"thescullster" wrote in message
...
Hi all

I have come by an old barometer - something like the item shown here
http://www.hemswell-antiques.com/ant...ter-33028.html
(although not quite of the quality).
Now I know that these devices measure atmospheric pressure, but I am not
clear on how much this will be affected by the instrument location.

Does a heat source like a radiator change atmospheric pressure?
Can I mount this on a wall above a radiator and expect it to work?

From my memory of the barometer, the needle doesn't appear to move much in
operation. Is this because it was previously in a centrally heated house,
or is there likely to be something wrong here?


Not sure about the instrumentation but I don't think it would be a good idea
to put antique oak woodwork above a radiator.

mark