Jump to content

SteamyTea

Members
 View Profile  See their activity

  • Posts

    23567

  • Joined

  • Days Won

    195

 Content Type 

Everything posted by SteamyTea

  1. SteamyTea
    What sort of floor do you have, and how are they going to insulate it to stop energy leaking though the ground/outside air. Have you considered Air to Air heat pumps. And do you know how much you use with your current heating system.
  2. SteamyTea
    Ask for a smart meter to be fitted, then the shit will hit the fan.
  3. SteamyTea
    If I had a couple of kWh of storage, and a 6 kW inverter, I could probably get to 98 or 99% night usage, but with usage at under 5 MWh/year, it does not seem worth it to me. All I would be doing is swapping my horrendous EDF day rate of 22p/kWh, or on average, 33p/day, to my not so good anymore EDF night rate of 9p/kWh, so a saving of 18p/day. To get back £1000 would take 15 years. And I doubt that I could get the kit for £1000, more like £3000.
  4. SteamyTea
    Load shifting is easy if your loads are higher, at the moment, because I have the heating on, I am using 90% during the E7 window. Not so great in the summer. But I still manage, on average, to use 83% at night.
  5. SteamyTea
    Probably. Silver is a common antibacterial coating. It has a lot of electrons, but the outermost shell only has one. This is why it reacts with other atoms so well.
  6. SteamyTea
    Probably nothing you are doing wrong. Try pressing F9, that recalculates a spreadsheet if it does not do it automatically as you enter data. You may find that some cells need data, so which ones where you unable to fill in?
  7. SteamyTea
    It is to do with the outermost shell of electrons on the polymer molecule. (I really have no idea what I just said there)
  8. SteamyTea
    That would have been because they were too small for the property. I limit the charge period of mine to 4 hours. Works well. But that is because they are sized correctly for the house and climate.
  9. SteamyTea
    When I am at work. I am still worried about these 'challenger' companies. How can they do it so cheap compared to the big boys.
  10. SteamyTea
    Shows how useful network cable is. One can be used as a washing line. Probably the biggest energy saving device available.
  11. SteamyTea
    Not bothered to look at the Notts site for years, but does the 20p/kWh include meter rental and taxes? Or a blend of day and night rate (which is tricky as you need a split). It may also reflect standard rates, rather than one off introductory offers. It is really quite easy to go to Google and find out what prices are being charged by the big 5.
  12. SteamyTea
    Can you get hold of decent weather data in Slovenia? Our Met Office is pretty good, but there is a large amateur network, WeatherUnderground, that has thousands of weather stations in most countries. Always worth a look to see what is near to you. The calculations of heat loss are fairly basic. This site is a mine of knowledge: https://www.engineeringtoolbox.com/heat-loss-buildings-d_113.html
  13. SteamyTea
    See if you can read the other meter. If the numbers are similar, then get it sorted. If the numbers are in your favour, get it sorted. Think you know what is coming next, if they are not in your favour, keep quiet.
  14. SteamyTea
    Do you know the thermal properties for each component that is exposed to the outside? Then it is a case of hunting around on here to find @Jeremy Harris's heat loss spreadsheet, punting in the numbers and seeing what comes out.
  15. SteamyTea
    Yes, why I was wondering what the max is they deliver.
  16. SteamyTea
    Ah, I thought it was the maximum from a wall socket. So what is the maximum it can deliver, 10A?
  17. SteamyTea
    Is that for any EV, or just yours? I can understand limiting the load when charging from a regular socket, but 6A is a bit low.
  18. SteamyTea
    There was a bit on Radio 4's You and Yours about someone paying £400 a month to run a couple of 'electric heaters'. That is around 2 MWh. Or around 2.8 kW. No idea how large the place was, or how much she is actually paying for electricity, just that it had leaky windows. Was about the new fines coming in for landlords who rent out G and F places.
  19. SteamyTea
    I suspect that Yorkshires moved here as economic migrants in the 18th and 19th century, then took what they learned back, including Trevithick's boiler designs.
  20. SteamyTea
    And a Cornishman is a Yorkshireman with the last drop sucked out. I got my car MOTed and a mate, instead of asking if it passed, said 'how much did that cost?' Now I just put silly numbers on things to upset him.
  21. SteamyTea
    Are you using MicroPython on them. @TerryE knows a lot about them but he uses a different language, and I don't really want to learn too much as I struggle with programming. As soon as I see a {} I get nervous.
  22. SteamyTea
    Buildhub should set up a calibration service. I always wanted to work in the calibration office where I did my apprenticeship. It was cleaner and quieter than the toolroom, and women worked in it (I worked for an American company and there was not one female engineer in the whole place, seems odd looking back at it now).
  23. SteamyTea
    Buy one, then I can calibrate the cheap ones I have bought. You know you want to.
  24. SteamyTea
    Just bought a couple of those cheap MH-Z19. Once the Chinese get back from holiday, get over the flu, and trade is back to normal, I may get them in the post.
  25. SteamyTea
    Is it possible to suck the CO2 out of the air for calibration purposes by adding something like calcium carbonate (in a container), or maybe just reducing it to a known level by heating up some distilled water and letting that absorb some. Or maybe just 'burping' a jamjar with nitrogen. RH sensors can be calibrated in a similar way with a salt, or copper sulphate solution, just wondering if something similar is possible.
×
×
  • Create New...