SteamyTea

I have an energy monitor on @joe90's meter. Not sure where the data is as I have backed it all up, but did upload it once, so may check Drive/Onedrive and see if it is still there.

For a shower, a quarter of a tonne. You are not in Cornwall, that would cost you £2.

Luxury When I was a lad, we had ice baths, with grit instead of soap.

There must be a Limerick there.

What I wanted to know, at the time, well, just before I looked at it, is why is the medical version so much thicker than the eBay version, sure the thinner it is, the easier to clean. And why do they need to bend it though 90° once it is inside, surely a mirror would be easier.

Still, could be worse, just imagine if a Physiatrist joined, there would be special pill deliverers to Wales. Like Screaming Lord Such said when they got more votes than the Liberals "We could do with a good Doctor". And I am sure we can get some high quality borescopes.

Oh good, Physics. https://www.independent.co.uk/news/science/stephen-hawking-black-hole-hairs-information-problem-a6819986.html

Right, I have spent 30 seconds doing what anyone can do. Got this: https://medium.com/@simon.aubury/home-power-monitoring-65d0fded7769 I am sure with a bit of extra coding, it can sense when the main meter LED is permanently on i.e. exporting. Then it can either start logging the generation meter pulses, or again, with some extra coding split the data up into times when it is purely imports, purely exports and a mixture of the two. All nicely timestamped and in an easy to read format. It would also be easy enough to put an indicator on it as well, or a switch or 10.

There are evaporation losses to consider, these can be quite substantial. https://dengarden.com/swimming-pools/Determine-Evaporation-Rate-for-Swimming-Pool

Shipping Forecast is on then, everyone should be up. https://www.metoffice.gov.uk/weather/specialist-forecasts/coast-and-sea/shipping-forecast None of us will be surprised with that, they may well know that you keep turning it off, some of these units have loggers in them and they will know what is going on.

You are not sleeping anyway, and I think, if you do get your house up to temperature, it may well not have to run during the night. There is no way you can not try this in reality. If I was the installer, I would just claim that you were turning it off all the time and making a fuss about nothing, then charge you £10k to remove it. It is a bit like trying to drive a car up a hill, a car where you refuse to use the brakes at all, but after you have moved 50 metres, you just let it roll back. Then claim it is the car/hill/life that is faulty.

I shall get back to this, got some sunshine so outside at the moment.

Yes do

I think a normal digital meter has the LED light up permanently if exporting. Link that in with the generation meter flashing, via a Raspberry Pi or two, job done.

I had a letter from EDF saying that the radio signal that controls my E7 is being switched off (2023 I think), so I will benefit from one come the day. Shall drag it out mind you. They were meant to swap it out with the radio switch glitched a few weeks back, they never did and the switch started to work correctly again.

Stop saying that, it is just wrong. Any power source that is specified wrongly will cause problems, ASHPs are no different. And power, energy and temperature are different things, the word 'heat' in thermodynamics means energy, not temperature.

You two are just m'bating me now.

That is all, I shall try and split it up later into DHW, space heating and 'the rest'.

This could quickly degenerate, and I am constantly having my posts edited. So I am going to learn some descriptive medical terms, see how long I can get away using them.

I have just updated my monstrous spreadsheet of my energy usage. My daily mean usage is, so far this year, 11.3 kWh, so that will be 4,125 kWh for the year. Floor area (total internal) is 48m2. So that will work out at. 4125 / 48 = 86 kWh.m-2.

Great. You can decorate my porch through the letter box.

Welcome Tree Surgeon?

More any imbalance between input and output. You can have an uninsulated room, but with huge radiators, running at a low temperature, and the air can still get up to the temperature you want. Conversely, you can have a well insulated room, very small, but very hot, radiators, and still not get up to the temperature you want. Or Two identically sized rooms, both with the same radiator size in them, but the water flow to one radiator is greater than the other, so one room will be hotter than the other (this is how a thermostat on the radiator works). Why I suggest that you turn the ASHP on, get the flow temperature up to 50°C, open all the user settable thermostats to Max °C, including any that physically on the radiators. Leave it running, so no night time setback, no switching it off, and just see what happens. You may have to leave it like this for a couple of days, no good after a few hours thinking it is doing nothing different, and abandoning it. AND KEEP IT RUNNING ALL NIGHT. I shall repeat that. AND KEEP IT RUNNING ALL NIGHT.

Is there anyway that this system can be set to one flow temperature, say 50⁰C and left on that permanently. So no mucking about with different temperatures, or times. Then see which rooms get warm, and which ones don't. Then, if necessary, balance the system, see what temperatures the rooms go to. If, the house gets warm enough, then set some on off times. So basically set it up like an old gas boiler.

Easy, log the data and divide by square meters. A number of things spring to mind, how have you calculated the area, what external temperatures are you working with, is the house permanently occupied, solar gain, detached, terraced, bungalow. A few years back, we did this over at the other place, go have a look, the data is still there, and it is quite detailed. Biggest problem I found was that people wanted to measure things differently, i.e PV contributions, not splitting up gas and electric, etc