SteamyTea

He asked me to do that.

They are probably so stupid that they would not understand what you were saying. If they cannot understand what 'park in your parking space' means, even when you point to the empty space closer to their door, they will not understand what you are offering.

Got new neighbours moving I today. Already had my first talk with them about parking. Can see this as an ongoing thing already the driver is a (expletive deleted).

@Chriswills So as you have had this ASHP 12 years, you had any other issues with it?

Generally, in physical systems, if you can transfer 50% of the energy you are at peak efficiency.

Would it have been better to you an exponential or log curve matching for the Demand as then extrapolation is more accurate.

You can use it to work out the DHW energy consumption as well. HDDs are not perfect as each house is a bit different, but they are useful as a sanity check.

Decide on the thermal losses and then work from that.

Shall see what my timers are when I get home. Not had any problems with them for over a decade.

Use the hotspot built into most phones. All by 'communications' come via my phone wifi.

Think they just learn to live with it. Never seemed to remember it was a problem when we lived in France, think we had a 10A supply, but cant really remember, it was 40 years ago and I was more interested in the neighbour.

Worth remembering that this are sometimes on timers. I would have to split my supply as I am on E7, not hard, but worth remembering. We were discussing the resent power cuts (BiL's parents had no power for 2 days). I said I use my camping stove, BiL said that was what his parents do. My Mother croaked up that there is a stove in the garage, there is, and a full gas bottle. The 1960s have a lot to answer for.

And you get an Atkinson cycle engine, which I think is the most efference gasoline ICE currently available. I like the idea of of just running an inverter off a car for emergencies. Maybe a leisure battery in parallel with the car one, but 'in the shed with the inverter'. Can be trickle charged as well. There is a 130 Ah on on ebay for 77 quid. Say you draw 50A for one hour, 600W, that would be the same as burning 1/4 of a litre of gasoline. Or about 35p worth. The equivalent grid electricity would be 15p. I would hope a leisure battery would do 2500 discharge/recharge at that level. The inverter is a bit more expensive. A pure sine wave one (which is what you need) will be about £160 for a 2.5 kW, 5 kW peak one So about £300 to sort something out that can be emergency charged from a car. Pretty good considering that you can easily add an extra battery.

Generally yes, if everything else is kept in proportion. The main thing with heat pumps, like cars, is to not use them at maximum capacity too often.

Can you copy and save all the material, then we can all have a go.

Eh ... 0.25! 0.288 kWh.day-1 But probably idling some of that.

1992 the format was released. Some of those old, grainy, artefact edged, colour corrupted images will be considered charming one day, just like sepia pictures are.

About time. If only people did not want to send multi meg pictures of their privates to each other, we could have a much faster internet. when I send a picture from my phone, by default, it send the full size image, that then gets viewed on a tiny screen. 30k would be ample, just like it was back in 1998.

They do not show the thermal conductivity, but it could be estimated from the data sheet. It has a density of 30-33 kg.m3 and is made from polyurethane. This one has a Tog rating of 0.3 A Tog (comes from the word for clothing, Toga)1 TOG = 0.1 m2.K.W-2. So at 0.0018m thick 0.0018 [m] / 0.9 [ W.m-1.K-1] = 0.002 [R = m2.K.W-1] 1 / 0.002 [R] = 500 [U = W.m-2.K-1] It should really be called a thermal conductor, not an insulator, but it is very thin.

I can see a misselling scandal coming.

Are these readily available, or a shield? Can't these also be just as effective, if made from to tin foil, and placed on head, like a hat. But this is the problem. PM 2.5s and 10s are smaller than a visible gap. Shall see if I can find the report about indoor air quality when I get home (and if I remember). Always struck me as odd, like getting a kettle, but no lid. But they are selling a feature, not a function in reality.

We can thank Isaac Newton for that.

Need to throw in system size as well. There is a big difference in suppling, say 55°C water, from a 5 kW unit and a 15 kW unit, regardless of weather.

Not any more. I miss it sometimes, but generally I grew to hate it. Was not the students, was the piss poor management.

Trouble is, unless you only need a handful of kWhs/day, you are into thermal store territory. Also, if you could rely on a 5p/kWh (equivalent) tariff long term, just fit a resistance heater/s into a large store.