SteamyTea

@Pete lea Have a go at calculating your existing pipe flow rates. https://sciencing.com/flow-rate-vs-pipe-size-7270380.html Then see if an ASHP is viable.

Not to the atmosphere. But we have been conditioned to, as they say now, monetise everything.

That is the problem. I had to explain to a customer (when I was involved in domestic PV), in January, that the reason his system was not very good was because he insisted that it must be installed on the NE facing roof. Was an IT professional, and a complete twat.

I just write code to save data as a *.csv file, then look/analysis it in a spreadsheet. Usually access the RPi with Win SCP.

A quick look at the Thermino data shows it can take a maximum input temperature of 80°C and has the equivalent of a 284 litre water cylinder. So if one assumes an incoming water temperature of 8°C in the winter, then: 4.2 [kJ.kg-1.K-1] x 284 [kg] x 72 [K] = 85,881.6 kJ Convert to kWh 85,881.6 [kJ] x 0.00027778 = 23.86 kWh Now if you are burning though 70 kWh.day-1 of gas, you would need 3 of the TRP-FGW-AVZ-1 To electrically charge them in 4 hours, you need a 17.5 kW supply. Even at 7.5p.kWh-1, I don't think it would make much sense financially, let alone at 20p.kWh-1, which is the more realistic current E7 rate. I think you would be better off with a large, traditional, thermal store of some sort, if you have room for it. There are also thermal and electrical loses to consider, so it may well be easier to up the size of the electric boiler and run that to the batteries are depleted (or close to it). The loses on an empty (cold) battery are lower than a full one. Just seems a very expensive way to coble together a heating system. As @Ferdinand says, find out your heat loses and work on getting them down, and remember that power [kW], energy [kWh] and temperature [K] are not the same thing.

Is there a risk that pollutants can leach out of the coatings? I thought part of the advantage of cast iron is that the surface rust protects the underlying material.

Bits from the radio about seaweed https://www.bbc.co.uk/programmes/b066th2r https://www.bbc.co.uk/programmes/b01h2kvg https://www.bbc.co.uk/programmes/b0bf7n5y https://www.bbc.co.uk/programmes/m0017k3l https://www.bbc.co.uk/programmes/m000v7px

Welcome This is a tricky one. Not much use if you are building a timber frame place, clad in timber. What you really need to do is find the area that would give you the best cost benefit. I doubt it is laying bricks and blocks. One thing that often gets mentioned in here is coordinating the trades. So maybe a plumbing course is better to give you more flexibility. And you can shop around for good prices on kit. A few have done their own roofs, seems that is not so hard. Carpentry is a huge part of the build, so look at that. I have tried plastering 3 times, I am totally useless at it. But others may be alright. All wet processes are a pain, design them out. Probably save more money not using an architect, they will spend all you have, and then some.

I did onto Dulux Bathroom paint, just scored it up with a blunt Stanley knife. Can't remember what tile adhesive I used, probably something cheap from Tops Tiles, where I got the tiles from. Been on the wall for 14 years now.

Not if all the kinetic energy had been taken out because it was 0 K inside. (Quantum effects will still be there)

Quentin Crisp.

Falmouth https://www.cornwalllive.com/news/cornwall-news/falmouth-beaches-criticised-having-too-7290477

Make some solar thermal panels from it. Has everything you need.

Think it really comes down to volumetric capacity. Smaller volume and you can add more insulation.

I am paying for your energy. You want civil unrest, rubbing our noses in it ain't going to help. When Lizzy becomes PM, she will force all fixed term contracts to be abolished, and then make up the shortfall with your money. The originator of this thread has gone. That is good news. Is the above good enough for you. I would have hated to have bought an EV knowing it will cost 25p to travel a mile. Only costing me 15p.

They will be ok then. Will still have heating, and they can probably easily save 8 MWh. Just turn off the XBox. Where they charging EVs? I just put 50 quid in my car (doubled its value), that is 270 kWh. As I have done 50k miles since October I am too scared to work out the price.

Rather a misleading term. I prefer a binary view in heating. It is either warm enough, or not. It is the 'not' that costs the money. Probably the cheapest method is to directly wire in a kWp of PV and have no control, except an isolator. Then just use the built in flap control to limit the output. When it is not warm enough, accept that external input is needed, or a jacket.

A few years back I did a small experiment with my storage heaters. Rather than limit the temperature, I limited the power they could draw, by removing one, and then two, elements (4 in total). I then compared the house temperatures to letting it run unhindered. Cost less, but house was cooler. Then I put on extra timers to limit the E7 charging window to just 4 hours, and the last 4 hours of the E7 period. That was cheaper and hit my target temperature better. Have now limited it to 3 hours, so around 9 kWh a day maximum storage, rather than 21 kWh. Temperature variation is a bit greater, but I can live with that. If I had 'excess' power, I would definitely look at topping up the night stores more, and enjoy the extra warmth. I grew up in the tropics and don't take my jumper off till it is over 80°F. I am still wondering about the best way to control output from old storage heaters, box them in and control airflow from the base seems to be the obvious way to me. Keep us informed about how it goes, it is an interesting subject.

https://www.sciencedirect.com/science/article/abs/pii/S0378778818315986

I had a quick websearch and just hit the academic paywall, but there does seem to be a fair amount of longitudinal studies about it. Seems dirt and loss of refelectivity is the issue. You can use your university login to read that stuff, and anything interesting you can post up.

https://www.mathsisfun.com/geometry/ellipse-perimeter.html

Turn right for the gloryhole.

None at all, soap is the invention of the Catholic Church, best avoided.

Unknown long term performance.

Anywhere from between 6 and 25 quid a day. Wonder how much she spends on booze, TV subscriptions and telephones. I do wish the media would stop putting on these extreme case idiots.