough in a domestic property. I am an electrician 😉 Diversity - On Site Guide - 18th Ed BS7671.pdf

Nearer a factor of 30 actually, so more like £55 per household, circa £1 per week, but I get where you're coming from 👍🏻

It has been happening for decades. I worked with steel buildings which were made to order and slotted together beautifully on site. They were not even modular, but to any dimensions but there were parameters. Most of it was automatic manufacture, with humans just doing the odd tack weld to get it started. It was also possible to make a frame on site and lift it into place By chance I have a photo in front of me from some box sorting. THe odd thing was that the steel erectors didn't want to know about this. partly habit, partly macho, but the time difference was very small. The big difference is that you then took this hitech kit to a muddy site and worked at 8m in the air in all weathers.

Yes, the Viessmann heat only boilers are a completely different beast compared to the system boilers - no opentherm/room compensation available. Even on the system versions of the 100-W return temperature is not available to Opentherm - or at least not some Opentherm controllers where you can interrogate what information is available for control. Whether it is available to Viessmann ones would be interesting to check.

But what does the fee contribute to? AFAIK, you apply, the system operator looks up what your connection can take and that's it. The form is electronic and has drop down menus for all the applicable fields. The whole thing could be almost automated - especially for the "default" 3.6kw connection. I can understand maybe some engineer time if you want to ask for more than 3.6kw as someone might need to dig into some records and do some calculations. If the system meeds upgrading to cope with the extra input that is the dno's responsibility anyway and £200 isn't going to go far when it comes to replacing cables or transformers. I can see it may be neccesary/prudent to just have 3.6kw (or maybe a lower figure) as the default that everyone can export and then charge for higher levels. The current "first come first serve" allocation is a little unfair as some early adopters have huge limits and then late comers get very little.

My apologies. factor of 10 out. PHEW we are only paying £160/ household as dividend. That does sound more like it, but it is still a lot. I shouldn't do mental arithmetic with big numbers while sitting in the car (I was not driving). I chose 1M for convenience btw. and of course there is commercial use too, but we are the populace, so that huge amount could perhaps be better controlled.