SteamyTea

Do most half decent controllers have the ability to gather data? Being on E7, I have not bothered to keep up with general heating system controls. If they are like ASHP ones, they all seem to have their own way of doing similar things.

Check against the HDD databases, the charts should be similar shape. https://www.degreedays.net/ Solar gain is quite tricky. When I plot my house data against weather data, there is not a very strong correlation. I think there is a better correlation to windspeed, but when the wind is strongest, the temperatures are highest. Not as if I get many clear skies caused by NE winds, in the summer. Not as if I get many clear skies and warm SW winds in the summer either. It rains most days here, and when it is not, it is dark.

The base (x-ais) is going to be gas usage. Then I would plot (separate plots), in no particular order. Room Temperature Eternal Temp Room - External Temp UFH Flow Temp UFH Flow - Return Temp Buffer Temp Buffer - UFH Flow Temp Boiler Flow Temp Boiler Return Temp Boiler Flow - Boiler Return Temp (probably the most important) Boiler Flow - UFH Flow temp I would also categorise them into a frequency distribution where the x-axis is the delta Temp between the Room Temp and the External Temp (this is your comfort control. Then to make sure it is making sense, find the times (hourly) between Maximum Temps and Minimum Temp (the Temp Ranges) Those last two will not always have a very good correlation, but are quite useful visually because you can probably disregard the tails.

And you are still not getting it Now you are just trolling.

FFS. You seemed, a few replies back, that you knew what was going on because you had access to Gridwatch. Now you say that information is irrelevant.

I am starting to think this topic is being trolled.

Yes, we have the highest prided water and sewage, Indian and Chinese food, electricity.....

The stress in a bending beam can be expressed as σ = y M / I (1) where σ = stress (Pa (N/m2), N/mm2, psi) y = distance to point from neutral axis (m, mm, in) M = bending moment (Nm, lb in) I = moment of Inertia (m4, mm4, in4) https://www.engineeringtoolbox.com/beam-stress-deflection-d_1312.html

People shout here, all deaf.

Welcome. Move to Cornwall. Moving to Devon from the SE is like being a little bit pregnant.

Plot some correlations they usually show what is happening. One problem with modelling a buffer system is that there is a time shift between energy input and a rise in room temperature, this can give odd looking results as yesterday's inputs, yesterday's temperature differences may not correlate to what you see today. Starts to become messy modeling.

Always been trendsetters down here. Shop in Padstow was the first place to sell Crocs.

Generally used as a greeting or farewell for someone that you know. Girls often call their male friends Bird, but boys use it for both male and female.

I really don't know if it is true or not. Just said that the IMF has something to say on it. The thing is, who will you believe, not anyone that disagrees with your uneducated opinion that is for sure.

That is why they are offering cheap power I suspect. A lot of the people that take it up will already have PV.

Half the ratio and the torque doubles for the same power.

The IMF has something to say about fossil fuel subsidies. https://www.imf.org/en/Topics/climate-change/energy-subsidies "$5.9 trillion or 6.8 percent of GDP in 2020" Think that is about $740 for each person on the planet.

My daily mean, so far this year, is 7.9 kWh/day, 2781 kWh for the year to date. I use around 3 kWh/day for DHW and about 1 kWh a day for the rest. So 4 kWh/day for space heating. House is 50 m2. So total energy works out at 55.6 kWh/m2.Year. Heating is 28.2 kWh/m2.Year. Those number will go up a little for the last few days of the year, but not much. Yesterday I used half the amount I did the same day last week. I have just got in from the Montol and it is 10°C in town. Ansom my bird.

Makes my EDF E7 rate look very attractive, and I don't have to buy anything new.

Better than Nine Inch Nails?

As Gus is in Scotland, a haggis. We have Rowe's pasties in ours. Welsh plumbers probably keep a sheep's fleece, and the NE a memory of ship building. Midlanders, just a lot of gob.

Think I am going there for my holiday. Told it is livelier than Kiev this time if year.

As this is an engineering problem, do you have a WVTR for all the materials you are considering? Good luck getting it from the lime plaster people. They seem very coy about the numbers.

I get @Onoff to sort it, he has everything I don't keep, and a 3D printer.

I have 5 doors and 5 seats in my car. While I have used them all over the years, I have never used them all at the same time, and probably never will. But if I take the rear seats out, I can carry a lot of stuff. Now I pay more than I need to most of the time, but it is cheaper, overall than riding around in a motorbike and hiring a car, or van, when I need one. It is all to do with marginal cost differences. Through in division of labour, and market failures, and we end up with the cheapest option for the services we require. What amazes me, especially about the RE doom mongers, is they, like conspiracy theorists, seem to think they have discovered something special, a problem the generation industry does not know about, or are hiding it from us sheeple. You can go to university to study renewable energy systems, can't get more mainstream than an engineering course. I don't here conspiracies about engineering and how non of it really works. Probably because we are used to it, it surrounds us every day, has small, incremental changes that don't worry people unduly, is at a price that most, in the developed world, can afford. Most people will not care how electricity is generated, just as long as it works when they flip a switch. That is probably the best thing, we don't want people, who don't know much, thinking they can game the system with ridiculous ideas. Why I don't suggest suicide showers. They work, are cheap to buy, eady to fit, and (expletive deleted)ing lethal.