SteamyTea

I have just remembered something from 40 years ago. I had a misted up DG unit that got cracked. The misting vanished. I wonder if a small drill hole in the edge (that pane separator bit) may cure the problem. May give it a go.

I think it is to allow a neutral at the switches when 2 or 3 way switching is wanted. Usually the neutral is up in the ceiling rose and only live and earth are at the switch. Sometimes not even an earth.

And some will be bolts.

Data is so useful, so much better than guesswork. I am quite impressed with the efficiencies, what are the two different methods you use?

When I changed my glazing units, the supplier offer a 1 year warrantee with timber frames (which I have) and 5 years with plastic frames, 7 years in they installed them. Most now need changing after 20 years, so may go and see if he is still in business.

Yes, was a while back, so they may have started to inject them. One can usually tell by the trimmed edges and any 'swirl' patterns on them. Would need a very large injection moulding machine. The formula is F = A x P x SF Where F is ton A is area P is injection Pressure SF is safety factor A flat sheet would need a huge machine compared to a similar amount of material injected into a a thicker, but smaller area area i.e. a plastic bin shape. There is also the speed that it can be injected, though multipoint injection alleviates this a bit, but these are niche mouldings, so would be hard to justify the costs of machinery and tooling for a few thousand parts per year, vacuum forming would be much cheaper. So they may well be injection moulded, but I would be surprised. I was only peripherally involved in the injection moulding side, but my Mathematics Lecturer in the early 1980s was John Dunhill, of the cigarette family, who worked on the Topper Dingy design back in the mid 1970s. The Topper was, at the time, the largest single moulding every made and was only possible because it was a development project, backed by industrial (ICI and Rolinex) and some government money, Ian Proctor could never have afforded to develop it and would have stuck to the cheaper GRP mouldings, which I seem to remember were lighter. Was a long time ago in my personal history, but interesting times.

Well what a surprise. Every time you double insulation thickness, you halve the power though it. So an inverse rule. But this is really looking at the problem from the wrong point. The overriding idea is to reduce total losses, and that depends on the relative ratios of surface areas. So a building with 50% glazing would benefit more than a building with 20% glazing by having lower overall U-Value windows. It will cost more to build (usually), but that is when you create a spreadsheet and work out the lifetime costs. The last 4 years should have shown that energy prices can be very volatile, even with government support (even though domestic spend is still around the long term average of 5% of household income).

The ones I saw were vac formed.

They are vacuum formed, so apart from the offcuts recycling value, there is extra pattern/tooling work and then extra trimming. It is a case of an extra quid to not have a hole, 2 quid to have one.

Interesting the in-roof panels and PV panel size mismatching. My roof is 4 meters wide, and it would be nice to fit 8 990mm by 1600mm panels in portrait. When I last looked, there was not an in-roof system that could do this. As the house is terraced, I could slip a bit of a tray under both neighbours tiles, which should give me enough width for bolts and panels. I do wonder how hard it would be to make my own from GRP, which I can do myself. When I look at the design of the GSE ones, I do wonder why the have a large hole, in the middle, moulded into them, is it just for roof ventilation and cable access?

Why surprised, it is the amount of trapped air that does most of the insulating.

but the sheep can escape the worrier.

They will float if mixed with a fluid that has a greater density. I have recently, out of curiosity, been reading up on foaming concrete. With suitable reinforcement and on site quality control, it seems to me that this could be a very useful product.

If you think I have been bullying you, you have never seen, or experience, genuine bullying. Having recently dealt with a case of it at work, I can tell you that nothing on here comes close. Stating facts is not bullying.

I had a really bad car crash back in '86, had terrible chest pains for months. I had also moved house a few weeks earlier. Now I live in a different area total, my aches and pains are still with me, but I have a better car, so must be because I speak English, and nothing to do with having flown in a helicopter, not once, but twice.

I have learnt more about humanity.

TL:DR Move the inverter, when working at capacity, they need cooling air.

This is the highest RH I could find in South Welshland. 89% @ 9.8°C. So 6.9g of water to every 1 kg of air. A large mug of tea holds 300g of water. That is 43 times more water.

53.6% Which will feel pretty dry to most people.

Everything we do affects everything, that is Physics. https://www.sciencefocus.com/news/human-structures-slowing-earths-spin

https://www.simplesurvey.co.uk/article/the-beginners-guide-to-section-6-party-wall-notices/ "Within 6 metres where your excavation will intersect a line drawn at 45° from the bottom of your neighbour’s foundations." How deep are the neighbours foundations?

I found Pocster's play list.

I warned you all back in August 2023 with the below statement.

It could be, maybe that is addressed in the source paper.