I bought a rather nice mains LED thermometer off eBay for a couple of quid
- it's ex equipment by Digitron. Installed it in the kitchen above the built in amplifier and drilled a hole in the outside wall for the probe. It was hovering around 35 all day, so I suppose it's pretty accurate. Still reading 22 even at this time. Of course it didn't occur to me until it was fitted and fired up that you don't really need a four figure display for the weather - yet. Wonder if I can alter it to read two digits and oC?
Yesterday I bought a sunlonger[1] and last night I slept outside on the patio (well, the sunlounger was on the patio, I was on the sunlounger ;-) ) wearing nowt but a pair of shorts[2]; woke up at ~06:30 and it was a tad nippy so went to bed as the bedroom had now cooled down (thanks to SWMBO sleeping with the windows wide open).
I can see the sunlounger on the patio beckoning me as I type :-)
Sweet dreams.
[1] Initially went to Homebase who had decided that the hottest week in the year (potentially the hottest since records began) would be a good time to re-arrange the store, so all the outdoor stuff was piled in a heap where it was impossible to find anything. Went to Focus instead.
[2] *NO!* I *don't* have a webcam ;-)
Aug 7 00:54:35 Temperature - Outdoors 23.0 Aug 7 00:58:11 Temperature - Loft 28.0 Aug 7 00:59:23 Temperature - Bedroom 28.0 Aug 7 01:00:28 Temperature - Fridge 2.5 Aug 7 01:02:53 Temperature - Freezer -22.5 Aug 7 01:09:08 Temperature - Garage 27.5
These were a couple of highs from yesterday:
Aug 6 15:02:56 Temperature - Loft 44.0 Aug 6 16:41:49 Temperature - Outdoors 38.0
The outdoors reading is subject to overreading when sun's out, as it isn't adequately shielded from reradiated heat from nearby surfaces. (It's actually quite hard to measure outdoor temperature properly.)
In my dad's gaff, a couple of rooms are like one of those old night storage heaters. The (south-facing!) bricks heat up and it's like an oven in there for at least 3 hours after everyone else's place has cooled down a few degrees.
Get one of those camping lamps which attract flying things and stick it on a pole in the garden.
It won't stop the moths coming in the house but you will get a certain amount of satisfaction from hearing the pops as his brothers and sisters get fried out in the garden.
Andrew
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Having just installed one with at the moment the probe simply sticking out of the wall, any tips on the best way of both making it look as good as possible with some form of cover which also helps the accuracy?
RichardS> We've been feeling pretty smug about the decision to fit RichardS> ceiling fans in the bedrooms a couple of years ago...
One of the best bits of work I ever did.
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+-------------------------------------------------------------------------+ |Andy Cunningham aka AndyC the WB | andy -at- cunningham.me.uk |
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Many moths do us far more good than harm, the cinnabar moth for example is an excellent biological controller of ragwort which is a distinctly noxious weed. I'm sure there are innumerable other 'good' moths, the cinnabar moth is just one I know about.
Not to mention that many moths are very beautiful.
The temperature the met office reports is the air temperature. Measuring that without picking up reradiated heat is difficult. I dare say some google searching might reveal their methods. Probably a good place to measure that would be under a canopy of vegitation which is blocking the sunlight, and dense enough not to allow reeradiated heat down, but open enough for free flow of air. Also need to keep sensor dry, or you will be measuring the wet bulb temperature when it rains.
What I was thinking of doing was placing two sensors, probably around opposite sides of the house, and using the lowest reading at any one time. I don't have a north facing wall -- all my walls get sunlight at some point in the day.
Another factor you might consider is that when you walk around outside, you do feel the effects of direct sunlight and reradiated heat, so from some points of view, thet might be more representative of what you actually feel. However, it won't match weather forcast figures if you were wanting to compare with those, and you couldn't even compare two sensors as the effects of reradiated heat would never be the same in two different places.
I believe you put the sensor in a "screen" (a white painted cupboard with louvred doors on all sides, on legs) which has to be a certain height (1 metre?) above mown grass.
Alternatively, to avoid frying possible rarities and in any event to avoid such unfriendliness to wildlife, frame up some screens to put in your windows!
That's easy 50 degs. I worked Mar/Oct of 2001 in Kuwait 50 was not unusual in the middle of summer, but then it always summed there. Kuwait is the hottest permanently inhabited place on earth, so I have been informed.
Steve R
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I'm not sure if it has to be above any particular surface, but it must be shaded both from the sun and the wind.
Of course, what humans feel is a more "real" temperature in many senses. If the sun is blazing down on tarmac or concrete, it will feel a darn sight hotter than inside a shady box. My car sensor informed it was 31C above the M6/M60 on Monday evening at 7pm. I don't much care if the Met Office only recorded 27 in Manchester at 2pm or whatever - I was immersed in the stuff at a muggy 31 ! I willingly sacrificed a couple of mpg to be at a dry 21C, it has to be said...
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