SteamyTea

I take it the neighbours don't know you have installed it, in their bedrooms.

That is probably because not many are made, and none of them are for RWH as they are usually modified swimming pool filters.

Seems to me that it is the filtration/treatment of RWH that is the problem. It should be possible to design a self cleaning vortex filter for the input and then a regular water treatment filtration and sterilisation system for the output.

Nothing to stop you having 3 or 4 in series and running at the lowest fan speed, space and finances permitting.

They are a thermosetting polymer (polystyrene), but the E is for expanded, so the air will expand and contract after the polymer has fully cured. This is not normally a problem as the movement is quite small. If you look at a SIPs panel, you will often see that they are bowed, this is because some are basically two sheets of OSB, with a relatively lightweight pine frame, that is then injected with expanding polyurethane. Initially the resin is a mixture of two parts, that then react, expand rapidly, then off gas, then contract as they cool. Over the next few weeks, this contraction will continue. It is possible to buy aged PU foams that are machined to a fixed size, but they are more expensive. You can get SIPs panels that have expanded polystyrene in them that are more dimensionally stable, but they are usually more expensive and generally have a lower U-value.

Did DeepSeek actually say you need a wedge to lay paving?

Generally yes, for the exothermic chemistries, and shrink the most the newer they are.

Is it really poor quality, or just to a different, but adequate, specification. I seem to remember that we don't build cars like we used to. Thank goodness.

Not the same stuff. The antifreeze for HPs is more environmentally benign.

Is that another example of my theory that for every rule or law we have that says we must do something, we have another one that says we must not do it.

I had to clean up a dog's egg at work the other day.

I have just sold my 600bn in shares, going to give the lot to Deepseek to help speed up 'model collapse'.

What is the problem with long term energy contracts? We winge like hell about volatile prices, but are unwilling to enter into a long term deal, just incase prices come down. Interesting that the news is from Harrisburg, PA, the home of Three Mile Island. I used to live near it, no one mentioned it at all.

I doubt it. There are new chemistries coming on stream (Perovskite, Organic, Dye-Sensitive, Quantum Dot, CZTSSE) and new manufacturing processes (Printing, Vacuum Deposition) and design (Flexible, Irregular Shapes). Probably the safest way to design is to pick the largest panel that is available and will fit, and hope that size will stay available for longer. The problem with large panels on domestic properties is fitting, hoists and cranes may be needed because of HSE.

If the thought of a Cambridge University course does not horrify you, take a look at this. https://www.doitpoms.ac.uk/tlplib/wood/intro.php

Are the trees grown there a different cultiva (think that is the term for a small genetic differences). The reason that trees don't grow well on The Lizard Peninsula, is that it is too windy, so only short and twisted specimens down there (bit like the people).

Unless MI trumps it usually.

I did actually know about the Redwood Scale, was just waking up this morning.

There are different types of diesel, I seem to remember that some is 28 seconds and others are 35 seconds, no idea what it actually means. There was/is a trail going on down here with HVO. https://www.cornwalllive.com/special-features/how-small-cornish-village-leading-9652305

That may just be the economics of production and supply. If the main timber needed locally is C16 and ungraded, then it is better to concentrate on producing that, then let others produce the C24, which may be used more local to the production point. In economics, this is known as Division of Labour.

While this is true, palm oil production is better than say rape seed oil as it uses less land. PV is even better still from land usage. I have a problem in the way we 'measure' the environmental credentials of land usage, with the British public being on of the worse groups. In the UK we pretend that we want to preserve nature and the environment, but what we often talk about is preserving industrial farming. There is very little true, untouched land in the UK, and what there is, is untouched for a reason, generally it is useless.

I think the same, there is no shortage of resources or production, and we have not started recycling in earnest yet.

Are they talking about just off the natural gas grid?

DHW and space heating are different things, at different temperatures, and at different times. It is not normal to combine them. A thermal store is the exception, but even those are really just large, high temperature, water cylinders. The Tank in Tank idea is sold on two points, neither of which are very valid. The first point is that it reduces 'stratification' in a cylinder, the second is that there is a store of hotter water surrounded by cooler water. Stratification does not really happen in a cylinder, it is generally caused by different salinities, not temperatures. What you do get, in any cylinder is a temperature gradient with hot at the top cooler at the base. The second point, a cylinder, surrounded by another, lower temperature body of water, is just going to loose temper to the larger, lower temperature, surrounding water, rapidly. That is just thermodynamic.

Dyslexia Rules, KO I have to keep telling my friend's dyslexic son that his mother works in a warehouse.