SteamyTea

Not sure about this, but if the building is relatively new, building control may have some records in it.

I assume these are solar thermal, not photovoltaic. Can you send then back or resell them. Failing that, you could plumb them in to supply some energy to your domestic hot water. You will probably need a new hot water cylinder, an expansion tank, lots of compression fittings, some flexible stainless pipe, a controller, antifreeze, service schedule and other things I have forgotten about. But the efficiency is tip top while heating the water, assuming the water is only luke warm to start with. PV is so much better.

I think this may be more to do with the nature of phase change materials.

Are these people that have not read building regs.

Welcome. As much as I like the technology of the Sunamp, it seems that it is still, like Spain, unfinished. Why do you want to get rid of gas?

Yes please, I am struggling to envisage it.

@Onoff Did you ever get a temperature display working?

Have a look at vacuum panels.

May sound odd, but have you looked at the Scanwegian coutries, not that far from you, and they know a thing or two about wood in buildings.

According to this About the same. Yes there is, but you need a whole load of information. Do you now how much insulation there is under the UFH pipes, and the overall heat losses from the area you are heating. It is not that hard to work out, just a lot of repetition and very dull. It is the same formula that you use to work out heat loss though a wall, just have to jiggle things about i.e. treat the surface area of the pipe as the hot side, and the floor as the cold side.

I got two cherry trees from PoundStretchers. You are welcome to them, one has been overgrown by the Pampas Grass and the other is a dry twig.

Just have re-read the original question, how about putting in a Willis and seeing how it goes. It will not do the DHW, but you could do that with a simple immersion heater. It will give you a better idea of what is actually needed, then you can design a heat pump system better. May be worth calculating how much DHW you actually use, and at what temperature it is both stored at and used at.

Coal varies in energy density, so does depend on what you are burning. Anthracite is between 7.2 and 9.2 kWh/kg Bituminous is between 6.7 and 9.7 kWh/kg Lignite is between 2.7 and 5.6 Ranking them in order and taking the median value gives 7 kWh/kg. So a tonne gives 7 MWh. The hard part is the efficiency of the Rayburn. Rayburn claim that their ranges can give an efficiency of between 86% and 87% for the oil and gas versions, so safe to assume that the coal one is lower, let us say 75%. So that will be 5.25 MWh/tonne. A tonne of coal will produce, in ideal combustion conditions, 3.667 tonnes of CO2.

We live in a place of higher than average agriculture, but nationally, the employment is very low (like fishing, not many fishermen in Buckinghamshire). I am all for building more housing in the countryside, a lot more housing, and especially keen on converting old buildings.

Too true, any warrantee down here lasts until you walk out the door, not the sort of thing the national offer.

Got both of them near me, and a Domino, MacD, Subway, Tesco, Sainsbury, Morrison, Halfords, B&M, Poundland, any many more. And this view. And every summer, a few million new people to meet.

Not quite. https://youtu.be/nWoWHzq21tA

Farming has changed beyond recognition in the last 50 years. Less that 1% of the workforce is involved in it. Tends to being going towards automation and specialist contractors. I am wary of old farming practices, and old farmers.

And in the not too distance future, your home PV will charge your self driving EV. There are probably other, bigger, reasons it is deserted.

Can't noise be transmitted in a masonry house then? Probably why I never ever heard any noise in my last 5 house, and they never ever shook when a large vehicle went past.

https://youtu.be/HOaiFBuvUSg

Do you get this view thrown in?

How long do these machines last. I would hope to get 20 years use out of one. My cooker lasted 37 years.

Funny number that, what the price, in pence, got s coffee when out. But only 219p now.

Yes