SteamyTea

It would work. A self-etching resin would make the bond just as strong. Most hand layup composites are done in multiple stages to get the desired thickness to avoiding temperature buildup, shrinkage and unevenness.

I did. But more thee material jamming between the disk and the guard. I have used angle grinders for decades and only twice 'sanded' the side of a finger. I am not sure what you are trying to cut. Are you cutting a screw/bolt from between two bit of wood i.e. stick the blade in the gap ad cut the bolt. Or are you trying to just knock the top off the screw and them pull the timber apart?

Under catalysing is a cardinal sin in the composite industry. You can get hardeners that have different 'speeds' so that you still get full polymer crosslinking. If you have not already fitted the roofing sheets, you could coat them in GRP before fitting. That way you can do it inside and only have a few joints to seal site. I have never understood why it is done totally onsite, that is just making an easy job difficult.

Which is odd as the world is awash with investment capital. ThisIsMoney had a bit about British Gypsum/BPB shortage. Never bothered to read it.

How airtight is your house to start with? If it is poor, then just ventilate/MVHR where you need to. If it is good, then maybe a combination of a central MVHR and some single rooms may do it.

Let the disk get too small and whatever is being cut can get jammed between the disk and the guard.

The seemed to be really selling fan coils as an extra.

Poofs https://en.wikipedia.org/wiki/Shin-kicking

Saw the architect this evening, shall PM you his number.

You could go for a cheap freestanding kitchen at first, then jiggle it about until you are happy. Then buy a 'proper' one. Ok you pay VAT on it, but that is relatively tiny in the scheme of things, and you never know, you may like the free standing one.

Thermal blind maybe.

Eewwwwwwww

I started off on a PET, then a Mac, now Windows and Linux.

Is the Chelsea Clinton?

Try Charles Green in Redruth http://www.charlesgreendesign.co.uk/ If I see the one architect I know, I shall have a word and see if he can recommend someone that is close to you.

That's interesting research. Back in the late 1950's and early 1960's, my Father was a project engineer for Shell. He was part of a team building a new refinery in Brunei (we were economic migrants before the term was unpopular). Part of the project was to lag all the high temperature pipes with asbestos. This was done my mixing it up with a binder and slapping it on by hand. Though my Father was not actually doing the work, out of the 4 British engineers on the project, 3 died of asbestosis. They all died before they were 65. My Father was the lucky one, cancer of the spine got him, but at a decent age. So probably genetics plays a small part, not the major influence. The risks of asbestos were well know even back then. I often wonder how many of the 100's of Indian workers died of it. Do the right things, get it removed properly.

750 W is quite a lot. Would heat all my DHW, 6 times over, every day.

The responsible thing to do is remove them properly. Saves anyone digging them up unwittingly in the future. The cost of doing it now is cheaper than later. Trouble is you have to bear that cost.

Jeremy, floor area is 140m2

So how much insulation are you fitting under the floor/pipes. This is important as otherwise heat will just conduct downwards.

And I have a feeling you are not allowed to install them up there anymore. I am sure a sparky will be along to say different.

Shame that the heatsink cannot be self cleaning, there are times when there is plenty of excess power to do this. I feel a case of the Heath Robinson coming on.

I have often wondered how well cold spoiled potatoes can be turned into ethanol. Not that I think biofuel is a good thing , but it may be a better use of spoiled crops if it can be processed near to the site.

Cold is the killer for potatoes, it quickly turns the starch to sugar once below about 5°C. So probably for heating. Lack of water is also bad for potatoes, so he could be fitting irrigation. I would have thought though, that large ASHPs would be easier, cheaper and just as effective to install. But maybe not such a large incentive to do so. Will be interesting to see how this project fairs.

Volume is 3 dimentional, area is 2. So we can discount thermal area as it has no volume, so no way to calculate mass. Though radiation is related to area, but that is even harder to truly calculate, though others disagree with me here.