SteamyTea

@Ed Daviesand @TerryE Do a statistical model, some things just cannot be sorted out with a relatively simple equation.

I got a letter today from EDF about a price rice, the second in a few weeks. Generally they were good on price, but not now (though still in business). Hard knowing what to do as I agree with @Triassic, many of these smaller 'piggybacking' companies are going to go to the wall.

Or webbed toes and fingers, like the inbreds from Helston

Just avoid Nalders as a solicitors, they are the most ineffective and useless ones I have ever had to deal with. They added an extra 3 months to my house purchase. Just dreadful.

Wish my girlfriend was an ankle biting mite

I use a Raspberry Pi Zero W with some DS18B20 1-wire sensors and some DHT22 sensors. Also stuck on a real time clock. Very cheap kit, around 20 quid. The chart is just knocked up in Excel, though there is software for the RPi that can do charts on the fly and publish them. The advantage of the 1-Wire stuff is that you can daisy chain many sensors to 1 input pin on the RPI. The DHT22 needs 1 pin per sensors, but there are about 20 spare pins, so that is not really a problem. The software is easy to write, or copy, just depends how sophisticated you want it really. Also pretty easy to get it to turn things on and off i.e. a fan, airco unit, heater.

My house was shut up most of the day, but you can see when the wind picked up in the afternoon and when I got home.

If I had read this earlier, I would have said join me for a coffee down Tehidy.

I think you don't get it. You can dress methods up with meaningless words and acronyms, but, as usual, it comes down to communication between the person who wants the work done and the person doing it.

Seems to me, and taking @Ferdinand's approach to it, that all it is really doing is getting rid of unnecessary layers of management. This allows mistakes to be made, and quickly rectified, without reprimand. Suits some people, not others. As for IT people and self build correlation, there is also a high number of engineers that are terrorists/suicide bombers. I try and keep well clear of software engineers because of that, and the flying spittal when they get excited over finding they have a semi colon rather than a colon, which, mathematically cancels out to leave them with a semi. Which is very worrying.

Quia illa schola cotidie

Oh, good spot, never checked the date. There was an announcement on the news this morning about it. Maybe there is a newer one. This is the new National Planning Policy Framework, maybe it was that the were on about. https://assets.publishing.service.gov.uk/government/uploads/system/uploads/attachment_data/file/728643/Revised_NPPF_2018.pdf

It is a White Paper, so has nothing to do with reality. Saw my old Mathematics lecturer last night, think I got his change right.

Isn't that dependant on property size. Have a hunt around on https://www.engineeringtoolbox.com/ as they have all the details.

Or how they are going to make it harder to build house, probably. https://www.gov.uk/government/uploads/system/uploads/attachment_data/file/590463/Fixing_our_broken_housing_market_-_accessible_version.pdf Only 109 pages long

Yes, basically true that a heat pump just cools one side and heats another. If the temperature differences, within the working range of the refrigerant gas, is equal, then there should be no difference. In practice there may well be a difference, but that could be caused by the plumbing side i.e. not capable of pumping enough because of UFH pipe restrictions, surface areas not large enough for the temperature differences, the fact that cool air falls to the floor, warm air rises which will effect efficiency. That sort of thing.

So do I, there is something just wrong about not going upstairs to bed.

Te reason that there is a difference in name place capacity is because of the relative differences in temperatures and entropy. Probably find that if you plot on the Kelvin scale those difference diminish and the only thing affecting it is the entropy caused by humidity.

PV/T = C Where: P = Pressure V = Volume T = Temperature C = Constant (this is for an 'ideal gas', but good enough for this) So separate the the working of the Heat Pump (Carnot Cycle, you can't get better) and the Plumbing, which is just where you want the energy delivered to.

Ideally, in my mind, what is needed is something that charges up on the lowest CO2e emitting power source and only discharges to offset the highest CO2e emitting times. This would require some central control and demand modulation, but should not be that hard to do.

Basically sums it up. And you end up with flat batteries. I know that with some sophisticated control and wiring that a system can cope with sudden grid disconnect. I designed such a system 15 years ago, but realistically it is not viable. What is viable for unexpected, but frequent power loss is a cheap generator and an extension lead or two. If your gas central heating needs power to work, put a plug on the end of the lead and plug it into the generator.

Quality https://www.bbc.co.uk/news/uk-england-cornwall-44879858 https://www.birminghammail.co.uk/news/midlands-news/range-rover-tyburn-road-erdington-14929044

I am seeing that dodgy investment arithmetic again. If you went out on Monday and invested £4000 in United Bank's fixed rate NISA/ISA, after 5 years you would have £4350 tax free. If you went out and bought a battery storage system, after 5 years you would have £0 plus any savings. Worth bearing in mind that the last 3 weeks I have used less than 100 kWh. As most of that is during the night, so the cost is about a 3 quid a week.

Never heard of that problem, it has never happened on an PU moulding machines I have ever used. If only the industry knew of a cheap, non flammable, low environmental damaging liquid that could sort it our if it ever happened.

There are other schemes for second hand houses I think. Really odd the way people see house prices. They often see it as defered income, like a pension, except it is no direct cost. Keep someones mortgage repayments the same, but tell them their house has dropped in value, and the feel cheated. Up the mortgage repayments but keep the house prices rising and they feel winners. Tossers.