SteamyTea

I may go and get one then. Cheers.

@pocster How have you got on with your repair with that paint sprayer?

I agree. We already have a transfer of income from high earners to low earners though the income tax and benefits systems. What we need it a simpler system that is transparent, not another layer of complexity.

I wonder how many are converted houses? Not all flats are high rise. They are probably diminishing in number.

Don't forget to add in evaporation losses to your calculations. Re the flow rates for cooling, work on the ones you already have. Then see how much power is delivered. Corby Council used a large pond to collect and store energy for their community swimming pool. The system never worked right and they changed to gas heating and conventional airconditioning.

There is, surface area to floor area is one metric, terraced housing is another. Orientation and wind shielding are others. I think forum members are biased in what they build. Is anyone here building a semi?

Flats could have A2A heat pumps, or community heating. Terraced places may have enough room outside for a monoblock, but could have a split system. Both flats and terraced have relatively low energy usage by definition (less exterior wall area), so a smaller problem to solve.

The same argument that the automotive industry has been using for decades, but they seem to manage to produce cars to a higher standard for, in real terms, less money. The biggest problem the house construction industry has is the people they employ on site.

Probably all of the above. I made a cuppa in about 30 seconds with my kettle.

If you want to know how not to heat your swimming pool, come down here. https://jubileepool.co.uk/pool-info/geothermal/

Just tried it on mine, throws an error.

My kettle cost a tenner from Tesco. I am very dubious of any advantages.

Wasn't there, back in the 1970's, a joke about this. Punchline (said in Jamaican accent) was "(expletive deleted)ing dis custard"

Well filled the gaps, let's see what the morning brings.

Semi inside would be the best description. It leaks water to. Should be fine as soon as I foam it all up.

Door and frame is uPVC. I assume that the frame has a metal frame in it, but not 100% sure, the door does. It is the lack of any foaming between the walls and the frame that is the thermal problem.

You not got children then.

I hardly ever use my front door and porch. Partly because it is cold and miserable, even though it if SW facing. But now I have eventually got around to do a proper decorating job, I have found out why. Apparently the previous owner paid over £800 to have the door and frame fitted, and all that was keeping the weather out (remember it is SW facing in Cornwall, and I am at altitude) was some silcone on the internal plastic trim. Off to get some cans of foam now. Then I can try and work out why water gets into the actual door, and drains out when it is opened.

Good man.

Why https://en.wikipedia.org/wiki/Roundup_(herbicide)

Not at £8/m3 they can't. But look on the bright side, you paid for it via your taxes, it was installed because there was a disabled person there. £1k to just hang it on the wall and connect a few pipes. I would need to see some quotes about what is actually done for that. We have some plumbers on here, maybe they can say what they would do for a grand.

Not as if a traditional natural gas system is free. I also think there is needs to be a distinguishing between an easily fitted combi boiler and a complicated heat pump installation. If I was to fit either to my house, which I can now (as some poor sap paid to get gas fitted to the end of the road, was £20k when I looked into it), I doubt there would be a huge difference in price.

Why are you so against heat pumps. And if you don't, which is the case here, what do you suggest, a greasy oil tank, filled with a volatile (both financially and chemically) liquid. Or maybe a large rented cylinder, where the filling service may be withdrawn.

@BartW Have you thought of creating your own design, total from scratch, without using any pre-existing components. This may sound an odd thing to do, but sometimes it is the only way. Then get the components made. For a one off design, it is really down to folding sheet metal, or moulding GRP. Sheet metal folding does not require any tooling, just machinery, GRP does require tooling, though this may just be Contiboard and car filler. The biggest problem, which is true for all building, is the actual fitting. Let's face it, plumbers an electricians use bog standard parts, made to a high quality, and still make a pigs ear of it, constantly. This is part of the reason I think starting with no existing components may be a better idea. You are just solving two problems; the functionality and the fitting.

and the airlflow is very quickly disrupted. This is why they can be sited in a dark, sunless area. You feel hot in the sun, not because the local air temperature is much higher, more that you are absorbing an extra 800+ watts of power.