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SteamyTea

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Everything posted by SteamyTea

  1. This heat pump installation is going to cost a fortune to run. The CoP is going to be just a little over 1 I suspect. All quite unnecessary as it is down to how it is being operated (or inappropriately operated). Trouble is, all the things that Zoot is saying, is just a repeat conversation from 3 years ago. Repeating the same mistake while expecting different results is commonly known as the definition of insanity.
  2. I thought it worked by buoyancy, so hot are at the top, which will be lower density, will stay at the top. Probably find that any hot air that is drawn downwards is caused by a venturi effect caused by a through draft at low levels i.e. leaving windows and doors open. I think you are correct here, people get very hungry up on CO2 numbers but I think there are more problems, both physical and emotional, caused by high RH. There is a good correlation between RH and CO2 in occupied buildings anyway, unoccupied is a different story.
  3. Over 70 years. It still needs to be used correctly, I used so out of date powder and it failed to adhere, which was a bit of a surprise.
  4. Maybe @Gus Potter can answer this better, but I once saw a Youtube about the wire rope used in suspension bridges. By using multipole strands of relatively small wires a number of properties could be designed in, tensile strength, flexibility, safer failures, easier manufacture etc. I feel the same way about multiple smaller fixing. One may fail, but the others should still be able to cope (why a safety factor is used). They are also easier to fit correctly (I worry about people using adhesives without a proper understanding of the limitations).
  5. Must be those cloven hooves for fingers of yours. I have a very gentle touch.
  6. Is your finger sore from tracing the words and your lips still moving. Will this latest LLM make you a better girlfriend that will indulge all your pervy fantasies.
  7. Are you still running like a normal heating system i.e. turning it off at night and when you are out.
  8. Energy prices may vary, they have over the last 4 years, so you need to make some assumption there. Also, are you comparing the marginal price increase, per MWh saved. Then there is general inflation. When I bought my first place in 1981, I was told that it would bankrupt me and it was a silly amount of money (£17k), millstone around my neck. Not. As many have found out on here, it is possible to do a good job, for a similar price, just don't accept the contractor's initial price.
  9. I like to think of an inverter as a CVT gearbox. Most of the time you can drive a car in third gear, be a bit hard to get going, max speed will be limited, and fuel consumption will be dreadful. Generally electronics are reliable, the biggest problem is replacement parts are silly money, we had a board changed in the dish washer at work, the problem was a relay, 20 quid part. The repair was over £1200, for a secondhand board. They kept our broken one which I could have repaired.
  10. Have you tried steaming to see if it softens? I am always amazed what comes off with a bit of hot water.
  11. Would it not depend on what the numbers show, there is more than one way to skin a cat.
  12. While I agree that it is cheap, it has for the last 40 years or so been about 5% of household income, which is where it is at the moment. Back in 1990, I was paying 10p/kWh for electricity. So only doubled in last 35 years. My wage has gone up more.
  13. It is a natural cycle. Increase the amount of CO2 in the atmosphere and the global temperature will rise, well know science. Eventually all the stored carbon and hydrocarbons will be burnt and, apart from a small contribution from volcanoes and rotting vegetation (if any left), the temperature will start to slowly decrease. We are pretty certain we know how the Earth came out of the last ice age, but not seen too much research on how a planet cools from a CO2e rich atmosphere. Venus is not changing much. Though I doubt that is how your friend views it. Probably sees starving people in developing countries and thinks it is their own fault that crops have failed due to variable weather patterns, and if they were still a colony of ours then everything would be fine for them.
  14. Got felt up a lot.
  15. Not what goes though mine. I pressed the button and got this message. 'High Demand'
  16. I used to work for the RNIB.
  17. Just asked your wife and she said she was in a hurry to get home.
  18. Air at 16°C and 75% RH has about 10 grams of water in it per m3. If half of that is removed, to get 5lt of water (5000g), then 2000 m3 of air needs to be processed. That is about 2.5 tonnes. Sounds a lot but is only 23 litres/second. The energy needed to condense the vapour to liquid is 11,300 kg, or about 3 kWh/day, or 130W. From all that, does a large dehumidifier really need to be used, or is the process really inefficient.
  19. What is, making chlorine or preventing it being made?
  20. Chlorine can be produced from seawater quite easily with electrolysis.
  21. Youtube has some great resources on it.
  22. I was helping on my friend's farm. Had to get some sheep into a pen. One just refused to go in and just kept stepping backwards towards me. My farming friend said 'a good sheep will do that for you'.
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