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Everything posted by SteamyTea
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Oh yes, but it is not really comparable is it. Taking the same methodology, 99.75% of the solar irradiance is lost when growing trees.
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There is a huge difference between running a stove in a lab and then running one in a house. Maybe 50% up the chimney us a little harsh, but I doubt many will ever reach maximum efficiency for more than a few minutes at a time. So about 20 kWh of energy.
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That will be about 134 m2. Or about 170 kg of air. To heat that air up 1 K will take 170, kJ of energy, which is 47 kWh. So a 10 kW burner would take 4.7 hours to raise the room up 1 K. Timber has an energy density of about 4.5 kWh.kg-1, but half of that goes up the chimney, so you would be looking to put 20 kg of timber in it. (to me that seems an lot of timber to heat just the air up, so may have made a mistake) Yes, I was 1000 out, so 17 seconds to raise the room up 1 K and about 200 grams of timber.
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A 2 kW portable generator would give you enough juice to keep you going. And a lot less PM2.5/10s in the house.
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A winter photograph........
SteamyTea replied to ProDave's topic in General Self Build & DIY Discussion
A few seconds of my drive along the M4 yesterday. VID_20211127_093611102.mp4 -
Sewage treatment plant - air blower electricity costs
SteamyTea replied to David Essex's topic in Waste & Sewerage
These pumps draw about 100 W. Can you get a couple if PV modules and a second pump that runs when the sun is out, and switches off the mains powered pump. -
First kW, or first kWh. They are different things.
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Thought this 1960s self-build for sale might amuse
SteamyTea replied to SimonD's topic in General Self Build & DIY Discussion
Was mine as well. -
I misread it as optimism. On a good day it gives me a warm feeling.
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Thought this 1960s self-build for sale might amuse
SteamyTea replied to SimonD's topic in General Self Build & DIY Discussion
The decor looks more 1970's. Suppose this is right for a self build, start, then a decade later, it is time to decorate. -
Morning wood.
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Which ever way it is said, it is still quite a distance. Anyway it can be all closer together? How does it get the extra 2.7 kW? Is it via a built in resistance heater? If so, then the unit is too small.
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Heating for lime/clay plastering in winter
SteamyTea replied to luz624's topic in Plastering & Rendering
Why do you put fan on, us it to reduce the internal relative humidity? -
I think in all fairness they know it isn't the complete solution. Probably the quickest and cheapest way to get to the next round of internationally agreed targets.
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That will be a Number 2 then.
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Why not use a host name to SSH into. You can, if you want, give it a number.
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Why I have stuck to quarterly billing. Only 4 times a year it can go wrong.
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Is that the astrophysics Dr. Murphy who has morphed into social commentary and economics? He is not all bad.
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Bulb receivers are having trouble moving customers to other suppliers. It is strange how people will overspend on functional items like cookers and taps, but underspend on energy.
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They often haul a big dick around. Mine is 9 inches now.
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Low energy housing only becomes an issue when energy prices rise dramatically. If I had said in 1974 "I have seen the future of motoring, it weighs over 2 ton and does twelve to the gallon" everyone would have laughed. There are about 400,000 RangeRovers on the UK roads.
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If you compress it, the thermal resistance will reduce. Cant see a problem with cutting back, except it may change moisture absorption. I have always like the idea of spraying in a foam, but having worked in the industry, I would make sure that sprayers also fully cleaned up.
